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Self-lubricating wear-resistant coating and preparation process thereof

A wear-resistant coating and self-lubricating technology, which is applied in coatings, polyester coatings, epoxy resin coatings, etc., can solve problems such as cracks and metal coating peeling off, so as to improve the degree of wear resistance, improve wear resistance, The effect of ensuring integrity

Active Publication Date: 2021-06-25
PUYANG SHUNKANG PETROLEUM ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The function of the coating varies depending on the coating material used. The coating can be classified according to the function, which can be generally divided into wear resistance, anti-aging, anti-corrosion, etc. A single aluminum alloy is used as the substrate. In order to increase its lubricating performance, it is often necessary to add a large amount of solid lubricant. The main component of the solid lubricant is a mixture of various soft metals. It is sprayed, but the coating obtained by spraying using the traditional process Cracks will appear in the coating under the condition of long-term use, which will cause the metal coating to fall off, so it is particularly important to invent a self-lubricating wear-resistant coating and its preparation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A self-lubricating wear-resistant coating, comprising an aluminum alloy substrate and a coating, the coating includes an organic coating and a metal coating, a layer of metal coating is coated on the aluminum alloy substrate, and a layer of the above-described metal coating is coated on the metal coating Organic coating, described organic coating comprises main coating and curing agent, and each component raw material of described main coating is as follows, by weight, comprises 20 parts of epoxy resins, 5 parts of alkyd resins, 0.2 parts of pH regulators, dispersing 0.2 part of anti-oxidant, 0.1 part of antioxidant, the metal coating includes silver, zinc, tin, and the curing agent is trimethyldiamine, triethylenetetramine, p-toluenesulfonic acid.

[0034] The antioxidant is a mixture of 2,6-di-tert-butyl-p-cresol and phosphite.

[0035] The alkyd resin is prepared from lauric acid, castor oil, trimethylolpropane and glycerin.

[0036] The pH regulator is hydrochloric...

Embodiment 2

[0045] A self-lubricating wear-resistant coating, comprising an aluminum alloy substrate and a coating, the coating includes an organic coating and a metal coating, a layer of metal coating is coated on the aluminum alloy substrate, and a layer of the above-described metal coating is coated on the metal coating Organic coating, described organic coating comprises main coating and curing agent, and each component raw material of described main coating is as follows, by weight, comprises 25 parts of epoxy resins, 7 parts of alkyd resins, 0.2 parts of pH regulators, dispersing 0.2 part of anti-oxidant, 0.2 part of antioxidant, described metal coating comprises silver, zinc, tin, and described curing agent is trimethyldiamine, triethylenetetramine, p-toluenesulfonic acid.

[0046] The antioxidant is a mixture of 2,6-di-tert-butyl-p-cresol and phosphite.

[0047] The alkyd resin is prepared from lauric acid, castor oil, trimethylolpropane and glycerin.

[0048] The pH regulator is...

Embodiment 3

[0057] A self-lubricating wear-resistant coating, comprising an aluminum alloy substrate and a coating, the coating includes an organic coating and a metal coating, a layer of metal coating is coated on the aluminum alloy substrate, and a layer of the above-described metal coating is coated on the metal coating Organic coating, described organic coating comprises main coating and curing agent, and each component raw material of described main coating is as follows, by weight, comprises 25 parts of epoxy resins, 7 parts of alkyd resins, 0.3 parts of pH regulators, dispersing 0.3 part of anti-oxidant, 0.3 part of antioxidant, described metallic paint comprises silver, zinc, tin, and described curing agent is trimethyldiamine, triethylenetetramine, p-toluenesulfonic acid.

[0058] The antioxidant is a mixture of 2,6-di-tert-butyl-p-cresol and phosphite.

[0059] The alkyd resin is prepared from lauric acid, castor oil, trimethylolpropane and glycerin.

[0060] The pH regulator i...

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PUM

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Abstract

The invention discloses a self-lubricating wear-resistant coating and a preparation process thereof. The self-lubricating wear-resistant coating comprises an aluminum alloy substrate and a coating. The coating comprises organic paint and metallic paint. The upper portion of the aluminum alloy substrate is coated with a layer of metallic paint, and the upper portion of the metallic paint is coated with a layer of organic paint. The organic paint comprises main paint and a curing agent. The main paint comprises epoxy resin, alkyd resin, a pH regulator, a dispersing agent and an antioxidant. The metallic paint comprises silver, zinc and tin. The curing agent is trimethyl diamine, triethylene tetramine and p-toluenesulfonic acid. A metal coating and an organic coating are used in cooperation to prepare a composite coating, various properties of an aluminum alloy substrate can be improved, silver, tin and zinc are matched according to a certain proportion, the technology is changed to a certain degree, the wear resistance of the coating is greatly improved, and the coating has certain self-lubricating capacity.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy coatings, in particular to a self-lubricating wear-resistant coating and a preparation process thereof. Background technique [0002] Aluminum alloy is an alloy made of aluminum as the main raw material by adding an appropriate amount of other metals. It is a common light metal material. Due to its low density, strong mechanical properties, and good electrical conductivity and corrosion resistance, it is used in aerospace , Marine industry, chemical industry and metal packaging industry have a wide range of applications. [0003] The function of the coating varies with the coating material used. According to the function classification, the coating can be generally divided into wear resistance, anti-aging, anti-corrosion functions, etc., with a single aluminum alloy as the base, in order to increase its lubricating performance, often need A large amount of solid lubricant is added. The mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D167/08C09D7/48C09D1/00
CPCC09D163/00C09D7/48C09D1/00C08L67/08C08K5/13C08K5/524
Inventor 刘晓东
Owner PUYANG SHUNKANG PETROLEUM ENG TECH
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