Ceramic alloy powder special for continuous optical fiber laser alloying

A ceramic alloy and fiber laser technology, which is applied in the field of ceramic alloy powder, can solve the problems of low level and achieve the effects of dense and uniform structure, reduced pores, and excellent anti-friction and wear properties

Inactive Publication Date: 2015-12-30
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although the laser alloying technology of steel surface has started, the existing technology level is low, especially

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: the proportioning of the weight percent of the ceramic alloy powder that is used for continuous fiber laser alloying is: 6% calcium fluoride, 9% boron, 3% lanthanum oxide, 20% silicon nitride, 3% tungsten carbide and 15 % titanium carbide.

Embodiment 2

[0018] Embodiment 2: will be 5% calcium fluoride by weight percentage, 8% boron, 3% lanthanum oxide, 15% silicon nitride; 3% tungsten carbide, the ratio of 10% titanium carbide weighs 500g sample, after sample preparation Obtain 200-300 mesh ceramic alloy powder.

Embodiment 3

[0019] Embodiment 3: will be 6% calcium fluoride by weight percentage, 9% boron, 4% lanthanum oxide, 20% silicon nitride; 5% tungsten carbide, the ratio of 13% titanium carbide weighs 500g sample, after sample preparation Obtain 200-300 mesh ceramic alloy powder.

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PUM

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Abstract

The invention provides ceramic alloy powder special for continuous optical fiber laser alloying, and belongs to ceramic alloy powder. The ceramic alloy powder is composed of alloy powder and a ceramic hard phase. The alloy powder comprises, by weight, 5-8% of calcium fluoride, 8-12% of boron, 3-5% of lanthanum oxide and 15-25% of silicon nitride. The ceramic hard phase is a mixture of tungsten carbide and titanium carbide. The weight of the tungsten carbide accounts for 3-6% of the total weight of the alloy powder and the ceramic hard phase. The weight of the titanium carbide accounts for 10-15% of the total weight of the alloy powder and the ceramic hard phase. According to the obtained ceramic alloy powder, the generated tissue is compact and uniform, and the ceramic alloy powder is of the submicron ceramic fine-crystalline structure and has the excellent friction and wear resistance. The dilution rate is controlled, bubbles are released, pores are reduced, no cracks or shrinkage cavities or other defects are generated, and the ceramic alloy powder has the excellent metallurgical performance such as the hard hardness.

Description

technical field [0001] The invention relates to a ceramic alloy powder, in particular to a ceramic alloy powder specially used for continuous optical fiber laser alloying. Background technique [0002] Wear is one of the three main failure modes of engineering components. Wear comes from friction. About half of the energy in the world is consumed to overcome the friction of the interaction between the dual surfaces of mechanical parts. According to incomplete statistics, the loss caused by wear and tear in our country is as high as billions of yuan every year. It is very important to solve the problem of wear and tear of materials. Wear generally starts from the surface of the material, so modifying the surface of the material to improve its surface hardness, wear resistance, corrosion resistance and other properties is an effective way to reduce wear loss. Laser surface alloying technology is to directly or indirectly combine the material that needs to be alloyed to the su...

Claims

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Application Information

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IPC IPC(8): B22F1/00C22C32/00C23C24/10
Inventor 陈正樊宇崔荣欣徐杰范贺良陈强
Owner CHINA UNIV OF MINING & TECH
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