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China, Chinese Rubber Extrusion Screw Barrel Rubber Screw Cylinder1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Rubber MachineryRubber Machine PartsScrew Barrel for Rubber MachineryScrew Barrel
Zhejiang Zhongyang Screw Manufacturing Co., Ltd.
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Product Description Rubber Screw barrel, rubber extrusion screw barrel, plastic machinery screw barrel, pins cylinder for rubber machinerySpecification: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.TypeModelHardness(HRC)Wear resistantCorrosion resistantThicknessApplicationGlass FiberPTA weldZB1 38CrMoAlANi-base alloy45-58ExcellentSpecial excellent1.5~3mmUnder 10%ZB2 SKD61Ni-base alloy45-58Special excellentExcellent1.5~3mmUnder 15%NitridingNitridedHV more than 800GoodGood0.25mm/ Types of Bimetallic Screw For barrels, there are 4 kinds of bimetallic alloys against all types of wear:Alloy TypeEJS01 AlloyEJS02 AlloyEJS03 AlloyEJS04 AlloyWear resistanceVery goodGoodVery goodExcellentCorrosion resistanceGoodVery goodVery goodVery goodAlloy componentsFe+Ni+Cr+BNi+Cr+Co+BNi+Cr+Co+V+BNi+Cr+Wc+Co+BHardness (HRC)58~6450~5855~6056~62Temperature area (°C)less than 400less 450less than 450less than 600Coefficient thermalRT-250°C11.0 x 10 -6 11.0 x 10 -611.5 x 10 -611 x 10 -6Expansion (/°C)RT-400°C11.4 x 10 -611.4 x 10 -612.4 x 10 -612 x 10 -6
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