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以国内外近年来在灰口铸铁中Ｓｉ／Ｃ比的影响的研究成果为依据，通过综合考虑Ｍｎ／Ｓ比、碳当量和Ｓｉ／Ｃ比对灰口铸铁力学性能的影响，采用正交试验方法设计实验方案，并对实验结果进行计算机方差分析和线性回归处理，提出了机械性能与成分之间的数学模式，预测了高强度灰口铸铁的最佳成分，并探讨了进一步开发灰口铸铁性能潜力的可能．
Based on the research results of the influence of Si / C ratio in gray cast iron at home and abroad in recent years, by considering the influence of Mn / S ratio, carbon equivalent and Si / C ratio on the mechanical properties of gray cast iron, orthogonal test Methods The experimental scheme was designed and the experimental results were analyzed by ANOVA and linear regression. The mathematical model between mechanical properties and composition was put forward, and the best composition of high strength gray cast iron was predicted. The further development of gray cast iron Potential of performance potential.