Plasma brazing machine
A plasma brazing and welding machine technology, applied in plasma welding equipment, welding equipment, welding equipment, etc., can solve the problems of rising use cost, large volume of welding torch, inconvenient use of operators, etc., and reduce labor intensity and shrink the volume of welding torch Effect
Active Publication Date: 2016-12-21
GUANGZHOU INST OF RAILWAY TECH
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Problems solved by technology
[0004] However, traditional brazing is mainly performed by flames produced by the combustion of flammable gases, such as oxyacetylene flames, natural gas flames, etc. Due to energy shortages and requirements for energy saving and emission reduction, the cost of use is increasing year by year, and users have to seek alternatives. Program
At present, some plasma flames on the market are used for brazing, but due to the large size of the welding torch, it brings great inconvenience to the operator.
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[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0022] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...
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The invention discloses a plasma brazing machine, comprising a brazing gun and an arc striking mechanism, wherein the brazing gun comprises a gun nozzle and an electrode, the electrode is arranged in the gun nozzle and spaced from the gun nozzle to form an ionization space, and the gun nozzle is provided with a needle threading hole communicated with the electrode; the arc striking mechanism comprises an arc striking seat with an arc striking cavity and an arc striking needle, an opening communicated with the outside is formed at one end of the arc striking cavity, and the arc striking needle is arranged in the arc striking cavity and spaced from the opening at certain interval; the gun nozzle is held in the arc striking cavity via the opening in a pluggable mode, and the electrode is in separable contact with the arc striking needle via the needle threading hole. In the plasma brazing machine, the arc striking mechanism is separated from the brazing gun, that is, arc striking is performed on the brazing gun via the external arc striking mechanism, so that the size of the brazing gun is greatly reduced, operators easily master the brazing gun, the labor intensity is also greatly reduced, and the plasma brazing machine is beneficial to popularizing the application of energy-saving plasma brazing in the fields of hard brazing such as copper brazing, aluminum brazing and silver brazing.
Description
technical field [0001] The invention relates to the field of plasma cutting equipment, in particular to a plasma brazing machine. Background technique [0002] Brazing is a kind of filler metal (called solder or solder) whose melting point is lower than that of the base metal (brazed material). Wetting, spreading on the surface of the base metal and filling in the gap of the base metal, mutual dissolution and diffusion with the base metal, and the welding method to realize the connection between parts. [0003] As a kind of brazing, brazing refers to brazing using brazing filler metal, that is, brazing filler metal with a melting point higher than 450° C., and the brazing joint strength is higher (greater than 200 MPa). Common brazing includes brazing, aluminum welding and silver welding, etc., which are used in cemented carbide tools, drilling bits, lighting, air conditioners, bicycle frames, heat exchangers, conduits and various containers. [0004] However, traditional ...
Claims
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IPC IPC(8): B23K3/00B23K3/08B23K10/02
CPCB23K3/00B23K3/08B23K10/02
Inventor 张晓东刘迎春彭炜李营
Owner GUANGZHOU INST OF RAILWAY TECH