Hangzhou Chase Technology Co., Ltd

What is Ferrite Magnet?(2022年02月22日)

maglastic — 2022-02-17T12:08:33+0900

https://www.maglastic.com/what-is-ferrite-magnet.html

We provide different types of common ferromagnetic materials, for example, bonded magnetic compounds to meet the diverse application requirements for our customers, including hard magnetic bonded compounds and soft magnetic bonded compounds. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.

Many people may have heard of ferrite magnet in their lives, but they don't know what they are. Today, I will give you a detailed introduction to what is ferrite magnet.

The main raw materials of ferrite magnet include SrO or BaO and Fe2O3. Ferrite magnet is a sintered permanent magnet material composed of barium and strontium ferrite. In addition to strong anti-demagnetization performance, the ferrite magnetic materials also have the advantage of low cost. The magnet of the opposite sex must be magnetized in the direction taken because it is oriented along the manufacturing direction; while the magnet of the same sex can be magnetized in any direction because it has no orientation, although a slightly stronger magnetic induction is often found on the side where the pressure is the smallest. Due to low cost, moderate performance, and good temperature resistance, ferrite magnet density has a wide range of applications, from motors and speakers to toys and crafts. Therefore, it is currently the most widely used permanent magnet material.

1. Classification of Ferrite Magnet
According to different production processes, ferrite bonded magnet is divided into sintering and bonding. Among them, sintering is divided into dry pressing type and wet pressing type, and bonding is divided into extrusion molding, compression molding and injection molding. Injection magnets are a type of magnet that has grown rapidly in recent years due to its advantages such as low energy consumption, short molding cycle, suitable for mass production, free magnetic pole orientation, and easy molding of complex devices.

According to whether an external magnetic field is applied during molding, it can be divided into isotropic permanent magnets and anisotropic permanent magnets. The ferrite magnet properties of isotropic sintered ferrite magnets are weak, but they can be magnetized in different directions of the magnet; while the anisotropic ferrite magnet has strong magnetic properties, but can only be magnetized along the predetermined magnetization direction.

The soft, elastic and twistable magnet made of bonded ferrite powder and synthetic rubber is also called rubber magnet.

2. Performance Characteristics of Ferrite Magnet
Ferrite magnet is characterized by high coercivity and low remanence in performance. Ferrite magnet has high coercivity as well as strong anti-demagnetization ability, and is suitable for working in dynamic magnetic circuit environments with large temperature changes.

The ferrite magnet is hard and brittle and can be cut with emery tools.

The main raw material is oxide, so it is not easy to corrode and generally does not require plating.

Working temperature: -40℃ to +300℃.

We hope that you can better understand what is a ferrite magnet through the above description.

The Difference between Soft and Hard Magnetic Materials(2022年02月21日)

maglastic — 2022-02-17T12:08:03+0900

https://www.maglastic.com/the-difference-between-soft-and-hard-magnetic-materials.html

Among the magnetic materials, permanent magnetic materials are also called "hard magnetic materials", which are materials that can maintain constant magnetic properties once they are magnetized. Commonly used permanent magnet materials include AlNiCo permanent magnet alloys, FeCrCo permanent magnet alloys, permanent magnet ferrites, rare earth permanent magnet materials and composite permanent magnet materials.

Soft magnetic materials are magnetic materials with low coercivity and high permeability. They are easy to magnetize and demagnetize. Their main function is to conduct magnetic and electromagnetic energy conversion and transmission. They are widely used in various electric energy conversion equipment. Soft magnetic materials mainly include metal soft magnetic materials, soft ferromagnetic materials and other soft magnetic materials. The most widely used soft magnetic materials are iron-silicon alloys (silicon steel sheets) and various soft ferrites.

The difference between soft magnetic material and hard magnetic material
The main difference between soft magnetic materials and hard magnetic materials is that hard magnetic materials have high anisotropy field, high coercivity, large hysteresis loop area, and large magnetic field required for technical magnetization to saturation. Due to the low coercivity of the soft magnetic material, it is easy to demagnetize after the technical magnetization reaches saturation and the external magnetic field is removed, while the hard magnetic material due to the high coercivity, after the technical magnetization to saturation and the magnetic field is removed, it will remain long-term very strong magnetism, so hard magnetic materials are also called constant magnetic materials.

The Application of Injection Molded Magnets in Automobile and Industrial Fields(2022年02月20日)

maglastic — 2022-02-17T12:07:33+0900

https://www.maglastic.com/the-application-of-injection-molded-magnet-in-automobile-and-industrial-fields.html

Injection magnet is a permanent magnet made of plastic (adhesive) mixed with permanent magnet powder. It has the characteristics of stable magnetism, impact resistance, low density, easy forming and processing and so on, which can replace metal magnet to make permanent magnetic products with high dimensional accuracy, complex shapes and light weight. As a kind of bonded permanent magnet, this article mainly introduces its application in the industrial and automobile fields.

The application of injection molded magnet in the industrial field is mainly manifested in printing equipment and micro special motor:

Printing equipment
The mass fraction of ferrite magnetic powder of xerographic injection molded magnetic roller can reach up to 90%. At present, the adhesive for manufacturing injection molded magnetic roller is mainly nylon resin with high temperature resistance and aging resistance. The magnetic powders are mainly strontium ferrite + barium ferrite, aluminum iron boron, neodymium iron boron as well as rare earth and other magnetic powders, among which, ferrite magnetic powders are widely used, and rare earth ferrite and neodymium iron boron magnetic powder have better application prospects.

Micro special motor
High-performance injection molded magnet DC motors, especially three-slot motors, CPU fan motors and brushless motors are widely used, the main reasons are: they have the characteristics of good injection molded, magnetic and chemical stability, high resistivity, which are suitable for high-frequency conversion, also, they have certain elasticity, and not easy to crack and break. What's more, they have good processing performance and can be made into products of different shapes and sizes, which are easy to punch, cut, perforate and wind as well as have high assembly and magnetization efficiency.

The application of injection molded magnets in the automobile field is mainly manifested in automobile parts:

In automobiles, the micro special motor is mainly used for measuring instrument and sensing system,for example, the tire sidewall torque measurement device uses a magnetic injection strip as a signal collection accessory (data on the force between the tire and the road surface), and is also used in the motor of the starting device.

