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An Atmospheric Supersonic Plasma Spraying Device Forming a Protective Gas Shield

A technology of supersonic plasma and protective gas hood, which is applied in coating, melting spraying, metal material coating process, etc., can solve the problems of high spraying cost and large size, achieve simple structure, reduce the possibility of oxidation, reduce The effect of oxidation

Active Publication Date: 2018-06-15
ACADEMY OF ARMORED FORCES ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing supersonic plasma spraying device, such as high spraying cost, large size, and the ability to spray large-scale equipment outdoors, and provide an atmospheric supersonic plasma spraying device that forms a protective gas cover

Method used

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  • An Atmospheric Supersonic Plasma Spraying Device Forming a Protective Gas Shield
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  • An Atmospheric Supersonic Plasma Spraying Device Forming a Protective Gas Shield

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0032] Such as figure 1 As shown, the present invention provides a kind of atmospheric supersonic plasma spraying device that forms protective gas cover, comprises gun seat 1, gun body pressure cap 2, gun body 3, insulator 4, gas swirl ring 5, powder feeding frame 6, Nozzle pressure cap 7, anode nozzle 8, diversion structure 9, cathode head 10, rear insulator 11, water inlet 12, plasma gas inlet 13, water outlet 14, cathode body 15, entire gasket 16, rear insulation pressure cap 17, Cathode body pressure cap 18 .

[0033] Such as figure 2 , image 3 , Figure 4 As shown, the anode nozzle 8 is in the shape of a body of revolution, and a central through hole 801 is provided at the central axis of the anode nozzle 8 , and a protective gas hole 802 and a powder feeding hole ...

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Abstract

The invention discloses an atmospheric supersonic plasma spraying device for forming a protective gas hood, which comprises an anode nozzle, which is in the shape of a revolving body and has a central through hole. On the circumferential surface of the anode nozzle, the outlet end communicates with the central through hole, and the axis of the protective air hole forms an acute angle α with the axis of the central through hole; the inlet end of the powder feeding hole is set on the circumferential surface of the anode nozzle, and the outlet end is connected to the axis of the central through hole. The central through hole is communicated, and the axis of the powder feeding hole is perpendicular to the axis of the central through hole. The invention has simple structure, no solid cover, no need to install a cold water device, convenient installation, disassembly and inspection, and the spraying material is not easy to adhere to the nozzle hole. The oxidation of the sprayed particles in the middle, and has a certain cooling effect on the jet, so as to reduce the temperature of the jet and the temperature of the sprayed particles, and reduce the possibility of oxidation of the sprayed particles.

Description

technical field [0001] The invention relates to the technical field of coating preparation, in particular to an atmospheric supersonic plasma spraying device for forming a protective gas shield. Background technique [0002] Because titanium has excellent corrosion resistance, mechanical properties and process properties, it is widely used in many sectors of the national economy, but the high price of titanium limits its wider and low-cost application. According to statistics, in 2013, the output of sponge titanium in my country was 80,000 tons, and the amount of titanium alloy corrosion resistance used in the amount of titanium materials reached more than 60%, including chemical industry, ocean, ship, salt industry, etc. The consumption of titanium materials is huge, how to reduce the consumption of titanium materials has always been a difficult problem in the industry. The preparation of Ti coating by thermal spraying is an effective way to reduce the consumption of titan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/134
Inventor 张伟刘明王海军姜祎陈书赢汪勇
Owner ACADEMY OF ARMORED FORCES ENG PLA
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