氧化铝磨损指数测量不确定度的评定  

Evaluation of the uncertainty for determining the abrasiveness index of alumina

作　　者：王蓓蓓 Wang Beibei(Mining Corporation Limited of CHALCO,Zhengzhou 450041)

机构地区：[1]中铝矿业有限公司,河南郑州450041

出　　处：《铝镁通讯》2021年第2期14-16,共3页

摘　　要：根据YS/T 438.2-2013《砂状氧化铝物理性能測定方法第2部分:測定氧化铝磨损指数》,分析来自称量过程和仪器测定过程的各种不确定度影响因素,建立了测量不确定度评定数学模型,对各不确定度分量进行了评定与计算。当磨损指数为19.0%时,其测量结果的扩展不确定度为0.3%(k=2)。The method for evaluating the uncertainty of measurement for determining the abrasiveness index of Alumina was described.The determination of abrasiveness index of alumina,factors affecting uncertainty form procedures of weighing and instrument detection were analyzed and evaluated.A mathematic model of the uncertainty evaluation of determination was established.The uncertainty components were calculated.When the abrasiveness index of alumina was 19.0%,the expanded uncertainty was 0.3%(k=2).

关 键 词：物理性能 不确定度 磨损指数 

分 类 号：TQ1[化学工程]