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A kind of bonded solid lubricating coating and preparation method thereof

A technology of solid lubrication and coating, which is applied in the direction of coating, etc., can solve the problems of shortened service life, limited application range and limited life of solid lubricant coating, and achieve the effect of reducing friction coefficient, widening application range and prolonging service life

Inactive Publication Date: 2017-11-17
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the disadvantages of solid lubricating coatings compared to lubricating oils and greases is limited life, especially under heavy loads and high speeds, the life of molybdenum disulfide solid lubricating coatings will be greatly shortened
[0003] Chinese Patent Application No. 201510003052.9 discloses a bonded solid lubricating coating, which is composed of epoxy resin, curing agent, polytetrafluoroethylene, molybdenum disulfide and fluorocarbon surfactant, and the fluorocarbon surfactant used in it is The agent is a non-ionic surfactant, and epoxy resin is used as a binder to make the mixed powder of molybdenum disulfide and polytetrafluoroethylene adhere to the friction surface to form a solid lubricating coating. The curing agent is polyamide, but it is heavy Short life under high-speed loading limits its application range

Method used

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  • A kind of bonded solid lubricating coating and preparation method thereof
  • A kind of bonded solid lubricating coating and preparation method thereof
  • A kind of bonded solid lubricating coating and preparation method thereof

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preparation example Construction

[0048] The preparation method of bonding type solid lubricating coating of the present invention comprises the following steps:

[0049] a. Mix artificially synthesized nano-hydroxymagnesium silicate powder or natural serpentine powder with molybdenum disulfide powder according to the ratio to prepare a composite powder, then add the composite powder to a certain amount of diluent to prepare a mixed solution;

[0050] b. Add the binder and curing agent into the mixed solution prepared in step a according to the ratio, and stir magnetically for 3-10 minutes, and the preparation process of the bonded solid lubricating coating is completed.

Embodiment 1

[0052] The bonded solid lubricating coating of this embodiment includes the following components in weight percentage: 88% of molybdenum disulfide powder, 5% of natural serpentine powder, 5% of E51 epoxy resin, and 2% of W93 curing agent.

[0053] The preparation method of the bonding type solid lubricating coating of the present embodiment comprises the following steps:

[0054] a, at first, with high-speed ball mill with natural serpentine ball mill 1h; Add a certain amount of oleic acid to it and mix, obtain the required natural serpentine powder; Then mix 5% natural serpentine powder with 88% The molybdenum sulfide powder is mixed to obtain a composite powder, and then the composite powder is added into a certain amount of absolute ethanol to obtain a mixed solution; wherein, the quality of oleic acid is 1.5% of the natural serpentine quality; the composite powder and The mass ratio of absolute ethanol is 1:8.

[0055]b. Add 5% of E51 epoxy resin and 2% of W93 curing agen...

Embodiment 2

[0057] The bonded solid lubricating coating of this embodiment includes the following components in weight percentage: 84.5% of molybdenum disulfide powder, 10% of natural serpentine powder, 4% of E54 epoxy resin, and 1.5% of modified fatty amine.

[0058] The preparation method of the bonding type solid lubricating coating of the present embodiment comprises the following steps:

[0059] a, at first, with high-speed ball mill with natural serpentine ball mill 1.5h; Add a certain amount of oleic acid to it and mix, promptly get required natural serpentine powder; Then mix 10% natural serpentine powder with 84.5% Molybdenum disulfide powder is mixed to obtain a composite powder, and then the composite powder is added to a certain amount of absolute ethanol to obtain a mixed solution; wherein, the quality of oleic acid is 0.5% of the quality of natural serpentine; the composite powder The mass ratio with absolute ethanol is 1:7.

[0060] b. Add 4% E54 epoxy resin and 1.5% modif...

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Abstract

The present invention relates to the technical field of solid lubricants, in particular to a bonded solid lubricant coating, which comprises the following components in weight percent: 58% to 92% of molybdenum disulfide powder, 5% to 35% of modified ceramic powder, viscose Binder 2% to 5%, curing agent 1% to 2%. The bonded solid lubricating coating of the present invention adds natural serpentine powder or artificially synthesized nano-hydroxymagnesium silicate powder as an additive to molybdenum disulfide solid lubricant to form a composite powder, which can prolong the molybdenum disulfide lubricating coating. The service life under heavy load and high speed condition can broaden the application range of molybdenum disulfide lubricating coating and improve the reliability of mechanical equipment.

Description

technical field [0001] The invention relates to the technical field of solid lubricants, in particular to a bonded solid lubricant coating and a preparation method thereof. Background technique [0002] Molybdenum disulfide solid lubricating coating is widely used in mechanical equipment that is not easy to use lubricating oil or grease, especially in mechanical equipment in the field of aerospace vehicles, molybdenum disulfide solid lubricating coating has an irreplaceable important role. Compared with lubricating oil and grease, one of the disadvantages of solid lubricating coatings is their limited life, especially under heavy load and high speed conditions, the life of molybdenum disulfide solid lubricating coatings will be greatly shortened. [0003] Chinese Patent Application No. 201510003052.9 discloses a bonded solid lubricating coating, which is composed of epoxy resin, curing agent, polytetrafluoroethylene, molybdenum disulfide and fluorocarbon surfactant, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/12
Inventor 常秋英乔娇飞
Owner BEIJING JIAOTONG UNIV