TY - JOUR T1 - The Design of In-Line Temperature Control Systems for Bar Mills AU - , E.C. Obinabo AU - , C.I. Ajuwa JO - International Journal of System Signal Control and Engineering Application VL - 1 IS - 2 SP - 130 EP - 138 PY - 2008 DA - 2001/08/19 SN - 1997-5422 DO - ijssceapp.2008.130.138 UR - https://makhillpublications.co/view-article.php?doi=ijssceapp.2008.130.138 KW - Control system design KW -thermal housing KW -spatial heat flow KW -temperature distributions KW -temperature control AB - This study presents a workable, cost-effective proposal for eliminating the thermal distortions observed during production of rolled steel bars in billet mills. Manipulation of the temperature distributions in the workpiece to produce the desired shape of the final product was achieved through control of the heat supplied to a thermal housing designed for installation on the cooling bed to enhance homogenization of the heat flow across the dimensions of the product as it cools down from the final rolling temperature of about 900°C. The control system matches the changes in the operation of the rolls by introducing the concept of residence time the effect of which was the ultimate homogenization of the product temperature and elimination of the internal stresses. ER -