Single screw and barrel for plastic extruder
Specification:
Diameter: ?15- ?300
L/D ratio:15-50
Material:
High quality alloy steel
1)38CrMoAlA(JIS SACM645)
2) 42CrMo(AISI 4140)
3)Cr12MoV(JIS SKD-11)
Technics:
1) Heat treatment
2) Nitriding treatment
3) Hard-chrome electroplating
4) 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:3mm
Bimetallic hardness:HRC50-65
We always adopt high-quality materials, provide best quality, perfect service,
prompt delivery and very competitive price for you.
prompt delivery and very competitive price for you.
Hope we can cooperate with you. Thank you!