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Current situation of plastic seals
Release time:2013-02-28 Source:admin Reads:
Article car seal products production and processing technology is mainly divided into two categories: one is the rubber for raw material sealing strip products, this kind of product processing technology including rubber mixing process (two stages mixing), a variety of material composite extrusion process (hard rubber, soft glue, color glue, sponge rubber, metal frame, strengthening the line, etc.), heating vulcanization process (microwave vulcanization, hot air vulcanization, glass beads expanded bed vulcanization, salt bath vulcanization, vulcanizing pot vulcanization, etc.), after processing technology (cutting, vulcanization joint, electrostatic flocking, surface coating, adhesive, etc.), The second is plastic and thermoplastic elastomer (TPE) as raw material of plastic seals strip products, such products do not need to heat vulcanization process, the product after extrusion only cooling molding, production line is short, the equipment is relatively simple. In automobile sealing strip composite extrusion process, high degree of automation, the domestic technology has been relatively mature, there have been many companies may, according to the article car seal the needs of the enterprises for extrusion line group line design, processing and debugging. Compared with foreign extrusion production line, the domestic production line price is low, only about a third of imported production line, equipment capability index is low, usually used in ZhongDiDuan car plastic seals strip production. Automobile sealing strip composite extrusion process one of the most important parameters of normal production is the extrusion speed, this parameter is bigger, it produces automobile sealing strip products comprehensive cost is lower, the stronger market competition. Decide the process parameters of quality factors, in addition to complete production in line with equipment capacity besides, suitable for high speed extrusion materials, structure, formula design will play a great decision effect. At present. The parameters are generally divided into three levels: less than 10 m/min, 10 m - 20 m/min, more than 20 m/min. Domestic automobile sealing strip enterprise mostly in 10 m/min, within a few joint ventures and chinese-invested enterprises achieve 10 m to 20 m/min, and foreign automobile Plastic seals strip enterprise basically are in 20 m/min above.

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