一、绪言在钢铁生产中,经常对设备和钢材进行冷却,但以前人们认为水的资源丰富,又很容易得到,而且冷却对节能也没有多大贡献,因此不太关心对冷却的研究。近年来,人们认识到,在轧钢生产中,为了提高产品质量和开发新产品,必须进行精确的冷却。而且运用控制冷却对节能也有明显效 I. INTRODUCTION In steel production, equipment and steels are often cooled. However, in the past, people thought water was abundant and readily available, and cooling did not contribute much to energy saving. Therefore, they did not care much about the study of cooling. In recent years, people realized that in the rolling production, in order to improve product quality and develop new products, must be precise cooling. And the use of controlled cooling also has significant effect on energy saving