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Home / Product / Conical twin screw barrel / Conical twin screw barrel for extrusion machinery
Conical twin screw barrel for extrusion machinery

Conical twin screw barrel for extrusion machinery

Location:China
Business Type:Manufacturer, Exporter
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  • Treatment Process
    - Quenched and tempered
    - Nitriding
    - Hard chrome plating
    - Spray bimetallic layer
    - High frequency quenching
    - Centrifugal casting bimetallic inside
    - Nature hardening

     


    Specifications: Φ20mm- Φ300mm
    Aspect ratio: L / D = 15-65
    Materials and Technology:
    1. 38CrMoALA nitriding treatment
    Nitriding depth: 0.5-0.8mm, nitriding hardness: HV≥920
    2. 42CrMo Plating: induction hardening + plating / double metal plating PTA +
    Chrome hardness: ≥HV800, thickness 0.03-0.05mm, roughness Ra0.2um
    3. SKD61 quenching, vacuum quenching overall hardening treatment
    Hardness index: HRC> 55-58, straightness 0.015mm / m, roughness Ra0.4um
    4. 9Cr18Mov vacuum hardening, CNC circular grinding
    Hardness index: HRC> 50-55, straightness 0.015mm / m, roughness Ra0.4um
    5. hard chromium plating Specifications:
    Chrome plating thickness: 0.05-0.10mm, chrome layer hardness: HV≥960

Zhoushan Jingnai Alloy Precision Casting Co.,Ltd.

Zhoushan Jingnai Alloy Precision Casting Co.,Ltd. is famous OEM/ODM Conical twin screw barrel for extrusion machinery Suppliers in China. In the incentive market competition, the essence of resistance by the good faith, service, in the superior quality, and the real price under the premise of the company's technical staff is also time for customers to solve various questions and problems, if you need, we are willing to take the good faith attitude, the cheaper price, high quality common development with you,cost reduction, quality assurance, reputation, timely delivery, this is our company's business objectives

Zhoushan Jingnai Alloy Precision Casting Co.,Ltd.

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