摘要
粒度分布是影响储氢合金粉使用性能的重要因素,粒度分布的异常波动会导致镍氢电池负极片成品率下降。对储氢合金制粉过程中可能影响粒度分布的因素进行了验证分析,尤其是针对干法合金粉容易出现的筛分粒度异常问题,从制粉设备关键参数、分析检测设备和筛网型号等方面进行了验证。分析发现:制粉过程出现粒度分布异常的产品,与制粉设备和检测设备没有明显关联,制粉所用筛网的丝径偏差是导致出现粒度问题的主要原因,并针对性的制定了有效控制措施。
Particle size is an important factor affecting the performance of hydrogen storage alloy powders,and the abnormal fluctuation of particle size will lead to the decrease of the yield of Ni-MH battery negative electrode.The factors that may affect the particle size in the process of hydrogen storage alloy powder production were verified and analyzed,especially for the dry process of alloy powders,the key parameters of powder production equipment,analysis and testing equipment and sieve mesh were verified.The results show that the abnormal particle size distribution of the products in the pulverizing process has no obvious correlation with the pulverizing equipment and testing equipment,and the main cause of particle size problem is the deviation of wire diameter of screen used in pulverizing,and effective control measures are formulated accordingly.
作者
吉力强
刘黎黎
段亚楠
景永强
王西涛
韩伟
JI Liqiang;LIU Lili;DUAN Yanan;JING Yongqiang;WANG Xitao;HAN Wei(Central Iron and Steel Research Institute Co.,Ltd.,Beijing 100081,China;University of Science and Technology The Collaborative Innovation Center of Steel Technology Beijing 100083,China;AT&M Environmental engineering technology Co.,Ltd.,Beijing 100081,China;Inner Mongolia First Machinery Group Co.,Ltd,Baotou 014032,China;Inner Mongolia Rare Earth Ovonic Metal Hydride Co.,Ltd.,Baotou 014030,China)
出处
《粉末冶金工业》
北大核心
2025年第2期64-69,共6页
Powder Metallurgy Industry
基金
鄂尔多斯市科技合作重大专项资助项目(2021EEDSCXQDFZ015)
关键词
新材料
储氢合金
粒度分布
筛分
制粉
new material
hydrogen storage alloy
particle size distribution
sieving
powder process
作者简介
吉力强(1981-),男,硕士,高级工程师,主要研究方向为金属储氢材料。
