Tel: +86-580-8050975, +86-580-8058618
Fax: +86-580-8050162
E-mail: screw@jmjxc.com
Adds: No.18, Dafeng Road, Xihou Industrial Park, Zhoushan, Zhejiang, China
Extruder screw barrel
Diameter: φ15-φ500
L/D ratio:15-55
Technical Parameter:
Hardness After Hardening & Tempering:HB280-320
Nitrided hardness: HV850-1000
Nitrided layer depth:0.50-0.80mm
Nitrided brittleness: ≤ Grade Ⅱ
Surface roughness: Ra 0.4μm
Linearity of screw: 0.015mm
Bimetallic layer depth: ≥2mm
Bimetallic hardness: HRC60-72
Hard-chrome plating hardness after nitriding: ≥900HV
Chrome-plating layer depth: 0.025-0.10mm
Product classification:
According to different ingredents and products the screw can be chosen: general type, pin type, barrier type, separation type, and gas-exhausting/vented type, etc.
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