Single screw and barrel for blow molding machine

1. Materials: 38crmoALA(this kind of material is applicable to double alloy and
common molding screw),    42CrMo, SKD61(this material is abrasion resistance),  
SACM425,    stainless steel(this kind of material is corrosion resistance, and
applicable to PC,PVC, transparent material), and so on.

2. Treatment; quenching, nitriding,blackening, electroplated hard-chrome
(according to clients' requirement).

If you have any questions or want more details of our products, please contact
with us.

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