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Sealing Principle of Rubber Joints

时间:2019-5-9 来源:万瑞工贸 浏览量:1885

Rubber joint is a flexible joint used to connect hardware pipes. The product has the characteristics of shock resistance, noise reduction and displacement resistance. At the same time, due to the special structure of the product, it also has the characteristics of waterproof and leak-proof. The sealing principle of rubber joint should start with product structure.

The rubber joint consists of inner rubber layer, nylon cord, outer rubber layer rubber ball and loose sleeve metal flange. By introducing advanced production technology from abroad, the inner layer is in a high pressure state, which makes the nylon cord fabric and rubber layer combine better than the ordinary flexible rubber joint, with higher working pressure and better quality. It is characterized by mixing of inner rubber layer, smooth and seamless marking, label vulcanization, and product combination.

The main materials of rubber joint inner layer are natural rubber and styrene-butadiene rubber, or natural rubber, styrene-butadiene rubber and cis-butadiene rubber; rubber and plastic mixture can also be used, and appropriate amount of recycled rubber can be used. Sulphur and accelerators are usually used in traditional vulcanization systems. The amount of sulfur is 1.5-2.5. Thiazole and sulfonamide are better for the accelerator. Reinforcement and filling system: high wear-resistant carbon black, semi-reinforced carbon black and general carbon black mix, usually better comprehensive performance. Softeners: Petroleum softeners such as heavy oil, loose tar and solid softeners such as asphalt and petroleum trees. It works better when fat is used together.

Rubber joints mainly use the unique properties of rubber, such as high elasticity, high air tightness, medium resistance and radiation resistance. Polyester cord with high strength, strong thermal stability and cold stability is crosslinked with rubber by high pressure and high temperature moulding and pressing. It has high internal density, high pressure and excellent elastic deformation effect. Product structure design has high-end arc, long curve and large displacement function. It is especially suitable for places where the geological conditions are complex, the settlement range is large and the pipeline is damaged by frequent changes of temperature and cold. The physical displacement of the pump eliminates valves and pipes effectively by using the heat transfer and escape functions of elastic sliding displacement of rubber and deformation mechanical force. Because rubber is a bad conductive material, it is also an ideal environmental protection product to reduce vibration and noise transmission. The inner wall of the product is smooth. After the actual test, it has no effect on the speed and flow rate of the medium. It will never rust and can basically avoid maintenance in the whole life.



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