通过建立线材连轧流量方程，推导出拉钢系数与轧件拉缩宽度的关系式，并借此分析高速线材头尾超差问题。
The relationship between the pulling coefficient and the width of pull contract for rolled piece was derived by means of establishing flow equation during continuous rod rolling.
结果证明：理论计算的轧件头尾宽度与实轧测量值相符。
The results showed that the calculated width of rolled piece correspond to measured one.
系统地研究了不同宽度的轧件对轧机弹跳的影响。
The influence of work piece width on rolling mill spring is systematically discussed.
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