EP1023959A3 - Composite article prepared by powder metallurgy and process for its manufacture - Google Patents

Composite article prepared by powder metallurgy and process for its manufacture Download PDF

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Publication number
EP1023959A3
EP1023959A3 EP00101609A EP00101609A EP1023959A3 EP 1023959 A3 EP1023959 A3 EP 1023959A3 EP 00101609 A EP00101609 A EP 00101609A EP 00101609 A EP00101609 A EP 00101609A EP 1023959 A3 EP1023959 A3 EP 1023959A3
Authority
EP
European Patent Office
Prior art keywords
melting point
refractory components
matrix
powder metallurgy
manufacture
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
EP00101609A
Other languages
German (de)
French (fr)
Other versions
EP1023959A2 (en
EP1023959B1 (en
Inventor
Gerd Dipl.-Ing. Renner
Udo Dr. Dipl.-Chem. Siefken
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.)
Renner Louis GmbH
Original Assignee
Renner Louis GmbH
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 Renner Louis GmbH filed Critical Renner Louis GmbH
Publication of EP1023959A2 publication Critical patent/EP1023959A2/en
Publication of EP1023959A3 publication Critical patent/EP1023959A3/en
Application granted granted Critical
Publication of EP1023959B1 publication Critical patent/EP1023959B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C22C32/0047—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 carbides, nitrides, borides or silicides as the main non-metallic constituents
    • 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
    • C22C1/047—Making non-ferrous alloys by powder metallurgy comprising intermetallic compounds
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/048—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by powder-metallurgical processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Contacts (AREA)
  • Conductive Materials (AREA)

Abstract

Gegenstand der Erfindung ist ein pulvermetallurgisch hergestellter Verbundwerkstoff, umfassend eine Matrix aus einem Metall mit einem Schmelzpunkt von höchstens 1.200° C und einem in dieser Matrix eingebetteten körnigen Zusatz aus mindestens zwei Refraktärkomponenten, dadurch gekennzeichnet, daß die Refraktärkomponenten in Form von Mischkristallen oder intermetallischen Phasen vorliegen. In einer Ausführungsform hat ein bzw. eine erste Gruppe an Refraktärkomponenten einen Schmelzpunkt von 1.500 bis 2.400°C und eine zweite bzw. eine zweite Gruppe an Refraktärkomponenten einen Schmelzpunkt von über 2.400° C. Die Herstellung des Verbundwerkstoffes erfolgt dadurch, daß man ein pulverförmiges Gemisch der Refraktärkomponenten durch Erhitzen in einen Mischkristall oder eine intermetallische Phase umwandelt und das daraus durch Abkühlen und Zerkleinern gewonnene Pulver auf pulvermetallurgischem Weg mit einer Metallmatrix mit einem Schmelzpunkt von höchstens 1.200° C verbindet. Der Verbundwerkstoff der Erfindung eignet sich als Schaltkontakt für Vakuumschaltkammern.The invention relates to a powder metallurgy Composite material comprising a matrix of a metal with a Melting point of at most 1,200 ° C and one embedded in this matrix granular addition of at least two refractory components, thereby characterized in that the refractory components in the form of mixed crystals or intermetallic phases are present. In one embodiment, one first group of refractory components with a melting point of 1,500 to 2,400 ° C and a second or a second group of refractory components Melting point of over 2,400 ° C. The composite material is produced by passing a powdered mixture of the refractory components Heating converts to a mixed crystal or an intermetallic phase and that powder obtained therefrom by cooling and crushing on powder metallurgical Away with a metal matrix with a melting point of connects at most 1,200 ° C. The composite of the invention is useful as Switch contact for vacuum interrupters.

EP00101609A 1999-01-29 2000-01-28 Composite article prepared by powder metallurgy and process for its manufacture Expired - Lifetime EP1023959B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19903619 1999-01-29
DE19903619A DE19903619C1 (en) 1999-01-29 1999-01-29 Powder metallurgical composite material, especially for high voltage vacuum switch contacts, comprises refractory solid solution or intermetallic phase grains embedded in a metal matrix

Publications (3)

Publication Number Publication Date
EP1023959A2 EP1023959A2 (en) 2000-08-02
EP1023959A3 true EP1023959A3 (en) 2004-03-24
EP1023959B1 EP1023959B1 (en) 2007-03-14

Family

ID=7895834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00101609A Expired - Lifetime EP1023959B1 (en) 1999-01-29 2000-01-28 Composite article prepared by powder metallurgy and process for its manufacture

Country Status (5)

