研究了火花源原子发射光谱法[1]测定普碳、低合金钢中氮元素的方法.通过干扰元素的校正,改善了曲线拟合线性关系.自制控样类型校正,消除了系统误差.因熔融热导法对钢中氮的分析周期长、样品难加工、分析成本高的问题,应用ARL-4460光电直读光谱仪可以对转炉、精炼、中包试样中的氮元素快速分析.为公司一钢轧厂转炉-精炼-连铸流程的钢水氮元索的快速监测创造了条件,很好的满足炼钢工艺要求.%The paper makes a research on determining nitrogen in carbon and low alloy steel by spark source atomic emission spectrometry method.It improves curve fitting linear relationships by correcting interfering elements,and eliminates systematic errors by homemade control sample correction.As the analysis cycle is long by using fusion thermal conductivity method,the sample processing is difficult,and analysis cost is high,the ARL-4460 optical direct reading spectrometer is used to analyze the nitrogen in the converter,refining,and sample,providing reference for the rapid monitoring of nitrogen in the process from converter,refining to casting of steel rolling,and meeting the demand of steelmaking process.
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