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Preparation method of nickel alloy 200-micrometer coating containing titanium boride

A technology of titanium boride and nickel alloy, which is applied in metal material coating process, coating, fusion spraying, etc., can solve problems such as cracking, and achieve the effects of low melting point, high hardness and excellent spray weldability

Active Publication Date: 2016-03-02
SHENYANG LIGONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insufficient plasma spraying is that when the sprayed layer is thick, cracking can occur

Method used

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  • Preparation method of nickel alloy 200-micrometer coating containing titanium boride
  • Preparation method of nickel alloy 200-micrometer coating containing titanium boride
  • Preparation method of nickel alloy 200-micrometer coating containing titanium boride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of preparation method of the nickel alloy 200um coating that contains titanium boride, concrete steps are as follows:

[0037] 1. Use 240 on the surface of the shaft steel (35CrMo) workpiece successively # Grinding with sandpaper, and then sandblasting;

[0038] 2. Take metal nickel powder, metal cobalt powder, metal molybdenum powder and metal chromium powder and mix uniformly in proportion to configure alloy powder, wherein each component is calculated by mass percentage: metal chromium powder 15%, metal cobalt powder 12%, titanium boride Powder 6% and metal nickel powder 67%; alloy powder particle size: metal cobalt powder 150-320 mesh, titanium boride powder 150-320 mesh, metal chromium powder 150-320 mesh and metal nickel powder 150-320 mesh.

[0039]3. Spray a layer of alloy layer on the heat-treated workpiece surface with the prepared alloy powder by plasma spraying method. The process parameters of plasma spraying are: working voltage 50V, working curren...

Embodiment 2

[0041] A kind of preparation method of the nickel alloy 200um coating that contains titanium boride, concrete steps are as follows:

[0042] 1. Use 240 on the surface of the shaft steel (35CrMo) workpiece successively # Grinding with sandpaper, and then sandblasting;

[0043] 2. Take metal nickel powder, metal cobalt powder, metal molybdenum powder and metal chromium powder to configure alloy powder in proportion, wherein each component is calculated by mass percentage: metal chromium powder 12%, metal cobalt powder 6%, titanium boride powder 15% The rest is metal nickel powder; the particle size of alloy powder is: metal cobalt powder 150-320 mesh, titanium boride powder 150-320 mesh, metal chromium powder 150-320 mesh and metal nickel powder 150-320 mesh.

[0044] 3. Spray a layer of alloy layer on the surface of the treated workpiece with the prepared alloy powder by plasma spraying. The process parameters of plasma spraying are: working voltage 50V, working current 550A, ...

Embodiment 3

[0046] A kind of preparation method of the nickel alloy 200um coating that contains titanium boride, concrete steps are as follows:

[0047] 1. Use 240 on the surface of the shaft steel (35CrMo) workpiece successively # Grinding with sandpaper, and then sandblasting;

[0048] 2. Take metal nickel powder, metal cobalt powder, metal molybdenum powder and metal chromium powder to configure alloy powder in proportion, wherein each component is calculated by mass percentage: metal chromium powder 12%, metal cobalt powder 6%, titanium boride powder 15% The rest is metal nickel powder; the particle size of alloy powder is: metal nickel powder 320 mesh, metal cobalt powder 320 mesh, metal chromium powder 320 mesh and metal nickel powder 320 mesh;

[0049] 3. Spray a layer of alloy layer on the surface of the treated workpiece with the prepared alloy powder by plasma spraying. The process parameters of plasma spraying are: working voltage 50V, working current 550A, main gas (Ar) 48 / L ...

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Abstract

The invention discloses a preparation method of a nickel alloy 200-micrometer coating containing titanium boride. The method comprises the steps that firstly, heat treatment is carried out on the surface of a metal workpiece; then, various kinds of raw material powder are taken to prepare alloy powder according to the proportion; and finally, a plasma spraying method is adopted to spray an alloy layer on the surface of the workpiece. The method has the advantages that the method is simple, raw materials are easy to obtain, the comprehensive performance is good, and the application is wide.

Description

technical field [0001] The invention relates to the technical field of protection, in particular to a method for preparing a nickel alloy 200um coating containing titanium boride. Background technique [0002] Plasma spraying is carried out by using plasma arc, which is a compression arc. Compared with free arc, its arc column is thinner, its current density is higher, and its gas ionization degree is higher, so it has the characteristics of high temperature, concentrated energy, and good arc stability. . Plasma spraying has a flat and smooth coating, which can precisely control the thickness; the coating has low porosity and high bonding degree, the coating porosity can be controlled at 1%-10%, and the bonding strength can reach 60-70MPa; coating oxides and impurities Compared with electroplating, electric brushing, carburizing, and nitriding, the plasma sprayed coating is thicker, harder, and more anti-corrosion effect; the spraying process has little thermal impact on th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/134C23C4/06
Inventor 陈卓君董浩存李柏姝吴静朱巍巍黄志伟
Owner SHENYANG LIGONG UNIV
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