Screws and barrels for Extruder Machine
According to the customer demands to make the goods.
Material: Alloy-Steel of High-Quality
1) 38CrMoAlA(JIS SACM645)
2) 42CrMo(AISI 4140)
3) Cr12MOV(JIS SKD-11)
4) 4Cr5MoSiV1(JIS SKD-61)
Specifications:
Size: Screw Diameter: 10mm- 400mm
Length: <=4000mm
Barrel ID: 10mm- 400mm
Technology: Nitriding treatment, alloy coating spraying, heat-treatment
Appliance: PVC, PP, PE, PA, PC, ABS, AS etc
Specification of dimension:
For screw: Dia. 15-300 mm Length 300-9000 mm L/D ratio: 15-50
Fro barrel: Dia. 30-500 mm Length 300-8000 mm
Technics:
Heat-treatment:
Nitriding treatment
Electroplated hard-chrome
High-frequency quenching
Spray coating Bimetallic-alloy
Technical parameters:
Nitrition layer hardness: 900-1000HV
Nitrition fragility: Less than grade one
Surface roughness: Ra0.4um
Nitrition depth: 0.5-0.8mm
Cr-plating layer depth: 0.03-0.08mm
Cr-plating layer hardness: 850HV
Bimetallic layer hardness: 55HRC-68HRC
Bimetallic layer depth: 3-4mm
Types:
Screw can be mated with different heads of screw, barrel
Can be mated with different sprinkler heads.
