Preparation method of abrasion-resistant coating of stainless steel base material

A technology for stainless steel and substrates, applied in metal material coating process, coating, molten plating, etc., can solve the problems of graphene agglomeration, long time consumption, complex coating solution preparation process and coating process, etc., to achieve The preparation method is simple, the price is cheap, and the effect of coating film thickness is controllable

Inactive Publication Date: 2017-02-01
HUIZHOU RES INST OF SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This patent uses graphene as an additive, but graphene will agglomerate, so it needs to be modified, and the preparation process and coating process of the composite coating solution are quite complicated and time-consuming

Method used

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  • Preparation method of abrasion-resistant coating of stainless steel base material
  • Preparation method of abrasion-resistant coating of stainless steel base material
  • Preparation method of abrasion-resistant coating of stainless steel base material

Examples

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Effect test

Embodiment 1

[0022] Example 1: The preparation method of the anti-wear coating is as follows: immerse the stainless steel substrate in an acetone solution and sonicate for 1 hour; 98% concentrated sulfuric acid and 30% hydrogen peroxide solution are made into an oxidizing agent at a volume ratio of 3:1 to the substrate Carry out oxidation, wash and dry after reacting for 90 minutes; make a solution according to the ratio of aminosilane coupling agent (about 1% by volume fraction), acetone (about 80% by volume fraction), and water (about 19% by volume fraction), after fully stirring Immerse the stainless steel substrate in it and let it stand for 1h. Then soak it in 50ml of 0.4mg / ml graphene oxide solution. The solution casting process is kept at a temperature of 110°C. After the graphene oxide is coated on the stainless steel substrate, it is graphitized, that is, the sample is placed in a vacuum In a drying oven, treat at 100°C for 60 minutes.

Embodiment 2

[0023] Example 2: The preparation method of the anti-wear coating is as follows: immerse the stainless steel substrate in an acetone solution for 1 h; 98% concentrated sulfuric acid and 30% hydrogen peroxide solution are made into an oxidizing agent at a volume ratio of 2:1 to the substrate Carry out oxidation, wash and dry after reacting for 60 minutes; make a solution according to the ratio of aminosilane coupling agent (about 1% by volume fraction), acetone (about 80% by volume fraction), and water (about 19% by volume fraction), after fully stirring Immerse the stainless steel substrate in it and let it stand for 1h. Then soak it in 50ml of 0.6mg / ml graphene oxide solution. The solution casting process is kept at a temperature of 110°C. After the graphene oxide is coated on the stainless steel substrate, it is graphitized, that is, the sample is placed in a vacuum In a drying oven, treat at 120°C for 45min.

Embodiment 3

[0024] Example 3: The preparation method of the anti-wear coating is as follows: immerse the stainless steel substrate in an acetone solution for 1 h; 98% concentrated sulfuric acid and 30% hydrogen peroxide solution are made into an oxidizing agent at a volume ratio of 7:3 to the substrate Carry out oxidation, wash and dry after reacting for 30 minutes; make a solution according to the ratio of aminosilane coupling agent (about 1% by volume fraction), acetone (about 80% by volume fraction), and water (about 19% by volume fraction), after fully stirring Immerse the stainless steel substrate in it and let it stand for 1h. Then soak it in 50ml of 0.8mg / ml graphene oxide solution. The solution casting process is kept at a temperature of 110°C. After the graphene oxide is coated on the stainless steel substrate, it is graphitized, that is, the sample is placed in a vacuum In a drying oven, treat at 150°C for 30min.

[0025] Finally, the CSM friction and wear tester was used to ch...

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Abstract

The invention discloses a preparation method of an abrasion-resistant coating of a stainless steel base material. The preparation method comprises the steps that (a) pretreatment, including ultrasonic cleaning, oxidation treatment and silane coupling agent treatment, is conducted on the stainless steel base material; (b) the surface of the treated stainless steel base material is coated with oxidized graphene through a solution casting method; and (c) graphitize treatment is conducted on the obtained oxidized graphene coating. The abrasion-resistant coating prepared through the preparation method has both the lubricating property of graphene and the excellent film formation property of oxidized graphene, the price is low, and the excellent abrasion-resistant property is achieved.

Description

technical field [0001] The invention relates to the field of anti-wear coatings, in particular to a preparation method of anti-wear coatings. Background technique [0002] At present, the components of the mechanical system will be subject to friction and wear during operation, which will eventually lead to changes in performance or even complete failure. Therefore, anti-wear treatment is required. [0003] Usually, anti-wear coatings are applied on the surface of metal components to enhance their anti-wear properties. Some anti-wear coatings use materials with strong anti-wear properties to improve the anti-wear properties of traditional coatings. Graphene nanomaterials have good properties, so they have become a research hotspot in recent years, but their research mainly focuses on the mechanical properties, mechanical properties, thermal properties and anti-corrosion properties of composite materials, while the application research on their friction properties is relativ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C6/00
CPCC23C6/00
Inventor 纪红兵晏金灿刘义
Owner HUIZHOU RES INST OF SUN YAT SEN UNIV
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