Carbon fiber coated seal gasket and manufacturing method thereof

A sealing gasket and carbon fiber technology, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of poor spinnability, etc., and achieve the effects of good thermal shock resistance, strong acid resistance, and low friction coefficient

Inactive Publication Date: 2016-11-09
DONGTAI HUAYANG GLASS FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, carbon fiber is light in texture, smooth in surface, easy to loose, and has poor spinnability.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] Embodiment: the preparation method of carbon fiber coated sealing gasket, comprises the following steps:

[0029] (1) Ingredients mixing: Put 30 parts of hexagonal boron nitride powder, 38 parts of graphite powder, 6 parts of rubber, 7 parts of nitrile modified phenolic resin, 7 parts of aramid fiber, and 7 parts of glass fiber into a high-speed mixer Stir for 9 minutes, the stirring rate of the high-speed mixer is 3000 rpm, and the mixed material is prepared for subsequent use;

[0030] (2) Carbon fiber layer: use carbon fiber with a diameter of 170-300 microns to weave into carbon fiber woven cloth, then soak the carbon fiber woven cloth in anti-aging agent for 5 minutes, and finally take it out and drip dry for later use;

[0031] (3) Reinforced fiber layer: take aramid fiber and glass fiber with a weight ratio of 5:2 to make a ply yarn, and then use a braiding machine to weave the ply yarn into a reinforced fiber net;

[0032] (4) Tabletting: Lay the carbon fiber l...

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Abstract

The invention discloses a carbon fiber coated seal gasket. The seal gasket comprises a carbon fiber layer on the periphery, mixed material layers in the middle and a reinforced fiber layer between the mixed material layers. By adopting hexagonal system boron nitride, the seal gasket is low in friction coefficient, high in high-temperature stability, heat shock resistance and strength, large in heat conductivity coefficient, small in dilatation coefficient, large in specific resistance, resistant to corrosion and capable of transmitting microwaves or infrared rays and has high elasticity and plasticity as rubber is high in elasticity. The periphery of the seal gasket is coated with the carbon fiber layer, and the seal gasket is high in acid and alkali resistance, corrosion resistance and abrasion resistance and is not prone to ageing and durable as the seal gasket is sulfidized.

Description

technical field [0001] The invention relates to a sealing material, in particular to a carbon fiber-coated sealing gasket and a preparation method thereof. Background technique [0002] In the prior art, the application number is CN200910094494.3 The Chinese invention patent titled "A Method for Preparing Sheets for Sealing Gaskets" relates to a method for manufacturing sealing gaskets, especially for sealing gaskets that do not contain asbestos fibers The invention relates to a method for preparing a sheet material for a gasket, and relates to the field of sealing materials. The main components of the sheet material in this invention are mineral wool fiber, cellulose fiber, aromatic polyfiber, rubber binder and kaolin, mixed into an aqueous dispersion system, gradually dehydrated into layers by papermaking technology, and then compressed , drying and vulcanization, and made into finished sheet products. The sealing gasket made of this board has the same tensile strength, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/10C08L61/14C08L21/00C08K13/04C08K3/38C08K3/04C08K7/14F16J15/00
CPCC08L71/10C08L61/14C08L2205/03C08L2205/16F16J15/00
Inventor 钱华钱忠标史玉庆余淑莉钱家蓉史睿阳
Owner DONGTAI HUAYANG GLASS FIBER
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