The Synthetic Automatic Gauge Control System of High Precision Cold Rolling Mill

In order to ensure that the rolling mill can produce high precision sheet strip with ±4μm thickness tolerence, the advanced control idea and method of all hydraulic push-up, censiant roll gap contrcol and computer synthesis are applied. The measures to take according to the various factors that cause thickness tolerence are discribed. At last, the curve of thickness tolerence in practical rolling process is given.