FTW200K钽粉中添加化学粘结剂研制钽阳极块的研究  

The Preparation of Tantalum Anode Blocks by Adding Chemistry a Binder in FTW200K Tantalum Powders

作　　者：李福成 LI Fucheng(The State Key Laboratory of Rare Metal Special Materials in the Northwest Rare Metal Materials Research Institute,Shizuishan Ningxia 753000,China;CNMC Ningxia Orient Group Co.Ltd.,National Engineering Research Center Of Tantalum and Niobium Materials,Shizuishan Ningxia 753000,China;Ningxia Orient Tantalum Industry Co.Ltd.of CNMC Ningxia Orient Group Co.Ltd.,Shizuishan Ningxia 753000,China)

机构地区：[1]西北稀有金属材料研究院稀有金属特种材料国家重点实验室,宁夏石嘴山753000 [2]中色(宁夏)东方集团有限公司国家钽铌特种金属材料工程技术研究中心,宁夏石嘴山753000 [3]中色(宁夏)东方集团有限公司宁夏东方钽业股份有限公司,宁夏石嘴山753000

出　　处：《安徽理工大学学报（自然科学版）》2023年第1期72-77,共6页Journal of Anhui University of Science and Technology:Natural Science

基　　金：宁夏回族自治区自然科学基金项目资助(2021AAC01002);稀有金属特种材料国家重点实验室研发平台建设资助项目(2019BDC05001)。

摘　　要：为了制备优质的钽阳极块,以钠还原法生产的电容器级超高比容金属钽粉(FTW200K)为主要原材料,并添加化学粘结剂为辅助原材料制备钽阳极块。利用扫描电镜、粒度分析仪对不同粘结剂、不同脱蜡工艺参数条件下制备的阳极块进行内部钽粉颗粒存在的物理形态及结合方式、压制成型和脱蜡后钽阳极块内部的钽粉颗粒度和孔隙度进行观察和分析。结果显示:化学粘结剂的加入有助于超细金属钽粉颗粒间的粘结,实现金属钽粉压成胚块,但也是形成钽阳极芯子毛胚块外部和内部质量缺陷的主要原因之一。通过现场对比试验,最后通过对真空脱蜡等工艺参数的计算设计和有效控制,完全能够制备出钽粉颗粒分布均匀,孔隙度良好的钽阳极块。In order to produce high quality tantalum anode blocks,the capacitor grade tantalum powder(FTW200K)produced by sodium reduction method was used as the main raw material to prepare tantalum anode blocks by adding chemical binder as auxiliary raw material in the research.After the observation and analysis on the research results,the conclusion was gained that it is completely capable to produce the tantalum anode block with tantalum powders of uniform particle distribution and good porosity.

关 键 词：FTW200K金属钽粉 化学粘结剂 钽阳极块 钽电解电容器 物性分析 

分 类 号：TN602[电子电信—电路与系统]