冷轧薄板厚度检测及其自动控制(英).doc

PAGE  PAGE 6 The Research and Application of Thickness Gauge and the Automatic Control System of Thickness in the Cold Rolled Sheet Steel Zhang Lin1 Yao Youling2 （1、The Automation Department of Laiwu Steel Group，Laiwu ,271104,China; 2、The Cold Rolling Plant of Lai Steel Group, Laiwu,271104,China，+86lgzgyao@163.com） Abstract: The paper relates the principle and the way of the automatic thickness measurement for cold rolled sheet and type selection of thickness gauge. The construction of the cold rolled sheet thickness automatic control system is discoursed. On the basis of measure result and measured thickness signal, we adopt intelligent control way to achieve the automatic gauge control(AGC) of the feedback AGC、the monitor AGC、the flow rate AGC. Through the emulation practical application of AGC system, its response speed and thickness accuracy all come to national standard, We apply this system on the thickness automatic control system of Laiwu Steel 1500mm cold rolling mill, it satisfies the needs of the user. It has higher economic benefit and promotional value. Keyword: automatic-control cold rolled sheet X-ray measure thickness 1、Introduction Thickness accuracy is one important quality so as to obtain high-quality plates and higher index. The thickness accuracy and evenness have a economic benefit. It is well known that the thick- direct bearing on the plate performance and market ness measuring accuracy is the key factor to sales status. In recent years, domestic and foreign realize the high-accuracy control of plate thickness related enterprises and scientific research institutions On the basis of drawing lessons from the similar plate strengthen the research on the control of plate thickness , the 1500mmUCM cold mill in the cold rolled plant of Shandong Laigang Group selects RM215 X-ray thickness gauge to measure the thickness of cold rolled plate online. It also implements alloy compensation t