应用拉伸试验数据分析指导二次冷轧高强马口铁基板生产

Using the Analysis of Tensile Test Data to Direct the Production of DR High Strength Tinplate

本文介绍了二次冷轧高强马口铁基板冷轧总压下率对制耳率的影响,研究了退火温度对硬度的影响及二次冷轧压下率与成品屈服强度的关系,通过对退火后钢带拉伸试验曲线均匀延伸段数据进行分析,推测出加工硬化曲线及二次冷轧压下率与屈服强度的关系,经实践验证,屈服强度预测值与实际值偏差小于15MPa。可用于指导二次冷轧生产高强马口铁基板总压下率设定。

It introduced the effect of total reduction ratio on the earring ratio of the double cold-reduced high strength tin(chromium)base cold rolled plated,and studies the influence of annealing temperature on hardness and the relation of the secondary cold rolling reduction ratio and the yield strength of the finished product,by analyzing the uniform extension curve data of the annealing steel strips’tensile test to estimate the work hardening curve and the secondary cold rolling reduction rate on the yield strength,it has been verified by practice that the deviation of the yield strength prediction and the actual value is less than 15 MPa.It can be used to guide the setting of total reduction rate of high strength tin(chromium)plate produced by secondary cold rolling.