Metal powder injection device based on plasma magnetic field propulsion
A plasma and metal powder technology, applied in metal processing equipment, pressure inorganic powder coating, manufacturing tools, etc., can solve the problem of difficult to achieve high-density, high-purity non-oxidized metal welding, increased operational complexity, and insufficient cutting accuracy Advanced problems, to achieve the effect of controllable injection speed and temperature, stable and long-lasting plasma, and uniform and stable force
Active Publication Date: 2017-04-19
ZHEJIANG UNIV
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Problems solved by technology
These existing methods have the following problems: the wire cutting technology needs to perforate when cutting the inside of the metal, and needs to be replaced after multiple operations, which increases the complexity of the operation; high temperature, high-speed acetylene gas flow cutting and high-pressure water gun cutting metal methods in Cutting accuracy is not high enough
[0003] Another application field is metal welding. The existing welding technology is difficult to achieve high-density, high-purity non-oxidized metal welding, especially in the welding of non-same metal sections, which is easy to cause cross-section oxidation and corrosion
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[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] like figure 1 As shown, the present invention comprises feeding device 1, permanent magnet 2, silicon steel sheet 3, protective cover 4 and electrode 5, and the fine metal powder through grinding is housed in feeding device 1 and is filled with the gas that is used to generate plasma; The outlet of the feeding device 1 is connected to the injection channel surrounded by the protective cover 4, and electrodes 5 are arranged on both sides of the injection channel, and an internal electric field area is formed between the electrodes 5 on both sides; the permanent magnet 2 is sandwiched between the upper and lower silicon steel sheets 3 Between, and wrapped outside the protective cover 4 to form an external magnetic field area, the strong magnetic field is gathered between the electrodes 5 through the silicon steel sheet 3, and the...
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Abstract
The invention discloses a metal powder jetting device based on plasma magnetic field propelling. The device comprises a feeding device, a permanent magnet, silicon steel sheets, a protecting sleeve and electrodes. Ground fine metal powder is arranged in the feeding device which is filled with gas for generating plasma. An outlet of the feeding device is connected with a jetting channel surrounded by the protecting sleeve. The electrodes are arranged on the two sides of the jetting channel. An inner electric field zone is formed between the electrodes on the two sides. The permanent magnet is clamped between an upper silicon steel sheet and a lower silicon steel sheet and is wrapped outside the protecting sleeve, and an outer magnetic field zone is formed. The electrodes generate an inner strong electric field. The protecting sleeve is placed between the outer magnetic field zone formed by the permanent magnet and the silicon steel sheets and the inner electric field zone generated by the electrodes. The metal powder jetting device can generate plasma quickly and effectively, sprayed metal powder wrapped by plasma is high in temperature, high in speed and high in purity, and the metal powder can be widely used for fields such as metal cutting, different metal welding and surface spraying.
Description
technical field [0001] The invention relates to an injection device, in particular to a metal powder injection device based on plasma magnetic field propulsion. Background technique [0002] In the field of metal cutting, wire cutting, high-temperature acetylene cutting and high-temperature water jet cutting are widely used in the market. These existing methods have the following problems: the wire cutting technology needs to perforate when cutting the inside of the metal, and needs to be replaced after multiple operations, which increases the complexity of the operation; high temperature, high-speed acetylene gas flow cutting and high-pressure water gun cutting metal methods in The cutting accuracy is not high enough. [0003] Another application field is metal welding. The existing welding technology is difficult to achieve high-density, high-purity non-oxidized metal welding, especially in the welding of non-identical metal sections, which is easy to cause cross-section ...
Claims
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IPC IPC(8): C23C24/04B23K28/00
Inventor 方攸同何磊杰梁斯庄黄晓艳马吉恩张健刘嘉斌周晶
Owner ZHEJIANG UNIV