
screw diameter:15mm-250mm
screw length:300mm-8000mm
barrel outer diameter:40mm-400mm
L/D:10-46
Bimetal barrel is a kind of barrels which have be casted a layer of 2-3 mm corrosion & abrasion resistant alloy on the inner wall.
Bimetallic Alloy Materials:
38CrMoAlA
40Cr
Stainless steel
SKD61
Ferrous alloy
Nickel alloy
Tungsten alloy
Double-alloy level | Level A - containing Tungsten of 40% |
Level B - containing tungsten of 25% | |
Level C - containing tungsten of 9.5% |
Technical parameter | Depth of nitration | 0.5-0.8mm |
Hardness of nitration | 950-1020HV | |
Straight of screw | 0.015MM | |
Fragility of nitration | Less than grade 1 | |
Roughness of surface | Ra 0.4um | |
Depth of alloy layer | 2-3mm | |
Hardness of alloy | HRC58-62 | |
Hardness after hardening and tempering | HB260-290 | |
Hard chrome plating thickness | 0.03-0.08mm | |
Hardness of hard chrome plating | ≥950HV | |
Material Application | 1)General Plastics | |
2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc | ||
3)PA + GF(Glass Fiber) | ||
4)Flame-resistant Reinforced Plastics | ||
5)Modified Engineering Plastics | ||
6)All kinds of Mixed Recycled Material(in Scrap or Granule),etc |
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