A rolling method for preventing collapse in thin strip rolling

Abstract

The present invention provides a kind of rolling method that is applied in metallurgical technical field to prevent the collapse in thin strip steel rolling, the rolling step of described rolling method that prevents thin strip steel rolling is: 1) through The standard roll gap size value of the roll gap is set in the control part; 2) When the end of the strip to be rolled is transported to the roll gap position of the rolling machine, the control part controls the actual roll gap size value to increase; 3) The strip to be rolled When the end of the strip passes through the roll gap, the thickness of the end of the thin strip rolled by the roll gap is greater than the standard roll gap size value; 4) After the time for the end of the strip to be rolled to pass through the roll gap reaches the set compensation time , the control part controls the numerical value of the actual roll gap size to decrease, and the rolling method for preventing collapse in thin strip steel rolling of the present invention increases the thickness of the end of the thin strip steel, replaces the sleeve, and does not need to set the sleeve The steps are cumbersome, and there will be no collapse of the steel coil without a sleeve, which will not affect the production of the next process, and the process of setting the sleeve is cancelled.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and more specifically relates to a rolling method for preventing collapse in thin strip rolling. Background technique [0002] In the field of steel strip rolling, the rolling process of thin strip steel is often involved. And when the thin strip is rolled, when the rolled thin strip coil is made into a steel coil, a sleeve needs to be set on the rolling machine to complete the thin strip coil to form a steel coil. However, when setting the sleeve, the upper sleeve action is cumbersome, which is likely to cause downtime and increase the failure rate. Moreover, many rolling mills are designed without considering the upper sleeve device, and there is no reserved space. Therefore, there is an obstacle in arranging the sleeve. If the sleeve is not provided, the steel coil will be easily collapsed after the coil rolling is completed, which will cause difficulties for the subsequent process to go o...

AI Technical Summary

Problems solved by technology

However, when setting the sleeve, the upper sleeve action is cumbersome, which is likely to cause downtime and increase the failure rate. Moreover, many rolling mills are designed without considering the upper sleeve device, and there is no reserved space

Therefore, there are obstacles in setting the sleeve. Without the sleeve, the steel coil will easily collapse after the coil is rolled, which will cause difficulties for the subsequent process to go online.

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