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High-temperature coating method of graphene anti-corrosion layer of copper alloy composite material

A technology of composite materials and copper alloys, which is applied in the direction of metal material coating process, coating, gaseous chemical plating, etc., can solve the problems such as the difficulty of graphene coating, field and quantity limitations, easy softening and falling off, etc. to improve anti-corrosion requirements. Achieve the effects of strong anti-corrosion performance, continuous performance, stable material, and remarkable high-temperature resistance

Inactive Publication Date: 2020-04-10
中国东方电气集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The pure copper tubes used in the above schemes are greatly limited in their application fields and quantities, while copper alloys are used in a wider range of fields and in larger quantities, and compared with pure copper, there are many other metals in them. Increased its anti-corrosion requirements and the difficulty of graphene coating
The publication date is August 11, 2017, and the Chinese invention patent document with the publication number CN107034498A discloses electroplating copper on the surface of stainless steel after electroplating nickel, and then chemical vapor deposition of graphene on the surface, which is used for industrial grounding grid stainless steel anticorrosion , the process requires two layers of metal plating, and the steps are cumbersome
The publication date is September 21, 2018. The publication number is CN 108559346 A. The Chinese invention patent document discloses the use of water-based acrylic resin as an adhesive to prepare graphene coatings. The publication date is August 7, 2018. The publication number is CN 108373812 A The Chinese patent literature discloses the use of dimethylaminoethyl methacrylate to prepare graphene coatings. In such technical solutions, additional adhesives are required, and these polymer adhesives are easy to soften and fall off at high temperatures.

Method used

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  • High-temperature coating method of graphene anti-corrosion layer of copper alloy composite material
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  • High-temperature coating method of graphene anti-corrosion layer of copper alloy composite material

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Embodiment 1

[0030] A high-temperature coating method of a graphene anticorrosion layer of a copper alloy composite material, the steps are as follows:

[0031] (1) Pre-treatment of copper alloy coating:

[0032] Put the BFE10-1-1 copper alloy sheet into acetone and ultrasonically vibrate for 5 minutes to clean its surface and dry it with nitrogen, then put it into deionized water and ultrasonically vibrate for 5 minutes to clean its surface and dry it with nitrogen;

[0033] Soak in 2 mol / L dilute hydrochloric acid for 10 minutes, then soak in deionized water for 10 minutes and dry;

[0034] The surface was cleaned by ultrasonic vibration in acetone for 5 min and dried with nitrogen gas.

[0035] (2) High temperature coating of graphene anti-corrosion coating:

[0036] Put the treated copper alloy sheet into a sealed tube furnace, and pass in hydrogen gas, the gas flow rate is 500 sccm, the pressure is 0.5 Pa, heated from room temperature to 700 ° C, the heating rate is 5 ° C / min, and...

Embodiment 2

[0039] This embodiment adopts the same preparation method as that of Embodiment 1, the difference being that the temperature of graphene high-temperature coating is 1000°C.

Embodiment 3

[0041] This embodiment adopts basically the same preparation method as that of Embodiment 1, except that the temperature of graphene high-temperature coating is 1200°C.

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Abstract

The invention discloses a high-temperature coating method of a graphene anti-corrosion layer of a copper alloy composite material. According to the method, a copper alloy is adopted as a base material, the surface of the copper alloy is cleaned, graphene coats the surface of the copper alloy under a high-temperature condition (700 DEG C-1200 DEG C) through a vapor deposition method, and the graphene anti-corrosion layer is formed. According to the method, the graphene anti-corrosion layer is formed on the surface of stainless steel through a specific high-temperature coating, and an additionaladhesive is not needed, so that the high-temperature-resistant performance, the oxidation resistance and the corrosion-resistant effect of the copper alloy composite material are remarkable.

Description

technical field [0001] The invention relates to a composite material preparation process based on copper alloy and graphene, in particular to a high-temperature coating method for a graphene anticorrosion layer of a copper alloy composite material. Background technique [0002] Copper alloys are widely used as heat transfer materials in power stations, air conditioners, and chemical equipment, bringing huge economic benefits. However, copper alloys have limited corrosion resistance and are easily corroded in alkaline environments. How to improve the corrosion resistance of the copper alloy tube surface and prepare a new type of copper alloy material with super corrosion resistance has become an urgent problem to be solved. As a stable two-dimensional carbon material, graphene is only one to several atoms thick, and defect-free graphene is impermeable to water and gas. Coating graphene on the surface of copper alloy can isolate the copper alloy and the liquid on the surface,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/26C23C16/02C23C16/44
CPCC23C16/0227C23C16/26C23C16/44
Inventor 张中伟杨大帅何坪
Owner 中国东方电气集团有限公司
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