在现行的轧钢工艺学教材中已明确指出:当板凸量减小到一定程度时,轧件一旦走偏就会产生两侧厚度差、板形弯曲、轧件横向位置不稳定甚至造成刮框事故。因此为了轧制过程稳定,要求板凸量必须不小于某一最小限制值,这就是所谓的最小 In the current rolling technology textbook has clearly pointed out: When the plate is reduced to a certain degree of convexity, once the deviation will result in rolling on both sides of the thickness difference, the plate bending, rolling horizontal position instability or even cause frame ACCIDENT. Therefore, in order to stabilize the rolling process, the required amount of plate convex must not be less than a certain minimum limit, which is the so-called minimum