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Rubber Screw And Barrel
Product description
Rubber screw and barrel Material: Alloy-steel of high-quality 38 CrMoAlA(JIS SACM645) Heat-treatment Nitriding treatment Electroplate hard-chrome High-frequency quenching Spraying corrosion wear-resisting dual metal layers Vacuum quenching
Steel Material |
DIN 41CrA1Mo7 / AST M4140 / GB 38CrMoAlA |
Deepness of Nitriding Layer |
0.5 mm -0.8 mm |
Hardness of Nitriding |
HV900 - HV1,020 |
Nitriding Brittleness |
≤Grade 2 |
Cold feed pinned screw and barrel of rubber machine |
Diameter:Φ60mm~Φ250mm L/D:12-18 |
Cold feed screw and barrel of rubber machine |
Diameter:Φ45mm~Φ300mm L/D:8-20 |
Hot feed screw and barrel of rubber machine |
Diameter:Φ45mm~Φ250mm L/D:4-6 |
Screw straight tolerance |
0.015 mm/m |
Surface roughness |
Ra 0.4μm |
Type
For good plasticizing effect,we have different design of screw barrel to meet customer's demand. Gradual type,mutant type,wave type,barrier type,double screen type, shunt type,separation type,exhaust type, pin type, mixed type, double-head type,three-head type,multi head type etc.
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