Silicone strip automatic fuel injection machine, but also has good dustproof, sound insulation and decoration effects, and also protects the car body, effectively improving the comfort of the ride. The characteristics of the car sealing strip are resistant to -40°C. In the low-temperature experiment, the sealing tape does not become hard and brittle, it still maintains softness and good adhesion of the tape, showing excellent cold resistance. The performance characteristics of the EPDM sealing strip: excellent comprehensive performance and outstanding resistance Ozone resistance, excellent weather resistance, good high temperature and low temperature resistance, outstanding chemical resistance, resistance to a variety of polar solutes, and low relative density. Automobile product rubber formula and its preparation method and process Background technology: At present, the low temperature performance of rubber products used in automobiles on the market is generally around -25°C, but the rubber parts on automobiles cannot withstand cold air in a harsh climate. The airflow caused the product life to be greatly reduced. The performance of rubber products used in automobiles directly affects personal safety. For example, the recall of some of the cars sold by Toyota in the past few years caused serious reputational consequences. Therefore, all automobile manufacturers need a long-term stable performance. Adequately safe rubber products. Silicone strip automatic fuel injection machine is classified according to the title of the device part (component). It includes the engine room sealing strip, the front and rear wind window sealing strip, the door frame sealing strip, the door sealing strip, the door glass guide groove sealing strip, Dust-proof strips on the lower part of the door, internal and external sealing strips for door and window sills, side window sealing strips, sunroof sealing strips, roof cover sealing strips, trunk (luggage) sealing strips, etc. Installation method: self-contained double-sided tape, just stick it directly (The paste surface must be smooth, clean, smooth and dry). Energy-saving doors and windows are roughly composed of profiles, hardware, glass and EPDM door and window sealing strips, as well as several major modules of processing technology. The sealing strips are relatively low cost due to their proportion and are affected by some traditional concepts that do not pay attention to energy-saving standards for doors and windows. , Has been ignored by many door and window manufacturers, but we can’t help but admit that the sealing strip plays a vital role in the door and window system. What important role can EPDM sealing strip play in the door and window system? . The 'specialized' covered sealing strip originated from Germany and has been popular in the European market for a long time. It is famous for its environmentally friendly sealing performance. PVC sealing strip vendors have made great efforts in using fillers. Some manufacturers are pursuing greater output. , (Saving a little electricity) Use talc, heavy calcium and the like as fillers, which greatly increases the specific gravity of the sealing strip products (our users generally buy by kilograms and use them by length). The cost has been severely reduced and the quality has to be tried. Technical realization factors: The technical problem to be solved by the present invention is to provide a rubber formula for automobile products and a preparation method thereof, which has good low-temperature performance, can withstand the attack of cold air in a local environment with relatively bad weather, and guarantees good performance. Ensure personal safety. Technical realization factors: The technical problem to be solved by the present invention is to provide a rubber formula for automobile products and a preparation method thereof, which has good low-temperature performance, can withstand the attack of cold air in a local environment with relatively bad weather, and guarantees good performance. Ensure personal safety. In general, the EPDM sealing strip can be used stably for more than ten years. With the continuous development and maturity of the thermoplastic elastomer (TPE) technology, the application field continues to expand. According to the classification of vulcanization (1) Discontinuous vulcanization ( After cutting the extruded rubber strip
to a certain length, it is put into a vulcanizing tank to vulcanize, and the semi-finished product of the extruded rubber strip is put into the model to vulcanize); (2) Continuous vulcanization method (microwave continuous vulcanization method, salt bath continuous vulcanization method, Hot air continuous vulcanization and other methods). A small number of door and window companies in low-level price competition are still in use. Medium and high-end PVC strips can meet the standard indicators and have a relatively long service life. 5. Because of their excellent physical and mechanical properties, they are often used in the manufacture of airplanes and cars. , Trains, passenger cars, ships, high and low voltage switch cabinets, glass curtain walls, aluminum alloy heat-breaking window sealing parts and diving products, high-pressure steam hoses, tunnels, viaduct joints and other waterproof parts and other industrial and agricultural sealing parts, 8℃, EPDM rubber has excellent UV resistance, weather resistance, heat aging resistance, low temperature resistance, ozone resistance, chemical resistance, water resistance, good electrical insulation and elasticity, and other physical and mechanical properties. 2. The semi-finished rubber sealing strip extruded by the vulcanization cold feed extruder is vulcanized by continuous vulcanization process. The vulcanization methods include microwave vulcanization, shear head vulcanization, salt bath vulcanization and fluidized bed vulcanization (also called vulcanization bed vulcanization, heating medium For the middle 0. Humanization 'In the past, the tradition has always paid more attention to materials and workmanship, ignoring the attention to humanization in use, the performance advantages of the coated sealing strip? 1. Compression deformation test: 50% at 70℃ Compression rate continuous compression for 22 hours, deformation rate≤10%2, compression force test, under 25% compression rate, apply a force of 15N/100mm, compression rate≤10N3, temperature range test: from -40℃ to 90℃ No obvious change in sealing performance 4. Thermal conductivity K value test: K value ≤ 0 at 0°C.
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