一、前言热轧窄带钢由于通用性强,在冶金、建筑、机电、轻纺和手工业等部门获得了广泛的应用。因此,近十年来得到了迅速发展。目前全国有各种形式的热窄带钢轧机40多套,除1978年以后相继投产的6个连续式热窄带钢轧机,实现了由初轧坯、连铸坯或钢锭一次轧制成带钢的生产工艺外,其余仍为二火或多火成材的横列式或纵列式轧机。虽然窄带钢轧机设计能力可达300万吨,但窄 First, the preface Due to the versatility of hot rolled narrow strip steel, in metallurgy, construction, mechanical and electrical, textile and handicrafts and other departments have been widely used. Therefore, rapid development has been achieved in the past decade. At present, there are more than 40 sets of hot strip mills all over the country. In addition to the 6 continuous hot strip mills that have been put into operation successively since 1978, the rolling of strip from primary billet, slab or ingot The production process, the rest is still two fire or more firewood in-line or tandem mill. Although narrow strip mill design capacity of up to 3 million tons, but narrow