AU2001277732A1 - Method for manufacturing tantalum sintered object for electrolytic capacitor - Google Patents

Method for manufacturing tantalum sintered object for electrolytic capacitor

Info

Publication number
AU2001277732A1
AU2001277732A1 AU2001277732A AU7773201A AU2001277732A1 AU 2001277732 A1 AU2001277732 A1 AU 2001277732A1 AU 2001277732 A AU2001277732 A AU 2001277732A AU 7773201 A AU7773201 A AU 7773201A AU 2001277732 A1 AU2001277732 A1 AU 2001277732A1
Authority
AU
Australia
Prior art keywords
electrolytic capacitor
tantalum sintered
sintered object
manufacturing tantalum
manufacturing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2001277732A
Inventor
Tomoo Izumi
Yoshikazu Noguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cabot Supermetals KK
Original Assignee
Showa Cabot Supermetals KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Cabot Supermetals KK filed Critical Showa Cabot Supermetals KK
Publication of AU2001277732A1 publication Critical patent/AU2001277732A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/04—Electrodes or formation of dielectric layers thereon
    • H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
    • H01G9/052—Sintered electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • B22F1/145—Chemical treatment, e.g. passivation or decarburisation
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/04—Making non-ferrous alloys by powder metallurgy
    • C22C1/045—Alloys based on refractory metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Powder Metallurgy (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
AU2001277732A 2000-08-10 2001-08-09 Method for manufacturing tantalum sintered object for electrolytic capacitor Abandoned AU2001277732A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000243366A JP2002060803A (en) 2000-08-10 2000-08-10 Method for producing tantalum sintered body for electrolytic capacitor
JP2000-243366 2000-08-10
PCT/JP2001/006853 WO2002013998A1 (en) 2000-08-10 2001-08-09 Method for manufacturing tantalum sintered object for electrolytic capacitor

Publications (1)

Publication Number Publication Date
AU2001277732A1 true AU2001277732A1 (en) 2002-02-25

Family

ID=18734232

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001277732A Abandoned AU2001277732A1 (en) 2000-08-10 2001-08-09 Method for manufacturing tantalum sintered object for electrolytic capacitor

Country Status (5)

Country Link
US (1) US20030174459A1 (en)
JP (1) JP2002060803A (en)
CN (1) CN1196552C (en)
AU (1) AU2001277732A1 (en)
WO (1) WO2002013998A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1809904A (en) * 2003-04-25 2006-07-26 卡伯特公司 Method of forming sintered valve metal material
KR100829277B1 (en) * 2004-04-15 2008-05-13 제이에프이미네라르 가부시키가이샤 Tantalum powder and solid electrolyte capacitor including the same
DE102004049040B4 (en) * 2004-10-08 2008-11-27 H.C. Starck Gmbh Process for the preparation of solid electrolytic capacitors
DE102004049039B4 (en) * 2004-10-08 2009-05-07 H.C. Starck Gmbh Process for the preparation of finely divided valve metal powder
CN100339172C (en) * 2005-09-29 2007-09-26 宁夏东方钽业股份有限公司 Method for spheroidizing and pelletizing to coagulate metal powder, metal powder and electrolytic capacitor anode
WO2009052007A1 (en) * 2007-10-15 2009-04-23 Hi-Temp Specialty Metals, Inc. Method for the production of tantalum powder using reclaimed scrap as source material
JPWO2011013375A1 (en) * 2009-07-29 2013-01-07 昭和電工株式会社 Manufacturing method of solid electrolytic capacitor
JP5774766B2 (en) * 2011-03-23 2015-09-09 ニンシア オリエント タンタル インダストリー カンパニー、 リミテッド Method and apparatus for passivating the surface of tantalum metal
CN102773478A (en) * 2012-07-10 2012-11-14 中国振华（集团）新云电子元器件有限责任公司 Sintering method for improving mechanical strength of tantalum block
CN102768906B (en) * 2012-08-09 2015-10-21 中国振华（集团）新云电子元器件有限责任公司 In a kind of thermal domain environment, the mixed powder of mixing makes the method for anode block of tantalum capacitor
US10074487B2 (en) 2015-05-18 2018-09-11 Avx Corporation Solid electrolytic capacitor having a high capacitance
KR101911871B1 (en) * 2016-12-23 2018-10-29 한국기초과학지원연구원 Method for Manufacturing Tantalum powder
CN107745126B (en) * 2017-09-30 2020-01-31 中国振华（集团）新云电子元器件有限责任公司 method for improving internal porosity of sintered tantalum block
US11534830B2 (en) 2017-12-28 2022-12-27 Ningxia Orient Tantalum Industry Co., Ltd Tantalum powder and preparation method therefor
JP7317852B2 (en) * 2018-10-12 2023-07-31 東洋アルミニウム株式会社 METHOD FOR MANUFACTURING ELECTRODE MATERIAL FOR ALUMINUM ELECTROLYTIC CAPACITOR
CN114093676B (en) * 2021-11-12 2023-03-24 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) Sintering method of anode block of tantalum capacitor

