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Diamond manufacturing method and manufacturing device thereof

A manufacturing method and technology of a manufacturing device, which are applied in the field of synthetic diamond manufacturing, can solve the problems of uncontrollable manufacturing process, inability to produce diamonds of shape and size, complex process, etc., so as to achieve easy realization of the overall process, controllable particle size and shape, fast growth effect

Inactive Publication Date: 2018-12-28
周文忠
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Explosion method directly synthesizes diamond method, the process is complicated, and the transformation of free carbon into diamond ultrafine powder is completed at the moment of explosion. The manufacturing process is uncontrollable, and it is impossible to produce diamonds with controllable shape and size.

Method used

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  • Diamond manufacturing method and manufacturing device thereof

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Embodiment Construction

[0020] The diamond manufacturing method disclosed in this patent application is as follows: in a closed cavity, ignites the smokeless powder filled therein, and triggers a thermite reaction to form a high temperature and high pressure in which graphite crystals are directly transformed into diamonds. Wherein, the purity of the graphite crystal itself determines the purity of the diamond. If high-purity diamond is to be manufactured, the graphite crystal can be selected from high-purity graphite, such as quasi-single crystal graphite or polycrystalline graphite.

[0021] The patent application also provides a diamond manufacturing device for realizing the diamond manufacturing method. The diamond manufacturing device is an autoclave with a slender cylindrical cavity 10, and the heating wire 9 in the cavity 10 is insulated from the autoclave by an electric connecting wire 19 and leads out of the autoclave. The height of the cavity is preferably at least 4 times its diameter.

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Abstract

The invention provides a diamond manufacturing method and a manufacturing device thereof. The manufacturing method includes burning a graphite crystal in a closed cavity by smokeless powder and triggering the complete reaction of thermite to directly transform the graphite crystal into diamond in a high-temperature high-pressure environment. The manufacturing device is an autoclave with an elongated cylindrical cavity, an electric heating wire is located inside the cavity, and an electrical connection wire is insulated from the autoclave and led out of the autoclave. The manufacturing method achieves the manufacture of the diamond and is greatly simplified. The technical purpose of generating the diamond with controllable particle size, shape and quality is achieved. The entire generationprocess does not need additional related devices, such as electric heating and pressurization devices, or technical measures like a metal catalyst. The device purchase cost and the process cost are greatly reduced.

Description

technical field [0001] This patent application relates to synthetic diamond manufacturing methods. Background technique [0002] Diamond is a special material with extreme performance in mechanics, heat, optics, chemistry and electronics. Its extreme characteristics, such as the highest hardness, the highest thermal conductivity, the highest sound transmission velocity, the widest light transmission band, resistance to strong acid and alkali corrosion, radiation resistance, high breakdown voltage, small dielectric constant, carrier migration It is not only an electrical insulator, but also a good conductor of heat. [0003] Due to the superior properties of diamonds described and still being explored, people hope to make up for the shortage of natural diamonds through artificial diamonds. However, the artificial diamond method requires extremely high process conditions and extremely slow growth rates. It is difficult to meet more practical needs in terms of quality and qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/26B01J3/06
CPCB01J3/065C01B32/26
Inventor 周文忠
Owner 周文忠
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