Control method of rolling reduction of roller straightener based on plate profile characteristic

Abstract

The invention provides a control method of rolling reduction of a roller straightener based on a plate profile characteristic. The method comprises the following steps of acquiring a standard distanceand an actual distance from a plate profile instrument to the surface of a panel; making difference between the standard distance and the actual distance to obtain unevenness values of the panel; taking the maximum value and the minimum value in the unevenness values of the panel as two end points of an unevenness interval; dividing the unevenness interval into M parts, and drawing an equal unevenness curve by measuring points with equal unevenness values according to the unevenness values in equally divided positions; determining rolling reduction before correction by the ith straightening roller and calculating the rolling reduction corrected by the ith straightening roller according to a formula; and controlling the rolling reduction of the straightening roller according to the characteristic that the equal unevenness curved is taken as the plate profile. By means of the method, corresponding rolling reduction is dynamically applied according to the plate profile characteristic inthe straightening process of the straightening roller.

Description

technical field [0001] The invention relates to the technical field of straightening technology, in particular to a method for controlling the reduction of a roller straightening machine based on plate shape characteristics. Background technique [0002] At present, in the production process of special metal plates such as tungsten, molybdenum, titanium, zirconium, neutron absorbing plate, bimetal composite plate and other special metals, due to their own characteristics: high strength, high brittleness, easy to crack, and large difference in anisotropy; There are many products with many varieties and specifications, large spans, variable production processes, and poor deformation consistency; poor production continuity, narrow controllable deformation window, and serious plate shape defects. In the straightening process, how to carry out targeted straightening according to the characteristics of the plate and the characteristics of distortion and deformation is an urgent pr...

AI Technical Summary

Problems solved by technology

However, the straightening process in the traditional metallurgical industry is mostly set for the iron and steel industry, and there is a lack of special straightening process calculation methods for special metal characteristics, resulting in no targeted and effective calculation methods for the straightening and pressing process of special metal plates in the above industries, often appearing Sheet cracking due to excessive reduction, or plate shape defects cannot be effectively eliminated due to insufficient reduction

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