NEW COILING TEMPERATURE CONTROL ON HOT STRIP MILL

An advanced cooling equipment and a new control system have been devel oped in order to improve the accuracy of coiling temperature and to en able the flexible cooling pattern control after hot rolling. The main feature of new cooling equipment is the installation of the large capa city overhead tank, a high density layout pipe laminar flow header and multi-spray header. In addition, a new computer system has been intro duced for coiling temperature control and improvement of the temperatu re calculation model. Consequently, the accuracy of the coiling temper ature has been improved. By applying this new cooling equipment, vario us kinds of high-strength steel sheets with superior formability have been produced.