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Production method of high-purity tungsten boride

A production method, tungsten boride technology, applied in the direction of boron/boride, metal boride, etc., can solve the problems of increasing production cost, easy volatile oxidation, small safety factor, etc., and achieve production cost environmental protection, non-volatile oxidation, production low cost effect

Inactive Publication Date: 2011-04-06
鲍迎全
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the self-propagating combustion method is used at home and abroad to produce high-purity tungsten boride. This method has large pollution and low safety factor. It needs advanced chemical production technology and advanced production equipment to ensure environmental protection. Undoubtedly Will greatly increase production cost, moreover, the product quality that obtains by this method exists unstable product quality, the shortcoming of easy volatilization oxidation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0007] The production method of high-purity tungsten boride in this embodiment is to mix 50-55 parts by weight of boron carbide, 35-45 parts by weight of metal tungsten and 0-30 parts by weight of carbon-containing additives, and then pass through a vacuum resistance furnace at 2000 ° C to 2400 ° C. It is prepared by electric melting and smelting at a temperature of ℃ for 4 to 5 hours. The carbon-containing additive is charcoal, graphite, petroleum coke or any combination thereof.

Embodiment approach 2

[0009] The production method of high-purity tungsten boride in this embodiment is to mix 50-55 parts by weight of boron carbide, 35-45 parts by weight of metal tungsten, and 0-15 parts by weight of charcoal and / or graphite, and then pass through a vacuum resistance furnace at 2000 ° C. It is produced by electromelting at -2400°C for 4 to 5 hours.

Embodiment approach 3

[0011] The production method of high-purity tungsten boride in this embodiment is to mix 50-55 parts by weight of boron carbide, 35-45 parts by weight of metal tungsten, and 0-30 parts by weight of petroleum coke, and then heat it in a vacuum resistance furnace at 2000°C-2400°C. It is produced by electric melting and smelting at a certain temperature for 4 to 5 hours.

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Abstract

The invention relates to a production method of high-purity tungsten boride, comprising the following steps: 50 to 55 parts by weight of boron carbide, 35 to 45 parts by weight of metal tungsten and 0 to 30 parts by weight of additive containing carbon are mixed, and then the mixture is electrically melted and smelted for 4 to 5 hours at the temperature 2000 DEG C to 2400 DEG C in a vacuum resistance furnace, thus obtaining the high-purity tungsten boride, wherein the additive containing carbon is one or any combination of charcoal, graphite, and petroleum coke. The production method has the advantages of low production cost and environment protection, and the high-purity tungsten boride produced by adopting the method has the advantages of stable quality, and less possibility of volatilization and oxidation.

Description

technical field [0001] The invention relates to a production method of high-purity tungsten boride. Background technique [0002] High-purity tungsten boride WB 2 With strong toughness and high temperature wear resistance, it is used in many fields such as petrochemical industry, iron and steel metallurgy, machinery manufacturing, railway bridges, oil and gas pipelines, vehicles and ships, boiler containers, electric power and water conservancy, aerospace, mining construction, etc. At present, the self-propagating combustion method is used at home and abroad to produce high-purity tungsten boride. This method has large pollution and low safety factor. It needs advanced chemical production technology and advanced production equipment to ensure environmental protection. Undoubtedly Will greatly increase production cost, moreover, there is unstable product quality in the product that obtains by this method, the shortcoming of easy volatilization oxidation. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B35/04
Inventor 鲍迎全
Owner 鲍迎全
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