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通过研究稀土原料中的杂质及合金的微观组织，探讨了用感应炉批量生产ＡＢ５型储氢合金性能波动的可能原因。储氢合金的性能由合金的成分、微观组织和表面状态决定。合金性能波动除受浇铸时的冷却条件影响外，还与稀土原料中铁、镁等杂质及熔炼工艺因素（包括单位产量、熔炼温度、时间气氛及炉频等因素）有关
By investigating the impurities in the rare earth materials and the microstructure of the alloy, the probable causes of the fluctuation in the performance of the AB5-type hydrogen storage alloy produced by an induction furnace are discussed. The properties of hydrogen storage alloys are determined by the composition, microstructure and surface state of the alloy. In addition to the influence of the cooling conditions during casting, the alloy performance fluctuation is also related to the impurities such as iron and magnesium in the rare earth raw materials and the smelting process factors (including factors such as unit output, melting temperature, time atmosphere and furnace frequency)