Molybdenum disulfide coating and preparation method and application thereof

A technology of molybdenum disulfide and coating, which is applied in the direction of coating, liquid coating device on the surface, surface pretreatment, etc. It can solve the problem of not being able to have both heat resistance and wear resistance, and achieve both heat resistance And wear resistance, the effect of improving density

Inactive Publication Date: 2020-10-30
BEIJING TIANRENDAOHE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome that the existing triangular bracket surface treatment method cannot realize the improvement of the density of the coating and the bonding performance of the coating and the triangular bracket under the premise of simple operation, and the existence of coatings for surface treatment of the triangular bracket cannot be combined. The defects of heat resistance and abrasion resistance, and then provide a kind of molybdenum disulfide coating and its preparation method and application

Method used

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  • Molybdenum disulfide coating and preparation method and application thereof

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Effect test

Embodiment 1

[0034] This embodiment provides a surface treatment method for the triangular bracket in the powder metallurgy brake pads of a high-speed train, which includes the following steps:

[0035] 1) Preparation of molybdenum disulfide coating: add 3kg of phenolic resin to 97kg of absolute ethanol, stir and mix to obtain a phenolic resin in absolute ethanol solution, add 100kg of molybdenum disulfide to the phenolic resin in absolute ethanol solution, and then Then add 1 kg of graphite and stir well to obtain the molybdenum disulfide coating;

[0036] 2) Ultrasonic cleaning the surface of the triangle holder for 20 minutes to remove impurities on the surface of the triangle holder. After cleaning, put the triangle holder into the oven for preheating, the preheating temperature is 50℃, and the preheating time is 15min; When preheating, put the molybdenum disulfide paint described in step 1) into the spray gun, and after the preheating of the triangle holder is completed, take the triangle ...

Embodiment 2

[0039] This embodiment provides a surface treatment method for the triangular bracket in the powder metallurgy brake pads of a high-speed train, which includes the following steps:

[0040] 1) Preparation of molybdenum disulfide paint: add 2kg of phenolic resin to 95kg of absolute ethanol, stir and mix to obtain a phenolic resin in absolute ethanol solution, add 105kg of molybdenum disulfide to the phenolic resin in absolute ethanol solution, and then Then add 0.8 kg of boron nitride and stir fully to obtain the molybdenum disulfide coating;

[0041] 2) Ultrasonic cleaning the surface of the triangle holder for 20 minutes to remove impurities on the surface of the triangle holder. After cleaning, put the triangle holder into the oven for preheating, the preheating temperature is 45℃, and the preheating time is 20min; When preheating, put the molybdenum disulfide paint described in step 1) into the spray gun, and after the preheating of the triangle holder is completed, take the tri...

Embodiment 3

[0044] This embodiment provides a surface treatment method for the triangular bracket in the powder metallurgy brake pads of a high-speed train, which includes the following steps:

[0045] 1) Preparation of molybdenum disulfide coating: add 5kg of phenolic resin to 100kg of absolute ethanol, stir and mix to obtain a phenolic resin in absolute ethanol solution, add 95kg of molybdenum disulfide to the phenolic resin in absolute ethanol solution, and then Then add 1.1 kg of graphite and fully stir to obtain the molybdenum disulfide coating;

[0046] 2) Ultrasonic cleaning the surface of the triangle holder for 20 minutes to remove impurities on the surface of the triangle holder. After cleaning, put the triangle holder into the oven for preheating, the preheating temperature is 55℃, and the preheating time is 10min; When preheating, put the molybdenum disulfide paint described in step 1) into the spray gun, and after the preheating of the triangle holder is completed, take the triang...

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Abstract

The invention relates to the field of powder metallurgy brake pad triangular support surface treatment, in particular to a molybdenum disulfide coating and a preparation method and application thereof. The molybdenum disulfide coating provided by the invention is prepared from the following raw materials in parts by weight: 95 to 105 parts of molybdenum disulfide, 2 to 5 parts of phenolic resin and 0.8 to 1.1 parts of a solid lubricant. According to the molybdenum disulfide coating provided by the invention, the molybdenum disulfide, the phenolic resin and the solid lubricant in specific partsby weight are matched with one another and are applied to a triangular support surface treatment process, so that the compactness of a coating layer of the coating and the bonding performance of thecoating layer and a triangular support can be effectively improved.

Description

Technical field [0001] The invention relates to the field of surface treatment of powder metallurgy brake disc tripods, in particular to a molybdenum disulfide paint and a preparation method and application thereof. Background technique [0002] The powder metallurgy brake pads of high-speed trains are mainly composed of steel back, triangle bracket and friction block. The triangle bracket is used to connect the steel back and the friction block. It belongs to the connecting piece. Under the complex working conditions of rail transit, especially for the speed of 350km / h For EMUs, the triangular brackets in the metallurgical brake pads need to have good strength, corrosion resistance and wear resistance. Surface treatment refers to a method of artificially forming a layer of coating on the surface of the substrate material that is different from the mechanical, physical and chemical properties of the substrate. The surface treatment of the triangular bracket can meet the required ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/65C09D7/61B05D3/00B05D3/02B05D7/16
CPCC09D1/00C09D7/65C09D7/61B05D7/16B05D3/0254B05D3/002B05D3/0218
Inventor 胡晨余程巍赵旭张振威骆亚涛马成龙
Owner BEIJING TIANRENDAOHE NEW MATERIAL CO LTD
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