EP1142661A3 - Process for preparing composite silver-tin oxide powders and their use for the preparation of contact material - Google Patents

Process for preparing composite silver-tin oxide powders and their use for the preparation of contact material Download PDF

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Publication number
EP1142661A3
EP1142661A3 EP01107637A EP01107637A EP1142661A3 EP 1142661 A3 EP1142661 A3 EP 1142661A3 EP 01107637 A EP01107637 A EP 01107637A EP 01107637 A EP01107637 A EP 01107637A EP 1142661 A3 EP1142661 A3 EP 1142661A3
Authority
EP
European Patent Office
Prior art keywords
tin oxide
silver
preparation
solution
contact material
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.)
Granted
Application number
EP01107637A
Other languages
German (de)
French (fr)
Other versions
EP1142661A2 (en
EP1142661B1 (en
Inventor
Mechthild Müller
Dietrich Dr. Rühlicke
Frank Dr. Heringhaus
Roger Wolmer
Dan V. Goia
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.)
Umicore AG and Co KG
Original Assignee
Umicore AG and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7637888&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1142661(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Umicore AG and Co KG filed Critical Umicore AG and Co KG
Publication of EP1142661A2 publication Critical patent/EP1142661A2/en
Publication of EP1142661A3 publication Critical patent/EP1142661A3/en
Application granted granted Critical
Publication of EP1142661B1 publication Critical patent/EP1142661B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B22F1/18—Non-metallic particles coated with metal
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • C22C32/001—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides
    • C22C32/0015—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with only oxides with only single oxides as main non-metallic constituents
    • C22C32/0021—Matrix based on noble metals, Cu or alloys thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material
    • H01H1/0237—Composite material having a noble metal as the basic material and containing oxides
    • H01H1/02372—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te
    • H01H1/02376—Composite material having a noble metal as the basic material and containing oxides containing as major components one or more oxides of the following elements only: Cd, Sn, Zn, In, Bi, Sb or Te containing as major component SnO2

Abstract

Production of composite powders based on silver-tin oxide comprises continuously adding a solution of a silver compound and a solution of a reductant in a reaction cycle to a solution of zinc oxide with intensive mixing to precipitate the silver. Preferred Features: The silver compound is silver nitrate, acetate, carbonate, citrate or oxalate. The reductant is ascorbic acid, citric acid, oxalic acid, formic acid or hydroxylamine. In 2O 3, Bi 2O 3, CuO, WO 3 or MoO 3 is contained in the aqueous dispersion of tin oxide.
EP01107637A 2000-04-06 2001-03-28 Process for preparing composite powders based on silver-tin oxide Expired - Lifetime EP1142661B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10017282 2000-04-06
DE10017282A DE10017282C2 (en) 2000-04-06 2000-04-06 Process for the production of composite powder based on siler tin oxide and its use for the production of contact materials

Publications (3)

Publication Number Publication Date
EP1142661A2 EP1142661A2 (en) 2001-10-10
EP1142661A3 true EP1142661A3 (en) 2003-05-28
EP1142661B1 EP1142661B1 (en) 2005-08-24

Family

ID=7637888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01107637A Expired - Lifetime EP1142661B1 (en) 2000-04-06 2001-03-28 Process for preparing composite powders based on silver-tin oxide

Country Status (4)

