A composite metal coating

A composite metal coating and coating technology, which is applied in the direction of metal material coating process, metal layered products, coating, etc., can solve the problems of stress concentration, crack sensitivity, small friction coefficient, etc.

Active Publication Date: 2016-12-07
深圳市发科达表面处理技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most ceramic materials have the characteristics of high melting point, high hardness, high stiffness, high chemical stability, good insulation, small thermal expansion coefficient, small friction coefficient and no ductility, but due to the brittleness of ceramics, plastic deformation ability, thermal shock resistance And poor fatigue resistance, sensitive to stress concentration and cracks, so that the use of ceramics as mechanical structural materials has been greatly limited
As the requirements for material properties become more and more stringent, it is difficult for monolithic metal materials to meet the requirements of some special working conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A kind of composite metal coating, comprises substrate and coating, and its preparation process comprises the steps:

[0013] 1) Ingredients: Mix 15% nickel, 70% copper, 3% carbon, 4% silicon and 8% yttrium oxide to make a coating; 2) Surface treatment of stainless steel substrate: Polish the surface of the stainless steel substrate and degrease with acetone, Then wash and dry with absolute ethanol; 3) flow coating: pour the above-mentioned coating on the stainless steel substrate, and make the coating flow evenly on the surface of the substrate to obtain a thin and uniform coating, the thickness of which is 2mm; 4) Coating firing: the prepared coating is dried in an oven at 120°C, and then the coating is fired in a high-temperature electric furnace to form the composite metal coating.

Embodiment 2

[0015] A kind of composite metal coating, comprises substrate and coating, and its preparation process comprises the steps:

[0016] 1) Ingredients: Mix and grind 20% nickel, 65% copper, 5% carbon, 8% silicon and 2% yttrium oxide to prepare the coating; 2) Surface treatment of stainless steel substrate: Polish the surface of the stainless steel substrate and degrease with acetone, Then wash and dry with absolute ethanol; 3) flow coating: pour the above-mentioned paint on the stainless steel substrate, and make the paint flow evenly on the surface of the substrate to obtain a thin and uniform coating, the thickness of which is 3mm; 4) Coating firing: the prepared coating is dried in an oven at 140°C, and then the coating is fired in a high-temperature electric furnace to form the composite metal coating.

[0017] The invention discloses a composite metal coating, which has a simple preparation method. The stainless steel base material is coated with a coating made of nickel, co...

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PUM

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Abstract

The invention discloses a novel composite metal coating. The novel composite metal coating comprises a substrate and a coating; the preparation process of the novel composite metal coating comprises the following steps: 1) mixing the following raw materials of the novel composite metal coating in percentage by weight: 15-20% of nickel, 65-70% of copper, 3-5% of carbon, 4-8% of silicon and 2-8% of yttrium oxide; grinding the raw materials together to obtain a paint; 2) treating the surface of the substrate; 3) flow painting, namely pouring the paint on the substrate and enabling the paint to flow evenly on the surface of the substrate to obtain the coating even in thickness; and4) firing the coating. In this way, the novel composite metal coating has the strength and tenacity of metals and the advantages such as high temperature resistance, high temperature oxidization resistance, wear resistance and corrosion resistance of ceramic materials.

Description

technical field [0001] The invention relates to the field of metal coatings, in particular to a composite metal coating. Background technique [0002] Coating refers to a thin layer of material that adheres to a certain base material to play a special role and has a certain bonding strength with the base material. It can overcome certain defects of the matrix material and improve its surface properties, such as optical properties, electrical properties, erosion and corrosion resistance, wear resistance and mechanical strength, etc. It belongs to a thin film with a support. [0003] Most ceramic materials have the characteristics of high melting point, high hardness, high stiffness, high chemical stability, good insulation, small thermal expansion coefficient, small friction coefficient and no ductility, but due to the brittleness of ceramics, plastic deformation ability, thermal shock resistance And poor fatigue resistance, sensitive to stress concentration and cracks, so t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/00
CPCC22C9/06C22C32/001C23C24/085
Inventor 李烈熊
Owner 深圳市发科达表面处理技术有限公司
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