Roller-type continuous cold-bending forming method of stainless steel roof side beams

Abstract

The invention discloses a roller type continuous cold bending forming method for a stainless steel car roof edge beam. The roller type continuous cold bending forming method comprises the following four steps: feeding, carrying out roller type continuous cold bending forming, reshaping and cutting off. The step of feeding is to convey a belt steel plate matched with an expanded size width of the car roof edge beam into a feeding end of a roller type continuous cold bending forming production line; the step of carrying out the roller type continuous cold bending forming is to sequentially carry out 100 paths of roller type continuous cold extrusion and deformation procedures on belt steel entering the roller type continuous cold bending forming production line; the step of reshaping is to reshape the continuous car roof edge beam obtained by the roller type continuous cold bending forming step to generate reversed deformation with different radiuses by a paired roller die on the circular arc radius of a car roof edge beam product; finally, the car roof edge beam which is finished by a reshaping roller die is directly conveyed or is straightened and is conveyed into cutting-off equipment to be cut off according to a needed size. The car roof edge beam produced by the roller type continuous cold bending forming method has reasonable deformation, high finished product quality, long service life and high production efficiency.

Description

technical field [0001] The invention relates to a method for manufacturing car body parts of subways, high-speed rails, etc., in particular to a roll-type continuous cold-bending forming method for stainless steel roof side beams, specifically a stainless steel roof side for subway cars Continuous roll forming method for beams. Background technique [0002] In recent years, my country's high-speed rail, bullet train, subway and other businesses have developed rapidly. The original ordinary cold plate and some weathering steel materials are far from meeting the development needs in this area, and stainless steel materials have been developed. After several years of development, stainless steel has been widely used in the manufacture of high-speed rail, bullet trains, and subways. Compared with the early cold and hot plates and other materials, stainless steel has the advantages of higher toughness and plasticity, high temperature resistance and corrosion resistance, easy pol...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a roll-type continuous cold-bending forming method of stainless steel roof side beams with reasonable deformation, long mold life, high production efficiency and high product quality, so as to solve the low processing efficiency of vehicle side beams in the prior art , the length is limited and the size of the arc is not easy to control, and the cold-bending continuous forming lacks a reasonable processing technology.

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