摘要
采用真空感应熔炼法制备了含锰中间合金,研究了锰源、Mn/Al质量比、预热时间和精炼时间等因素对含锰中间合金组成的影响,探讨了含锰中间合金替代传统“Mn+Al”投料对制备含锰AB5型稀土储氢合金的影响。结果表明,采用锰片作锰源比锰粉作锰源具有更高的熔炼收率;不同Mn/Al质量比下均能形成含锰中间合金;随着预热时间增加,熔炼收率先增加后减小,适宜的预热条件为:4 kW功率下预热10 min;随着精炼时间增加,熔炼收率略有降低,适宜的精炼条件为:15 kW功率下精炼1 min。与“Mn+Al”为原料相比,采用MnAlNi合金和MnAl合金制备稀土储氢合金的平均熔炼收率分别提高了0.37%和0.78%。使用含锰中间合金制备AB5型稀土储氢合金在优化收率的同时不影响储氢性能,在实际工业生产中具有较好效果。
Manganese-containing master alloy was prepared by vacuum induction melting.Effects of factors,such as manganese source,Mn/Al mass ratio,preheating time,and refining time on the composition of the manganese-containing master alloy were studied,and the influence of manganese-containing master alloys replacing the traditional“Mn+Al”feed on the prepared manganese-containing AB5-type rare-earth-based hydrogen storage alloy was also discussed.The experimental results show that compared to manganese powder,manganese flakes as manganese source can bring higher melting yield.Manganese-containing master alloys can be formed with different Mn/Al mass ratios.As the preheating time is prolonged,the melting yield firstly increases and then decreases,and the optimal condition for preheating is 10 minutes at a power of 4 kW.As the refining time increases,the melting yield decreases slightly,and the optimal condition for refining is 1 minute at a power of 15 kW.The average melting yields of rare-earth-based hydrogen storage alloy prepared with MnAlNi alloy and MnAl alloy are increased by 0.37% and 0.78% respectively than that with“Mn+Al”as raw material.The preparation of AB5-type rare-earth-based hydrogen storage alloy with manganese-containing master alloy can optimize the yield,with the hydrogen storage performance not influenced.The application of this method in practical industrial production brings good effect.
作者
郑波
谢懋良
任权兵
赖华生
冯兰
刘雯雯
皮雄
李荣华
林昊
ZHENG Bo;XIE Maoliang;REN Quanbing;LAI Huasheng;FENG Lan;LIU Wenwen;PI Xiong;LI Ronghua;LIN Hao(JiangxiJiangwu Haoyun Technology Co.,Ltd.,Nanchang 330096,Jiangxi,China;GanzhouNonferrous Metallurgy Research Institute Co.,Ltd.,Ganzhou 341000,Jiangxi,China)
出处
《矿冶工程》
北大核心
2025年第5期170-175,共6页
Mining and Metallurgical Engineering
基金
江西省重点研发计划项目(20203BBE53055)
南昌市科技重大项目(洪科字(2023)137号)
江西钨业控股集团有限公司科技计划项目(JXTC-25A-04)。
关键词
真空感应熔炼
稀土储氢合金
中间合金
锰
AB5型储氢合金
vacuum induction melting
rare-earth-based hydrogen storage alloy
master alloy
manganese
AB5-type hydrogen storage alloy