Country Link
US (1) US6409794B2 (en)
EP (1) EP1142661B1 (en)
AT (1) ATE302662T1 (en)
DE (2) DE10017282C2 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7329381B2 (en) * 2002-06-14 2008-02-12 General Electric Company Method for fabricating a metallic article without any melting
US7410610B2 (en) * 2002-06-14 2008-08-12 General Electric Company Method for producing a titanium metallic composition having titanium boride particles dispersed therein
US6921510B2 (en) * 2003-01-22 2005-07-26 General Electric Company Method for preparing an article having a dispersoid distributed in a metallic matrix
US7416697B2 (en) 2002-06-14 2008-08-26 General Electric Company Method for preparing a metallic article having an other additive constituent, without any melting
US7531021B2 (en) 2004-11-12 2009-05-12 General Electric Company Article having a dispersion of ultrafine titanium boride particles in a titanium-base matrix
US7336466B2 (en) * 2005-02-25 2008-02-26 Lincoln Global Inc. Contactor material for welding wire feeder
DE502006007601D1 (en) 2005-08-12 2010-09-16 Umicore Ag & Co Kg MATERIAL BASED ON SILVER CARBON AND METHOD FOR THE PRODUCTION THEREOF
DE102005038235A1 (en) * 2005-08-12 2007-02-15 Umicore Ag & Co. Kg Use of indium-tin mixed oxide for silver-based materials
CN100452259C (en) * 2006-03-17 2009-01-14 乐百令 Silver-nickel electric contact producing technology
US7566437B2 (en) 2006-03-31 2009-07-28 Umicore Ag & Co. Kg Process for manufacture of silver-based composite powders for electrical contact materials and composite powders so produced
US9580810B2 (en) 2007-02-27 2017-02-28 Mitsubishi Materials Corporation Dispersion of metal nanoparticles, method for producing the same, and method for synthesizing metal nanoparticles
JP5320769B2 (en) * 2007-02-27 2013-10-23 三菱マテリアル株式会社 Method for synthesizing metal nanoparticles
DE102010014745B4 (en) 2010-01-15 2011-09-22 Tyco Electronics Amp Gmbh Electric contact element and method for producing an electrical contact element
CN102074278B (en) * 2010-12-09 2011-12-28 温州宏丰电工合金股份有限公司 Preparation method of particle-aligned reinforced silver based contact material
CN102142325B (en) * 2010-12-30 2013-04-03 温州宏丰电工合金股份有限公司 Preparation method of particle direction-arrangement enhanced silver-based oxide electrical contact material
CN102389981A (en) * 2011-06-21 2012-03-28 佛山通宝精密合金股份有限公司 Method for continuously and homogeneously preparing silver tin oxide material
KR101351259B1 (en) 2012-01-20 2014-01-14 동아대학교 산학협력단 Ag-coated SnO Powder and Synthesis Method thereof
CN102528055B (en) * 2012-02-13 2013-12-04 中国科学院宁波材料技术与工程研究所 Preparation method for silver and stannic oxide composite powder and application thereof
JP6358902B2 (en) * 2014-09-02 2018-07-18 株式会社アルバック Method for producing exhaust gas purification catalyst
CN105728714B (en) 2014-12-12 2018-12-04 施耐德电气工业公司 Preparation method, device and the application of silver-metallic oxide electrical contact material
CN104493171A (en) * 2014-12-30 2015-04-08 桂林电器科学研究院有限公司 Preparation method of flakey silver and zinc oxide electrical contact material
CN105695791B (en) * 2016-02-25 2017-12-15 昆明贵金属研究所 A kind of new silver rare earth oxide alloy and preparation method thereof
CN106086495B (en) * 2016-06-17 2017-07-11 石家庄铁道大学 Cupric oxide doped siller tin oxide composite and preparation method thereof
CN111468719B (en) * 2020-03-07 2022-03-25 浙江福达合金材料科技有限公司 Silver tin oxide sheet-shaped electrical contact and preparation method thereof
CN115740465B (en) * 2022-12-13 2023-08-18 温州中希电工合金有限公司 Silver tin oxide contact material and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0369282A2 (en) * 1988-11-17 1990-05-23 Siemens Aktiengesellschaft Sintered contact material in low-tension switchgear, particularly for contactors

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639768B1 (en) 1988-11-25 1991-11-08 Inst Textile De France MICROWAVE PROPAGATION DEVICE FOR FLOWING PLANAR MATERIAL, ESPECIALLY TEXTILE
DE19503182C1 (en) * 1995-02-01 1996-05-15 Degussa Sintered material used as electrical contacts for switching amperage rating
US5846288A (en) * 1995-11-27 1998-12-08 Chemet Corporation Electrically conductive material and method for making

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0369282A2 (en) * 1988-11-17 1990-05-23 Siemens Aktiengesellschaft Sintered contact material in low-tension switchgear, particularly for contactors

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BEHRENS V ET AL: "AN ADVANCED SILVER/TIN OXIDE CONTACT MATERIAL", PROCEEDINGS OF THE HOLM CONFERENCE ON ELECTRICAL CONTACTS. PITTSBURGH, SEPT. 27 - 29, 1993, NEW YORK, IEEE, US, vol. CONF. 39, 27 September 1993 (1993-09-27), pages 19 - 25, XP000419850 *
CHANG H ET AL: "NOVEL METHOD FOR PREPARATION OF SILVER-TIN OXIDE ELECTRICAL CONTACTS", JOURNAL OF HEAT TREATING, SPRINGER VERLAG, NEW YORK, US, vol. 1, no. 2, 1 April 1992 (1992-04-01), pages 255 - 260, XP000277287, ISSN: 0190-9177 *

Also Published As

Publication number Publication date
US20010051102A1 (en) 2001-12-13
ATE302662T1 (en) 2005-09-15
DE10017282A1 (en) 2001-10-18
DE50107166D1 (en) 2005-09-29
DE10017282C2 (en) 2002-02-14
US6409794B2 (en) 2002-06-25
EP1142661A2 (en) 2001-10-10
EP1142661B1 (en) 2005-08-24

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