Metal tube circular moulded sealing washer and its manufacturing method

A technology for sealing gaskets and manufacturing methods, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as limited pressure resistance and compression rebound performance, loss of sealing performance, poor sealing performance, etc. The effect of wide stress range and convenient installation and use

Inactive Publication Date: 2008-05-21
SUZHOU BMC SEALING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] In the prior art, the sealing gaskets are mostly made of flexible materials, such as asbestos, rubber, etc., due to the poor ability of such materials to bear stress, after a period of use, due to the pressure and ambient temperature, the sealing gaskets It is easy to age or relax, and the sealing performance becomes poor or even loses the sealing performance. At the same time, it is easy to bend and deform during installation, which affects the sealing effect
There are also sealing gaskets made of metal materials. Because the metal tube is hollow, the pressure resistance and compression rebound performance are limited, and the scope of application is narrow. On this basis, an improved metal sealing gasket is used. On the hollow metal tube If there is an opening, although it plays the role of self-tightening seal, it is prone to bursting and being blocked by the medium when used, and the ideal sealing effect cannot be achieved.

Method used

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  • Metal tube circular moulded sealing washer and its manufacturing method

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Embodiment Construction

[0015] Referring to the metal pipe ring molded sealing gasket shown in accompanying drawings 1 to 2, it includes an annular metal pipe 1, a flexible sealing filler 2 filled in the metal pipe 1, and the metal pipe 1 The upper and lower outer surfaces of the upper and lower surfaces are respectively provided with cladding 3, the inner side of the metal pipe 1 has a ring-shaped restricted inner ring 4, and the outer side of the metal pipe 1 has a restricted outer ring 5, and the metal pipe 1 is clamped Immediately between the restriction inner ring 4 and the restriction outer ring 5, the metal pipe 1, the restriction inner ring 4 and the restriction outer ring 5 are arranged concentrically. The metal pipe 1 is made of materials such as carbon steel, stainless steel, copper, aluminum, Monel, Inconel, titanium, etc., and the flexible sealing filler 2 is a non-metallic material, such as graphite, fiber, A mixture of one or more than two types of polytetrafluoroethylene, the coating ...

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Abstract

The present invention relates to a metal tube ring moulded gasket seal. It includes ring-shaped metal tube and flexible seal filling material filled into the interior of said metal tube. The upper and lower surfaces of said metal tube are respectively covered with cladding layer, and said metal tube is fastened between limited inner ring and limited outer ring. Its manufacture method includes the following steps: (1), filling the flexible seal filling material into the internal cavity of metal tube; (2), bending and making the metal tube into the form of ring; (3), butt-welding two end noses of said ring metal tube to form seal ring; (4), moulding and making the metal tube be fastened between the limited inner ring and limited outer ring; and (5), respectively covering the upper and lower surfaces of said metal tube with cladding layer.

Description

technical field [0001] The invention relates to a method for manufacturing a sealing gasket, in particular to a method for manufacturing a metal pipe ring molded sealing gasket. Background technique [0002] In the prior art, the sealing gaskets are mostly made of flexible materials, such as asbestos, rubber, etc., due to the poor ability of such materials to bear stress, after a period of use, due to the pressure and ambient temperature, the sealing gaskets It is easy to age or relax, and the sealing performance becomes poor or even loses the sealing performance. At the same time, it is easy to bend and deform during installation, which affects the sealing effect. There are also sealing gaskets made of metal materials. Because the metal tube is hollow, the pressure resistance and compression rebound performance are limited, and the scope of application is narrow. On this basis, an improved metal sealing gasket is used. On the hollow metal tube If there is an opening, altho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/12
Inventor 马志刚
Owner SUZHOU BMC SEALING TECH CO LTD
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