离心浇铸制样X射线荧光光谱测定铬铁中铬、硅、磷  

Determination of chromium, silicon, phosphorus in ferrochrome by X-ray fluoresence spectrometry using sample preparation technique of centrifugal casting

作　　者：陆晓明[1] 金德龙 林国强 孙福民 

机构地区：[1]上海宝钢股份有限公司技术中心,上海201900 [2]上海申佳铁合金厂,上海200431

出　　处：《冶金分析》2005年第1期45-48,共4页Metallurgical Analysis

摘　　要：采用离心浇铸制样X射线荧光光谱测定铬铁中Cr,Si和P,能克服铁合金存在的矿物效应和颗粒效应,该方法简单、快速、精度高、准确。当Cr,Si,P的质量分数分别为66 04%,0 64%,0 016%,其相对标准偏差分别为0 18%,3 12%,6 25%。该法测定值与化学值相比,一致性较好,能满足常规分析要求。A sample preparation technique of centrifugal casting is used for XRFS analysis of Cr,Si,P in ferrochrome.The mineral effect and particle-size effect of ferrochrome can be eliminated by using the technique.When the average contents of Cr,Si,P in the sample are 65.04%,0.64%,0.016% respectively,the relative standard deviations of the determination are 0.18%,3.12%,6.25% respectively.The results were in good agreement with chemical method. The method was satisfactorily served for daily analysis.

关 键 词：铬铁 铁合金 效应 一致性 准确 X射线荧光光谱 离心浇铸 相对标准偏差 差分 颗粒 

分 类 号：TG115[金属学及工艺—物理冶金]