Rolling tension control method of double-rack four-roller mill

Abstract

The invention discloses a rolling tension control method of a double-rack four-roller mill. The rolling tension control method includes the steps of collecting parameters, wherein the parameters collected in the parameter collecting step include the parameters of the equipment, the parameters of to-be-rolled strips, the rolling technology parameters and the technological lubrication parameters; conducting initialization, wherein control variables are initialized; conducting loop optimization, wherein the tension is adjusted in the loop optimization step according to slipping factors, vibration factors, rolling pressures and rolling powers of a first rack and a second rack, whether quit conditions are met or not is judged, the current tension serves as the optimal tension if the quit conditions are met, and the loop optimization is continuously carried out on the tension if the quit conditions are not met. According to the rolling tension control method, the tension in the cold rolling process is optimized, and therefore the production efficiency is improved to the maximum degree on the premise that the sheet shape quality of a high-stage automobile sheet is guaranteed and defects such as slippage and vibration are avoided.

Description

technical field [0001] The invention relates to a strip processing technology, in particular to a method for controlling rolling tension of a double-stand four-high rolling mill used in a high-grade automobile plate cold rolling process. Background technique [0002] In recent years, with the rapid development of the automobile industry, automobile manufacturers have higher and higher requirements on the quality and output of automobile plates. For steel production enterprises and steel sales enterprises, in the face of the requirements and opinions put forward by automobile production enterprises, it is necessary to improve the quality and output of automobile plates. Automobile sheets are formed by strip processing, and there are two main ways to improve quality and output: upgrade the production equipment or improve the production process. [0003] The high cost and long transformation cycle of production equipment will often affect the market supply of enterprises and e...

AI Technical Summary

Problems solved by technology

In the past, the tension in the cold-rolling process of high-grade automotive sheets on a two-stand four-high mill was basically set by a combination of fixed tables and operator experience. not the tallest

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