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China, Chinese Durable Phenolic Resin Machine Parts for Versatile Work Environments and Applications1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Plastic ProductsInjection Molding PartsDurable Machine PartsPhenolic Resin Machine Parts
Ningbo Zhongmu Rubber Products Co., Ltd
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Product Description Product DescriptionDelve into the world of rubber product customization with our systematic, precision-driven approach that skillfully tailors rubber materials to meet your specific product requirements. Our process is a harmonious blend of meticulous material selection, performance optimization, and fine-tuning of process parameters. Discover the core processes and technical aspects shaped by our extensive industry expertise:1. Raw Material Preparation and Pretreatment1. Main Material SelectionChoose the ideal type of raw rubber based on the product's purpose: whether it’s natural rubber for unparalleled elasticity, nitrile rubber for superior oil resistance, or silicone rubber to withstand high temperatures, ensuring your products perform flawlessly.2. Compound Agent DispensingPrecisely add a blend of vulcanizing agents (sulfur or peroxide), promoters, anti-aging agents, and fillers like carbon or white carbon black. Customize the performance with exceptional precision, maintaining an weighing error of just 0.1%.3. Treatment of Reinforcement MaterialsEnhance the binding strength of the skeletal material—be it steel wire or fiber—by expertly soaking it in rubber and drying it at a consistent 60-70°C.2. Plastic Refining ProcessIncrease plasticity by lowering the molecular weight of raw glue via mechanical extrusion or thermal oxidative degradation, utilizing advanced machinery like opening or compacting machines.1. Mechanical Plastic Smelting: Sustain a temperature of 60°C and ensure viscosity is reduced to below 60 for optimal results.2. Thermoplastic Refining: Ideal for natural rubber pretreatment, this method effectively incorporates compressed air for enhanced processing.3. Mixed Refining ProcessAchieve uniform dispersion and consistent properties in your mixed rubber using a state-of-the-art rubber refining machine.Key control points: Maintain a precise temperature of ≤120°C, control the time to a brief 5-15 minutes, and set roll distance to a precise 1-3mm.Customized adjustments:1. For high wear-resistant products: Enhance durability by increasing carbon black content to 40-50 parts by weight.2. For high temperature resistant products: Fortify resilience by adding 5-8 parts by weight of zinc oxide and a reliable silane coupling agent.3. For the moulding process:Placement formingSuitable for rubber plates and sealing strips, it is necessary to control the adhesive thickness tolerance within ± 0.1mm.Extrusion and shapingFor the hose and sealing ring, the design of the mouth die directly affects the accuracy of the section.Modular pressure moldingMetal-rubber composite molds should be used for complex structures.Injection moldingComplex structural parts are multi-material composite componentsDetailed PhotosProduct ParametersRubber materials and characteristicsnative rubber(NR)High elasticity (tensile strength 20-25MPa), wear resistance, tear resistance, but poor oil resistance and ozone resistancestyrene-butadiene rubber(SBR)Excellent wear resistance (low cost), but the elasticity, tear resistance is weaker than natural rubberbutadiene rubber(BR)Outstanding cold resistance (-70oC is still elastic), wear resistance, but low strength, poor tear resistanceDing eyes rubber(NBR)Excellent oil resistance (mineral oil, lubricating oil), low compression permanent deformation, but poor low temperature resistanceethylene-propylene rubber(EPDM)Optimal weather resistance, ozone resistance, high temperature resistance (150oC), good electrical insulation, but poor oil resistancechloroprene rubber(CR)Good aging resistance, ozone resistance and flame retardant, but poor low temperature performance (brittle below-30oC)silastic(VMQ)Temperature resistance range (-70~300oC), excellent biocompatibility, but low mechanical strengthfluorine(-containing)rubber(FKM)High temperature resistance (250oC), strong acid and alkali resistance, oil resistance, but poor air permeability, high processing difficultyhydrogenated butadiene-acrylonitrile rubber (HNBR) Oil resistance, high temperature resistance is better than ordinary NBR, wear resistance is strongchlorosulfonated polyethylene(CSM) Resistance to strong acid and strong alkali (such as concentrated sulfuric acid), ozone resistance, but poor oil resistanceurethane rubber(PU)Excellent wear resistance (high Shaw hardness), tear resistance, but poor oil resistance, weak weather resistanceacrylic rubber(ACM)High temperature resistance (200oC), oil resistance (such as ester lubricating oil), but poor cold resistancePackaging & ShippingInstallation InstructionsSuggestions for type selectionOil resistance sceneNitrile rubber (NBR) or fluorine rubber (FKM) is preferredhot environment Silicone rubber (VMQ) or fluorine rubber (FKM)resistance to chemical attack Chlorosulfated polyethylene (CSM) or fluorine rubber (FKM)dynamic packingEthpropylene rubber (EPDM) or polyurethane rubber (PU)Company ProfileOur AdvantagesFAQ
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