1. Product introduction
● ordinary nitriding
● internal hole centrifugal casting alloy (ABC 3 grade)
● full hard inner set series.
2. Product Specifications
●Cylinder diameter: 40mm-400mm
● Aspect ratio: L / D = 10 ~ 46
3. technical indicators
● Surface hardness：HV≥290
● Nitriding hardness: HV850-1000
● Nitriding depth：0.45-0.7mm
● Nitriding brittleness：≤ a level
● Screw straightness: 0.015mm
● After nitriding the surface chrome hardness：≥900HV
● Chromium thickness：0.05-0.1mm
● Double alloy hardness: HRC60-70
● Alloy depth：0.8-2.0mm
4. The scope of application
●Suitable for PVC,PP PE,PO,PPU,PU,OPP,PC,ABS,PA,PET,PPR,EVA,PPS,PB and other plastic extrusion molding, EPE EPE foam, all kinds of waste plastic recycling pull tablets.
Zhoushan First Plasticmachinery Co,.Ltd is a famous China Extrude screw barrel Manufacturers and Extrude screw barrel suppliers,The Company covers an area of more than 40,000 square meters and owns advanced process lines introduced from Germany, Japan and other countries, which provides the clients with excellent products and service,First machinery has concentrated on technical innovation for years and our Extrude screw barrel passed the ISO9001:2000 Quality System Certification
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