Injection screw for plastic
Mould clamping force: 100KN-35000KN
Shot weight:30-30000G
Screw diameter: ?20mm-?220mm
Material:
High quality alloy steel
1)38CrMoAlA(JIS SACM645)
2) 42CrMo(AISI 4140)
3)Cr12MoV(JIS SKD-11)
Technics:
Heat treatment
Nitriding treatment
Hard-chrome electroplating
Bimetallic alloy welding
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:3-5mm