Polyurethane rubber sealing ring refers to the sealing ring made of polyurethane rubber material. The product models include polyurethane rubber O-ring, polyurethane rubber V-ring, polyurethane rubber U-ring, polyurethane rubber Y-ring, polyurethane rubber rectangular sealing ring, polyurethane rubber special-shaped sealing ring, polyurethane rubber sealing gasket, etc. The full name of polyurethane rubber is rubber, which is a kind of elastomer between natural rubber and general plastic, and is a kind of artificial polymer. At present, the polyurethane rubber used in the pressure processing of sheet metal is mainly polyester casting type. It is composed of adipic acid, ethylene glycol, polycondensation into a molecular weight of about 2000, and further with a lower molecular weight of the end of the end of the prepolymer, and according to the content of the end of the different, and MOCA'-melt mixed casting molding, and by secondary vulcanization to obtain different hardness of polyurethane rubber products.

The hardness of the polyurethane rubber seal ring is applicable to a wide range. It can be adjusted between Shore 20A and 90 degrees according to the different requirements of sheet metal processing.

Due to the physical and mechanical properties of polyurethane rubber is very good, it is usually used in some products with high performance requirements, such as wear-resistant products, high-strength oil-resistant products, high hardness and high modulus products. Polyurethane rubber is widely used in machinery industry, automobile manufacturing industry, petroleum industry, mining industry, electrical appliances and instrument industry, leather and shoe industry, construction industry, medical and health and sports goods manufacturing and other fields.

In automobile and mechanical parts, polyurethane can be used to make high-frequency brake buffer components, various anti-vibration rubber parts, rubber springs, couplings, and textile machinery parts; in oil-resistant products, printing rollers and seals can be made., Fuel containers, oil seals, etc; in the harsh conditions of the friction environment can be used as a variety of transport pipes and grinding equipment lining, sieve, screen, sole, friction transmission rubber wheel, bushing and sleeve, brake pads, bicycle tires, etc.

The rubber can also be used as a new type of cold blanking and bending material to replace the steel concave die with long processing cycle and high cost. Using the mechanism of the isocyanate group in its structure and the release of CO2 after the action of water, the foam rubber can be made with only 1/30 of the weight of water, and has good mechanical properties. Used for insulation, heat insulation, sound insulation, anti-vibration, the effect is very good. The rubber can also be used as functional rubber manufacturing parts, blood vessels, artificial skin, etc., as well as various infusion tubes, repair materials, dental materials, etc.

The hardness of the polyurethane rubber seal ring is applicable to a wide range. It can be adjusted between Shore 20A and 90 degrees according to the different requirements of sheet metal processing.