磨损指数测定仪标准修定及设备研制  

STANDARD MODIFICATION AND DEVELOPMENT OF ATTRITION INDEX DETERMINATOR

作　　者：李红梅[1] 白文博[1] 

机构地区：[1]中国铝业股份有限公司郑州研究院,河南郑州450041

出　　处：《轻金属》2003年第11期30-34,共5页Light Metals

摘　　要：本文详细比较了原有色行业标准与美铝标准的异同 ,从空气动力学理论分析推导出两标准的一致性 ,并通过计算说明本次修改标准的依据和结果 ,以及仪器制造需保证的精度 ;用喷动床理论计算出按标准进行测定时流态化管内氧化铝的循环速率。在此基础上研制的设备经多项测试达到了自动化程度高、操作简便、测定结果重现性好等目的 。Standards of Alcoa and former non-ferrous metal industry are compared in detail. Consistency of two standards are analyzed and derived from the theory of aerodynamics. The basis and results of this standard modification and the accuracy to be guaranteed in manufacture of this determinator is introduced through calculation. Circulating rate of alumina in fluidized tube is calculated by jet bed theory during measuring based on this standard. The instrument developed is high automatic, easy operation and good repeatability after many different tests, which provides reliable standard and instrument for product quality assessment for Chalco.

关 键 词：氧化铝 磨损指数 气体一元流动 收缩喷管 流态化 喷动床 

分 类 号：TH871.6[机械工程—仪器科学与技术]