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Seal coating for metal cylinder sealing gasket and manufacturing process of seal coating

A technology for sealing coatings and cylinder gaskets, applied in conductive coatings, coatings, etc., can solve problems such as pulling and peeling of gaskets, and achieve the effects of good conductivity, fast heat dissipation, and good compression deformation characteristics.

Inactive Publication Date: 2018-01-09
舟山海山机械密封材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides an environmentally friendly sealing coating for metal cylinder gasket gaskets and its manufacturing process which can effectively solve the problem of peeling and roughening of gaskets during the stamping process, and simultaneously improve the performance of cylinder gaskets.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: a kind of sealing paint for metal cylinder head gasket gasket comprises following components by mass parts, 50 parts of water-emulsion graphite, 21 parts of water-based polyacrylonitrile synthetic latex, 10 parts of water-emulsion, The thickener is calculated as auxiliary materials, wherein 50 parts of water-emulsion graphite includes a mixture of water-based pure graphite milk and water-based graphene milk, and 10 parts of water-emulsion includes 3 parts of thickener, 2 parts of defoamer, surface 4 parts of modifying agent, 3 parts of thickener in water emulsion include 1 part of sodium hydroxymethyl cellulose and 1 part of xanthan gum by parts by mass; 2 parts of defoamer include polysiloxane amphiphile by parts by mass 1 part of permanent block copolymer, 1 part of hydroxyl silicone oil, 2 parts of silica mixture; 4 parts of surface modifiers include 1 part of sodium dodecyl sulfonate and 1 part of sodium perfluorononoxybenzene sulfonate by mass parts P...

Embodiment 2

[0021] A kind of sealing paint for metal cylinder gasket gasket, comprising the following components by mass parts, 63 parts of water-emulsion graphite, 15 parts of water-based polyacrylonitrile synthetic latex, 15 parts of water-emulsion, thickener according to auxiliary materials In total, 63 parts of water-emulsible graphite include a mixture of water-based pure graphite milk and water-based carbon black milk, and 15 parts of water-based emulsions include 8 parts of thickeners, 7 parts of defoamers, and surface modifiers in parts by mass. 6 parts, 8 parts of thickener in 63 parts of aqueous emulsions include 3 parts of hydroxymethyl cellulose sodium, 3 parts of xanthan gum by mass parts; 7 parts of antifoaming agents include polysiloxane amphiphilic embedded 3 parts of segment copolymer, 2 parts of hydroxyl silicone oil, 3 parts of silicon dioxide mixture; 6 parts of surface modifiers include 2 parts of sodium dodecylsulfonate and 3 parts of sodium perfluorononoxybenzenesulf...

Embodiment 3

[0029] A kind of sealing paint for metal cylinder gasket gasket, comprising the following components by mass parts, 70 parts of water-emulsion graphite, 11 parts of water-based polyacrylonitrile synthetic latex, 20 parts of water-emulsion, thickener according to auxiliary materials In total, 70 parts of water-emulsion graphite includes a mixture of water-based pure graphite milk, water-based graphene milk and water-based carbon black milk, and 20 parts of water-based emulsions include 15 parts of thickener and 12 parts of defoamer in parts by mass. 10 parts of surface modifier, 15 parts of thickener in 20 parts of water emulsion include 5 parts of sodium hydroxymethyl cellulose and 5 parts of xanthan gum by parts by mass; 12 parts of defoamer include polysilicon by parts by mass 5 parts of oxane amphiphilic block copolymer, 3 parts of hydroxy silicone oil, 5 parts of silicon dioxide mixture; 10 parts of surface modifiers include 3 parts of sodium dodecylsulfonate, perfluoronono...

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PUM

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Abstract

The invention discloses a seal coating for a metal cylinder sealing gasket and a manufacturing process of the seal coating. The seal coating comprises the following components in parts by mass: 50-70parts of aqueous emulsion graphite, 10-21 parts of butadiene-acrylonitrile latex and 10-20 parts of emulsion in water. With the adoption of the seal coating in the scheme, because a graphite matrix material has excellent high temperature resistance, excellent conductivity, fast heat dissipation, excellent self-lubricating and wear-resistant properties and excellent compressive deformation characteristic, the peeling and galling problems of the sealing gasket in the punching process can be well solved, and the quality problem of an engine cylinder gasket in the using process is improved. Moreover, the environmental influence caused by adoption of ester and benzene solvents in the original coating process can be avoided, and the seal coating has high environment friendliness.

Description

technical field [0001] The invention relates to the technical field of chemical materials, in particular to a sealing paint for a metal cylinder head gasket and a manufacturing process thereof. Background technique [0002] In recent years, rubber has been used as a coating material to coat metal substrates, and it is widely used in various fields of the national economy, such as aviation, machinery, petroleum, metallurgy, automobiles, etc., especially in equipment such as motor vehicles, instruments and meters, and oil pipelines. Plays an extremely important role in the sealing. The rubber coating on the metal surface is not only conducive to the sealing of the fluid flow channel, preventing the leakage of water, oil, gas or some special media, but also greatly reducing the tightening torque required for metal material sealing. At the same time, the rubber coating also acts as a shock absorber for the metal substrate, which greatly expands the application field of metal ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/65C09D5/24
Inventor 施中堂
Owner 舟山海山机械密封材料股份有限公司
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