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Production process for tungsten carbide

A production process, tungsten carbide technology, applied in the direction of carbide, tungsten/molybdenum carbide, etc., can solve the problems of low product market competitiveness, uneven quality, low production efficiency, etc., to avoid repetitive processes , The production process is simple and the effect of improving work efficiency

Inactive Publication Date: 2016-10-05
重庆麦卡瑞机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the production process of tungsten carbide is complicated, and there is no uniform standard, resulting in uneven quality of tungsten carbide produced. Many repeated processes also make the production efficiency low, increase the labor burden of workers, and make the market competitiveness of the product not high.

Method used

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Embodiment Construction

[0010] The technical solution disclosed by the invention is a production process of tungsten carbide, which is characterized in that it comprises the following steps: batching → mixing → carbonization → ball milling → screening → batching → inspection.

[0011] Further, mix tungsten powder and carbon black in a ball mill, the ratio of ball to material is 1:1, the diameter of the steel ball is 35~50mm, and the ball milling time is 2~4h. If there is no stratification of the material with the naked eye, it is considered to be evenly mixed. .

[0012] Further, the carbonization of tungsten powder is generally carried out in graphite carbon tube furnace. The carbonization process is selected according to the particle size of tungsten powder and the particle size requirements of tungsten carbide. The temperature is 1600℃, and the carbonization time is 1~2h.

[0013] Further, ball milling is carried out in a ball mill, the ratio of ball to material is 1:1, the diameter of steel ball...

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Abstract

The invention discloses a production process of tungsten carbide, which is characterized in that it comprises the following steps: batching → mixing → carbonization → ball milling → screening → batching → inspection. The production process of the tungsten carbide is simple, eliminating many repetitive processes and improving work efficiency.

Description

technical field [0001] The invention relates to a production process of tungsten carbide. Background technique [0002] Tungsten carbide is a compound composed of tungsten and carbon. It is a black hexagonal crystal with metallic luster, its hardness is similar to that of diamond, and it is a good conductor of electricity and heat. Tungsten carbide is insoluble in water, hydrochloric acid and sulfuric acid, and easily soluble in the mixed acid of nitric acid-hydrofluoric acid. Pure tungsten carbide is brittle, and if a small amount of titanium, cobalt and other metals are added, the brittleness can be reduced. Tungsten carbide used as steel cutting tools is often added with titanium carbide, tantalum carbide or their mixtures to improve antiknock ability. Tungsten carbide is chemically stable. Tungsten carbide powder is used in cemented carbide production materials. [0003] At present, the production process of tungsten carbide is complicated, and there is no unified s...

Claims

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Application Information

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IPC IPC(8): C01B31/34C01B32/949
Inventor 凌庭贵
Owner 重庆麦卡瑞机械制造有限公司
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