Conical twin screw barrel for UPVC plastic pipe machine

Conical twin screw featurs:
1:Conical twin screw cores water internal circulation series
2:Conical twin screw cores oil cold outer cycle

Technical Data:
Depth of nitration case:0.5-0.8mm
Hardness of nitration:HV950-1020
Roughness of the surface:Ra 0.4um
Screw straightness: 0.015mm/m
thickness of double alloys: 2-3mm
Hardness of double alloys:HRC58-62
Suitable plastic material: PP,PE,ABS,AS,PS etc.
Material: 38CrMoALA

Advantage:
1) With high wear resistance and anti-corrosion
2) Through processing ,it can be prolong use life for screw and barrel
3) Cold and heat spraying for hard metal process
4) High-frequency quenching technology
5) Advanced nitriding technology
6) Processing and manufacturing process for Bimetallic