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近廿年来,在物理冶金方面人们所取得的最大发展之一,就是确定了化学成分和显微组织与铁素体—珠光体的强度和冲击韧性之间的关系。但以往文献所给出的公式,都无法直接用于生产过程控制产品的性能。为了寻找一种简单易行的控制产品性能的方法,从现场取得厚度规格为17～26mm 的115批生产统计数据,用逐步回归分析的方法求得各项性能指标的最优回归方程。分析了化学成分和
Nearly 20 years, one of the greatest developments people have made in physical metallurgy is the determination of the relationship between chemical composition and microstructure and the strength and impact toughness of ferrite-pearlite. However, the formulas given in the previous literature can not be used directly for the performance of the production process control products. In order to find a simple and easy method to control the performance of products, 115 batches of production statistics with the thickness of 17 ~ 26mm were obtained from the field. The optimal regression equation of each performance index was obtained by stepwise regression analysis. Analyzed the chemical composition and