一、前言08 Al 钢汽车薄板是武钢一米七轧机生产的主要品种之一。国外文献曾报道,在制定其热轧工艺时,需要考虑钢中 Al N 相的固溶与析出,因此而希望板坯加热温度、开卷轧温度、终轧温度高,卷取温度低(俗称“三高一低”)。以使 AlN 在加热炉内的板坯中充分固溶,而在随后的热轧与卷取过程中又 First, the preface 08 Al steel car sheet is one of the main varieties of Wuhan Iron and the rice mill. Foreign literature has reported that in the development of its hot-rolled process, the need to consider the Al N phase in steel solid solution and precipitation, and therefore hope slab heating temperature, uncoiling temperature, finishing temperature, coiling temperature is low (commonly known as “ Three highs and one low ”). So that AlN in the heating furnace slab full solution, and in the subsequent hot-rolled and coiling process