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通过对一年多的生产检验数据进行统计分析,用回归分析法求出昆钢冷轧薄板St13洛氏硬度和抗拉强度间回归方程式,达到利用洛氏硬度值来预测在一定置信区间相对应的抗拉强度的目的。
Through more than one year of production test data for statistical analysis, using regression analysis method to get the Cold Stoke’s steel sheet St13 Rockwell hardness and tensile strength of the regression equation to achieve the use of Rockwell hardness to predict the corresponding confidence in a certain range The purpose of the tensile strength.