Screw Barrel for Rubber Parts Process Machinery

• After-sales Service: 24hours Within 7days
• Warranty: 1year
• Condition: New
• Customized: Customized
• Automatic Grade: Semiautomatic
• Structure: Horizontal
• Model NO.: Screw Out-diameter 20-300mm
• Dongxiangsrubberscrew: 38crmoala
• Vulcanizer: Hv>=850
• Extrusion: Nitride
• Transport Package: Woodbox
• Specification: 150*150*4310mm
• Trademark: DONGXIANG
• Origin: Zhoushan
• HS Code: 84779000
• Production Capacity: 2000

Product Description

Standard
Diameter:φ20-φ300mm
Ratio of length to diameter:L/D=15-55

Materials
38CrmoAIA
Duplex stainless Steels
GH3#
Power Metallurgy Raw Material
Cold/Thermal Spray Hard Metal Process
Advanced Nitriding Process
Corrosion&Abrasion Resistance Bimetal Spraying Process
 
Technical Index

Product	Screw&Barrel
Tempering hardness	HB240-280
Hardness of nitrogen treatment	HV950-1000
Depth of nitrogen layer	0.55-0.70
Nitrided brittleness	Less than grade 1
Surface roughness	Ra 0.4
Screw straightness	0.015mm
Hardness after nitriding	≥900HB
Chromium-plating depth	0.05-0.10mm
Alloy hardness	HRC55-62
Alloy Depth	1.5-2.0mm