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Wave tooth composite gasket

A composite gasket and corrugated tooth technology, applied in the direction of engine sealing, flange connection, passing components, etc., can solve the problems of affecting the sealing effect, corrosion and damage of corrugated composite gaskets, etc.

Inactive Publication Date: 2017-05-24
CIXI HIGH NEW COXIN SEALING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, the flange and the corrugated composite gasket are under high temperature and high pressure conditions for a long time, and the fluid in the pipeline erodes the inner ring surface of the corrugated composite gasket for a long time, which will easily slow down the corrugated composite gasket. Slow corrosion damage, thus affecting the sealing effect

Method used

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  • Wave tooth composite gasket

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the drawings.

[0024] As attached figure 1 The corrugated composite gasket shown includes a ring-shaped metal frame 1. The upper and lower sides of the ring-shaped metal frame 1 are provided with corrugated teeth 2 arranged concentrically with the ring-shaped metal frame 1. The cross-sectional shape of the corrugated teeth 2 is an isosceles trapezoid. Here, the tooth tips of the corrugated teeth 2 on the upper and lower sides of the annular metal skeleton 1 are arranged in a staggered manner. The upper and lower sides of the annular metal skeleton 1 are also compounded with a flexible non-metallic layer 3, and the flexible non-metallic layer 3 is a flexible graphite layer made of expanded graphite.

[0025] A first annular rubber ring 4 made of fluororubber material is provided on the inner ring surface of the ring metal frame 1, and a second ring rubber ring 9 is sleeved on the outer ring ...

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Abstract

The invention discloses a wave tooth composite gasket. According to the technical scheme, the wave tooth composite gasket is characterized by comprising an annular metal framework, wave teeth concentric with the annular metal framework are arranged on the upper side and the lower side of the annular metal framework, and the wave teeth on the two sides are arranged in a staggered manner; flexible nonmetal layers are further compounded to the upper side and the lower side of the annular metal framework; a first annular rubber ring made of fluorous rubber materials is arranged on the inner ring face of the annular metal framework, and the thickness of the first annular rubber ring is larger than the thickness of the annular metal framework and smaller than or equal to the sum of the thickness of the annular metal framework and the thicknesses of the flexible nonmetal layers on the upper side and the lower side. The wave tooth composite gasket has good resilience performance and sealing performance, repeated impacts and erosion of fluid to the annular metal framework and the flexible nonmetal layers can be reduced through the first annular rubber ring, the sealing performance of the gasket is improved, and the service life of the gasket is prolonged.

Description

Technical field [0001] The invention relates to the field of seals, in particular to a corrugated composite gasket. Background technique [0002] Corrugated composite gasket is a kind of metal composite gasket. Generally, the two sides of the metal flat gasket are processed into concentric corrugated grooves on both sides of the metal flat gasket with a precision lathe or a special milling machine. Good compression resilience, because the contact with other sealing surfaces is multiple concentric circles, it has a labyrinth sealing effect. According to different media and working conditions, flexible non-metallic materials or other soft metals can be selected. It is pasted on both sides of the gasket, taking advantage of the tightness of the soft covering layer and the strength and elasticity of the metal to achieve a better sealing effect. [0003] For example, the Chinese Patent Publication No. CN205639961U discloses a flexible graphite metal corrugated composite gasket, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L23/18F16J15/10
CPCF16J15/102F16J15/104F16L23/18
Inventor 龚旭远
Owner CIXI HIGH NEW COXIN SEALING MATERIAL
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