Main technical indicators:
Diameter: Φ 35/35~Φ 250/250 (can be customized according to customer requirements)
Length to diameter ratio: L/D=16-35 (can be customized according to customer requirements)
Depth of nitride layer: 0.5-0.8mm
Hardness of nitride layer:>950Hv
Nitriding brittleness:<Level 2
Screw material: 38CrMoAlA, dual alloy spray welding can be used on the surface of the screw edge
Barrel material: 38CrMoAlA, the material inlet can be made of imported alloy steel
The compression ratio of the screw can be designed according to different raw materials or user requirements.