Gapless rolling process for single-strand steckel mill

Abstract

The invention discloses a gapless rolling process for a single-strand steckel mill. The rolling process is characterized in that before the steel throwing of the first blank, the second blank can be tapped and descaled, and can follow at safe speed; during the steel throwing of the first blank, the second blank is delivered into the mill to be rolled, and then the gapless rolling of the steckel mill is realized. The blanks can be flat rolling plate blanks or rolled rolling plate blanks. By modifying the two-stage and one-stage control programs of the mill, the rolling gap time of the two blanks is shortened; when the present blank is rolled, the rolling process of the next blank can be proceeded to a heating furnace area of the one-stage interface, and the tapping of the heating furnace in advance is realized; the next blank is descaled before the rolling of the previous blank is finished, and runs along with the previous blank towards the mill direction, and then the gapless rolling of the steckel mill is realized, and the hourly yield of the mill is enhanced.

Description

technical field [0001] The invention belongs to the field of steel rolling, and relates to a rolling process, in particular to a gapless rolling process for a single-stand steckel mill aimed at shortening the rolling gap between two billets. Background technique [0002] Steckel rolling mills are limited by the secondary model and primary control, and for the sake of equipment safety and billet temperature drop, usually when rolling steel plates, the rolling schedule of the next billet has to wait until the previous billet is rolled Only after throwing steel can it go down to the first-level rolling interface. Since the distance between the descaling box and the rolling mill is generally more than 90m, it generally takes more than 60s from the billet descaling to entering the rolling mill for rolling. The gap time between two billets is too long, which affects the output of the rolling mill. Contents of the invention [0003] In order to overcome the problem that the roll...

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Problems solved by technology

[0003] In order to overcome the problem that the rolling gap between the two billets existing in the existing steckel mill is too long, the purpose of the present invention is to provide a single-stand steckel mill without gap rolling process. The control program shortens the rolling gap time between two billets and realizes the gapless rolling of the steckel mill

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