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Argon-arc-welding welding gun

A welding torch and argon arc technology, which is applied in the field of welding devices, can solve the problems of argon gas waste, reduce the protection effect, etc., and achieve the effects of improving quality and simple and reasonable structure.

Active Publication Date: 2013-01-30
NANTONG STAR GRAPHITE EQUIP CO LTD
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Problems solved by technology

However, this method causes waste of argon gas. At the same time, when the flow rate of argon gas is too large, it may cause the argon gas protection flow to form turbulent flow, and the air will be drawn into the protection area, which reduces the protection effect instead.

Method used

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing.

[0015] Such as figure 1 As shown, the present invention includes a welding torch base 1, and an argon nozzle 2 connected thereto, an electrode 3 is fixedly connected to the inside of the welding torch base 1 and stretches out of the nozzle 2, and also includes a transparent argon shield 4, the argon The gas shield 4 is cylindrical as a whole, but it is an arc-shaped protrusion 4a on the side of the cylinder near its outlet; simultaneously, it is necessary to ensure that the head of the electrode 3 will be exposed outside the cylinder shield 4; when the argon gas When spraying from the nozzle 2, the argon protective cover 4 arranged outside the nozzle 2 can effectively prevent the argon from diffusing to the surroundings, and it is only limited to the peripheral area of ​​the exit of the protective cover 4, and the arc protrusion 4a at the exit of the cylinder It can make t...

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Abstract

The invention discloses an argon-arc-welding welding gun which comprises a welding gun base body (1) and an argon nozzle (2) connected with the welding gun base body (1), wherein the argon nozzle (2) is located below the welding gun base body (1); the argon-arc-welding welding gun further comprises an electrode (3) which is fixedly connected inside the welding gun base body (1) and stretches out of the argon nozzle (2); the argon-arc-welding welding gun further comprises a transparent argon protective cover (3) which is connected to the welding gun base body (1); and the electrode (3) stretches out of the argon protective cover (3). The argon-arc-welding welding gun has a simple and reasonable structure and can effectively isolate air from a welding region, so that the welding quality is improved and the strong practical applicability is realized.

Description

technical field [0001] The invention belongs to the field of welding devices, in particular to an argon arc welding torch. Background technique [0002] Argon arc welding is also called argon shielded welding. It is to pass the argon fox protective gas around the arc welding to isolate the air from the welding area and prevent the oxidation of the welding area; because the argon arc welding arc is stable, the shape is beautiful during welding, there is no welding slag on the surface, and the weld seam is small in deformation It is dense and widely used in practical production. However, it is found in practice that overburning and cracks often occur around the weld zone welded by traditional argon arc torches. The reason is that the argon gas injected by the welding torch cannot effectively isolate the air, which causes the oxidation of the welding zone and seriously affects the quality of welding. In order to improve the welding quality, it is often used to increase the a...

Claims

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Application Information

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IPC IPC(8): B23K9/28B23K9/26B23K9/16
Inventor 钱园张德祥
Owner NANTONG STAR GRAPHITE EQUIP CO LTD
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