目前,在众多的轧制压力计算公式中,适合于厚件轧制使用的不多。有些公式可以用于计算厚件轧制压力,但缺乏理论上的充分依据。其原因在于影响厚件轧制压力的主要因素不是轧件与轧辊接触面上的摩擦条件,而是外端的影响。也就是说厚件轧制时,几何塑性变形区与物理塑性变形区相去甚远。迄今各种条件下的厚件轧制其物理塑 At present, in many rolling pressure formula, suitable for the use of thick rolling less. Some formulas can be used to calculate the thick rolling pressure, but the lack of a sufficient theoretical basis. The reason is that the main factor affecting the rolling pressure of the thick part is not the friction condition at the contact surface of the rolling stock and the roll but the influence of the outer end. In other words, when the thick-walled steel is rolled, the geometric plastic deformation zone is far from the physical plastic deformation zone. Thick plastic rolling has hitherto been physical under various conditions