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Electromagnetic stirring submerged arc overlaying welding device

A technology of submerged arc surfacing and electromagnetic stirring, applied in arc welding equipment, welding equipment, manufacturing tools, etc., can solve the problems of increasing difficulty of magnetron arc technology, inability to put into production and application, unstable welding quality, etc. Chemical composition segregation and tissue segregation, simple and compact device, and the effect of improving comprehensive mechanical properties

Inactive Publication Date: 2010-09-22
SHANGHAI BAOSTEEL EQUIP MAINTENANCE CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, as submerged arc welding, the welding current generally reaches 300-400A, the arc stiffness is large, and the control performance is poor, and the surface is covered with a layer of flux during welding, which also increases the difficulty of the magnetic control arc technology.
In order to improve the performance of deposited metal in submerged arc welding, some researchers use a simple electromagnetic stirring device to act on the welding arc of submerged arc welding to improve the hardness of deposited metal, but the current interference of submerged arc welding makes the welding quality unstable and cannot Put into production application

Method used

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  • Electromagnetic stirring submerged arc overlaying welding device
  • Electromagnetic stirring submerged arc overlaying welding device
  • Electromagnetic stirring submerged arc overlaying welding device

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Embodiment Construction

[0017] like figure 1 As shown, the present invention is an electromagnetic stirring submerged arc surfacing device, an electromagnetic stirring submerged arc surfacing device, including a conductive tip 1, and a welding wire 2 passes through the conductive tip 1, and it also includes a sleeve on the conductive tip 1 The exciting coil 4 and the square-wave power supply that provides electric energy for the exciting coil 4, the square-wave power supply is an inverter square-wave pulse power supply.

[0018] The electromagnetic stirring submerged arc surfacing device also includes a magnetic conduction device for enhancing the magnetic field, the magnetic conduction device includes a metal inner sleeve 3, and the excitation coil 4 is wound on the outer wall of the inner sleeve 3 , the contact tip is located in the inner sleeve.

[0019] The electromagnetic stirring submerged arc surfacing device also includes a water cooling structure, the water cooling structure includes an out...

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Abstract

The invention relates to a welding device, in particular to an electromagnetic stirring welding device. The electromagnetic stirring submerged arc overlaying welding device comprises a submerged arc welding power supply, a wire feeding device and a contact tube, wherein a welding wire passes through the contact tube; and the electromagnetic stirring welding device also comprises a magnetic exciting coil sleeved on a conducting rod, an inverting square wave power supply supplying electric energy for the magnetic exciting coil and a magnetic-conducting device designed for enhancing a magnetic field. The device not only improves the comprehensive mechanical property of deposited metal, but also has the characteristics of small volume and convenient application.

Description

technical field [0001] The invention relates to a welding device, in particular to an electromagnetic stirring welding device, which combines electromagnetic technology and submerged arc surfacing technology. Background technique [0002] At present, submerged arc welding technology has been widely used in the field of surfacing welding. In the technical field with high requirements, affected by the crystallization process of the surfacing metal, the surface produced by submerged arc welding is difficult to meet the requirements of the product (or subsequent production process). For example, due to the columnar crystallization process of the metal, the submerged arc welding surfacing metal is easy to crack along the grain boundary, or due to the composition segregation of the surfacing crystallization process, the hardness of the weld bead is uneven or the corrosion resistance is not uniform, which leads to product quality. Unqualified or the next process cannot be carried ...

Claims

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Application Information

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IPC IPC(8): B23K9/08B23K9/04B23K9/18
Inventor 王树保陈国喜常云龙
Owner SHANGHAI BAOSTEEL EQUIP MAINTENANCE CO LTD
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