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Natural rubber seal (NR)
Natural rubber seal (NR)
Product Details

Rubber seals can be classified according to the cross-sectional shape, vulcanization method, the use of parts and uses, the use of materials and other methods for classification.

(1) non-continuous vulcanization method (the extruded strip according to a certain length of the cut, into the vulcanization tank vulcanization, the extruded strip of semi-finished products into the model vulcanization);
(2) continuous vulcanization method (microwave continuous vulcanization method, salt bath continuous vulcanization method, hot air continuous vulcanization method and other methods) .A. Microwave continuous vulcanization composite seal: microwave curing technology is the 20th century, 70 years after the foreign energy crisis The use of microwave continuous curing technology can not only produce from the metal core, solid core and sponge glue a variety of materials composite tape, and, in energy saving, improve work efficiency and other aspects than other continuous curing device This technology is recognized by the world as the best method of producing extruded products.The microwave heating is characterized by the fact that heat is generated directly in the heated object rather than from the outside as it is, so that it is not only hot and fast , Is conducive to improving product quality and greatly shorten the time spent heating. B salt bath continuous vulcanization seal: salt bath vulcanization with nitrite salt bath system, the larger environmental pollution, has been gradually eliminated.
Vulcanization (Tmax: 450 ° C and Vmax: 60 m / s) also achieves the effect of flame pretreatment, and the safety is greatly improved.
Second, according to the rubber seal material classification Automotive seal rubber material is dense plastic, sponge rubber and hard rubber three. Hard rubber hardness up to Shore A95. Seal of the rubber compound more use of anti-aging (EPDM). EPDM can be used with steel strip, steel wire braided belt, TPE, flannel, flocking, PU coating, silicone coating, etc., and so on, with low temperature, moisture resistance, chemical resistance, especially ozone resistance Composite, to ensure that the car interior and outside and their own waterproof, dust, noise, heat insulation, vibration, anti-wear and decorative effect.
Under normal circumstances EPDM seal can be used for more than ten years. Can also choose a good resistance to ozone performance and good anti-aging properties of chloroprene rubber (CR). Taking into account the commonly used rubber compound process performance, and sometimes need to use and use rubber, Such as natural rubber (NR) and CR and styrene butadiene rubber (SBR) with three kinds of rubber or polyethylene (PE), EPDM and NR rubber and plastic type to improve the resistance to ozone.

热门标签:Natural rubber seal (NR), wholesale, manufacturers, custom, processing, large and super wide and wide, which is good, Shanghai, Hangzhou, Suzhou, Ningbo, Changzhou, Wuxi