Arc welding equipment, arc welding control method and device

An arc welding equipment, arc welding technology, applied in arc welding equipment, welding equipment, metal processing equipment and other directions, can solve the problems of arc instability, welding defects, critical short circuit, etc., to prevent welding defects, arc length increase, increase long distance effect

Active Publication Date: 2018-02-27
PANASONIC WELDING SYST TANGSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when performing short-arc welding, the arc length of the arc should not be too short, otherwise the phenomenon of molten pool oscillation or critical short circuit may occur, which will make the arc unstable and cause welding defects

Method used

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  • Arc welding equipment, arc welding control method and device
  • Arc welding equipment, arc welding control method and device
  • Arc welding equipment, arc welding control method and device

Examples

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Embodiment Construction

[0056]Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details being omitted, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known technical solutions...

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Abstract

The present disclosure provides an arc welding control method, which is used in arc welding equipment. The arc welding control method includes: determining the first critical voltage according to the current set voltage, actual voltage, set current and actual current; determining the first critical voltage according to the actual voltage and the actual current to determine the second critical voltage; compare the first critical voltage and the second critical voltage, and use the larger one as the critical stable voltage; judge whether the actual voltage is less than the critical stable voltage; when the actual voltage is less than the critical stable voltage, Increase the set current until the actual voltage is greater than or equal to the critical stable voltage, then restore the set current.

Description

technical field [0001] The present disclosure relates to the field of welding technology, in particular, to an arc welding equipment, an arc welding control method, and an arc control device. Background technique [0002] Welding, as a very common joining process, plays an important role in industrial production and manufacturing. Among them, arc welding is the more common type of welding. It usually uses the heat generated by the arc discharge to melt the solder and the workpiece. The workpiece and the solder melt to form a molten pool. After the molten pool is cooled and solidified, a weld is formed to obtain a firm joint. [0003] With the refined development of welding technology, more and more processing and manufacturing occasions require higher quality welding. In order to adapt to different needs, it is necessary to control the shape of the weld pool. In general, the shape of the molten pool can be controlled by controlling the arc length of the arc to ensure the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K9/095
CPCB23K9/095
Inventor 王帅张立伟王伟王新
Owner PANASONIC WELDING SYST TANGSHAN
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