A control method for preventing strip steel from being thrown into acid tank

Abstract

The invention discloses a control method for preventing strip steel from being thrown into an acid tank, comprising: acquiring operating parameters corresponding to hot-rolled strip steel passing through a tension leveler; When the hot-rolled strip is broken, control the hot-rolling production line to stop, and control the first pressure roll above the first tension roll, the second pressure roll above the second tension roll, and the third tension roll. The third pressure roller is pressed down, the first tension roller is located at the entrance side of the tension leveler, the second tension roller is located at the exit side of the tension leveler, and the third tension roller is arranged in the pickling tank On the outlet side, the pickling tank is arranged behind the tension leveler along the running direction of the hot-rolled strip. The present application is a control method for holding the broken strip steel in time to prevent it from being thrown into the pickling tank when the broken strip is found, which avoids the occurrence of the accident that the broken strip steel is thrown into the pickling tank, and the accident is cumbersome and affects the pickling. production capacity and technical issues with potential safety hazards.

Description

technical field [0001] The invention relates to the technical field of cold rolling, in particular to a control method for preventing strip steel from being thrown into an acid tank. Background technique [0002] Tensile leveling is a very important process in the cold rolling process. The purpose is mainly in two aspects: first, to improve the shape of the strip; second, the iron oxide scale on the surface of the strip steel will crack after the tension leveling for pickling. After the hot-rolled strip is straightened by the tension-leveling machine, the strip enters the three-stage turbulent pickling tank, and the iron oxide scale on the surface of the strip is washed by acid chemical reaction, and then enters the five-continuous rolling mill through the processes of rinsing and trimming. Manufactured, and then rolled to form a chilled substrate. [0003] like figure 1 As shown in the figure, because the thickness of the raw material is thin, and the head and tail parts ...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a control method for preventing strip steel from being thrown into the acid tank, which solves the technical problems in the prior art that the process of dealing with broken strip steel accidents is cumbersome, affects the production capacity of acid rolling, and has potential safety hazards

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