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。

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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.

提出了新的减宽压下规程，对减宽技术进行了改进，减宽精度明显提高，带钢头尾部的切损减少。

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SCRAP REDUCTION :To use the whole width of the coil, reducing to the minimum the distances between disc to disc to the strip edges, with a consequment, reduction of the scrap quantity.

减少废料：充分利用卷料的宽度， 采用高精密伺服电机驱动系统控制， 使圆片间距和圆片到料边的距离减少到最小， 从而减小废料量。

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