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China, Chinese Rubber Screw Barrel Rubber Screw Cylinder1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Rubber MachineryRubber Machine PartsScrew for Rubber MachineryRubber Screw
Zhejiang Zhongyang Screw Manufacturing Co., Ltd.
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Product Description Rubber Machine Screw barrel, cold/hot feeding rubber screw, rubber extrusion screw barrel, plastic machinery screw barrel, plastic machinery componentsSpecification:Diameter of pin screw and barrel: Φ 75mm-Φ 200mmDiameter of cold feed or hot feed screw and barrel: Φ 30mm-Φ 300 mmL/D ratio: 12-18Technical InformationBase Materials:1)38CrMoAlA(JIS SACM645)2)42CrMo(AISI 4140)3)4Cr5MoSi V1 (JIS SKD-61)4)9Cr18MOV5)HPTBimetallic alloy materials:1)Fe-based alloy2)Ni-based alloy/Deloro alloy3)Co-based alloy4)NiCo-based alloy5)Tungsten carbide/Wolfram carbideTechnics:Heat treatmentHigh-frequency quenchingNitriding treatmentHard-chrome electroplatingBimetallic alloy weldingBimetallic alloy centrifugal castingTechnical parameter:Nitrided layer depth: 0.5-0.8mmNitrided hardness: 900-1000HVNitrided brittleness: Less than grade 1Surface roughness: Ra0.4Linearity of screw: 0.015mmHard-chrome plating hardness after nitriding: >=950HVChrome-plating layer depth: 0.025-0.085mmBimetallic layer depth: 3mmWarranty and service: 1 yearOur advantages:1)Excellent raw materials2)Good customer service3)Rapid delivery4)Reasonable price5)Production quicklyExperienced manufacture, we will be the best choice.ProductCool feeding /hot feeding rubber screw barrel Hardness after hardening and temperingHB260°~320° Nitrided Hardness HV950°~1000° Nitrided Depth 0.50~0.7mm Nitrided Brittleness above 2 stage Surface Roughness Ra0.4 Screw straightness 0.015mm Hardess of surface chromium-plating after Nitriding HV≥950HV Chromium-plating Depth 0.05~0.10mm ALLoy Depth 0.8~2.0mm Alloy hardness HRC56°~65° Alloy iron,nickel,tungsten,molybdenum Types of screw Gradual type,mutant type,wave type,barrier type,double screen type,shunt type,separation type,exhaust type,pin type,mixed type,double-head type,three-head type,multi head type etc.
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