年表作成・共有サービス - pastport

Extruder Barrel and Screw Specification : Ø15mm~Ø500mm 
Draw Ratio： L/D=7~55 
 

Technical Parameter

Quenching and Tempering Hardness：HB280-320
Screw Straightness：0.015mm

Nitriding Hardness：HV850-1000
Nitrided Chromium Coating Surface Hardness≥900HV

Nitriding Depth ：0.45~0.7mm
Chromium Coating Thickness ：0.025~0.10mm

Nitridng Brittleness :2 Level
Duplex Alloy Hardness：HRC50-65

Surface Roughness：≤Ra0.4
Duplex Alloy Depth：0.8~2.0mm

Materials and Technologies

Quality 38CrMoAIA (41CrAIMo7)
SKD61(H13)

Quality Duplex Stainless Steel
Gr12MoV

42CrMo
Quality Powder Metallurgy Materials

40Cr
Hard Metal Cold/Thermal Spraying Technology

Zinc 3# Steel
Advanced Nitriding Technology

Anti-corrosion and Wear-resisting Duplex Metal Spraying Technology
 

 
https://www.gmscrews.com/single-screw-extruder-screw-and-barrel/