Permanent Magnet Materials Are Used in Motors(2022年02月19日)

maglastic — 2022-02-17T12:06:59+0900

https://www.maglastic.com/permanent-magnet-materials-are-used-in-motors.html

We provide different types of common magnetic materials, for example, bonded magnetic compounds to meet the diverse application requirements for our customers, including hard magnetic bonded compound and soft magnetic compound. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.

Permanent magnets are widely used in our lives. Many people are curious about what are made out of permanent magnets? Most permanent magnets are used in the manufacture of various types of permanent magnet motors, the large ones are exciters, auxiliary exciters, generators in airplanes; the small ones are floppy and hard drive motors used in computers, printing motors, VCD and DVD CD motors, bicycle motors and car motors, hundreds of millions of toy motors and so on. These are all the examples of permanent magnets in everyday life.

The earliest invented motor used permanent magnets to provide magnetic flux to the air gap between the rotor and the stator. At that time, the energy density of permanent magnet materials was very small, and the power (output) of the motor was too small to meet the requirements, so people turned to current to generate magnetic flux. The torque of a motor is proportional to the current and also proportional to the magnetic flux. The power of the motor is equal to the product of the torque and the speed. Using current to generate magnetic flux consumes more electrical energy, while using permanent magnets to provide magnetic flux can save electrical energy. Therefore, with the progress of permanent magnet materials, there are more and more permanent magnet motors. Recently, with increasing calls for environmental protection and energy conservation, some countries have been researching and developing permanent magnet motors for electric vehicles to replace ordinary motors below 500kW.

The permanent magnets used in permanent magnet motors are mainly sintered and injection molded. In order to reduce weight and improve efficiency, small and micro motors with lower power generally choose injection molded permanent magnets. Injection molded ferrites are also easy to shape design to meet Motor use requirements.

During the operation of the motor, the permanent magnet is periodically subjected to the demagnetizing field; at the same time, the energy loss of each part of the motor eventually becomes heat, which makes the temperature of the motor reach a high temperature when it reaches a thermal equilibrium. Therefore, the permanent magnet material used in the motor must have a high intrinsic coercivity and critical magnetic field.

(1) The compressive stress on the permanent magnet is greater than the tensile stress in the motor structure;

(2)The tensile strength of the injection molded permanent magnet is greater than that of the sintered permanent magnet, and many motors adopt it.

Magnetic Materials in Permanent Magnet Motors(2022年02月18日)

maglastic — 2022-02-17T12:06:27+0900

https://www.maglastic.com/magnetic-materials-in-permanent-magnet-motors.html

We provide different types of common magnetic materials, for example, bonded magnetic compounds to meet the diverse application requirements for our customers, including hard magnetic bonded compounds and soft magnetic bonded compounds. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.

Permanent magnet motors use permanent magnets to generate the magnetic field of the motor. It does not require an excitation coil or excitation current. It is a good energy-saving motor because of its high efficiency and simple structure. With the rapid development of various motors and the invention of current magnetizers, people have conducted in-depth research on the mechanism, composition and manufacturing technology of permanent magnet materials. A variety of permanent magnet materials such as carbon steel, tungsten steel, and cobalt steel have been discovered one after another. The magnetic material used in permanent magnet is neodymium iron boron, samarium cobalt and ferrite.

The neodymium iron boron permanent magnet materials are called the "magnet king", and it was discovered in 1983. It has been 37 years since China and Europe and the United States simultaneously started industrialization in Japan in 1985. NdFeB permanent magnets are tetragonal crystals formed of neodymium, iron, and boron. According to different production processes, they can be divided into sintered NdFeB, bonded NdFeB and hot-pressed NdFeB. Due to different production processes, they have big differences in magnetic properties of product, post-processing and applications.

Samarium cobalt magnetic material used in permanent magnet is a kind of rare earth permanent magnet, which is made of rare earth elements samarium, cobalt and other elements after proportioning. It has a high magnetic energy product and a very low temperature coefficient, with a maximum operating temperature of 350°C. Compared with neodymium iron boron, samarium cobalt permanent magnets are more suitable for working in high temperature environments. It can still maintain good temperature stability and chemical stability above 180°C. At the same time, it has strong corrosion and oxidation resistance. Therefore, it is widely used in aerospace, defense and military industry, microwave devices, communications, medical equipment, various magnetic transmission devices, sensors, magnetic processors, motors, magnetic cranes and so on.

Ferrite permanent hard magnetic materials are also called hard ferrites. This material has high coercivity and is not easy to demagnetize after magnetization. The raw materials for the preparation of permanent ferrites are mainly strontium oxide or barium oxide and iron trioxide (other chemical components such as cobalt (Co) and lanthanum (La) will be added to some specific high grades to improve their magnetic properties). Permanent ferrite is generally a magneto plumbite structure, which is mainly used for speakers, earphones, motors and various instruments.

The use of injection molded ferrite, injection molded NdFeB and other injection molded magnetic materials in permanent magnet motors has gradually increased. It has been widely used in sensors, motor magnets and other fields, providing new design solutions for motor design, especially in the field of small and micro motors.

Magnetic Materials and Their Characteristics(2022年02月17日)

maglastic — 2022-02-17T12:05:46+0900

https://www.maglastic.com/magnetic-materials-and-their-characteristics.html

We provide different types of common magnetic materials, for example, bonded magnetic compounds to meet the diverse application requirements for our customers, including hard magnetic bonded compounds and soft magnetic bonded compounds. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.

In childhood, smfen magnets were one of our favorite toys. We always played with them and were amazed by their peculiar characteristics. Two magnets always have two sides that can attract each other, and two sides will always repel each other. We always split them up and down. In middle and high school, we learned from the knowledge that the compass leveraged the theory of magnetism.

Now in our lives, different magnetic materials are used in many places. So today we come to understand its characteristics.

Characteristics of magnetic materials:

1. Magnetic materials and their properties will produce strong or weak magnetic fields under the action of external magnetic fields. Its magnetic field strength is marked out in a table, showing a regular curve. And although this kind of magnetic field is not substantial, if you place a piece of magnetic material on the ground and sprinkle some magnetic powder around it, its magnetic field will be represented by the magnetic powder.

2. The magnetic properties of magnetic materials will vary with the temperature. When the temperature of a magnetic material increases, its magnetism will decrease, and when the temperature increases to a certain level, its own magnetic function will disappear.

3. The resistivity is relatively high. The resistivity of magnetic materials is higher than that of ordinary metals and can be used in fire protection systems in circuits.

