Rolling speed optimization method aiming at profit control in tandem cold rolling process

Abstract

A rolling speed optimization method with benefit control as a target in the cold continuous rolling process mainly comprises the following steps that 1, field parameters are collected; 2, unit friction characteristic parameters are collected; 3, unit benefit parameters are collected; 4, relevant parameters are defined; 5, the outlet speed, the reduction rate, the gate absolute draught and the equivalent tension influence coefficient of an ith rack are calculated; 6, the friction coefficient of the ith rack is calculated; 7, the rolling force of the ith rack is calculated; 8, the working roll elastic flattening radius, the outer friction force influence coefficient, the forward slip valve and the rolling torque of the ith rack are calculated; 9, the slip factor of the ith rack is calculated; 10, the slip index of the ith rack is calculated; 11, the rolling power of the ith rack is calculated; 12, the total electricity consumption of all racks of a unit is calculated; 13, a unit time benefit control target function expression is constructed; and 14, the optimal rolling speed is output. The reasonable target value for rolling speed control is set, enterprise cost is effectively reduced, and production efficiency is improved.

Description

technical field [0001] The invention belongs to the field of metallurgical cold rolling, and in particular relates to a rolling speed optimization method in the continuous cold rolling process. Background technique [0002] In recent years, due to the huge demand of household appliances, automobiles, electronics, aerospace and other industries, the cold-rolled strip production industry at home and abroad has achieved rapid development. In the past, in the production process of cold-rolled strips, the focus of on-site attention was mainly on the control of quality indicators such as shape, thickness, and surface defects. However, with the increasingly fierce competition in the steel industry and the decline in the overall profit margin of the steel industry, cost control in the production process of cold-rolled strips has been placed in an equally important position as quality control. Because for iron and steel enterprises, no matter how high the product quality is under th...

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Problems solved by technology

[0003] Aiming at the problem that the increased benefit due to the reduction of power consumption per ton of steel is lower than the reduced benefit due to the reduction of production capacity due to the artificial reduction of production capacity in order to reduce the power consumption per ton of steel in the tandem cold rolling mill, the invention provides a cold rolling mill Rolling speed optimization method aiming at benefit control in continuous rolling process

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