Twin Screw and Barrel,PVC, UPVC pipe

Those twin screw barrels are made of high-quality steel and are extra nitrified until a depth from 0.7 to 0.9 mm. The surface's - details see: https://www.machineto.com/twin-screw-and-barrel-pvc-upvc-pipe-10334992

Place of Origin:ZHE,Zhejiang, China (Mainland) China (Mainland)	Brand Name:shenglong screw barrel,Shenglong screw barrel	Model Number:parallel screw barrel	screw barrel:screw barrel
parallel screw barrel:parallel screw barrel

contact supplier for Twin Screw and Barrel,PVC, UPVC pipe

Parallel twin screw barrel
We are a professional manufacturer of screw and barrel that has been in this line for 10 years, we can supply and design all kinds of screw&barrel according to your requirments.

The parallel twin screw and barrel for extruder in many specifications.
The parallel twin screw's Abrasion resistant and corrosion resistant.

1. The parallel twin screw's material:
1): 38CrMoALA (JIS SACM645)
This kind of material is applicable to double alloy and common molding screw
2): 9Gr18MoV
3): 42CrMo

2. Technics:
1): Heat-treatment
2): Nitriding-treatment
3): Spray bimetallic-alloy coating.

3. Technical parameter:
1): Depth of Nitration Layer: 0.5-0.8mm
2): Hardness of Nitration: 900-1000HV
3): Fragility of Nitration: Less than grade 1
4): Roughness of the surface: Ra0.4
5): Straightness of the screw: 0.015mm
6): Surface hardness of Nitrated Cr coating Layer: >=950Hv
7): The thickness of Chrome-plating layer: 0.025-0.085mm
8): Depth of alloy Layer: >2m.