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Paint for laser nanometer cermet alloying of metallurgical hot roller

A nano-ceramic alloy and hot roll technology, which is applied in laser welding equipment, metal material coating technology, coating, etc., can solve the problems of insufficient supply of roll materials, scrapped rolls, and waste of materials to achieve excellent mechanical properties and prevent crystallization. The effect of grain size and high stiffness

Inactive Publication Date: 2007-03-21
SHENYANG DALU LASER COMPLETE EQUIP
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  • Summary
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  • Description
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AI Technical Summary

Problems solved by technology

The supply of roll materials in our country is insufficient and the price is high. Once the surface of the roll wears out and fails, the entire roll will be scrapped (the layer used by the roll only accounts for about 10% of the total weight of the roll), which will cause huge material waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A coating for laser nano-ceramic alloying on the surface of a metallurgical hot roll, which is uniformly prepared by mixing boron carbide, tungsten carbide, titanium carbide, and chromium carbide with a scale of 30-200 nanometers. The weight percentage of each component is: boron carbide 50%, tungsten carbide 25%, titanium carbide 10%, chromium carbide 15%.

Embodiment 2

[0019] The second embodiment is basically the same as the first embodiment, except that the weight percentage of each component is: boron carbide 60%, tungsten carbide 20%, titanium carbide 2%, chromium carbide 18%.

Embodiment 3

[0021] Embodiment 3 is basically the same as Embodiment 1, except that the weight percentage of each component is: boron carbide 65%, tungsten carbide 16%, titanium carbide 5%, chromium carbide 14%.

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PUM

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Abstract

The paint for laser nanometer cermet alloying of metallurgical hot roller is compounded with boron carbide 40-70 wt%, tungsten carbide 15-30 wt%, titanium carbide 0-15 wt%, and chromium carbide 5-20 wt%. The optimized technological parameters of the present invention result in obviously solid solution strengthening effect and dispersion strengthening effect; the structure fining generates obvious alloy layer strengthening effect, raised toughness and plasticity; and the dispersion of the carbide can arrest the growth of crystalline grain to ensure the high heat stability of the alloy structure. Therefore, the roller will not be annealed and softened during high temperature rolling.

Description

(1) Technical field [0001] The invention relates to a coating for strengthening and repairing the surface of a metallurgical hot roll, in particular to a coating for metallurgical hot roll surface laser nano-ceramic alloying. (2) Background technology [0002] The roll is a tool for plastically deforming (rolled material) metal, and is an important large-scale consumable part that determines the efficiency of the rolling mill and the quality of the rolled material. The quality and service life of rolls are directly related to the production efficiency, product quality and production cost of rolling production. The supply of roll materials in our country is insufficient and the price is high. Once the surface of the roll wears out and fails, the entire roll will be scrapped (the layer of the roll only accounts for about 10% of the total weight of the roll), which will cause a huge waste of materials. How to repair failed rolls has always been a major problem faced by the rol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/563C23C24/10B23K26/34
Inventor 陶兴启黄旭东刘常升陈海涛孙桂芳董容刚
Owner SHENYANG DALU LASER COMPLETE EQUIP
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