Magnetic materials are now widely used in production, life, and national defense science and technology. It is also widely used in various motor starting systems, transformer pressure systems, and made into magnetic components, etc. Moreover, the new magnetic material products can also be produced through extrusion, calendering, injection molding and other processes like ordinary plastics, and can also be made into flexible products that can be used in different occasions.

Home Appliances(2021年12月19日)

maglastic — 2021-12-15T11:42:40+0900

https://www.maglastic.com/home-appliances-bonded-magnetic-compound.html

We provide different kinds of magnetic materials, for example, bonded magnetic compounds to meet the diverse application requirements for our customers, including hard magnetic compound and soft magnetic compound. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.

Aiming at the demand of energy-saving and intelligent home appliances, we are committed to improving solutions about man-machine interaction, noise reduction, and energy saving. Our products can be used in brushless DC motor, sensors.

As a typical application case of a bonded magnetic compound, a magnetic roller for the printer is the main component that carries toner in the printer. Comparing to the traditional sintered magnetic material, the magnetic roller made of bonded magnet can realize with multiple radial poles, like 4poles, 5poles, 6poles. Furthermore, the length to diameter ratio of the magnetic roller can reach to more than 30, which can not be realized in the sintered magnetic material. The magnetic roller made of the magnetic compound through injection molding or extrusion greatly improve production efficiency, and have the advantages of good dimensional consistency, uniform magnetic field distribution, and excellent mechanical properties. It achieves high-quality development effects for printers.

The rotor for the bladeless fan that made of injection molding magnetic compound can solve the sintered ferrite rotor’s issues, like complicated processing and brittleness of the finished products. The recommended material is ferrite/PA12 compounds. The insert molding process realizes efficient production and improves the cracking problem of sintered magnetic rings during the second injection. The bonded ferrite has excellent mechanical properties and will not be easily cracked during transportation and assembly. The rotor made of ferrite compound guarantees the uniformity of dimension and magnetic properties for each product, thereby improving the noise and vibration problems of the motor.

The rotor with radial and quadrupole magnetization for the freezer. Comparing to the sintered arc magnet that pasted by glue, the rotor made by injection reduces the need for complicated manual processes. The injection molding process ensures reliability and avoids the hidden danger of falling off during motor operation. The recommended material is ferrite/PA12 compounds. As the diversity of magnetic pole orientation for the rotor made of the magnetic compound, we use a special magnetic field waveform design, which makes the product with driving and induction effect. Because of injection molding, the uniform of dimension and magnetic field distribution make the motor with excellent dynamic balance. And it finally makes the motor with low noise and stable operation.

The rotor of electronic expansion valve in the thermal management system. The electronic expansion valve (EEV) controls the flow of refrigerant entering a direct expansion evaporator. It plays an important role to reduce energy consumption. With small size, multiple poles, high precision in dimension, EEV has the requirement of not cracking in high and low-temperature environments for a long time using in the refrigerant . The rotor that made of bonded ferrite/PPS or NdFeB/PPS will meet those requirements. Ferrite/PPS series ((BH) max = 1.6MGOe) is applied to the rotor with low power, and NdFeB/PPS series ((BH) max = 2-8MGOe) is recommended to use in the EEV rotor with high power. With the increasing demand for automotive thermal management systems, we are also constantly developing the magnetic compound with higher magnetic performance, higher cost-effective and lower demagnetization rates at high and low temperatures to meet the design requirements of the new generation of EEV rotors.

High Performance NdFeB: the Strongest Magnetic Permanent Magnet Material Up to Now(2021年12月18日)

maglastic — 2021-12-15T11:42:02+0900

https://www.maglastic.com/high-performance-ndfeb-the-strongest-magnetic-permanent-magnet-material-up-to-now.html

1. Classification of magnetic materials
At present, magnetic materials are mainly divided into permanent magnet materials and soft magnets. The magnetism of permanent magnet materials can be permanently preserved, mainly including alloy permanent magnet materials represented by neodymium iron boron and ferrite permanent magnet materials.

The magnetism of soft magnets can be magnetized by external action, but the magnetism is also easy to disappear.

Neodymium iron boron (NdFeB) is a third-generation rare earth permanent magnet material, mainly composed of neodymium, iron, and boron. Among them, neodymium accounts for 25% to 35%, iron accounts for 65% to 75%, and boron It accounts for about 1%. NdFeB has the advantages of high remanence, high coercivity and high magnetic energy product, and is by far the strongest magnetic material in permanent magnetic materials.

Compared with ferrite, NdFeB has a higher magnetic energy product, and at the same time its stability is stronger and its magnetic force is more controllable.

With the continuous development of the global new energy automobile and robot industry, injection molded NdFeB is expected to become the main development direction of magnetic materials in the future.

2. Classification of NdFeB
According to the production process, NdFeB can be divided into sintered NdFeB and bonded NdFeB. Sintered NdFeB adopts powder metallurgy technology. The alloy after smelting is made into powder and pressed in a magnetic field; NdFeB is made of NdFeB magnetic powder and resin through injection molding after extruding and granulating. Compared with sintered NdFeB, bonded NdFeB has better corrosion resistance, can be processed into products of various shapes, low energy consumption and suitable for mass production.

Different Types of Permanent Magnet Materials(2021年12月17日)

maglastic — 2021-12-15T11:41:27+0900

https://www.maglastic.com/different-types-of-permanent-magnet-materials.html

Permanent magnetic materials are also called hard magnetic materials. It is characterized by high anisotropy field, high coercivity, large hysteresis loop area, and large magnetization field required for magnetization to saturation. After removing the external magnetic field, it can still maintain strong magnetism for a long time. The material of permanent magnet has ferrite, rubber magnet, injection magnet, samarium cobalt, neodymium iron boron magnets, and alnico.

1. Ferrite
Ferrite is a non-metallic magnetic material. Ferrite compound can also be called magnetic ceramics. When we take apart the traditional radio, the speaker magnet inside is made of ferrite.

2. Rubber magnet
Rubber magnets are one of the different kind of magnetic material series. It is a soft, elastic and twistable magnet made of bonded ferrite magnetic powder and synthetic rubber compounded by extrusion molding, calendering molding, injection molding and other processes. Therefore, it can be processed into strips, rolls, sheets, blocks, rings and various complex shapes.

3. Injection magnet
Injection magnets are a kind of magnets that are firstly mixed and pelletized by polymer resin and magnetic powder through an extruder, and finally injection molded. Its toughness is good. It can not only be machined, but also can be directly injected into various complex parts.

