Screw Barrel for Plastic Processing Machinery

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Screw Barrel for Plastic Processing Machinery
Posting date : Apr 07, 2011
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39-
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Screw Barrel for Extruder, Injection Molding Machine 1. Material: 38CrMoAlA (Nitriding steel), SKD11, SKD61, high quality alloy steel, etc 2. Technology: nitriding treatment, alloy coating spraying, heat-treatment applied 3. Application: PE, PVC, PP, etc. 4. Technical Index: 1) Depth of nitrided layer: 0.5-0.8mm 2) Hardness of nitration: 900-1020Hv 3) Fragility of nitration: Less than Grade 1 4) Surface roughness: Ra. 0.4um 5) Hardness of Cr-coating layer :> =950Hv 6) Thickness of Cr-coating layer: 0.03-0.08mm 7) Hardness of Bimetallic layer: HRC55-72 8) Depth of Bimetallic layer :> 2mm 5. Guarantee: Common Nitrided: 1-2years Bimetallic: much long time…

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