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

A technology of argon arc welding and equipment, which is 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: 2014-12-17
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
  • Device and method for eliminating argon-arc welding contact arc striking adhesion
  • 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 in conjunction with the accompanying drawings.

[0017] When the arc ignition used in the prior art argon arc welding is to release the arc, it often occurs that the tungsten electrode contacts the workpiece to generate a lot of energy at the instant of contact so that the tungsten electrode sticks to the workpiece, thereby affecting the welding quality and damaging the workpiece.

[0018] In order to eliminate the phenomenon that the contact arc sticks to the plate during the argon arc welding process, the invention provides an argon arc welding equipment. 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. When the welding equipment is no-loaded, the main circuit voltage output is blocked, and the no-load voltage at this time is the auxiliary power supply voltage. The no...

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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 a method for eliminating argon arc welding contact 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 to obtain a firm joint. process. Among them, supplied by the welding power supply, a strong and long-lasting gas discharge phenomenon is generated between the workpiece and the electrode poles-called arc. [0003] Argon arc welding technology is based on the principle of ordinary arc welding, using argon gas to protect the metal welding material, and through high current to make the welding material melt into a liquid state on the base material to be welded to form a molten pool, so that the welded metal and the welding mater...

Claims

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Application Information

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