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通过对板流、助熔剂的选择及加入方式、称样量、分析时间等方面进行改进,解决了高碳铬铁中碳、硫元素分析经常出现燃烧释放慢、分析时间长、拖尾及数据不稳定等问题,提高了测定的准确性和稳定性。改进后的分析方法对标准样品进行准确度和精密度试验,分析结果与认定值相符,碳测定的相对标准偏差小于0.5%,硫测定的相对标准偏差为0.74%-2.80%,能够满足实验室快速分析高碳铬铁中碳、硫的需要。
Through the improvement of plate flow, flux selection and adding method, weighed amount, analysis time and so on, the carbon and sulfur analysis in high-carbon ferrochromium are often solved to slow combustion release, long analysis time, tailing and data Instability and other issues, improve the accuracy and stability of the determination. The improved analytical method for the accuracy and precision of the standard sample test, the analysis results and certified value, the relative standard deviation of carbon determination of less than 0.5%, the relative standard deviation of the determination of sulfur 0.74% -2.80%, to meet the laboratory Rapid analysis of high carbon ferrochrome carbon, sulfur needs.