Zhejiang Dongbin Rubber Machinery Screw Co., Ltd. [China]

1)high quality 2)Quality 38CrMoALA 3)Accessories for rubber machine

Technical Index

Technical Specification

Hardness After Hardending&Tempering : HB240~280

Nitrided Hardness : HV900~950

Nitrided Case Depth : 0.55~0.7mm

Nitrided Brittleness :Less Than Grade 1

Surface Chromium-Plating’s Hardness After  Nitriding≥900HB

Chromium –plating Depth :0.05~0.10mm

Material&Processes

Quality 38CrMoALA

GH3#Steel

Quality Powder Metallurgy Raw Materials

Cold/Thermal Spray Hard Metal Process

Advanced nitriding Process

Corrosion & Abrasion Resistance Bimetal Spraying Process

feeding service for rubber extruder machine