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Metal gasket surface treating agent for preventing adhesion

A technology of surface treatment agent and metal gasket, applied in the direction of coating, polyamide coating, wax coating, etc., can solve the problems of flange sticking, affecting sealing performance, etc., achieve good applicability, solve sealing problems, Effects that are handled in a simple way

Pending Publication Date: 2022-03-01
长春蓝天密封技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a metal gasket surface treatment agent for preventing adhesion, which solves the problem that the engine cylinder head metal fluorine rubber gasket in the prior art is easy to stick to the flange under the action of temperature and pressure, which affects the sealing performance The problem

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A metal gasket surface treatment agent for preventing adhesion, wherein 30-35 parts by weight of absolute ethanol is added to 100 parts by weight of the surface treatment agent, and the surface treatment agent is a colorless milky white liquid;

[0022] In this embodiment: after the surface treatment agent is mixed with absolute ethanol to remove ionized water, the surface treatment agent is formed into a film.

Embodiment 2

[0024] A metal pad surface treatment agent for preventing adhesion, wherein, 30-35 parts by weight of absolute ethanol is added to 100 parts by weight of the surface treatment agent, and the surface treatment agent is a colorless milky white liquid, and the surface treatment agent is calculated by weight percentage Divided into: hydroxy silicone oil 50-80%, polyamide wax 10-40%, polyethylene wax or liquid paraffin 5-10%;

[0025] In this embodiment: by using colorless, transparent and odorless hydroxy silicone oil, the structure between the surface treatment agent and the fluorine-containing rubber coating can be effectively improved, the performance of the fluorine-containing rubber coating can be improved, and the relationship between the surface treatment agent and the fluorine-containing rubber coating can be improved. Stability between coats;

[0026] By using a small amount of polyamide wax, a strong network structure is formed, which has excellent thixotropic properties...

Embodiment 3

[0029] A metal pad surface treatment agent for preventing adhesion, wherein, 30-35 parts by weight of absolute ethanol is added to 100 parts by weight of the surface treatment agent, and the surface treatment agent is a colorless milky white liquid, and the surface treatment agent is calculated by weight percentage Divided into: hydroxy silicone oil 80%, polyamide wax 10%, polyethylene wax or liquid paraffin 10%;

[0030] In this embodiment: after 80% of hydroxyl silicone oil, 10% of polyamide wax, polyethylene wax or liquid paraffin 10% are mixed, centrifuged and stirred for 30min, the surface treatment agent of milky white liquid is formed, wherein the stability of fluorine-containing rubber coating and The anti-stick performance of the metal gasket is even better.

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PUM

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Abstract

The invention relates to the technical field of metal gasket surface treating agents, in particular to an anti-adhesion metal gasket surface treating agent, and solves the problem that in the prior art, a metal fluorine-containing rubber gasket of an engine cylinder cover is easily adhered to a flange under the action of temperature and pressure, and the sealing performance is affected. According to the anti-adhesion metal gasket surface treating agent, 30-35 parts by weight of absolute ethyl alcohol is added into 100 parts by weight of the surface treating agent, and the surface treating agent is colorless milky white liquid. The colorless, transparent and odorless hydroxyl silicone oil is utilized, so that the performance of the fluorine-containing rubber coating can be improved, and the stability between the surface treating agent and the fluorine-containing rubber coating is improved; the polyamide wax has very good strength and heat resistance and good stability; by means of polyethylene wax or liquid paraffin, the situation that the metal rubber gasket and the flange adhere to each other can be greatly reduced, and the sealing performance problem of the engine cylinder cover can be well solved.

Description

technical field [0001] The invention relates to the technical field of metal gasket surface treatment agents, in particular to a metal gasket surface treatment agent for preventing adhesion. Background technique [0002] At present, metal material sealing gaskets are more and more widely used in accordance with the requirements of environmental protection regulations, mainly used in aerospace, weaponry, petrochemical, refrigeration and air conditioning, metallurgical power, mining, automobile engines, motorcycle engines, small general-purpose gasoline engines and other industrial seals, especially automotive engine cylinder head gaskets, but under the influence of temperature and pressure, the fluorine-containing rubber coating surface of the existing cylinder head metal gaskets is easy to stick to the flange surface, resulting in metal gaskets containing The deformation of the fluororubber coating affects the sealing between the fluororubber coating of the metal gasket and ...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D177/00C09D123/06C09D191/06C09D7/65C09D7/45
CPCC09D183/04C09D7/65C09D7/45C08L77/00C08L23/06C08L91/06
Inventor 李牟陈军娄秀冬姜永香徐岩马克尧
Owner 长春蓝天密封技术开发有限公司
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