4. Samarium cobalt
Samarium cobalt magnets are mainly composed of samarium and cobalt. Since these two materials are expensive, samarium cobalt magnets are also the most expensive among several types of magnets. The energy product of samarium cobalt magnets can currently reach 30MGOe, or even higher. In addition, samarium cobalt magnets have high coercivity and high temperature resistance. It can be used at high temperature of 350 ℃. Therefore, it cannot be replaced in many applications.

5. Neodymium iron boron
Neodymium magnet material is a magnet product that is widely used and developed rapidly. NdFeB has only been widely used since its invention for more than 20 years. The price is not very high because of its high magnetic properties and easy processing, so its application field is expanding rapidly.

6. Aluminum nickel cobalt
AlNiCo magnets have two processes: casting and sintering. The magnetic energy product of AlNiCo can reach 9MGOe. In addition, its biggest feature is high temperature resistance, and its working temperature can be as high as 550 degrees Celsius. However, AlNiCo is very easy to demagnetize under a reverse magnetic field. If you push the same poles of two AlNiCo (two N or two S) together, the magnetic field of one of the magnets will be returned or reversed. Therefore, it is not suitable for working in a reverse magnetic field (such as a motor).

Common Magnetic Materials in Permanent Magnets(2021年12月16日)

maglastic — 2021-12-15T11:40:52+0900

https://www.maglastic.com/common-magnetic-materials-in-permanent-magnets.html

The common magnetic materials used in permanent magnets are AlNiCo, ferrite permanent magnet materials and rare earth permanent magnet materials.

Al-Ni-Co alloy is developed from Al-Ni-Fe alloy. AlNiCo magnets have low coercivity, so any iron should be strictly prohibited from contacting AlNiCo permanent magnet materials during use to avoid local demagnetization of permanent magnets and distortion of the magnetic flux distribution in the magnetic circuit. The advantage of AlNiCo magnets is that the temperature coefficient is small, and the degradation of permanent magnet characteristics due to temperature changes is also small. However, the material suitable for making permanent magnet is hard and brittle, so its processing is difficult. The main applications of AlNiCo are in electronic ignition systems, watt-hour meters, voltammeters, medical instruments, industrial motors and other fields.

Ferrite permanent magnet material is one of the most widely used permanent magnet materials, and its main component is MoFe2O3. It has the advantages of large coercive force, light weight, abundant source of raw materials, low price, oxidation resistance, corrosion resistance, large anisotropy constant of the magnetic crystal, and its demagnetization curve is approximately a straight line. And its disadvantages are that the remanence is low, the temperature coefficient is large, and it is fragile. The coercivity of ferrite permanent magnet materials is between that of AlNiCo alloy materials and rare earth cobalt permanent magnet materials. Since its low remanence, it is generally suitable to be designed into a flat shape. Ferrite magnetic materials are mainly used in fields such as motors, speakers, toys, and handicrafts.

Rare earth permanent magnetic materials have the advantages of high coercivity, large maximum magnetic energy product, and reversible permeability. Therefore, their magnetic properties far exceed other magnetic materials such as ferrite and AlNiCo. The emergence of rare earth permanent magnet materials has led to the emergence of permanent magnet synchronous motors with light weight and small size, thus expanding the application range of permanent magnet synchronous motors. The rare earth cobalt permanent magnet material has excellent performance. However, its price is relatively high, so it is necessary to make careful calculations when designing, and strive to achieve the desired effect with the smallest volume. Due to the high coercivity of rare earth cobalt permanent magnet materials, it can be made into sheet permanent magnet materials to reduce volume and save materials.

The performance of injection molded ferrite and injection molded rare earth materials is lower than that of sintered materials. However, due to its unique advantages, it has gradually replaced sintered permanent magnet materials as new permanent magnet materials in small and micro motors, sensors and other fields.

Applications(2021年12月15日)

maglastic — 2021-12-15T11:40:15+0900

https://www.maglastic.com/applications/

Plastic Bonded Magnets Applied In Every Corner Of Your Life

Automotive
To meet the requirements of electric and intelligent vehicles, we focus on providing lightweight, low energy consumption, reliable and safe solutions.

Industrial Supplies
We are committed to improving solutions about the high-speed motor, step-less speed regulating motor, and shielding structure optimization.

Daily Use
In industries such as cosmetics, smart wear, toys and other industries, we can provides innovative application possibilities and improve user experience for your future products.

Office Supplies
Our products can be applied into electromagnetic shielding, printer magnetic roller, magnetic connector and so on, which can offer application possibilities for smart devises.

Home Appliances
Aiming at the demand of energy-saving and intelligent home appliances, we are committed to improving solutions about man-machine interaction, noise reduction and energy saving.

What is Ferrite Magnet?(2021年10月23日)

maglastic — 2021-10-14T16:13:27+0900

https://www.maglastic.com/what-is-ferrite-magnet.html

Many people may have heard of ferrite magnet in their lives, but they don't know what they are. Today, I will give you a detailed introduction to what is ferrite magnet.

The main ferrite magnetic materials of ferrite magnet include SrO or BaO and Fe2O3. Ferrite magnet density is a sintered permanent magnet material composed of barium and strontium ferrite. In addition to strong anti-demagnetization performance, this magnetic material also has the advantage of low cost. The magnet of the opposite sex must be magnetized in the direction taken because it is oriented along the manufacturing direction; while the magnet of the same sex can be magnetized in any direction because it has no orientation, although a slightly stronger magnetic induction is often found on the side where the pressure is the smallest. Due to low cost, moderate performance, and good temperature resistance, ferrite magnet have a wide range of applications, from motors and speakers to toys and crafts. Therefore, it is currently the most widely used permanent magnet material.

1. Classification of Ferrite Magnet
According to different production processes, ferrite magnet is divided into sintering and bonding. Among them, sintering is divided into dry pressing type and wet pressing type, and bonding is divided into extrusion molding, compression molding and injection molding. Injection magnets are a type of magnet that has grown rapidly in recent years due to its advantages such as low energy consumption, short molding cycle, suitable for mass production, free magnetic pole orientation, and easy molding of complex devices.

The soft, elastic and twistable magnet made of bonded ferrite powder and synthetic rubber is also called rubber magnet.

The ferrite magnet is hard and brittle and can be cut with emery tools.
The main raw material is oxide, so it is not easy to corrode and generally does not require plating.

Working temperature: -40℃ to +300℃.
We hope that you can better understand what is a ferrite magnet through the above description.

