Bimetallic barrel is placed in the barrel wall 2-3mm wear-resistant corrosion-resistant, high temperature alloy, the effective life of greatly improved than the ordinary nitriding barrel. For general resin and high-functional resin, high proportion of glass fiber, carbon fiber and various fire-retardant additives, Bakelite and PPA, PPO, PPS, LCP magnetic powder, PC and other special engineering plastics.
1 Specification
Φ65/2~Φ150/2 Screw diameter：15~300mm
The maximum length：8000mm
Barrel diameter：15~300m
The maximum length：4000mm
Screw compression ratio can be based on different products and different formulations to design
2 Substrate material
1) 38CrMoAlA(JIS SACM645)
2) Nickel-based alloy + tungsten carbide
3 Treatment Process
Quenched and tempered, qualitative, nitriding treatment.
4 Technical Parameters
Nitriding depth: 0.50mm-0.80mm
Nitriding hardness: 850~1000HRC
Surface roughness: Ra 0.4
Screw straightness: 0.015mm
