Development of control sample of gradeB cast steel for spectral analysis
ZHANG Qing1,GAO Jun*2, LIU Ying3，ZHANG Yong4
1Tangshan college, Tangshan 063020, China；2Tangshan Railway Vehicle CO,Ltd., Tangshan 063035, China；3Beijing General Research Institute for Nonferrous Metal, Beijing 100088, China；4Central Iron & Steel Research Institute，Beijing 100081, China
Abstract：The composition design of control sample was carried out based on the product standard of gradeB cast steel. The standard samples containing carbon, sulfur, silicon, manganese, phosphorus, copper and nickel were developed by proper melting and casting technologies. The metallographic characterization indicated that the prepared standard sample exhibited uniform and dense structure without defects such as inclusion, air hole and crack. The uniformity test was conducted by singlefactor variance analysis method. The uniformity was good and could meet the requirements of standard sample for spectral analysis. The certified values of control sample were obtained by several accurate and reliable analysis methods. Moreover, the analytical results were treated by mathematical statistics to obtain the accurate value and uncertainty of testing elements. This control sample could be applied to the ladle analysis and correction analysis of product quality control of gradeB cast steel.
张清,高军*,刘英,张勇. B级铸钢光谱分析用控制样品的研制[J]. 冶金分析, 2012, 32(02): 76-79.
ZHANG Qing,GAO Jun*, LIU Ying，ZHANG Yong. Development of control sample of gradeB cast steel for spectral analysis. , 2012, 32(02): 76-79.