The Difference between Soft and Hard Magnetic Materials(2021年10月22日)

maglastic — 2021-10-14T16:12:41+0900

https://www.maglastic.com/the-difference-between-soft-and-hard-magnetic-materials.html

Soft magnetic material and hard magnetic material
Among the magnetic materials, permanent magnetic materials are also called "hard magnetic materials", which are materials that can maintain constant magnetic properties once they are magnetized. Commonly used permanent magnet materials include AlNiCo permanent magnet alloys, FeCrCo permanent magnet alloys, permanent magnet ferrites, rare earth permanent magnet materials and composite permanent magnet materials.

Soft magnetic materials are magnetic materials with low coercivity and high permeability. They are easy to magnetize and demagnetize. Their main function is to conduct magnetic and electromagnetic energy conversion and transmission. They are widely used in various electric energy conversion equipment. Soft magnetic materials mainly include metal soft magnetic materials, ferrite soft magnetic materials and other soft magnetic materials. The most widely used soft magnetic materials are iron-silicon alloys (silicon steel sheets) and various soft ferrites.

The main difference between hard magnetic materials and soft magnetic materials is that hard magnetic materials have high anisotropy field, high coercivity, large hysteresis loop area, and large magnetic field required for technical magnetization to saturation. Due to the low coercivity of the soft magnetic material, it is easy to demagnetize after the technical magnetization reaches saturation and the external magnetic field is removed, while the hard magnetic material due to the high coercivity, after the technical magnetization to saturation and the magnetic field is removed, it will remain long-term very strong magnetism, so hard magnetic materials are also called constant magnetic materials.

The Application of Injection Molded Magnets in Automobile and Industrial Fields(2021年10月21日)

maglastic — 2021-10-14T16:12:02+0900

https://www.maglastic.com/the-application-of-injection-molded-magnet-in-automobile-and-industrial-fields.html

The application of injection molded magnet in the industrial field is mainly manifested in printing equipment and micro special motor:

The application of injection molded magnets in the automobile field is mainly manifested in automobile parts:
In automobiles, the micro special motor is mainly used for measuring instrument and sensing system,for example, the tire sidewall torque measurement device uses a magnetic injection strip as a signal collection accessory (data on the force between the tire and the road surface), and is also used in the motor of the starting device.

Permanent Magnet Materials Are Used in Motors(2021年10月20日)

maglastic — 2021-10-14T16:11:17+0900

https://www.maglastic.com/permanent-magnet-materials-are-used-in-motors.html

(1) The compressive stress on the permanent magnet is greater than the tensile stress in the motor structure;

(2)The tensile strength of the injection molded permanent magnet is greater than that of the sintered permanent magnet, and many motors adopt it.

Magnetic Materials in Permanent Magnet Motors(2021年10月19日)

maglastic — 2021-10-14T16:10:33+0900

https://www.maglastic.com/magnetic-materials-in-permanent-magnet-motors.html

Samarium magnetic material used in permanent magnet is a kind of rare earth permanent magnet, which is made of rare earth elements samarium, cobalt and other elements after proportioning. It has a high magnetic energy product and a very low temperature coefficient, with a maximum operating temperature of 350°C. Compared with neodymium iron boron, samarium cobalt permanent magnets are more suitable for working in high temperature environments. It can still maintain good temperature stability and chemical stability above 180°C. At the same time, it has strong corrosion and oxidation resistance. Therefore, it is widely used in aerospace, defense and military industry, microwave devices, communications, medical equipment, various magnetic transmission devices, sensors, magnetic processors, motors, magnetic cranes and so on.

Ferrite permanent magnet materials are also called hard ferrites. This material has high coercivity and is not easy to demagnetize after magnetization. The raw materials for the preparation of permanent ferrites are mainly strontium oxide or barium oxide and iron trioxide (other chemical components such as cobalt (Co) and lanthanum (La) will be added to some specific high grades to improve their magnetic properties). Permanent ferrite is generally a magneto plumbite structure, which is mainly used for speakers, earphones, motors and various instruments.

Magnetic Materials and Their Characteristics(2021年10月18日)

maglastic — 2021-10-14T16:10:02+0900

https://www.maglastic.com/magnetic-materials-and-their-characteristics.html

In childhood, magnets were one of our favorite toys. We always played with them and were amazed by their peculiar characteristics. Two magnets always have two sides that can attract each other, and two sides will always repel each other. We always split them up and down. In middle and high school, we learned from the knowledge that the compass leveraged the theory of magnetism.

Now in our lives, different magnetic materials and their properties are used in many places. So today we come to understand its characteristics.

Characteristics of magnetic materials:
1. Magnetic materials will produce strong or weak magnetic fields under the action of external magnetic fields. Its magnetic field strength is marked out in a table, showing a regular curve. And although this kind of magnetic field is not substantial, if you place a piece of magnetic material on the ground and sprinkle some magnetic powder around it, its magnetic field will be represented by the magnetic powder.

3. The resistivity is relatively high. The resistivity of magnetic materials is higher than that of ordinary metals and can be used in fire protection systems in circuits.

Home Appliances Bonded Magnetic Compound(2021年10月17日)

maglastic — 2021-10-14T16:09:30+0900

https://www.maglastic.com/home-appliances-bonded-magnetic-compound.html

1.
As a typical application case of a bonded magnetic compound, a magnetic roller for the printer is the main component that carries toner in the printer. Comparing to the traditional sintered magnetic material, the magnetic roller made of bonded magnet can realize with multiple radial poles, like 4poles, 5poles, 6poles. Furthermore, the length to diameter ratio of the magnetic roller can reach to more than 30, which can not be realized in the sintered magnetic material. The magnetic roller made of the magnetic compound through injection molding or extrusion greatly improve production efficiency, and have the advantages of good dimensional consistency, uniform magnetic field distribution, and excellent mechanical properties. It achieves high-quality development effects for printers.

2.
The rotor for the bladeless fan that made of injection molding magnetic compound can solve the sintered ferrite rotor’s issues, like complicated processing and brittleness of the finished products. The recommended material is ferrite/PA12 compounds. The insert molding process realizes efficient production and improves the cracking problem of sintered magnetic rings during the second injection. The bonded ferrite has excellent mechanical properties and will not be easily cracked during transportation and assembly. The rotor made of ferrite compound guarantees the uniformity of dimension and magnetic properties for each product, thereby improving the noise and vibration problems of the motor.

