冷轧带钢轧制中的新技术—边降控制

NEW TECHNIQUE FOR COLD ROLLING-EDGE DROP CONTROL

在轧制过程中,由于轧辊上的轧制载荷由加载区至无载区逐渐过渡,会在板带边部产生边降即厚度的减少现象。为减少边降对板带质量的影响,可在轧制过程中采用边降控制技术:在轧制过程中边降控制冷却系统,通过轧辊由相应的温度分布不同而得到热凸度突变来减少板带边降;也可采用边降控制辊,结构上对辊子边部区域进行弱化,减少轧辊轧制对板带边部的影响。

In the cold rolling process,edge drop refers to the thickness reduction of the strip in the edge area because of decreasing of roll flattening from the loaded to the unloaded parts of the roll barralTo compensate edge for decreasing influence on the strip quality,in modern cold rolling process,new control concept and techno logy-Edge Drop Control are neededThe goal of the Edge Drop Control cooling system is to achieve a substantially abrupt reduction of the thermal crown in the strip edge area or the Edge Drop Control rolls system is used to make the roll somewhat weaker in the edge region