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Our country has had glass bottle containers since ancient times. In the past, academic circles believed that glassware was very rare in ancient times, so it should only be owned and used by a few ruling classes. However, recent research suggests that ancient glassware is not difficult to produce and manufacture, but it is not easy to preserve, so it is rare in later generations. Glass bottle is a traditional beverage packaging container in my country, and glass is also a kind of packaging material with a long history. With many packaging materials pouring into the market, glass bottle containers still occupy an important position in beverage packaging, which is inseparable from its packaging characteristics that other packaging materials cannot replace.

The main characteristics of the glass bottle container are: non-toxic, tasteless; transparent, beautiful, good p property, airtight, abundant and universal raw materials, low price, and can be used in multiple cycles. And it has the advantages of heat resistance, pressure resistance, and cleaning resistance. It can be sterilized at high temperature and can be stored at low temperature. It is precisely because of its many advantages that it has become the preferred packaging material for many beverages such as beer, fruit tea, and jujube juice.

71% of the world's beer is bottled in glass beer bottles, and China is also the country with the highest proportion of glass beer bottles in the world, accounting for 55% of the world's glass beer bottles, with more than 50 billion glass beer bottles every year. Mainstream packaging has gone through a hundred years of vicissitudes of beer packaging. It is still favored by the beer industry for its stable material structure, pollution-free, and low price. "When a company wants beautiful appearance of packaging and cool touch, the glass bottle container is the preferred packaging choice. Generally speaking, the glass bottle container is still the usual packaging used by beer companies." It has made a huge contribution to beer packaging and most people love it.

The glass bottle container production process mainly includes:

① Pre-processing of raw materials. Crush the bulk raw materials (quartz sand, soda ash, limestone, feldspar, etc.), dry the wet raw materials, and remove iron from the iron-containing raw materials to ensure the quality of the glass.

② Preparation of batch materials.

③ Melting. The glass batch material is heated at a high temperature (1550~1600 degrees) in a pool furnace or a pool furnace to form a uniform, bubble-free liquid glass that meets the molding requirements.

④ Forming. Put the liquid glass into the mold to make glass products of the required shape, such as flat plates, various utensils, etc.

⑤ Heat treatment. Through annealing, quenching and other processes, the internal stress, phase separation or crystallization of the glass is eliminated or produced, and the structural state of the glass is changed.

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