厚钢板轧制过程变形渗透规律试验研究

通过单道次模拟轧制试验,研究了不同压下率和形状比时坯料厚度中心的变形渗透规律,结果表明,随形状比增加,中心渗透变形率增大;试验条件下,当形状比达到0.7时,轧件中心渗透变形率已达到50%以上。在特厚板实际生产中,要根据轧机及原料条件尽量提高单道次轧制形状比,并在最少道次内保证将形状比提高到0.5以上。

Study on the Deformation Extension of Heavy Plate Rolling Process

By single pass rolling simulation test, the relationship of pass reduction and deformation extension was studied. The results showed that with the increase of the shape ration, the deformation extension turned higher;In the test condition, when the shape ration is bigger than 0.7, the deformation extension rate of the plate center reaches 50%above. In the practice production of super thick plate, the single pass shape ration should be increased under the up limit permission of the mill ability, and assuring get the shape ration bigger than 0.5 in fewest passes.