3.
The rotor with radial and quadrupole magnetization for the freezer. Comparing to the sintered arc magnet that pasted by glue, the rotor made by injection reduces the need for complicated manual processes. The injection molding process ensures reliability and avoids the hidden danger of falling off during motor operation. The recommended material is ferrite/PA12 compounds. As the diversity of magnetic pole orientation for the rotor made of the magnetic compound, we use a special magnetic field waveform design, which makes the product with driving and induction effect. Because of injection molding, the uniform of dimension and magnetic field distribution make the motor with excellent dynamic balance. And it finally makes the motor with low noise and stable operation.

4.
The rotor of electronic expansion valve in the thermal management system. The electronic expansion valve (EEV) controls the flow of refrigerant entering a direct expansion evaporator. It plays an important role to reduce energy consumption. With small size, multiple poles, high precision in dimension, EEV has the requirement of not cracking in high and low-temperature environments for a long time using in the refrigerant . The rotor that made of bonded ferrite/PPS or NdFeB/PPS will meet those requirements. Ferrite/PPS series ((BH) max = 1.6MGOe) is applied to the rotor with low power, and NdFeB/PPS series ((BH) max = 2-8MGOe) is recommended to use in the EEV rotor with high power. With the increasing demand for automotive thermal management systems, we are also constantly developing the magnetic compound with higher magnetic performance, higher cost-effective and lower demagnetization rates at high and low temperatures to meet the design requirements of the new generation of EEV rotors.

High Performance NdFeB: the Strongest Magnetic Permanent Magnet Material Up to Now(2021年10月16日)

maglastic — 2021-10-14T16:08:50+0900

https://www.maglastic.com/high-performance-ndfeb-the-strongest-magnetic-permanent-magnet-material-up-to-now.html

The magnetism of soft magnets can be magnetized by external action, but the magnetism is also easy to disappear.

Compared with ferrite, NdFeB has a higher magnetic energy product, and at the same time its stability is stronger and its magnetic force is more controllable.

Different Types of Permanent Magnet Materials(2021年10月15日)

maglastic — 2021-10-14T16:08:05+0900

https://www.maglastic.com/different-types-of-permanent-magnet-materials.html

Permanent different kind of magnetic material are also called hard magnetic materials. It is characterized by high anisotropy field, high coercivity, large hysteresis loop area, and large magnetization field required for magnetization to saturation. After removing the external magnetic field, it can still maintain strong magnetism for a long time. The material of permanent magnet has ferrite, rubber magnet, injection magnet, samarium cobalt, neodymium iron boron magnets, and alnico.

1. Ferrite
Ferrite is a non-metallic magnetic material. Ferrite compound can also be called magnetic ceramics. When we take apart the traditional radio, the speaker magnet inside is made of ferrite.

2. Rubber magnet
Rubber magnets are one of the ferrite magnet series. It is a soft, elastic and twistable magnet made of bonded ferrite magnetic powder and synthetic rubber compounded by extrusion molding, calendering molding, injection molding and other processes. Therefore, it can be processed into strips, rolls, sheets, blocks, rings and various complex shapes.

Common Magnetic Materials in Permanent Magnets(2021年10月14日)

maglastic — 2021-10-14T16:07:14+0900

https://www.maglastic.com/common-magnetic-materials-in-permanent-magnets.html

The common magnetic materials used in permanent magnets are AlNiCo, ferrite permanent magnet materials and rare earth permanent magnet materials.

Al-Ni-Co alloy is developed from Al-Ni-Fe alloy. AlNiCo magnets have low coercivity, so any iron should be strictly prohibited from contacting AlNiCo permanent magnet materials during use to avoid local demagnetization of permanent magnets and distortion of the magnetic flux distribution in the magnetic circuit. The advantage of AlNiCo magnets is that the temperature coefficient is small, and the degradation of permanent magnet characteristics due to temperature changes is also small. However, the material is hard and brittle, so its processing is difficult. The main applications of AlNiCo are in electronic ignition systems, watt-hour meters, voltammeters, medical instruments, industrial motors and other fields.

Ferrite permanent magnet material is one of the most widely used permanent magnet materials, and its main component is MoFe2O3. It has the advantages of large coercive force, light weight, abundant source of raw materials, low price, oxidation resistance, corrosion resistance, large anisotropy constant of the magnetic crystal, and its demagnetization curve is approximately a straight line. And its disadvantages are that the remanence is low, the temperature coefficient is large, and it is fragile. The coercivity of ferrite permanent magnet materials is between that of AlNiCo alloy materials and rare earth cobalt permanent magnet materials. Since its low remanence, it is generally material suitable for making permanent magnet to be designed into a flat shape. Ferrite magnetic materials are mainly used in fields such as motors, speakers, toys, and handicrafts.

What is Ferrite Magnet?(2021年05月10日)

maglastic — 2021-04-29T16:49:19+0900

https://www.maglastic.com/what-is-ferrite-magnet.html

ferrite magnet density
ferrite magnet properties

We provide different types of magnetic material, for example bonded magnetic compound to meet the diverse application requirements for our customers, including hard magnetic bonded compounds,soft magnetic bonded compounds and ferromagnetic compounds. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.In addition to bonded magnetic compounds, we can also cooperate with customers to develop customized functional composite materials, such as high ferrite magnet density compounds and metal bonded plastic. We are committed to providing customers with new user experience and different design inspiration.

Many people may have heard of ferrite magnet in their lives, but they don't know what is ferrite magnet. Today, I will give you a detailed introduction to what is ferrite magnet.

The main raw ferrite magnetic materials include SrO or BaO and Fe2O3. Ferrite magnet is a sintered permanent magnet material composed of barium and strontium ferrite. In addition to strong anti-demagnetization performance, this magnetic material also has the advantage of low cost. The magnet of the opposite sex must be magnetized in the direction taken because it is oriented along the manufacturing direction; while the magnet of the same sex can be magnetized in any direction because it has no orientation, although a slightly stronger magnetic induction is often found on the side where the pressure is the smallest. Due to low cost, moderate performance, and good temperature resistance, ferrite magnet have a wide range of applications, from motors and speakers to toys and crafts. Therefore, it is currently the most widely used permanent magnet material.
1. Classification of Ferrite Magnet
According to different production processes, ferrite magnet is divided into sintering and bonding. Among them, sintering is divided into dry pressing type and wet pressing type, and bonding is divided into extrusion molding, compression molding and injection molding. Injection magnets are a type of magnet that has grown rapidly in recent years due to its advantages such as low energy consumption, short molding cycle, suitable for mass production, free magnetic pole orientation, and easy molding of complex devices.

