Transactions of Materials and Heat Treatment

Title：Study of drawing key techniques and design of transfer die for shell of wet all-tantalum capacitor

Authors： KE Xu-gui ZHANG Rong-qing(Department of Material Engineering Nanjing Institute of Technology Engineering Nanjing 211167 China)

Unit：

KeyWords： shell of tantalum capacitor deep drawing seizing tumour transfer die

ClassificationCode：TG386

year,vol(issue):pagenumber：2008,33(6):82-86

Abstract：

Shells of wet tantalum capacitor by deep drawing have been unable to meet quality requirements because the seizing tumour appears easily during deep drawing.This paper analyzed the causes of forming seizing tumour,set forth the influence of mould material,mold surface quality,sheet metal surface quality and lubrication,etc.,pointed out that using high-speed steel as the mould material,dealing the surface of the die with oxygen and nitrogen and lubricating with lubricants based on CFC oil,the seizing tumour could be effectively solved.All solutions were verified by experiments and a transfer die was designed to produce shells successfully on the above-mentioned experiment results finally.

Funds：

江苏省高校自然基金资助项目(07KJD460079);; 江苏省科技攻关资助项目(BE2007078)

Reference：

[1]王秀宇,刘仲娥,张之圣,等.全钽全密封液体钽电解电容器[J].电子元件与材料,2008,27(1):13-15.
[2]付贤民.新型全密封液体钽电容器[J].电子元件与材料,1997,16(5):31-35.
[3]张行健.提高全钽电容器外壳质量的研究[D].长沙:中南大学,2005.
[4]王守林.钽箔深拉深粘着初探[J].电子工艺技术,1987,(12):12-15.
[5]王汝霖.润滑剂摩擦化学[M].北京:中国石化出版社,1994.
[6]赵维鹏.钽金属拉拔润滑油的研制[J].合成润滑材料,1999,(2):11-13.

Service：

【This site has not yet opened Download Service】【Add Favorite】