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Electric arc welding method and electric arc welding device

A welding equipment and welding method technology, applied in arc welding equipment, welding equipment, welding accessories and other directions, can solve the problems of reducing welding efficiency, increasing welding cost, unable to weld seam, etc., so as to reduce welding cost and improve welding efficiency. Effect

Inactive Publication Date: 2018-03-02
HUAHENG WELDING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem solved by the present invention is that tungsten arc welding cannot completely weld the weld seam with a larger width at one time, which reduces the welding efficiency and increases the welding cost

Method used

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  • Electric arc welding method and electric arc welding device
  • Electric arc welding method and electric arc welding device
  • Electric arc welding method and electric arc welding device

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Embodiment Construction

[0028] The inventors found that in the prior art, in order to improve the welding efficiency of tungsten arc welding and reduce the welding cost, the following three methods are usually used to weld the weld seam with a relatively large width.

[0029] One, in the specific welding process, the welder moves the welding torch back and forth along the direction perpendicular to the weld seam by swinging his wrist, so that the solder can fall into a wider weld seam range. When the torch is moved from one end of the weld to the other, it improves welding efficiency.

[0030] However, manual control by the welder is highly dependent on the welder, and generally the uniformity of welding cannot be guaranteed, resulting in an unsatisfactory effect in terms of welding quality and welding appearance.

[0031] Second, by setting a mechanical swing structure, the mechanical swing structure is fixedly connected to the welding torch. During the welding process, the welding torch is control...

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Abstract

The invention discloses an electric arc welding method and welding device. The welding method comprises the steps that a welding gun head is supplied, wherein the welding gun head comprises a discharge electrode; a variable magnetic field generation device is supplied, wherein the magnetic induction line direction of a variable magnetic field is the same as the weld joint extending direction; andalternative changes of the magnetic induction intensity of the variable magnetic field are controlled, and the discharge electrode moves in the weld joint extending direction in the variable magneticfield for welding. Therefore, in the welding process, electric arcs between the discharge electrode and a to-be-welded workpiece skew in the magnetic field, and the electric arc skewing distance is changed by adjusting the magnetic induction intensity of the magnetic field, that is to say, a weld joint has the large width, so that electric arcs can melt materials at different widths of the weld joint. It is guaranteed that the whole welding process can be completed at a time when the welding gun head moves in the weld joint extending direction, the welding efficiency is improved, and the welding cost is reduced.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to an arc welding method and arc welding equipment. Background technique [0002] Tungsten Inert Gas Welding (TIG) is a welding method that generates an arc between a non-consumable electrode and a work object, and the arc conducts heat. It has the characteristics of stable arc, beautiful appearance, and high welding quality. It is usually used For bottom welding, cover welding and thin plate precision welding. [0003] However, tungsten arc welding also has the disadvantages of shallow penetration and low welding efficiency. If the weld seam of the material to be welded is wide, the weld seam cannot be welded completely in one go with tungsten arc welding. In the prior art, it is usually necessary to perform multiple weldings on the weld seam, thus reducing the welding efficiency and increasing the welding cost. Contents of the invention [0004] The problem solved by the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/167B23K9/08B23K9/32
CPCB23K9/167B23K9/08B23K9/32
Inventor 周有泉
Owner HUAHENG WELDING
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