Control method and device for working roll bouncing between passes of steckle mill

Abstract

The invention relates to a control method for working roll bouncing between passes of a steckle mill. The control method comprises the steps that working roll experience displacement of the passes corresponding the variety of a current blank is acquired from a preset working roll displacement database; the working roll experience displacement of the current pass is determined according to the working roll experience displacement of the passes; the position of a working roll is adjusted according to the working roll experience displacement of the current pass, wherein before rolling of the current pass is carried out on the blank, the working roll is driven to move in the axis direction of the working roll; and when the moving displacement of the working roll reaches the working roll experience displacement of the current roll, the working roll is controlled to stop moving. According to the control method, control over displacement of each pass of the working roll can be automatically carried out, and therefore the product quality is improved, the surface quality of the product is guaranteed, in addition, the bending effect of the working roll can also be improved, and excessive abrasion to the working roll is reduced.

Description

technical field [0001] The invention belongs to the technical field of iron and steel rolling, and in particular relates to a method and a device for controlling the movement of work rolls in the pass and pass of a steckel mill. Background technique [0002] Hot rolling refers to the rolling of steel above the crystallization temperature of the steel. Because hot rolling has low energy consumption, high metal plasticity, and has the characteristics of improving the processing performance of metals and alloys, hot rolling has been widely used in the production of steel materials. [0003] Such as figure 1 As shown, the existing steel coil rolling mill 10 has two work rolls 11 arranged oppositely, and the steel coil 12 passes between the two work rolls 11, and the two work rolls 11 carry out multiple passes of the slab of the steel coil 12 Rolling back and forth makes the steel coil slab be rolled into a slab that meets the required thickness. In order to ensure that the su...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method and device for controlling the movement of work rolls in the pass and pass of the steel coil mill, so as to solve the problem that the current steel coil mill can only realize the setting of the movement amount between the steel coil and the steel coil, which may easily cause the work roll Excessive surface wear and poor surface quality of rolled slabs

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