热轧带钢镰刀弯问题研究

首先从理论上分析板形缺陷的成因来源于板宽方向上各条纵向纤维的延伸不均,这种延伸不均的实质是带钢内部的残余应力分布不均,而镰刀弯产生于不对称的不均匀延伸;然后指出热轧带钢产生镰刀弯的几个问题,并分析产生镰刀弯的原因;最后提出了对策和改进措施。

Studying on the Question of Hot Rolling Strip Sickle Bend

First,it is theoretically analysed that the reason of plate-type defects comes from extended inequality of the longitudinal fibers which essence is the uneven distribution of residual stress inside strip and Sickle Bend comes from asymmetric extended inequality.Then some questions about sickle bend of hot rolling strip are pointed out and the reason of sickle bend.Last countermeasures and improvements are proposed.