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939342B1 (en) * 1970-05-28 1974-10-24
US3835210A (en) * 1971-07-30 1974-09-10 Trw Inc Method of forming powder compacts
US3934179A (en) * 1972-09-20 1976-01-20 Fansteel Inc. Tantalum anode for electrolytic devices
US4009007A (en) * 1975-07-14 1977-02-22 Fansteel Inc. Tantalum powder and method of making the same
US4017302A (en) * 1976-02-04 1977-04-12 Fansteel Inc. Tantalum metal powder
US4141719A (en) * 1977-05-31 1979-02-27 Fansteel Inc. Tantalum metal powder
US4141720A (en) * 1978-05-16 1979-02-27 Nrc, Inc. Tantalum powder reclaiming
US4441927A (en) * 1982-11-16 1984-04-10 Cabot Corporation Tantalum powder composition
US4722756A (en) * 1987-02-27 1988-02-02 Cabot Corp Method for deoxidizing tantalum material
US5242481A (en) * 1989-06-26 1993-09-07 Cabot Corporation Method of making powders and products of tantalum and niobium
US5693104A (en) * 1994-08-25 1997-12-02 Rohm Co. Ltd. Process for making capacitor element for solid electrolytic capacitor
US5993513A (en) * 1996-04-05 1999-11-30 Cabot Corporation Method for controlling the oxygen content in valve metal materials
US5954856A (en) * 1996-04-25 1999-09-21 Cabot Corporation Method of making tantalum metal powder with controlled size distribution and products made therefrom
CZ301097B6 (en) * 1997-02-19 2009-11-04 H.C. Starck Gmbh Powder tantalum consisting of agglomerates, method for preparing thereof and sintered anodes obtained therefrom
US6088218A (en) * 1997-10-31 2000-07-11 Matsushita Electric Industrial Co., Ltd. Electrolytic capacitor and method for producing the same
US6214060B1 (en) * 1997-12-09 2001-04-10 Rohm Co., Ltd. Process of making a capacitor element for a solid electrolytic capacitor
US6576038B1 (en) * 1998-05-22 2003-06-10 Cabot Corporation Method to agglomerate metal particles and metal particles having improved properties
US6348113B1 (en) * 1998-11-25 2002-02-19 Cabot Corporation High purity tantalum, products containing the same, and methods of making the same
US6611421B2 (en) * 2000-09-08 2003-08-26 Avx Corporation Non-polarized tantalum capacitor and capacitor array

Also Published As

Publication number Publication date
JP2002060803A (en) 2002-02-28
US20030174459A1 (en) 2003-09-18
CN1196552C (en) 2005-04-13
WO2002013998A1 (en) 2002-02-21
CN1449316A (en) 2003-10-15

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