The soft, elastic and twistable magnet made of bonded ferrite powder and synthetic rubber is also called rubber magnet.
2. Performance Characteristics of Ferrite Magnet
Ferrite magnet is characterized by high coercivity and low remanence in performance. Ferrite magnet has high coercivity as well as strong anti-demagnetization ability, and is suitable for working in dynamic magnetic circuit environments with large temperature changes.

The ferrite magnet is hard and brittle and can be cut with emery tools.

The main raw material is oxide, so it is not easy to corrode and generally does not require plating.
Working temperature: -40℃ to +300℃.

We hope that you can better understand what is a ferrite magnet through the above description.

The Difference between Soft and Hard Magnetic Materials(2021年05月09日)

maglastic — 2021-04-29T16:48:47+0900

https://www.maglastic.com/the-difference-between-soft-and-hard-magnetic-materials.html

We provide different types of magnetic material, for example, rare earth magnet material,bonded magnetic compounds to meet the diverse application requirements for our customers, including hard magnetic bonded compound,soft magnetic bonded compound and ferrite compound. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.In addition to bonded magnetic compounds, we can also cooperate with customers to develop customized functional composite materials, such as high-density compounds and metal bonded plastic. We are committed to providing customers with new user experience and different design inspiration.

Soft magnetic materials are magnetic materials with low coercivity and high permeability. They are easy to magnetize and demagnetize. Their main function is to conduct magnetic and electromagnetic energy conversion and transmission. They are widely used in various electric energy conversion equipment. Soft magnetic materials mainly include metal soft magnetic materials, ferrite soft magnetic materials and other soft magnetic materials. The most widely used soft magnetic materials are iron-silicon alloys (silicon steel sheets) and various soft ferrites.

The main difference between soft magnetic material and hard magnetic material. soft magnetic materials and hard magnetic materials is that hard magnetic materials have high anisotropy field, high coercivity, large hysteresis loop area, and large magnetic field required for technical magnetization to saturation. Due to the low coercivity of the soft magnetic material, it is easy to demagnetize after the technical magnetization reaches saturation and the external magnetic field is removed, while the hard magnetic material due to the high coercivity, after the technical magnetization to saturation and the magnetic field is removed, it will remain long-term very strong magnetism, so hard magnetic materials are also called constant magnetic materials.

The Application of Injection Molded Magnets in Automobile and Industrial Fields(2021年05月08日)

maglastic — 2021-04-29T16:48:18+0900

https://www.maglastic.com/the-application-of-injection-molded-magnet-in-automobile-and-industrial-fields.html

We provide different types of magnetic material, for example, magnetically hard and soft materials,bonded magnetic compounds to meet the diverse application requirements for our customers, including hard and soft ferromagnetic materials. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.In addition to bonded magnetic compounds, we can also cooperate with customers to develop customized functional composite materials, such as high-density compounds and metal bonded plastic. We are committed to providing customers with new user experience and different design inspiration.

The mass fraction of ferrite magnetic powder of xerographic injection molded magnetic roller can reach up to 90%. At present, the adhesive for manufacturing injection molded magnetic roller is mainly nylon resin with high temperature resistance and aging resistance. The magnetic powders are mainly strontium ferrite + barium ferrite, aluminum iron boron, neodymium iron boron as well as rare earth and other magnetic powders, among which, ferrite magnetic powders are widely used, and rare earth ferrite and neodymium iron boron magnetic powder have better application prospects.

Micro special motor

High-performance injection molded magnet DC motors, especially three-slot motors, CPU fan motors and brushless motors are widely used, the main reasons are: they have the characteristics of good injection molded, magnetic and chemical stability, high resistivity, which are suitable for high-frequency conversion, also, they have certain elasticity, and not easy to crack and break. What's more, they have good processing performance and can be made into products of different shapes and sizes, which are easy to punch, cut, perforate and wind as well as have high assembly and magnetization efficiency.

The application of injection molded magnets in the automobile field is mainly manifested in automobile parts:

Permanent Magnet Materials Are Used in Motors(2021年05月07日)

maglastic — 2021-04-29T16:47:46+0900

https://www.maglastic.com/permanent-magnet-materials-are-used-in-motors.html

We provide different types of magnetic material, for example, bonded magnetic compounds to meet the diverse application requirements for our customers, including soft magnet and hard magnet bonded compounds and ferromagnetic compounds. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.In addition to bonded magnetic compounds, we can also cooperate with customers to develop customized functional composite materials, such as high-density compounds and metal bonded plastic. We are committed to providing customers with new user experience and different design inspiration.

During the operation of the motor, the centrifugal force received by the permanent magnet is very large. Centrifugal force is tensile stress, and the tensile strength of permanent magnet materials is not high. In this regard, people have made efforts in two aspects:
(1) The compressive stress on the permanent magnet is greater than the tensile stress in the motor structure;
(2) The tensile strength of the injection molded permanent magnet is greater than that of the sintered permanent magnet, and many motors adopt it.

Magnetic Materials in Permanent Magnet Motors(2021年05月06日)

maglastic — 2021-04-29T16:47:15+0900

https://www.maglastic.com/magnetic-materials-in-permanent-magnet-motors.html

We provide different types of magnetic materials, for example, soft and hard magnetic materials,bonded magnetic compounds to meet the diverse application requirements for our customers, the magnetic material used in permanent magnet is hard magnetic bonded compounds and soft magnetic bonded compounds material. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.In addition to bonded magnetic compounds, we can also cooperate with customers to develop customized functional composite materials, such as high-density compounds and metal bonded plastic. We are committed to providing customers with new user experience and different design inspiration.

Permanent magnet motors use permanent magnets to generate the magnetic field of the motor. It does not require an excitation coil or excitation current. It is a good energy-saving motor because of its high efficiency and simple structure. With the rapid development of various motors and the invention of current magnetizers, people have conducted in-depth research on the mechanism, composition and manufacturing technology of magnetic material used in permanent magnet. A variety of permanent magnet materials such as carbon steel, tungsten steel, and cobalt steel have been discovered one after another. The magnetic material used in permanent magnet are neodymium iron boron, samarium cobalt and ferrite.