Country Link
US (1) US6350294B1 (en)
EP (1) EP1023959B1 (en)
JP (1) JP2000219923A (en)
DE (2) DE19903619C1 (en)
ES (1) ES2283251T3 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10261303B3 (en) * 2002-12-27 2004-06-24 Wieland-Werke Ag Electrically conducting composite material used in automotive applications as electrical contact components, such as connectors or connections, comprises a metal strip and a contact layer containing carbon powder and a further additive
DE10318890B4 (en) * 2003-04-17 2014-05-08 Ami Doduco Gmbh Electrical plug contacts and a semi-finished product for their production
DE102005003812A1 (en) * 2005-01-27 2006-10-05 Abb Technology Ag Method for producing a contact piece, and contact piece for a vacuum interrupter itself
SE528908C2 (en) * 2005-07-15 2007-03-13 Abb Research Ltd Electric contact element for semiconductor device, has body with contact surface coated with contact layer having nanocomposite film with matrix of amorphous carbon, where metal carbide is embedded into contact layer
KR101047829B1 (en) 2005-07-15 2011-07-08 임팩트 코팅스 에이비 Contact elements and contact devices
DE102006027821A1 (en) * 2006-06-16 2007-12-27 Siemens Ag Electrical switching contact
DE102008015464A1 (en) * 2008-03-18 2009-09-24 Siemens Aktiengesellschaft Component i.e. current distribution rail, for use in e.g. ship, has electrical contact element formed with dispersed distribution phase by matrix, where phase comprises electrically conductive substance which is harder than matrix material
CN102618773B (en) * 2012-04-05 2013-06-19 浙江大学 Method for preparing Ag/La1-xSrxCoO3 electric contact composite material
WO2014208419A1 (en) * 2013-06-24 2014-12-31 三菱電機株式会社 Electrical contact material and method for manufacturing same
WO2015133264A1 (en) * 2014-03-04 2015-09-11 株式会社明電舎 Alloy
EP3109883B1 (en) * 2014-03-04 2019-07-31 Meidensha Corporation Electrode material
US9959986B2 (en) * 2014-03-04 2018-05-01 Meidensha Corporation Method for producing electrode material
EP3290535B1 (en) * 2015-05-01 2020-05-06 Meidensha Corporation Method for producing electrode material, and electrode material
WO2017039200A1 (en) * 2015-08-28 2017-03-09 부경대학교 산학협력단 Functionally graded composite for energy conversion, manufacturing method therefor, and sensor using same
KR101782107B1 (en) * 2015-08-28 2017-09-26 부경대학교 산학협력단 Functionally Graded Composites for Energy Conversion and Process for Preparing the Same
JP6075423B1 (en) * 2015-09-03 2017-02-08 株式会社明電舎 Vacuum circuit breaker
KR101860852B1 (en) 2016-06-30 2018-05-25 부경대학교 산학협력단 Metal-Phosphor Functionally Graded Composites having High Heat Radiation and Energy Circulation Laser Lighting System with High Efficiency using the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066451A (en) * 1976-02-17 1978-01-03 Erwin Rudy Carbide compositions for wear-resistant facings and method of fabrication
US4915902A (en) * 1984-10-19 1990-04-10 Martin Marietta Corporation Complex ceramic whisker formation in metal-ceramic composites
EP0668599A2 (en) * 1994-02-21 1995-08-23 Kabushiki Kaisha Toshiba Contact material for vacuum valve and method of manufacturing the same

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115728A (en) * 1981-12-28 1983-07-09 三菱電機株式会社 Contact for vacuum breaker
US4517033A (en) * 1982-11-01 1985-05-14 Mitsubishi Denki Kabushiki Kaisha Contact material for vacuum circuit breaker
DE3428276A1 (en) * 1984-08-01 1986-02-06 Doduco KG Dr. Eugen Dürrwächter, 7530 Pforzheim Material for electric contacts on the basis of silver with tungsten carbide, and process for the production thereof
EP0181149B1 (en) * 1984-10-30 1990-01-03 Mitsubishi Denki Kabushiki Kaisha Contact material for vacuum circuit breaker
US4677264A (en) * 1984-12-24 1987-06-30 Mitsubishi Denki Kabushiki Kaisha Contact material for vacuum circuit breaker
US4784829A (en) 1985-04-30 1988-11-15 Mitsubishi Denki Kabushiki Kaisha Contact material for vacuum circuit breaker
US5246480A (en) * 1988-04-20 1993-09-21 Siemens Aktiengesellschaft Sintered contact material based on silver for use in power engineering switch-gear, in particular for contact pieces in low-voltage switches
DE3829250A1 (en) * 1988-08-29 1990-03-01 Siemens Ag Method for producing a contact material for vacuum switches
DE4205763A1 (en) * 1992-02-25 1993-08-26 Siemens Ag SILVER-BASED SINTER CONTACT MATERIAL FOR USE IN SWITCHGEAR OF ENERGY TECHNOLOGY

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4066451A (en) * 1976-02-17 1978-01-03 Erwin Rudy Carbide compositions for wear-resistant facings and method of fabrication
US4915902A (en) * 1984-10-19 1990-04-10 Martin Marietta Corporation Complex ceramic whisker formation in metal-ceramic composites
EP0668599A2 (en) * 1994-02-21 1995-08-23 Kabushiki Kaisha Toshiba Contact material for vacuum valve and method of manufacturing the same

Also Published As

Publication number Publication date
US6350294B1 (en) 2002-02-26
ES2283251T3 (en) 2007-11-01
DE50014151D1 (en) 2007-04-26
EP1023959A2 (en) 2000-08-02
JP2000219923A (en) 2000-08-08
DE19903619C1 (en) 2000-06-08
EP1023959B1 (en) 2007-03-14

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