Strip steel hot rolling manufacturing technology

Abstract

The invention discloses a strip steel hot rolling manufacturing technology. The strip steel hot rolling manufacturing technology comprises the steps that firstly, a casting billet with the four arc-shaped edges in the length direction is manufactured, and a billet material is manufactured; secondly, the billet material is heated through a heating furnace; and thirdly, the billet material is subjected to finish rolling through a rolling machine and cooled, and thus strip steel is obtained. According to the technology process, it is known that the four edges of the casting billet for manufacturing the strip steel are each in an arc shape, thus the four edges, in the length direction, of the manufactured strip steel are each in an arc shape, namely, the four edges, in the length direction, ofthe strip steel are omitted to reduce the difference between the edges and the middle part, and therefore the temperature difference between the edge part and the middle part of the strip steel can be reduced, so that the percentage that the strip steel is warped is decreased. Therefore, according to the strip steel hot rolling manufacturing technology provided by the invention, the warping defect of the strip steel can be overcome, the quality of the strip steel is improved, and the problems in the field at the present stage are solved.

Description

technical field [0001] The invention relates to the field of strip steel warping prevention, and more specifically relates to a strip steel hot rolling manufacturing process. Background technique [0002] Strip steel warping refers to skin-like defects within 10-20mm of the edge of ultra-low carbon steel, mainly because the cooling speed of the edge and center of the strip is different, and there is a temperature difference. [0003] As far as the prior art is concerned, the strips produced by the hot-rolling process tend to have warped skin defects of different degrees. The warped skins are usually arranged neatly along the length of the strip, and the warped skins open toward the edge of the strip; mild Warped skin defects are intermittently distributed, and in severe cases, they are continuously distributed, which directly affects the quality of the strip. [0004] Therefore, how to improve the peeling defects of strip steel and improve the quality of strip steel is a di...

AI Technical Summary

Problems solved by technology

[0003] As far as the prior art is concerned, the strips produced by the hot-rolling process tend to have warped skin defects of different degrees. The warped skins are usually arranged neatly along the length of the strip, and the warped skins open toward the edge of the strip; mild Warped skin defects are intermittently distributed, and in severe cases, they are continuously distributed, which directly affects the quality of the strip steel

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