Breaking shear capable of avoiding twisting and steel heaping of square billet during rolling

Abstract

The invention belongs to the technical field of metallurgy, and particularly relates to a breaking shear capable of avoiding twisting and steel heaping of square billet during rolling. Aiming at the problems that outlets of breaking shears in the prior art are far away from a roller groove, the torsion degree is large during square billet rolling, steel heaping at a pull-out opening of a rolling mill is likely to occur, production is seriously affected, normal operation of equipment is damaged, in addition, wear-resisting plates installed on the inner walls of the two sides of a cutting shear outlet are inconvenient to disassemble, and the production efficiency is affected, the following scheme is provided. The shear comprises a breaking shear body, the front side of the breaking shear body is fixedly connected with two supporting plates, a top plate and a bottom plate are fixedly connected to the sides, close to each other, of the two supporting plates, and the top plate is located above the bottom plate. The breaking shear achieves disassembly and assembly operation of the wear-resisting plate through a simple structure, improves working efficiency, reduces torsion of square billets in the rolling process, and avoids the situation of steel heaping at a pull-out opening of a rolling mill.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a jamming shear capable of preventing stripping of square blanks, rolling and twisting stacked steel. Background technique [0002] The process of continuously casting the refined molten steel into billets belongs to the steelmaking and continuous casting process. Due to the deviation of the execution process during steelmaking and continuous casting to produce billets, the produced billets occasionally appear out of square (parallelogram in cross-sectional size). If the billet If the off-square exceeds a certain degree, when the billet is rolled by the rack rolling mill, the billet will be twisted during the rolling process. If the twist exceeds a certain degree, wing edges will appear on both sides of the deformed material after rolling. If the wing edge becomes wider When it reaches a certain size, it will cause the rolling mill to pull out piles of steel, which will not on...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that in the prior art, the outlet of the jamming shear is far away from the roll groove, and the torsion degree is relatively large when the billet is rolled, which is easy to cause the situation that the rolling mill pulls out the pile of steel at the outlet, which not only seriously affects production but also It will cause damage to the normal operation of the equipment. In addition, the wear-resistant plates on the inner walls on both sides of the clipping shear outlet are usually fixed by welding or bolts. When it needs to be replaced, it is inconvenient to disassemble and seriously affects the production efficiency. A kind of jamming shear capable of preventing the square billet from rolling and twisting stacked steel

Images