中厚板轧制中的控冷装置及应用效果

CONTROL COOLING SYSTEM ANDITS APPLICATION TO PLATE ROLLING

应用控冷装置可将中厚板轧制过程分为三个阶段:1)高温轧制阶段;2)控冷轧制阶段;3)轧后冷却阶段。这样的中厚板控冷轧制方法,把控轧控冷紧密地结合在一起,可以有效地控制轧制温度和终轧温度,使轧后铁素体晶粒得到细化,这对提高钢板各项力学性能和提高产量有明显的效果,对于轧制能力不足或单机架生产的中厚板轧机,效果尤为显著。

The plate rolling process can be divided into three steps with control cooling device: 1) Hotrolling; 2) Control rolling; 3) Control cooling after rolling. By combining closely control rollingwith control cooling, the rolling temperature and finishing temperature can be controled closely,so that the ferrite crystallites in rolled plate become fine. which improves mechanical propertiesand productivity of plate. Above all, for increosing the rolling capacity of existing mill or forthe plate mill of only one stand, the results would be much better.