Dropper Pipe Screw Barrel

Pipe screw barrel is specifically for hollow wall winding pipe, dropper pipe, PE drain pipe, PE spiral pipe, dual wall ripple pipe, PP straw pipe PPR pipe, PP silencing pipe, PVC pipe, PC pipe, and so on.

Raw material is PE, PP, PVC, PC, PA, PS and so on.

Material: 38CrMoAlA, SKD11, SKD61, HPT2B, high quality alloy steel, etc
Technology: Nitriding treatment, Alloy coating sparying, heat-treatment, etc
Appliance: PMMA Transparent optical lenses, PMMA Plastic with 15~50% and Engineering Resin, etc

Heat-treatment
Nitriding treatment
Electroplated hard-chrome finish
High-frequency quenching
Spray coating bimetallic-alloy
Vacuum quenching

Technical index:
Depth of Nitrated Layer: 0.5-0.8mm
Hardness of nitration: 900-1020Hv
Fragility of nitration: Less than grade 1
Surface roughness: Ra 0.4um
Hardness of Cr-coating Layer: ≥ 950Hv
Thickness of Cr-coated Layer: 0.03-0.08mm
Hardness of Bimetallic Layer: HRC55-72
Depth of Bimetallic Layer: >2mm
Used for granulation, PMMA Transparent optical lenses, PMMA Plastic with 15~50% and Engineering Resin, etc