The cause of strip width shrink (SWS) during hot continuous rolling is analyzed. A method to calculate SWS ratio is provided, some approaches for SWS reduction are discussed.
分析了窄带钢热连轧过程宽度拉缩的原因，给出了计算宽度拉缩率的方法，探讨了减少宽度拉缩的技术途径。
2
The HR Coil, which is the basic raw material, is passed through CPL to remove the oxides or scales from strip surface to enable further reduction of thickness to desired level in Cold Rolling Mills.
A new sizing process schedule was applied to modify the sizing process and width reduction accuracy was improved obviously, the cutting loss at strip head and tail end was decreased also.