连轧张力变形微分方程是连轧理论的核心问题,但直到今日对连轧张力微分方程还未得到一个公认的精确表达式。上海金属(钢铁分册)发表了张力微分方程的正确性问题的讨论文章,必将促进连轧理论的发展。一、连轧张力变形微分方程争论情况 1947年,提出了确定两机架间连轧件的弹性拉伸ε的微分方程:(dε)/(dt)=1/l[v_2’-v_1(1+ε)] (1)式中:ε—两机架间钢带的相对拉伸率v_2’—第二机架钢带入口线速度v_1—第一机架钢带出口线速度 Tensile strain differential equation of continuous rolling is the core problem of continuous rolling theory, but until now, we have not got a recognized accurate expression of tension differential equation of continuous rolling. Shanghai Metals (Steel Volume) published a discussion article on the correctness of tension differential equations, which will surely promote the development of the theory of continuous rolling. First, the rolling tension strain differential equation controversy In 1947, put forward to determine the elastic tension between two rolling rack elongation ε differential equation: (dε) / (dt) = 1 / l [v_2’-v_1 (1 + ε)] (1) Where: ε-relative elongation of the strip between the two racks v_2’- line speed of the second rack strip inlet v_1-line speed of the first rack strip exit