镁基新能源储氢电池负极材料的铸造工艺研究  

Study on Casting Process of Magnesium Based Negative Electrode Material for New Energy Hydrogen Storage Battery

作　　者：郑欣 杨宇玲 刘荣海 ZHENG Xin; YANG Yuling; LIU Ronghai(Electronic Research Institute, Yunnan Power Grid Co., Ltd., Kunming 65000, China)

机构地区：[1]云南电网有限责任公司电力科学研究院

出　　处：《热加工工艺》2018年第19期112-114,共3页Hot Working Technology

摘　　要：为了提高镁基新能源储氢电池负极材料的储氢性能,采用不同的铸造工艺参数对其材料进行了铸造,并进行了储氢性能的测试与分析。结果表明：与30 mm/min相比,铸造速度38 mm/min的试样的最大吸氢量增大了20%,放氢平台压力减小了4%;与740℃相比,铸造温度700℃的试样的最大吸氢量增大了15%,放氢平台压力减小了4%。适宜的铸造速度和铸造温度能显著提高试样的储氢性能。优化的铸造速度和浇注温度分别为38 mm/min和700℃。In order to improve the hydrogen storage performance of magnesium based negative electrode material for new energy hydrogen storage battery, the materials were cast by using different casting process parameters. And the hydrogen storage properties was tested and analyzed. The results show that compared with that under 30 mm/min, the maximum hydrogen absorption capacity of the sample under casting speed of 38 mm/min increases by that under 20%, and the hydrogen desorption pressure is reduced by 4%; compared with that under 740 ℃, the maximum hydrogen absorption capacity of the sample increases by 15% under casting temperature of 700 ℃, and the pressure of the hydrogen desorption platform is reduced by 4%. Appropriate casting speed and casting temperature can remarkably improve the hydrogen storage properties of the sample. The optimized casting speed and casting temperature are 38 mm/min and 700 ℃, respectively.

关 键 词：铸造速度 铸造温度 镁基材料 储氢性能 

分 类 号：TG249.3[金属学及工艺—铸造] TG292