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Polytetrafluoroethylene welding sandwich gasket

A polytetrafluoroethylene, interlayer technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of easy corrosion, aging, affecting the sealing performance, etc., and achieve good sealing performance, convenient production, and long service life. Effect

Inactive Publication Date: 2014-09-10
杨海蓉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Rubber seals are used on the flanges of traditional reaction kettles and pipes, and the rubber is exposed to the outside, which is easy to corrode and age, thus affecting the sealing performance

Method used

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  • Polytetrafluoroethylene welding sandwich gasket

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with embodiment.

[0011] figure 1 A PTFE welded interlayer gasket shown includes a braided rubber asbestos cushion and a polytetrafluoroethylene shell 3, the polytetrafluoroethylene shell 3 completely covers the braided rubber asbestos cushion, and the thickness of the polytetrafluoroethylene shell is 0.35-0.45 mm, the woven rubber asbestos cushion is composed of rubber 1 woven on asbestos board 2.

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Abstract

The invention discloses a polytetrafluoroethylene welding sandwich gasket which comprises a braided rubber asbestos pad layer and a polytetrafluoroethylene shell. The polytetrafluoroethylene shell totally covers the braided rubber asbestos pad layer. The braided rubber asbestos pad layer is formed by a rubber braided asbestos board, and is totally covered with the polytetrafluoroethylene shell to form a composite gasket. The polytetrafluoroethylene welding sandwich gasket is simple in structure, convenient to produce, low in cost, acid resistant, alkali-resistant, corrosion resistant, aging resistant, long in service life and good in sealing performance.

Description

technical field [0001] The invention relates to a composite washer, in particular to a polytetrafluoroethylene welded sandwich washer. Background technique [0002] Rubber seals are used on the flanges of traditional reaction kettles and pipes. The rubber is exposed to the outside, which is easy to corrode and age, thus affecting the sealing performance. Contents of the invention [0003] Aiming at the deficiencies of rubber seals in the prior art, the invention provides a polytetrafluoroethylene welded interlayer gasket with simple structure, convenient manufacture, acid and alkali resistance, corrosion resistance, aging, long service life and good sealing performance. [0004] The technical solution adopted in the present invention is: a polytetrafluoroethylene welded interlayer gasket, comprising a braided rubber asbestos cushion and a polytetrafluoroethylene shell, and the polytetrafluoroethylene shell completely covers the braided rubber asbestos cushion. [0005] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/10
Inventor 杨海蓉
Owner 杨海蓉
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