parallel twin screw extruder barrel

Product Description

parallel twin screw extruder barrel  

Hardness of nitration: *******0HV

 Fragility of nitration: Less than grade 1

 Roughness of the surface:Ra 0.4um

 Linearity of the screw:0.**5mm

 Chromium-plating layer thickness:0.***0.*8mm

 Hardness of double alloys: HRC****2

 Depth of double alloys:>2 mm

 The surface hard chromium plating hardness after nitrogenation:>=**0HV

 Guarantee: Common Nitrided: approx 2 years     Bimetallic : much longer lifetime

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