single screw for extruder,film blowing

Applicationt: 

auto

Production Description:

Single screw and barrel are used in extrusion process. Product with carefully choosing the design (barrier, maddock, spiral).

Single Screw and Barrel Ranges: 

 Screw Diameter:

 15mm -300mm

 Screw Length:

 L/D ratio 15 - 46

 

Single Screw and Barrel Technical Specifications:

 Steel Material

 DIN 41CrA1Mo7 / AST M4140 / GB 38CrMoAlA

 Heat Treatment

 Nitride depth: 0.5 mm - 0.7 mm

Surface hardness: 

 HV900 - HV1,000

Chromate plating: 

 Thickness 0.05 mm - 0.10 mm, hardness HV950

Special treatment: 

 Carbide coating on screw flight and bimetallic barrel

 Screw straight tolerance

 0.015 mm/m

 Surface roughness

 Ra 0.4μm

single screw
Material: 38CrMoAl A Nitriding treatment
Surface hardness: Hv more than 900
Nitriding depth: 0.5-0.8mm