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China, Chinese Aging Resistant Truck Seals for High Pressure and Chemical Resistance1 Industrial Products Supplier Manufacturer Details, price list catalog:
Silicone Silicone ProductsAging Resistant SealsHigh Pressure Seals
Ningbo Zhongmu Rubber Products Co., Ltd
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Product Description Product DescriptionDiscover the exquisite craftsmanship of our customizable rubber products, where precision harmonizes with versatility. Our all-encompassing process guarantees that each rubber article is crafted with meticulous care to meet your specific demands. This involves the careful selection of top-tier materials, maximizing performance, and refining process parameters—all steered by the most advanced industry standards:1. Raw Material Preparation and Pretreatment1. Main Material SelectionSelect the perfect type of raw rubber to align with the intended function of your product. Whether it's the exceptional flexibility of natural rubber, the oil resistance of nitrile rubber, or the outstanding high-temperature resilience of silicone rubber, we provide the finest selection available.2. Compound Agent DispensingAmplify the rubber's performance by accurately incorporating vulcanizers such as sulfur or peroxide, accelerators, anti-aging agents, and fillers like carbon black or white carbon black. Achieve unparalleled precision with an error margin as low as 0.1%.3. Treatment of Reinforcement MaterialsTo ensure optimal bonding strength, the reinforcement material, whether it's steel wire or fiber, is carefully pretreated. This involves immersion in rubber followed by drying at a calculated 60-70°C for seamless integration with the rubber.2. Plastic Refining ProcessEnhance the plasticity by reducing molecular weight through innovative mechanical extrusion or thermal oxidative degradation processes. Cutting-edge machinery, such as opening and compacting machines, is employed for this procedure.1. Mechanical Plastic Smelting: Maintain an exact temperature of 60°C to effectively decrease viscosity below 60, ensuring flawless processing.2. Thermoplastic Refining: Ideal for natural rubber pretreatment, this technique introduces compressed air to reach optimal outcomes.3. Mixed Refining ProcessAttain impeccably consistent features by uniformly dispersing the mixture within a high-performance rubber refining machine, producing a mixed rubber of exceptional quality.Key control points: Maintain an exact temperature of ≤120°C, with a processing time spanning 5-15 minutes, and a roll gap precisely set at 1-3mm.Customized adjustments:1. For products necessitating exceptional wear resistance, increase carbon black content to 40-50 parts by weight to enhance longevity.2. For products required to endure high temperatures, incorporate zinc oxide (5-8 parts by weight) along with a silane coupling agent for superior performance.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 ParametersComparison of key performance parametersindexNRNBRFKMSIREPDMTemperature resistance range-60~100oC-25~130oC-20~250oC-70~300oC-60~150oCoil resistivity insufficientexcellent(NBR40)extremely excellentinsufficientinsufficientozone resistanceinsufficientinsufficientexcellentexcellentexcellentabrasion performanceexcellentmiddlemiddleinsufficientexcellentElectric insulationexcellentinsufficientinsufficientexcellentexcellentSuggestions 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)Packaging & ShippingCompany ProfileFAQ
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