A self-repairing seam repair method at the bend of a metal plate

Abstract

The invention discloses a self-repairing method for the bending of a metal plate, which belongs to the field of metal plate bending. It is a self-repairing method for the bending of a metal plate. Seam metal powder, combined with a soft magnetic strip, can effectively guide the seam repair metal powder to penetrate into the micro-cracks, and then perform fixed-point micro-melting on the bend, which can achieve the effect of crack repair without the need to determine the crack position. Compared with The existing technology significantly improves the repair efficiency of the cracks. At the same time, under the action of the diffuse and restrained suction cover, on the one hand, it can effectively isolate the sprayed seam repair metal powder from the external space. Attracts and assists the seam filling metal powder to be close to the semi-shaped suction strip and is absorbed to realize the diffuse recovery of the seam filling metal powder and reduce the waste of the seam filling metal powder. On the one hand, it effectively protects the staff from inhaling the seam filling metal powder, thereby effectively reducing the its health effects on workers.

Description

technical field [0001] The invention relates to the field of bending of metal plates, and more specifically relates to a method for self-sealing and repairing of bending parts of metal plates. Background technique [0002] Bending——The metal sheet first undergoes elastic deformation under the pressure of the upper or lower die of the bending machine, and then enters plastic deformation. In the initial stage of plastic bending, the sheet is free to bend. With the upper die or When the lower mold exerts pressure on the sheet, the sheet and the inner surface of the V-groove of the lower mold gradually get closer, and at the same time, the radius of curvature and the bending arm also gradually become smaller. Continue to pressurize until the stroke ends, so that the upper and lower molds and the sheet are in three-point contact. Tight full contact, at this time to complete a V-shaped bend, which is commonly known as bending. Generally, the bending process is performed by a bend...

AI Technical Summary

Problems solved by technology

[0003] When the metal plate is bent, due to the stretching or extrusion of the bending place, the bent metal plate is prone to cracks at the stressed bending place, resulting in a decrease in the overall strength of the metal plate and a shortened service life. Therefore, it is generally necessary to carry out certain treatment on the bent part of the bent metal plate. However, the cracks are small and difficult to find, resulting in low repair efficiency, and it is difficult to find and detect them all, resulting in the bent part still existing after treatment. Not strong enough

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