Abstract
Abstract The high precision Four-high reversible cold rolling mill was successfully completed in Shanghai in 1989, all the work of the project, including design, manufacture, installing and test, was done with the cooperation of Shanghai Metallurgic Equipment General Factory and the University of Science and Technology Beijing. The cold rolling mill is used to produce high precise cold strip, so it is necessary that the function and precision of control system are powerful. In this paper, the function of computer control system is introduced, the software function is also described. The ideas of the control units that affects thickness precision seriously are introduced emphatically, the control result is given at last.
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