Assemble parts of screw barrel

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Assemble parts of screw -barrel

The conical twin screws and barrel can be designed different structure according to the different product and market requests.

 Specifications of conical twin-screw and barrel:

Technical standard:

1.Material: *8C rMoALA

2.Hardness of modulator: HB******0

3.Hardness of nitrification:*******0HV

4.Depth of nitrification layer: 0.**0.7mm

Double-alloy technical standard:

Double-alloy level:

1.Level A - containing tungsten of *0%

2.Level B - containing tungsten of *5%

3.Level C - containing tungsten of 9.5%

4.Hardness of alloy: HRC****5o

Applied scope of plastic: applied for PVC and WPC material,  has a high output and stable performance.

1.Components of alloy powder: Ni + Co + Cr + W + Si + Fe + B + C

2.Depth of alloy layer: 1.2 mm*2.0 mm

3.Hardness of alloy: HRC>*5°

 Two stage type of barrel (material of powder outlet is Cr*2MoMV, vacuum quenching)
and screw (powder output is treated by alloy), the using lifespan is long as twice
as common ones.The twin screws and barrel can be equipped in differents