Samarium cobalt permanent magnet material is a kind of rare earth permanent magnet, which is made of rare earth elements samarium, cobalt and other elements after proportioning. It has a high magnetic energy product and a very low temperature coefficient, with a maximum operating temperature of 350°C. Compared with neodymium iron boron, samarium cobalt permanent magnets are more suitable for working in high temperature environments. It can still maintain good temperature stability and chemical stability above 180°C. At the same time, it has strong corrosion and oxidation resistance. Therefore, it is widely used in aerospace, defense and military industry, microwave devices, communications, medical equipment, various magnetic transmission devices, sensors, magnetic processors, motors, magnetic cranes and so on.

Magnetic Materials and Their Characteristics(2021年05月05日)

maglastic — 2021-04-29T16:46:42+0900

https://www.maglastic.com/magnetic-materials-and-their-characteristics.html

We provide different types of magnetic material, for example bonded magnetic compound to meet the diverse application requirements for our customers, including hard magnetic bonded compounds,soft magnetic bonded compounds and ferromagnetic compounds. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.In addition to bonded magnetic compounds, we can also cooperate with customers to develop customized functional composite materials, such as high-density compounds and metal bonded plastic. We are committed to providing customers with new user experience and different design inspiration.

Now in our lives, different magnetic materials are used in many places. So today we come to understand its characteristics.

magnetic materials and their properties:

1. Magnetic materials will produce strong or weak magnetic fields under the action of external magnetic fields. Its magnetic field strength is marked out in a table, showing a regular curve. And although this kind of magnetic field is not substantial, if you place a piece of magnetic material on the ground and sprinkle some magnetic powder around it, its magnetic field will be represented by the magnetic powder.

3. The resistivity is relatively high. The resistivity of magnetic materials is higher than that of ordinary metals and can be used in fire protection systems in circuits.

Home Appliances Bonded Magnetic Compound(2021年05月04日)

maglastic — 2021-04-29T16:46:14+0900

https://www.maglastic.com/home-appliances-bonded-magnetic-compound.html

magnetic materials and their properties
We provide different types of magnetic material, for example, rare earth magnet material,bonded magnetic compounds to meet the diverse application requirements for our customers, including hard magnetic bonded compound,soft magnetic bonded compound and ferrite compound. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.In addition to bonded magnetic compounds, we can also cooperate with customers to develop customized functional composite materials, such as high-density compounds and metal bonded plastic. We are committed to providing customers with new user experience and different design inspiration.

HomeApplicationsHome Appliances
Aiming at the demand of energy-saving and intelligent home appliances, we are committed to improving solutions about man-machine interaction, noise reduction, and energy saving. Our products can be used in brushless DC motor, sensors.

Home-Appliances

As a typical application case of a bonded magnetic compound, a magnetic roller for the printer is the main component that carries toner in the printer. Comparing to the traditional sintered magnetic material, the magnetic roller made of magnetic compound can realize with multiple radial poles, like 4poles, 5poles, 6poles. Furthermore, the length to diameter ratio of the magnetic roller can reach to more than 30, which can not be realized in the sintered magnetic material. The magnetic roller made of the magnetic compound through injection molding or extrusion greatly improve production efficiency, and have the advantages of good dimensional consistency, uniform magnetic field distribution, and excellent mechanical properties. It achieves high-quality development effects for printers.

High Performance NdFeB: the Strongest Magnetic Permanent Magnet Material Up to Now(2021年05月03日)

maglastic — 2021-04-29T16:45:41+0900

https://www.maglastic.com/high-performance-ndfeb-the-strongest-magnetic-permanent-magnet-material-up-to-now.html

strongest magnetic material

The magnetism of soft magnets can be magnetized by external action, but the magnetism is also easy to disappear.

Compared with ferrite, NdFeB has a higher magnetic energy product, and at the same time its stability is stronger and its magnetic force is more controllable.

Different Types of Permanent Magnet Materials(2021年05月02日)

maglastic — 2021-04-29T16:45:08+0900

https://www.maglastic.com/different-types-of-permanent-magnet-materials.html

We provide different kind of magnetic material, for example, bonded magnetic compounds to meet the diverse application requirements for our customers, the material of permanent magnet has includ soft magnet and hard magnet bonded compounds and ferromagnetic compounds. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.In addition to bonded magnetic compounds, we can also cooperate with customers to develop customized functional composite materials, such as high-density compounds and metal bonded plastic. We are committed to providing customers with new user experience and different design inspiration.

Common Magnetic Materials in Permanent Magnets(2021年05月01日)

maglastic — 2021-04-29T16:44:33+0900

https://www.maglastic.com/common-magnetic-materials-in-permanent-magnets.html

We provide different types of magnetic materials, for example, soft and hard magnetic materials,bonded magnetic compounds to meet the diverse application requirements for our customers, including hard magnetic bonded compounds and soft magnetic bonded compounds. If you are looking for a lightweight, reliable, mass-produced, and customized product, bonded magnetic compounds are an ideal alternative.In addition to bonded magnetic compounds, we can also cooperate with customers to develop customized functional composite materials, such as high-density compounds and metal bonded plastic. We are committed to providing customers with new user experience and different design inspiration.

The common magnetic materials used in permanent magnets are AlNiCo, ferrite permanent magnet materials and rare earth permanent magnet materials.

Al-Ni-Co alloy is developed from Al-Ni-Fe alloy. AlNiCo magnets have low coercivity, so any iron should be strictly prohibited from contacting AlNiCo permanent magnet materials during use to avoid local demagnetization of permanent magnets and distortion of the magnetic flux distribution in the magnetic circuit. The advantage of AlNiCo magnets is that the temperature coefficient is small, and the degradation of permanent magnet characteristics due to temperature changes is also small. However, the material is hard and brittle, so its processing is difficult. The main applications of AlNiCo are in electronic ignition systems, watt-hour meters, voltammeters, medical instruments, industrial motors and other fields.

Ferrite permanent magnet material is one of the most widely used material suitable for making permanent magnet, and its main component is MoFe2O3. It has the advantages of large coercive force, light weight, abundant source of raw materials, low price, oxidation resistance, corrosion resistance, large anisotropy constant of the magnetic crystal, and its demagnetization curve is approximately a straight line. And its disadvantages are that the remanence is low, the temperature coefficient is large, and it is fragile. The coercivity of ferrite permanent magnet materials is between that of AlNiCo alloy materials and rare earth cobalt permanent magnet materials. Since its low remanence, it is generally suitable to be designed into a flat shape. Ferrite magnetic materials are mainly used in fields such as motors, speakers, toys, and handicrafts.