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对钢轨性能进行数理统计,推导出计算强度、延伸率、断面收缩率的经验公式,对予测、评价已知成份的钢轨性能;根据性能要求设计、调整或制定合理的内控成份;分析生产工艺因素的影响及稳定性;对五个基本元素给予性能的影响作出定量分析等方面是有益的。本文以数理统计回归分析方法推导出一些经验公式,以进行上述分析的尝试。60kg/m钢轨交货检验数据选用329罐,只有抗张强度、延伸率数据较全,而屈服强度过去采用目测方法测定,数据既分散,又不太准确,断面收缩率因不是交货条件,生
Mathematical statistics on the performance of the rail are deduced to calculate the strength, elongation, reduction rate of cross-section of the empirical formula, to predict and evaluate the performance of the known components of the rail; according to performance requirements design, adjust or develop a reasonable internal control components; analysis of production technology The influence and stability of the factors; it is beneficial to quantitatively analyze the influence of the performance of the five basic elements. In this paper, mathematical statistics regression analysis method to derive some empirical formula for the above analysis attempt. 60kg / m rail delivery test data selected 329 cans, only the tensile strength, elongation data more complete, and the yield strength in the past by visual method, the data are not only scattered, not accurate, the cross-sectional shrinkage is not due to delivery conditions, Health