Products
Parameters：
Brief introduction：
Screw and Barrel For Rubber Machine
Basic parameters：
Screw out diameter d：15mm≤d≤300mm
Screw length L：L≤10000mm
Nitriding hardness：HV≥900
After grinding 0.20mm, HRC ≥760 (38CrMoALA);
Nitrided brittleness：≤2 level
Surface finish Ra：Ra0.4µm
Straightness：0.015mm
Thickness of bimetallic layer：1.5-2.0mm
Hardness of bimetallic layer：HRC56-60
Thickness of chrome plating layer: 0.03-0.05mm
Scope of application：
Tires, shoe materials, wires and cables, pipes, seals, etc.
Composition and process：
