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Flexible graphite gasket with concave arc inner and outer rings

A flexible graphite, concave arc technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of loss of sealing performance, loss of flexible graphite, etc., and achieve the effect of maintaining sealing performance

Pending Publication Date: 2020-10-09
SUFA TECH IND CNNC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] Disadvantages of the above structure: the flexible graphite gasket needs to be installed in a closed space to obtain a good sealing effect
[0020] If it is not installed in a closed space, the flexible graphite will be lost under the scouring of the fluid medium and gradually lose its sealing performance

Method used

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  • Flexible graphite gasket with concave arc inner and outer rings
  • Flexible graphite gasket with concave arc inner and outer rings

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Embodiment Construction

[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] As shown in the drawings, a flexible graphite gasket structure with a concave arc inner and outer ring is composed of an inner ring 3, an outer ring 2 and a flexible graphite 1, wherein the inner ring 3 and the outer ring 2 are made of metal, and the inner ring 3 and the outer ring 2 are made of metal. Flexible graphite 1 is arranged between the ring 3 and the outer ring 2 .

[0037] The sides of the inner ring 3 and the outer ring 2 in contact with the flexible graphite 1 have a concave arc, and the distance C between the bottom of the arc and the edges of the inner ring 3 and the outer ring 2 is about 0.5mm-1mm.

[0038] The thickness of the flexible graphite 1 is larger than the thickness of the inner ring 3 and the outer ring 2, and the thickness h of the inner ring 3 and the outer ring 2 is 70% to 80% of the thickness H of...

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Abstract

The invention belongs to the technical field of sealing, and particularly relates to a flexible graphite gasket with concave arc inner and outer rings. The flexible graphite gasket is formed by combining an inner ring, an outer ring and flexible graphite, the flexible graphite is arranged between the inner ring and the outer ring, the sides, making contact with the flexible graphite, of the innerring and the outer ring are each provided with a concave arc, due to the fact that the flexible graphite is pressed between the inner ring and the outer ring and the existence of the concave arcs of the inner ring and the outer ring, the flexible graphite cannot be disengaged from the inner ring and the outer ring, and therefore, the flexible graphite, the inner ring and the outer ring form a whole gasket. Due to the fact that the flexible graphite is located between the inner ring and the outer ring and is pressed into a whole, even if the gasket is installed in an incompletely-closed space,the gasket cannot be lost due to scouring of fluid media, and the sealing performance can be kept for a long time.

Description

technical field [0001] The invention belongs to the technical field of sealing, and in particular relates to a flexible graphite gasket with concave arc inner and outer rings. Background technique [0002] Common flexible graphite gasket structures such as figure 1 As shown, it is made of pure flexible graphite and has good sealing performance. [0003] Flexible graphite gasket is punched or cut from pure graphite plate, it has good corrosion resistance, high / low temperature resistance, good compression resilience and high strength, various round complex Geometric gaskets are widely used in pipes, valves, pumps, pressure vessels, heat exchangers, condensers, generators, air compressors, exhaust pipes, refrigerators, etc. [0004] Flexible graphite, also known as expanded graphite, uses scaly graphite as a raw material and undergoes chemical treatment to form an interlayer compound. [0005] At a high temperature of 800-1000°C, the interlayer compound turns into a gas, whi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/00
CPCF16J15/00
Inventor 李军业左凤华谭坤潘红洋石乾冲严新虹
Owner SUFA TECH IND CNNC
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