film blowing machine screw and barrel - [ Sell Product ]

Place of Origin : Zhoushan,China
Post Date : 26-10-2012
Expiry Date : 29-11-2014

Trade Description

Screw Diameter:D15-D300
L/D Ratio:15-46
Product Classification:
Aiming At Different Plastic Products The Screw Can Be Chosen From:general Type ,pin Type,barrier Type,separation Type,and Vented Type Etc.

Base Materials:
1.38CrMoAIA(JIS SACM645)
2.42 CrMo (AISI 4140)
3.4Cr5MoSiV1(JIS SKD-61)
4.9Cr18MoV
5.HPT

Bimetallic Alloy Materials:
1.Fe-based Alloy
2.Ni-based Alloy/Deloro Alloy
3.Co-based Alloy
4.NiCo-based Alloy
5.Tungsten Carbide/Wolfram Carbide

Technics:
Heat Treatment
High-frequency Quenching
Nitriding Treatment
Hard-chrome Electroplating
Bimetallic Alloy Welding
Bimetallic Alloy Centrifugal Casting

Technical Parameter:
Nitrided Layer Depth: 0.5-0.8mm
Nitrided Hardness: 900-1000HV
Nitrided Brittleness: Less Than Grade 1
Surface Roughness: Ra0.4
Linearity Of Screw: 0.015mm
Hard-chrome Plating Hardness After Nitriding: >950HV
Chrome-plating Layer Depth: 0.025-0.085mm
Bimetallic Layer Depth: 3mm