Magnetically-controlled plasma welding method and welding device

A technology of plasma and welding methods, which is applied in the field of plasma welding methods and welding devices, and can solve problems such as failure to achieve expected results and weakening of the magnetic field.

Inactive Publication Date: 2019-04-09
邢台子中电子科技有限公司
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Problems solved by technology

[0003] In order to solve this problem, experts and scholars at home and abroad have exhausted various methods, but everyone has fallen into a fixed thinking mode invisibly: to make the plasma energy highly concentrated and have the characteristics of strong longitudinal motion kinetic energy, a strong plasma must be generated. Longitudinal magnetic field, and in order to generate a strong mag

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  • Magnetically-controlled plasma welding method and welding device

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Embodiment

[0023] A magnetron plasma welding method proposed in this embodiment increases a longitudinal magnetic field along the direction of the welding torch between the welding torch and the welding workpiece.

[0024] In this embodiment, the longitudinal magnetic field along the direction of the welding torch may have weak magnetic fields in other directions at the same time, as long as the shrinkage effect of the longitudinal magnetic field on the arc is not affected.

[0025] The longitudinal magnetic field along the direction of the welding torch used in this embodiment is formed by a metal ring connected to a power supply, which may be a DC power supply or an AC power supply. The current of the power supply is 100-20000A. The current of the power supply is determined according to the material of the welding workpiece and the welding thickness. For welding a slightly thin workpiece, you can choose a current of several hundred amperes. For difficult welding or thick welding, you ca...

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Abstract

The invention discloses a magnetically-controlled plasma welding method and a welding device. According to the magnetically-controlled plasma welding method, adding of a longitudinal magnetic field along the direction of a welding gun between the welding gun and a workpiece welded is adopted. Under restraint of a longitudinal magnetic field, the drastic contracting effect is produced by electric arcs. The electric field intensity of the electric arcs is strengthened conspicuously, and thus the electric arcs have strong longitudinal penetrating power. Therefore, by adding the longitudinal magnetic field between the welding gun and the workpiece welded, a high-thickness plate or other special metal materials which are difficult to weld can be welded easily; and moreover, under the action ofelectrified coil current, the workpiece welded also has function of preheating before welding and heat treatment after welding, and the welding joint molding quality is improved obviously.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a magnetron plasma welding method and a welding device. Background technique [0002] With the rapid development of power electronics technology, welding technology is also changing with each passing day. However, in the field of welding, there have always been several technical problems that have not been solved or made any progress for decades. One of them is magnetron plasma welding technology, which has a welding effect that cannot be achieved by other welding methods for welding ultra-thick steel plates or other metal materials, as well as welding various high thermal conductivity metals including copper plates. At the same time, this technology has a very significant effect on improving the quality of welds and improving welding efficiency. [0003] In order to solve this problem, experts and scholars at home and abroad have exhausted various methods, but everyone has fa...

Claims

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Application Information

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IPC IPC(8): B23K10/02
CPCB23K10/02
Inventor 王德斌郝国军王康
Owner 邢台子中电子科技有限公司
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