Study On The Technology Of Width Precision In 1580mm Production Line Of An Steel Company

The width precision is a criteria for the hot rolled strips. With the continuously severe situation of the market, customers require much more strictly in the width precision of the hot rolled strips. Thus, improving the width precision has a certain significance in increasing the procession of products in the market.The control of width in the 1580 mm production line of AnSteel Company is studied. The functions of the secondary model in terms of width control are analyzed. The vertical roll wear compensation models are developed, experiment was made by collecting data to improve the setting in accuracy of the width. The execution process of the width control in the process of rolling steel strip from first level of automation is analyzed, to ensure the accuracy of width control and the stability of the whole control of the strip width. SP fixed width machine, E1 and E2 in vertical roll rolling process are mainly analyzed to control the width of the action, and vertical roll AWC in all kinds of control functions and control measures, improving the rolling process, the degree of response, and how to improve the precision of width on the level of automation work.To develop the technology of adjustable wide slab is difficult. It is an achievement through experiments. The wide slab less than 130 mm is achieved, and the qualified rolling technology, which ensures the control of strip width.