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Sealing gasket and manufacturing method

A technology of sealing gaskets and gaskets, applied in engine components, piston rings, mechanical equipment, etc., can solve the problems that metal gaskets cannot form a full seal and poor sealing effect, and achieve good sealing, reduce requirements, and improve The effect of softness

Active Publication Date: 2005-11-16
NINGBO TIANSHENG SEALING PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the disadvantages that the above-mentioned metal sealing gasket cannot form a full seal when used, resulting in poor sealing effect, and to provide a sealing gasket with complete integral sealing and good effect and its manufacturing method

Method used

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  • Sealing gasket and manufacturing method

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Embodiment

[0012] With reference to the drawings, the manufacturing method of the present invention includes the following steps: a. Cut the metal ring according to the size requirements: the inner ring 1, the outer ring 3; b. Cut the width of the graphite tape according to the compression ratio of the graphite plate and the density of the gasket. C. Choose a suitable mold according to the required specifications of the gasket; d. Wrap the graphite tape round by turn into the mold. The corresponding joints of the graphite tape wound into the mold are misaligned with each other, and the graphite ring 2 is pre-pressed; e , The inner ring, the outer ring and the graphite ring are molded and nested with a mold; f, demoulding; g, trimming and shaping.

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Abstract

The present invention relates to a method for preparing gasket seal. Said preparation method includes according to size requirement cutting metal ring; according to compression ratio of graphite plate and density of gasket cutting out width of graphite tape, according to the specification size required for gasket selecting proper mould; placing the graphite tape into the mould by turns and prepressing graphite ring; moulding the metal ring and graphite ring by means of mould and nesting metal ring with graphite ring together; demoulding; and edging and shaping so as to obtain the gasket seal.

Description

(1) Technical field [0001] The invention relates to a sealing gasket and a manufacturing method thereof. (2) Background technology [0002] Existing metal spiral wound gaskets are made of metal belts and graphite belts wound with each other. Since the metal belts are cut with teeth, they cannot form a complete seal during use, so there is a certain amount of leakage (≥1×10). -3 ml / sel); And the metal band in it is easy to damage the flange sealing surface, resulting in a decrease in sealing performance. In addition, there are potential dangers in some special industries (such as nuclear power hydrogenation equipment, etc.). (3) Contents of the invention [0003] The purpose of the present invention is to solve the shortcoming that the above-mentioned metal sealing gasket cannot form a full seal when in use, resulting in a poor sealing effect, and to provide a completely integrated sealing gasket with good effect and a manufacturing method thereof. [0004] To this end, the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J9/00
Inventor 励行根
Owner NINGBO TIANSHENG SEALING PACKING