1.前言在普通轧机上,用不同直径的轧辊配对时,其直径差△D被称为“压力”。由于大辊的线速度大于小辊,因而使轧件向小辊一侧弯曲,由此把上辊直径大于下辊直径称为“上压力”,反之,称为“下压力”。在型钢生产中,根据上述概念,轧制线在轧辊中 1. INTRODUCTION In ordinary rolling mills, the diameter difference ΔD is called “pressure” when paired with rolls of different diameters. Since the linear velocity of the large roller is greater than that of the small roller, the rolled material is bent toward the small roller, whereby the diameter of the upper roller is greater than the diameter of the lower roller. This is called “upper pressure” and vice versa. In the steel production, according to the above concept, rolling line in the roll