摘要
在1422热连轧产线上生产宽薄规格集装箱板(如1.6 mm×1 185 mm)的试轧初期,存在较多问题,如因精轧机组负荷偏大,要求中间坯厚度较薄,同时要提高出炉温度,但会带来表面氧化铁皮问题,后段轧机没有钢也会出现压靠(即负辊缝)导致有钢信号提前产生以及活套偏高等问题;通过优化出炉温度、除鳞制度、有钢信号的逻辑条件、活套的张力系数以及精轧机架的负荷分配等手段,有效地解决了上述问题并提升了实物质量。
Since the mill capacity limitation,many problems happened in the trial production of thin gauge container sheet such as spec of 1.6mm×1185mm on a 1422mm hot strip mill.A critical problem is that thinner middle slab as well as higher reheating temperature is needed to reduce the finishing rolling load,which resulted in surface oxide scale defect.Besides,due to lower mis（metal in stand） force for the container sheet,the mis signal of later stands usually turned on in advance,thus leading to early loop action.To solve these problems and improve the product quality,investigations were carried out and satisfactory results has been obtained by optimizing the production process including reheating temperature,descaling,logical condition of mis signal,tension coefficients,load distribution and so on.
出处
《中国冶金》
CAS
2011年第2期41-44,共4页
China Metallurgy
关键词
集装箱板
表面质量
负荷分配
活套高度
container plate
surface quality
load distribution
loop height
