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Classification of automotive rubber products and their role in automobiles
The rapid development of China's automobile industry promotes the development of other related industries in China, especially the rubber industry. In the past few years, automotive rubber products have developed into a unique specialized product industry. Automotive rubber products are an indispensable and important component in auto parts. About 100-200 kinds of rubber products are installed on each car, and about 200-500 rubber accessories are used. In addition to tires, due to different specifications of cars, the consumption of rubber materials is about 15-60kg, and automotive rubber products (excluding tires) account for about 6% of the total cost of the car. There are more than 1000 varieties of non-tire rubber products for the automotive industry, with more than 8000 specifications. According to statistics, the automotive industry accounts for more than 70% of the world's annual consumption of raw rubber, of which tires account for 60% and automotive rubber parts account for 40%.
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Working of Rubber Diaphragm Original Science
Diaphragm pump is a special form of positive displacement pump. It relies on a rubber diaphragm to drum back and forth to change the volume of the working chamber to inhale and discharge the liquid. The pneumatic diaphragm pump is mainly composed of two parts: the transmission part and the diaphragm cylinder head. The transmission part is a driving mechanism that drives the diaphragm to drum back and forth. Its transmission forms include mechanical transmission, hydraulic transmission and pneumatic transmission, among which hydraulic transmission is widely used. The working part of the diaphragm pump is mainly composed of a crank connecting rod mechanism, a plunger, a hydraulic cylinder, a diaphragm, a pump body, a suction valve and a discharge valve. Among them, the driving mechanism composed of a crankshaft connecting rod, a plunger and a hydraulic cylinder is reciprocating. The plunger pump is very similar.
Advantages and disadvantages of silicone sealing ring
1. silicone sealing ring advantages: 1, good sealing performance, waterproof, environmental protection, non-toxic; 2, can be heated at high strength temperature, no deformation, no harmful substances; 3. It has good tensile resistance; 4, long-term use of the same yellow will not fade;
How to choose the right O-ring
1. Hydrogenated butyl cyanide rubber It has good corrosion resistance, pressure resistance and tear resistance, and can also resist the invasion of ozone, sunlight and oil pollution. It is suitable for O-rings in automobile engines, washing machines and new refrigeration systems, but cannot be used in esters, alcohols and aromatic solvents. 2. Butadiene-cyanide rubber