Metal-graphite co-growth high-temperature fluid seal forming process

A high-temperature fluid and metal graphite technology, which is used in engine sealing, material forming presses, manufacturing tools, etc., can solve problems such as the decrease in the protection effect of internal graphite sealing and the damage to the original structure of metal materials, and improve the anti-oxidation ability. , Improve the sealing protection performance, improve the effect of high temperature resistance

Active Publication Date: 2022-05-31
无锡宝亿沣密封材料有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, although the use of metal materials to coat graphite can play a role in sealing graphite, the graphite packing ring will rotate relative to the pipeline in the actual working environment, and the relative friction between the pipeline and the external metal material will easily make the metal material Migration occurs, and the original structure of the metal material is destroyed, thereby reducing the sealing protection of the metal material to the internal graphite

Method used

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  • Metal-graphite co-growth high-temperature fluid seal forming process
  • Metal-graphite co-growth high-temperature fluid seal forming process
  • Metal-graphite co-growth high-temperature fluid seal forming process

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Embodiment Construction

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

[0024] as attached Figures 1 to 3 In the metal-graphite co-growth high-temperature fluid seal molding process method, an annular and concave molding groove is arranged on the mold under the packing ring, and a mesh metal belt wound into multiple turns is placed in the inner ring and outer ring area of ​​the molding groove , in the middle area of ​​the forming groove, put the graphite tape wound into multiple circles, and make the graphite tape between the mesh metal belts of the inner and outer rings; the lower pressure head of the mold on the packing ring is pressed into the forming groove, and the graphite The packing ring 1 is formed by pressing, and the graphite component of the graphite belt penetrates into the mesh metal belt of the inner ring and the outer ring.

[0025] The compressed graphite packing ring 1 is annular, and the graphite packing ring 1 include...

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Abstract

The invention discloses a forming process for metal-graphite symbiotic high-temperature fluid seals. The graphite packing ring has an annular structure, and the graphite packing ring includes a middle graphite structure and a mesh metal structure at the edge, and the mesh metal structure is interwoven on the On the inner ring and the outer ring of the graphite structure in the middle, the two mesh metal structures located on the inner ring and the outer ring are independent of each other. An infiltrated graphite structure is arranged in the mesh metal structure, and the mesh metal structure is integrally connected with the intermediate graphite structure through the infiltrated graphite structure. The metal mesh and graphite cooperate with each other, the setting of the mesh metal structure can protect the middle graphite structure, and the setting of the permeable graphite structure can lubricate the mesh metal structure. The invention improves the anti-oxidation and high temperature resistance of the graphite packing ring by setting the mesh metal structure, and the mesh metal structure used as the sealing protection layer has good stability.

Description

technical field [0001] The invention relates to the technical field of pipeline seals, in particular to a forming process for metal-graphite symbiotic high-temperature fluid seals. Background technique [0002] Graphite packing ring is a widely used seal, mostly used for pipeline sealing. When the traditional graphite packing ring made of pure graphite works in a high temperature and high pressure environment, the graphite component is easily oxidized, resulting in quality loss of the graphite packing ring, greatly reducing the sealing effect, and even causing leakage in severe cases. [0003] For this reason, there has been a technical solution of using metal mesh or metal strips and graphite to compositely process graphite packing rings to improve the working performance of graphite packing rings under high temperature and high pressure environments. However, although the use of metal materials to coat graphite can play a role in sealing graphite, the graphite packing rin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/10F16J15/12B30B11/02
CPCF16J15/102F16J15/104F16J15/12F16J15/108B30B11/02
Inventor 殷晏
Owner 无锡宝亿沣密封材料有限公司
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