Preparation method of titanium-based laser-cladding coating

A technology of laser cladding and cladding layer, which is applied in the direction of coating, metal material coating process, etc., can solve the problems of easy cracks and pores, and achieve good cladding effect

Inactive Publication Date: 2019-12-27
OKUMTEC TECH WENZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a preparation method of a titanium-based laser cladding coating to solve the problem that cracks and pores are easily produced in the formed cladding layer structure proposed in the above-mentioned background technology

Method used

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Examples

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Effect test

Embodiment 1

[0032] The present invention proposes a preparation method of a titanium-based laser cladding coating, comprising the following steps:

[0033] S1: Grind and clean the surface of the metal substrate so that dirt will not affect the formation of the cladding layer. The steps of polishing and cleaning:

[0034] (1) Roughly grind the surface of the metal substrate with coarse sandpaper. After grinding, finely grind the surface of the metal substrate with fine sandpaper until the surface of the metal substrate is smooth;

[0035] (2) Preheat the metal substrate to soften the surface of the metal substrate and facilitate cleaning of the bonded stolen goods;

[0036] (3) Use a grinding wheel to grind the surface of the metal substrate;

[0037] (4) Use a cleaning solution to clean the polished metal substrate, and dry it after cleaning. The cleaning solution is acetone;

[0038] S2: Mix the cladding coating powder according to a certain ratio, and then preheat the mixed raw materi...

Embodiment 2

[0051] The present invention proposes a preparation method of a titanium-based laser cladding coating, comprising the following steps:

[0052] S1: Grind and clean the surface of the metal substrate so that dirt will not affect the formation of the cladding layer. The steps of polishing and cleaning:

[0053] (1) Roughly grind the surface of the metal substrate with coarse sandpaper. After grinding, finely grind the surface of the metal substrate with fine sandpaper until the surface of the metal substrate is smooth;

[0054] (2) Preheat the metal substrate to soften the surface of the metal substrate and facilitate cleaning of the bonded stolen goods;

[0055] (3) Use a grinding wheel to grind the surface of the metal substrate;

[0056] (4) Use a cleaning solution to clean the polished metal substrate, and dry it after cleaning. The cleaning solution is acetone;

[0057] S2: Mix the cladding coating powder according to a certain ratio, and then preheat the mixed raw materi...

Embodiment 3

[0070] The present invention proposes a preparation method of a titanium-based laser cladding coating, comprising the following steps:

[0071] S1: Grind and clean the surface of the metal substrate so that dirt will not affect the formation of the cladding layer. The steps of polishing and cleaning:

[0072] (1) Roughly grind the surface of the metal substrate with coarse sandpaper. After grinding, finely grind the surface of the metal substrate with fine sandpaper until the surface of the metal substrate is smooth;

[0073] (2) Preheat the metal substrate to soften the surface of the metal substrate and facilitate cleaning of the bonded stolen goods;

[0074] (3) Use a grinding wheel to grind the surface of the metal substrate;

[0075] (4) Use a cleaning solution to clean the polished metal substrate, and dry it after cleaning. The cleaning solution is acetone;

[0076] S2: Mix the cladding coating powder according to a certain ratio, and then preheat the mixed raw materi...

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Abstract

The invention discloses a preparation method of a titanium-based laser-cladding coating. The preparation method of the titanium-based laser-cladding coating comprises the following steps of polishingand finishing the surface of a metal matrix; mixing coating powder prepared to be cladded according to a certain proportion, and then preheating the mixed raw material powder; uniformly applying the preheated powder onto the surface of the metal matrix; carrying out laser cladding on the preset powder, and simultaneously melting the preset powder and a surface layer of the metal matrix; forming alaser-cladding coating on the surface of the matrix; adopting a carbon dioxide transverse laser beam for cladding; carrying out inert gas shielding on the surface of the metal matrix, wherein the laser power is 3.2 to 3.8kW, the scanning speed is 450 to 650mm/min, the spot diameter is 4 to 6mm, and the thickness of the cladding layer is 0.5 to 0.9mm; and then carrying out plasma laser cladding, wherein the laser power is 1500W, and the light speed movement speed is 10mm/s. According to the preparation method of the titanium-based laser-cladding coating provided by the invention, after throughplasma laser cladding, no cracks or air holes is generated on the formed cladding layer, so that a cladding effect is good.

Description

technical field [0001] The invention relates to the technical field of laser cladding, in particular to a preparation method of a titanium-based laser cladding coating. Background technique [0002] Titanium-based alloys can still maintain excellent comprehensive properties such as high-temperature strength, high-temperature hardness, high-temperature wear resistance, high-temperature oxidation resistance and thermal fatigue resistance at high temperatures. Among them, laser cladding, also known as laser cladding or laser cladding, is to add the required cladding materials on the surface of the substrate, and use high-energy-density laser beams to rapidly fuse the cladding powder and the thin layer on the substrate surface. At present, laser cladding is mainly used to coat or repair various metal parts to significantly improve the wear resistance, corrosion resistance, heat resistance and oxidation resistance of the base surface. [0003] However, due to the rapid heating a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/103
Inventor 包仲南徐泷黄伟马德高陈昊玉晓波
Owner OKUMTEC TECH WENZHOU CO LTD
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