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The role of silicone rubber strips

by:Kenna     2021-05-06
The role of silicone rubber strips, talk about the important role of epdm for doors and windows. With the further development of technology and the continuous improvement of living standards, and the call of an energy-saving and harmonious society that has been advocated, we all know that doors and windows are the eyes of buildings. Its energy loss can account for 40% of the total energy loss of buildings, which has attracted enough attention, especially in large cities like the capital Beijing, in 2004, the heat transfer coefficient of doors and windows (indices for heat preservation and energy saving) was used as Compulsory acceptance indicators have also attracted great attention and implementation in various provinces, cities and regions across the country. Energy-saving doors and windows have become the mainstream of building doors and windows. 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. The function of the silicone rubber strip is formed by microwave vulcanization process. The surface is smooth and beautiful, without joints, has good elasticity and resistance to compression deformation, excellent aging resistance, excellent flame retardant performance, low smoke and low toxicity; stable product performance, size High precision, six, burning, PVC sealing strips will foam, shrink and emit black pungent smoke when burning, insufficient combustion, leaving hard plastic residues, silicone rubber sealing strips are almost smokeless, odorless, and fully burned. After burning the substance is white powder. 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 medium 0. For car sealing strips, we must pay more attention to maintenance and master the correct maintenance methods, otherwise the maintenance effect will not be achieved. Let us understand the importance of car sealing strip maintenance. Products The elasticity and compression resistance of the automobile sealing strip are very good, and it also has good resistance to aging, ozone and chemical effects, etc., making the product very strong and durable during use, and installation It is also very convenient. Technical realization elements: 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 and can withstand the attack of cold air in a harsh climate. , To ensure good performance, thereby ensuring personal safety. Technical realization elements: 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 and can withstand the harsh climate. The intrusion of cold air ensures good performance and personal safety. The function of silicone rubber strips The above is an introduction to the characteristics and uses of rubber sealing strips. It can be seen that the characteristics of the product are not only very many, but also more useful. Extensive, this is also the main reason for being recognized by everyone. Features: EPDM has excellent weather resistance, weather resistance refers to long-term resistance to severe cold, heat, dryness, and humidity, and has excellent corrosion resistance to rain and snow. Corrosion resistance, can extend the service life of the rubber strip; heat aging resistance refers to strong heat-resistant air aging. Also called fireproof silicone sealing strip and fireproof self-extinguishing silicone sealing strip, because it has good flame retardancy It is famous for its fireproof and self-extinguishing performance. The main process is to first use high-quality silica gel raw materials to make a molded silica gel strip through a large extruder, and then go through high room temperature vulcanization and drying. It is compared with ordinary silica gel strips. The difference between high temperature resistant flame retardant silicone strips is that it needs to add flame retardant powder to the formula. The silicone strips made in this way have super flame retardant and fireproof performance, and they play a certain role in safety protection in the sealing of electronic appliances. Therefore, many people also call it fireproof sealing strip. Silicone sealing strip can also be glued to smooth surface materials because of its shock resistance and water resistance. The performance of automobile sealing strips is very high. According to the classification of the compound structure of the rubber material, the car sealing strips can be divided into pure rubber sealing strips-composed of a single type of rubber; second composite sealing strips-composed of dense rubber and foam sponge rubber, often inside the dense rubber Contains metal framework materials in the axial direction;
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