Bimetallic screw and barrel
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 Plastics2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc3)PA + GF(Glass Fiber)4)Flame-resistant Reinforced Plastics5)Modified Engineering Plastics6)All kinds of Mixed Recycled Material(in Scrap or Granule),etc
