看譜分析应用于鋼材及合金的分类工作,其快速、簡便及节約,非其他分析方法可及,所以国內外生产单位中已广泛采用。近年来扩大至炉前分析,但由于出現5%誤差的可能,因而无法满足炉前分析要求,有进一步改进的必要。过去很多看譜工作者为了提高看譜分析准确度,对設备及工作方法进行多方面的改进,获得不同的效果。提高分析准确度及减少誤差的改进方法, Spectral analysis used in the classification of steel and alloy work, its fast, easy and economical, non-other analytical methods available, so the domestic and foreign production units have been widely used. In recent years, it has been expanded to analysis of furnace front. However, due to the possibility of 5% error, it is unable to meet the requirements of furnace front analysis and there is a need for further improvement. In the past many see spectrum workers in order to improve the accuracy of spectral analysis, equipment and methods of work for many improvements, with different results. Improve the accuracy of analysis and reduce the error improved method,