Zhoushan Zhongyang Screw Manufacturing Co., Ltd.
Products
Contact Us
  • Contact Person : Ms. Wang Mia
  • Company Name : Zhoushan Zhongyang Screw Manufacturing Co., Ltd.
  • Tel : 86-574-88114868
  • Fax : 86-574-88114878
  • Address : Zhejiang,Ningbo,Room 408,Unit 10,Jinshuiwan Building,Changfeng,Yinzhou District
  • Country/Region : China
  • Zip : 315000

The conical twin screw/barrel

The conical  twin screw/barrel
Product Detailed

Detailed Product Description


The conical  twin barrel for extruder in many specifications.

The conical twin barrel Abrasion resistant and corrosion resistant

Material:1)High quality 38CrMoAlA

          2)9Cr18MoV

Technics:1)Heat-treatment

              2)Nitriding treatment

              3)Bimetallic-alloy coating spraying

Technical parameter

Nitriding depth:0.50-0.80mm

Nitriding hardness:900-1000HV

Nitriding brittleness:Less tha grade 1

Surface roughness:Ra0.4

Linearity of the screw:0.015mm

Hardness of the chromium plating after nitriding :more than 950HV

Chrome plating thickness:0.025-0.085



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