Polytetrafluoroethylene rubber pad

Abstract

The invention discloses a polytetrafluoroethylene rubber pad. The polytetrafluoroethylene rubber pad comprises an annular rubber layer, and two carbon fiber layers which are correspondingly adhered tothe upper surface and the lower surface of the rubber layer through adhesive, wherein a metal layer which is provided with a concave pit and a bump is arranged on the outer surface of each carbon fiber layer by compounding; two asbestos layers are adhered to the outer surfaces of the two metal layers by compounding through the adhesive; polytetrafluoroethylene layers are adhered to the outer surfaces of the two asbestos layers by compounding through the adhesive. According to the polytetrafluoroethylene rubber pad adopting the abovementioned structure, the compounding intensity is greatly improved through the concave pits and the bumps; high resilience is kept between every two adjacent layers, and thus the sealing reliability of the structure is improved; in addition, the compounding intensity is specially high, so that the problem of falling off is avoided; and moreover, the rubber layer, the carbon fiber layers, the metal layers and the asbestos layers are combined by layers basedon different attributes, so that the corrosion resistance can be improved, and as a result, the service life is prolonged.

Description

technical field [0001] The invention relates to a sealing gasket, in particular to a polytetrafluoroethylene rubber gasket. Background technique [0002] Gasket is an essential part for sealing in industries such as petroleum, chemical industry, machinery, and power generation. Although its structure is very simple, it plays a prominent role in various occasions. The existing rubber gasket Due to its unreasonable structural design, on the one hand, its resilience is poor, and it is easy to cause the problem of poor sealing after a long time. On the other hand, bonding and molding are generally used between layers of structure, which makes it easy to fall off between layers , which reduces the reliability of use. On the other hand, it is made of ordinary materials, and it is easy to be corroded in some severe corrosion situations, and its service life is very short. Contents of the invention [0003] The invention aims to provide a polytetrafluoroethylene rubber pad with g...

AI Technical Summary

Problems solved by technology

[0002] Gasket is an essential part for sealing in industries such as petroleum, chemical industry, machinery, and power generation. Although its structure is very simple, it plays a prominent role in various occasions. The existing rubber gasket Due to its unreasonable structural design, on the one hand, its resilience is poor, and it is easy to cause the problem of poor sealing after a long time. On the other hand, bonding and molding are generally used between layers of structure, which makes it easy to fall off between layers , which reduces the reliability of use. On the other hand, it is made of ordinary materials. In some severe corrosion occasions, it is easy to be corroded and has a very short service life.

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