论文部分内容阅读
通过对兰钢20mm×180mm带坯孔型设计及轧制后的实践比较，将设计参数及轧制结果加以对比分析，提出在一定轧件宽厚比范围内如何用公式计算轧件的宽展量。
By comparing the design of 20mm × 180mm billet of Lanzhou Steel and the practice after rolling, the design parameters and the rolling results are compared and analyzed. It is proposed that how to use the formula to calculate the spread of the rolling material within a certain range of aspect ratio .