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Quick Details

Place of Origin: China (Mainland)
Brand Name: XH
Model Number: XH-1008
Hardness after Hardening&Termpering: HB240-280
Surface Hardness: 58-62 HRC
Nitrided layer depth: 0.5-0.8mm
Surface Roughness: Ra0.4
Screw Straightness: 0.015mm
Chromium-Plating Layer Thickness: 0.05-0.10 mm

Specifications

PMMA (polymethyl methacrylate) injection screw barrels
  • Specification
Screw diameter: ?12-300MM L/D:15-55
Barrel diameter:  ?25-500MM      Length:300-1000MM
  • Material
38CrMoAlA(JIS SACM645)
Cr12MOV(JIS SKD-11) 
4Cr5MoSiV1(JIS SKD-61) 
42CrMo(AISI 4140)
9Cr18MoV
Stainless steel,etc.
  • Parameter
Nitrided layer depth:0.50-0.80mm
Nitrided hardness: 900-1100HV
Nitrided brittleness: Less than 2 level
Surface roughness: Ra 0.4
Linearity of screw: 0.015mm
  • Feature
PMMA has no special requirements of design for screw barrel. Because the melt viscosity is big, need deep screw slots and large diameter shoot nozzle holes to plasticizing in low temperature.