Powder for laser cladding, preparation method and application thereof

A laser cladding and powder technology, applied in transportation and packaging, metal processing equipment, coatings, etc., can solve the problems of insufficient surface hardness, strength and wear resistance of workpieces, and achieve improved adhesion, performance and wear resistance. Sex-enhancing effect

Inactive Publication Date: 2020-02-28
西安鑫精合智能制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problem of insufficient hardness, strength and wear resistance of the workpiece surface after laser cladding in the prior art, a powder for laser cladding and its preparation method and application are provided

Method used

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  • Powder for laser cladding, preparation method and application thereof
  • Powder for laser cladding, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A kind of powder for laser cladding, quality is 30kg, comprises metal powder and graphite powder, and described graphite powder is attached to the surface of described metal powder; In the mass meter of powder for laser cladding, described metal powder and described graphite The mass ratio of powder is 100:0.3.

[0058] The metal powder is selected from 316L stainless steel powder, which requires no hollow powder and a particle size of 65-200 μm. The graphite powder is high-purity graphite powder with a purity ≥ 99.9 wt%, a particle size of 1-50 μm, and a Mohs hardness of 1-2. Use the electron microscope to observe the adhesion effect of the powder for laser cladding, see the attached electron microscope picture figure 1 .

[0059] The preparation method of the above-mentioned powder for laser cladding comprises the following steps:

[0060] S1. Preliminary attachment: Weigh a certain proportion of metal powder and graphite powder, and stir and mix them mechanically ...

Embodiment 2

[0066] A kind of powder for laser cladding, quality is 30kg, comprises metal powder and graphite powder, and described graphite powder is attached to the surface of described metal powder; In the mass meter of powder for laser cladding, described metal powder and described graphite The mass ratio of powder is 100:0.3.

[0067] The metal powder is selected from 17-4PH stainless steel powder, which requires no hollow powder and a particle size of 65-200 μm. The graphite powder is high-purity graphite powder with a purity ≥ 99.9 wt%, a particle size of 1-50 μm, and a Mohs hardness of 1-2.

[0068] The preparation method of the above-mentioned powder for laser cladding comprises the following steps:

[0069] S1. Preliminary attachment: Weigh a certain proportion of metal powder and graphite powder, and stir and mix them mechanically to obtain metal powder with graphite powder initially attached.

[0070] S2. Preparation of powder for laser cladding: use an ultrasonic stirrer to ...

Embodiment 3

[0075] A kind of powder for laser cladding, quality is 30kg, comprises metal powder and graphite powder, and described graphite powder is attached to the surface of described metal powder; In the mass meter of powder for laser cladding, described metal powder and described graphite The mass ratio of powder is 100:1.

[0076] The metal powder is selected from 0Cr18Ni9 stainless steel powder, which requires no hollow powder and a particle size of 65-200 μm. The graphite powder is high-purity graphite powder with a purity ≥ 99.9 wt%, a particle size of 1-50 μm, and a Mohs hardness of 1-2.

[0077] The preparation method of the above-mentioned powder for laser cladding comprises the following steps:

[0078] S1. Preliminary attachment: Weigh a certain proportion of metal powder and graphite powder, and stir and mix them mechanically to obtain metal powder with graphite powder initially attached.

[0079] S2. Prepare powder for laser cladding: use an ultrasonic stirrer to stir ag...

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Abstract

The invention relates to the technical field of laser surface treatment, and discloses a powder for laser cladding and a preparation method and application thereof. The powder for laser cladding comprises metal powder and graphite powder, wherein the graphite powder is attached to the surface of the metal powder; and by the mass of the powder for laser cladding, the mass ratio of the metal powderto the graphite powder is 100: (0.2-10). The powder for laser cladding can improve the strength, hardness and wear resistance of the workpiece surface after laser cladding.

Description

technical field [0001] The invention relates to the technical field of laser surface treatment, in particular to a powder for laser cladding and its preparation method and application. Background technique [0002] Laser cladding technology is currently a mature material surface modification technology. Laser cladding technology refers to placing selected coating materials on the surface of the coated substrate with different fillers, and making it blend with the surface of the substrate by laser irradiation. A thin layer is melted at the same time and rapidly solidified to form a surface coating with a very low dilution and a metallurgical bond with the base material, thereby significantly improving the wear resistance, corrosion resistance, heat resistance and other characteristics of the base material surface. [0003] The surface performance of the workpiece after laser cladding mainly depends on the performance of the cladding material. The existing cladding materials m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10B22F1/00B22F9/04C21D1/74
CPCC23C24/103B22F9/04C21D1/74B22F1/05
Inventor 曹通熊嘉锋杜鹏程
Owner 西安鑫精合智能制造有限公司
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