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Device and method for eliminating argon-arc welding contact arc striking adhesion

A technology of argon arc welding and equipment, applied in the field of arc welding, can solve problems such as damage to workpieces, and achieve the effect of improving welding quality

Active Publication Date: 2012-07-11
SHANGHAI WTL WELDING EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of contact arc ignition, when welding thin plates, it often occurs that the tungsten electrode contacts the workpiece to generate a lot of energy at the moment, making the tungsten electrode stick to the workpiece, thus affecting the welding quality and damaging the workpiece.

Method used

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  • Device and method for eliminating argon-arc welding contact arc striking adhesion
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  • Device and method for eliminating argon-arc welding contact arc striking adhesion

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Embodiment Construction

[0016] Specific embodiments of the present invention will be described in detail below with reference to the drawings.

[0017] When the arc ignition used in the prior art argon arc welding is to release the arc, it often occurs that a lot of energy is generated at the moment when the tungsten electrode contacts the workpiece, which makes the tungsten electrode stick to the workpiece, thereby affecting the welding quality and damaging the workpiece.

[0018] In order to eliminate the phenomenon of arc sticking during the argon arc welding process, the present invention provides an argon arc welding device. The argon arc welding equipment includes an auxiliary voltage circuit and a no-load voltage detection circuit. The auxiliary voltage circuit provides an auxiliary voltage, and the main circuit voltage output is blocked when the welding equipment is empty, and the no-load voltage at this time is the auxiliary power voltage. The no-load voltage detection circuit is used to detect ...

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Abstract

The invention discloses a device for eliminating argon-arc welding contact arc striking adhesion, which is characterized by comprising a main circuit, an auxiliary voltage circuit and a no-load voltage detecting circuit. The auxiliary voltage circuit is used for supplying auxiliary voltage, no-load voltage is equal to the auxiliary voltage as the voltage of the main circuit cannot be outputted when the device is no-load, and the device is short-circuited according to no-load voltage value when the no-load voltage detecting circuit detects the no-load voltage. The invention further discloses a method for eliminating argon-arc welding contact arc striking adhesion.

Description

Technical field [0001] The invention relates to an arc welding technology, in particular to a device and method for eliminating argon arc welding contact and arc sticking. Background technique [0002] Electrode arc welding is the most widely used welding method in industrial production. Its principle is to use the heat generated by arc discharge (commonly known as arc combustion) to melt the electrode and the workpiece and form a weld after condensation, so as to obtain a firm joint welding process. Among them, supplied by the welding power source, there is a strong and long-lasting gas discharge phenomenon between the workpiece and the electrode-called arc. [0003] The argon arc welding technology is based on the principle of ordinary arc welding. It uses argon gas to protect the metal welding material. Through high current, the welding material is melted into a liquid on the welded substrate to form a molten pool, so that the welded metal and welding A welding technology in w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/067B23K9/167
Inventor 尤志春张辉
Owner SHANGHAI WTL WELDING EQUIP MFG CO LTD