Excitation device with external transverse magnetic field acting on dissimilar steel welding

A transverse magnetic field and excitation device technology, used in welding equipment, arc welding equipment, metal processing equipment, etc., can solve the problems of difficult welding, unstable welding quality, and poor quality of dissimilar steel welded joints, and achieve the strength and size of the magnetic field. Adjustable, realize automatic control, the effect of rapid and stable magnetic field

Inactive Publication Date: 2021-06-01
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large difference in thermophysical properties of the welding base metals of dissimilar steels, the temperature at the weld position will show an uneven distribution, and the quality of the welded joints of dissimilar steels obtained is poor
In order to ensure good welding quality, such joints need to change the welding position and adjust the posture

Method used

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  • Excitation device with external transverse magnetic field acting on dissimilar steel welding
  • Excitation device with external transverse magnetic field acting on dissimilar steel welding
  • Excitation device with external transverse magnetic field acting on dissimilar steel welding

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Embodiment Construction

[0025] The present invention is further described below in conjunction with embodiment and accompanying drawing.

[0026] like Figure 1 to Figure 5 As shown, an excitation device for applying an external transverse magnetic field to dissimilar steel welding of the present invention includes a sleeve 1, and four M8X16 socket head cap screws are first screwed into the corresponding four threaded holes on the upper part of the sleeve 1, and then the sleeve 1 is set on the handle of the welding torch 8, and the sleeve 1 is fixed on the welding torch 8 by tightening four screws, and the adjustment of the sleeve 1 in a certain spatial position is realized by adjusting the length of the four screws, so as to adjust the final transverse magnetic field Location. Sleeve 1 is the main skeleton of the whole device, which is made of polytetrafluoroethylene organic material, which has the characteristics of high temperature resistance, high strength and non-magnetic conduction. It is holl...

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Abstract

The invention discloses an excitation device with an external transverse magnetic field acting on dissimilar steel welding, and belongs to the technical field of welding equipment. The excitation device comprises a sleeve, iron cores are fixed on the outer side of the sleeve, an upper fixing block is arranged at the top of the iron core on one side, a lower fixing block is arranged at the bottom of the iron core on the other side, an excitation coil is wound on the iron cores in a certain direction, a long magnetic conductive rod is installed on the outer side of the upper fixing block, a short magnetic conductive rod is installed on the outer side of the lower fixing block, and the sleeve is arranged on a welding gun in a sleeving mode and fixed to the welding gun. The excitation device is low in manufacturing cost and easy to install, can be installed and used under the condition that an original welding gun is not upgraded and reformed at all, the generated magnetic field intensity and size are adjustable, the generated magnetic field is rapid and stable, and automatic control can be achieved.

Description

technical field [0001] The invention belongs to the technical field of welding equipment, and in particular relates to an excitation device for applying an external transverse magnetic field to welding dissimilar steels. The device is mainly used for realizing arc deflection and arc heat distribution during argon tungsten arc welding (GTAW) welding of dissimilar steels. Adjust for better weld quality. Background technique [0002] In the key components of shipbuilding, petrochemical, bridge construction and other engineering fields, there are many dissimilar steel welded structural parts with a large number of different materials. Due to the large difference in thermophysical properties of the welding base metals of dissimilar steels, the temperature at the weld position will show an uneven distribution, and the quality of the welded joints of dissimilar steels obtained is poor. In order to ensure good welding quality, such joints need to change the welding position and adj...

Claims

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Application Information

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IPC IPC(8): B23K9/167B23K9/08
CPCB23K9/08B23K9/167
Inventor 岳建锋李亮玉王天琪刘文吉赵金涛谢昶
Owner TIANJIN POLYTECHNIC UNIV
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