论文部分内容阅读
轧机的最小可轧厚度是说明轧机极限轧制条件的一个参数。本文是在小型20辊轧机上实测最小可轧厚度,并与理论公式计算结果进行比较的实验结果。其目的是为轧机设计、轧辊直径的选择等提供依据。 本文的实验方法是选择不同直径和不同弹性模量的轧辊及不同加工硬化的试验材料,按常规轧制法以最大的轧制压力反复轧制,假定道次压下率r<2％时达到了极限轧制条件,此时的厚度即为最小可轧厚度。其结果,完全符合轧制变化的规律。当轧辊直径比较大时(大于φ16mm),实测值与理论计算值相接近。
The minimum rolling thickness of the mill is a parameter that explains the mill’s ultimate rolling conditions. This paper is the result of experiment on the minimum thickness of rolled steel that can be measured on a small 20-roll mill and compared with the theoretical formula. Its purpose is to provide the basis for the design of the rolling mill and the selection of the roll diameter. The experimental method of this paper is to choose different diameters and different elastic modulus of the roll and different work hardening test materials, according to the conventional rolling method to the maximum rolling pressure repeated rolling, assuming the pass reduction rate r <2% reached The limit rolling conditions, the thickness at this time is the minimum thickness can be rolled. The result, in full compliance with the law of rolling changes. When the roll diameter is relatively large (greater than φ16mm), the measured value is close to the theoretical value.