Parallel Twin Screw Barrel Bimetallic Screw Barrel

Short Description:

The inner cavity of the parallel twin-screw barrel is designed with a double-hole through-hole structure, ensuring that the two mutually meshing screws rotate within a sealed space. As the core component of the extrusion system, its structural design directly determines the key process effects such as material transportation, mixing, melting, and evaporation.

Product Detail

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Product Description

The inner cavity of the parallel twin-screw barrel is designed with a double-hole through-hole structure, ensuring that the two mutually meshing screws rotate synchronously or asynchronously within a sealed space. As the core component of the extrusion system, its structural design directly determines the key process effects such as material transportation, mixing, melting, and evaporation.

Technical Specification

Material：38GrMoAlA,42GrMo

Hardness after hardening &tempering：HB280-320

Hardness &Tempering time：72 hours

Nitrided hardness：HV850-1000

Nitrided time：120hours

Depth of nitriding case：0.50-0.80mm

Nitrided Brittleness：less than grade 2

Surface Roughness：Ra0.4

Surface hardness of chromium-plating after Nitriding：>HV900

Depth of chromium -plating：0.025-0.10mm

Alloy Hardness：HRC50-65

Alloy Depth：0.8-2.0mm

Application

Parallel twin-screw is mainly used for PE, PP, ABS, rubber, various high glass fiber, mineral fiber and PPA, PPS, PA6T, LCP, VO fire protection, ferrous power, magnetic powder, etc.

 

 

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