Title:
TANTALUM FILAMENT USED FOR ANODE OF TANTALUM CAPACITOR AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2010/083632
Kind Code:
A1
Abstract:
A tantalum filament used for an anode of a tantalum capacitor, the cross section of the tantalum filament is approximate rectangular or regular rectangular. A manufacturing method of the tantalum filament, comprises the steps: performing heat treatment to the raw tantalum filament; performing surface treatment to the tantalum filament after being treated so that an oxide film is formed on the surface of tantalum filament; lubricating by means of lubricative oil and rolling the tantalum filament after being pretreated so that the cross section of the tantalum filament is approximate rectangular or regular rectangular; annealing the tantalum filament finally.
Inventors:
ZHAO BING (CN)
DU LINGHUI (CN)
XIE YONGXU (CN)
WAN QINGFENG (CN)
WANG HUIFENG (CN)
QIU GUOHUA (CN)
DU LINGHUI (CN)
XIE YONGXU (CN)
WAN QINGFENG (CN)
WANG HUIFENG (CN)
QIU GUOHUA (CN)
Application Number:
PCT/CN2009/000556
Publication Date:
July 29, 2010
Filing Date:
May 21, 2009
Export Citation:
Assignee:
NINGXIA ORIENT TANTALUM INDUST (CN)
ZHAO BING (CN)
DU LINGHUI (CN)
XIE YONGXU (CN)
WAN QINGFENG (CN)
WANG HUIFENG (CN)
QIU GUOHUA (CN)
ZHAO BING (CN)
DU LINGHUI (CN)
XIE YONGXU (CN)
WAN QINGFENG (CN)
WANG HUIFENG (CN)
QIU GUOHUA (CN)
International Classes:
H01G9/012
Foreign References:
| JPS6453533A | 1989-03-01 | |||
| CN101409150A | 2009-04-15 | |||
| US4574333A | 1986-03-04 |
Other References:
WAN QINGFENG ET AL.: "Review on Development of Tantalum Wire in Capacitor in China", RARE METALS LETTERS, vol. 27, no. 2, February 2008 (2008-02-01), pages 10, XP008168411
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (Vantone New World Plaza2 Fuchengmenwai Street, Beijing 7, CN)
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