鞍钢半连轧厂精轧机间的小活套装置是苏联50年代设计的。经26年运行实践,确认它的追套性能差,即为大张力“拉钢轧制”。为此,用加大板坯宽度保带钢名义宽度。加边量一般为50mm。1986年在半连轧厂大修中采用了鞍钢自动化研究所科研成果(详见《鞍钢技术》1987年第11期)进行改造,基本上实现了小张力“等 Anshan Iron and Steel semi-continuous rolling mill finishing mill set of small devices designed in the Soviet Union 50 years. After 26 years of operational practice, to confirm its chase performance is poor, that is, high tension “pull steel rolling.” To this end, increase the nominal width of slab steel width. Plus the amount of general 50mm. 1986 semi-continuous rolling mill overhaul used in the Anshan Iron and Steel Institute of Scientific Research (see “Ansteel Technology” No. 11 of 1987) to transform, basically achieved a small tension "and so on