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利用逐步回归分析的方法 ,确定了 4 0MnBH钢的淬透性与化学成分之间的回归方程 ,以便分析化学成分对淬透性的影响程度 ,并应用概率论推导出求解成分内控规范的联立方程 ,使淬透性合格概率大于 97 5%。
The regression equation between the hardenability and the chemical composition of 4 0MnBH steel was determined by the stepwise regression analysis to analyze the influence of the chemical composition on the hardenability and to use the theory of probability to deduce the complex cubic Cheng, the hardenability pass probability of more than 97 5%.