专利汇可以提供Controlling method for sheet breadth in continuous hot rolling mill专利检索,专利查询,专利分析的服务。并且PURPOSE: To improve the control accuracy for the sheet breadth, and to improve the yield of product, by arithmetically predicting the sheet breadth variation on the run-out side on the basis of the temperature distribution of a rolled material and the interstand traveling time, and by controlledly correcting the interstand tension on the upstream side.
CONSTITUTION: The temperature of a steel sheet 1 is measured by a temperature sensor 2 on the feed-in side of a hot finishing mill; the measured value is inputted to an arithmetic device 3 which then arithmetically predicts the temperature variation of the steel sheet 1. The result of this operation is inputted to a computing control device 5. Meanwhile, the rotational speed of each rolling roll to be outputted from pulse generators PG1WPG3 is inputted to an arithmetic device 4 which then operates the time required by the temperature predicted part of the steel sheet 1 in traveling from the 1st stand to the 2nd stand; thus operated time requirement is inputted to the computing control device 5. The unit 5 arithmetically predicts each interstand breadth variation on the basis of this input and each interstand reference tension. On the basis of thus predicted breadth variation, each interstand tension to be given to the steel sheet 1 is operated, and a command signal is given to a driving part of each looper R1WR3.
COPYRIGHT: (C)1982,JPO&Japio,下面是Controlling method for sheet breadth in continuous hot rolling mill专利的具体信息内容。
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