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一、前言 大多数合金元素能在钢中呈均匀分布,人们就有可能通过检验少量的试样(n克或n毫克)来确定整炉(批)钢材的化学成份。然而这种“确定”是有前提的:首先是合金元素在钢中的分布必须均匀;第二,所取试样必须有代表性;第三,分析的方法和操作必须是正确可靠。离开了上述前提中的任何一条,分析检验的结果就会失去其代表意义。 碳、硫等元素在大钢锭结晶过程中,会
I. INTRODUCTION Most of the alloying elements can be uniformly distributed in the steel and it is possible to determine the chemical composition of the entire batch of steel by examining a small sample (n grams or n milligrams). However, this “determination” is based on the premise that the distribution of the alloying elements in the steel must be uniform. Second, the samples taken must be representative. Third, the methods and operations of the analysis must be correct and reliable. Left any of the above prerequisites, the analysis of the test results will lose its meaning. Carbon, sulfur and other elements in the ingot crystallization process, will