EP0182386A3 - Contact material for low-tension switchgear and method of producing contact parts of this material - Google Patents

Contact material for low-tension switchgear and method of producing contact parts of this material Download PDF

Info

Publication number
EP0182386A3
EP0182386A3 EP85114864A EP85114864A EP0182386A3 EP 0182386 A3 EP0182386 A3 EP 0182386A3 EP 85114864 A EP85114864 A EP 85114864A EP 85114864 A EP85114864 A EP 85114864A EP 0182386 A3 EP0182386 A3 EP 0182386A3
Authority
EP
European Patent Office
Prior art keywords
cdo
contact
low
contact material
bi2o3
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
EP85114864A
Other languages
German (de)
Other versions
EP0182386B1 (en
EP0182386A2 (en
Inventor
Horst Prof. Dr. Schreiner
Bernhard Rothkegel
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.)
Siemens AG
Original Assignee
Siemens AG
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=6190546&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0182386(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT85114864T priority Critical patent/ATE57789T1/en
Publication of EP0182386A2 publication Critical patent/EP0182386A2/en
Publication of EP0182386A3 publication Critical patent/EP0182386A3/en
Application granted granted Critical
Publication of EP0182386B1 publication Critical patent/EP0182386B1/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
    • C22C32/001—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
    • 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
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
    • B22F2009/0828—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid with water
    • 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

Abstract

Electrical contact materials based on AgCdO with CdO as the main active component have proven to be particularly advantageous for low voltage switchgear in the power industry. However, when switching AgCdO contact materials, CdO, which is classified as toxic, can escape into the environment through burn-off. It is important, therefore, to keep the CdO content as low as possible in the contact material, or to exclude it completely. The contact material according to the invention is a sintered contact material consisting of AgSnO2 with at least two other metal oxide additives; namely, Bi2O3, CuO and optionally CdO. Relative to SnO2, these additives Bi2O3, CuO optionally CdO, amount quantitatively to a total maximum of 25 percent by volume of the total amount of oxide.
EP85114864A 1983-02-10 1984-01-30 Method of producing contact parts Expired - Lifetime EP0182386B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114864T ATE57789T1 (en) 1983-02-10 1984-01-30 PROCESS FOR THE MANUFACTURE OF CONTACT PIECES FROM THIS MATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833304637 DE3304637A1 (en) 1983-02-10 1983-02-10 SINTER CONTACT MATERIAL FOR LOW VOLTAGE SWITCHGEAR
DE3304637 1983-02-10

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP84100927.7 Division 1984-01-30

Publications (3)

Publication Number Publication Date
EP0182386A2 EP0182386A2 (en) 1986-05-28
EP0182386A3 true EP0182386A3 (en) 1987-01-14
EP0182386B1 EP0182386B1 (en) 1990-10-24

Family

ID=6190546

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84100927A Expired EP0118708B1 (en) 1983-02-10 1984-01-30 Sintered contact material for low-tension switchgear
EP85114864A Expired - Lifetime EP0182386B1 (en) 1983-02-10 1984-01-30 Method of producing contact parts

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP84100927A Expired EP0118708B1 (en) 1983-02-10 1984-01-30 Sintered contact material for low-tension switchgear

Country Status (5)

Country Link
US (1) US4681702A (en)
EP (2) EP0118708B1 (en)
JP (1) JPS59148215A (en)
AT (2) ATE24628T1 (en)
DE (3) DE3304637A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3421758A1 (en) * 1984-06-12 1985-12-12 Siemens AG, 1000 Berlin und 8000 München SINTER CONTACT MATERIAL FOR LOW VOLTAGE SWITCHGEAR IN ENERGY TECHNOLOGY AND METHOD FOR THE PRODUCTION THEREOF
JPH06104873B2 (en) * 1986-07-08 1994-12-21 富士電機株式会社 Silver-metal oxide contact material and manufacturing method thereof
JPH03504615A (en) * 1988-03-26 1991-10-09 ドドウコ・ゲーエムベーハー＋コンパニー・ドクトル・オイゲン・デュルベヒテル Semi-finished products for electrical contacts made of silver-tin oxide composite materials and their manufacturing method using powder metallurgy
DE58908359D1 (en) * 1988-11-17 1994-10-20 Siemens Ag Sintered contact material for low-voltage switchgear in energy technology, especially for motor contactors.
EP0369282B1 (en) * 1988-11-17 1995-06-14 Siemens Aktiengesellschaft Sintered contact material in low-tension switchgear, particularly for contactors
FR2639466B1 (en) * 1988-11-22 1991-02-15 Telemecanique PROCESS FOR PREPARING AN ELECTRICAL CONTACT MATERIAL AND METHOD FOR MANUFACTURING A CONTACT ELEMENT INCORPORATING SUCH A MATERIAL
US4952353A (en) * 1989-12-28 1990-08-28 Gte Laboratories Incorporated Hot isostatic pressing
JP2896428B2 (en) * 1992-06-10 1999-05-31 ドドウコ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・ドクトル・オイゲン・デュルベヒテル Material and manufacturing method for electrical contact having silver and tin oxide or silver and zinc oxide as main components
DE19503182C1 (en) * 1995-02-01 1996-05-15 Degussa Sintered material used as electrical contacts for switching amperage rating
JP4892327B2 (en) * 2006-11-29 2012-03-07 株式会社富士機械工作所 Tube cutting apparatus and tube cutting method
DE102008056264A1 (en) 2008-11-06 2010-05-27 Ami Doduco Gmbh Process for producing a semifinished product and semifinished product for electrical contacts and contact piece
DE102008056263A1 (en) 2008-11-06 2010-05-27 Ami Doduco Gmbh Process for producing a semifinished product and semifinished product for electrical contacts and contact piece
CN104498764A (en) * 2014-12-31 2015-04-08 靖江市海源有色金属材料有限公司 Electric contact material and preparation method thereof
EP3116009B1 (en) * 2015-07-07 2019-08-28 Siemens Aktiengesellschaft Process for making an electric switch contact

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2754335A1 (en) * 1976-12-03 1978-06-08 Matsushita Electric Ind Co Ltd ELECTRICAL CONTACT MATERIAL AND METHOD FOR MANUFACTURING IT
FR2433054A1 (en) * 1978-08-11 1980-03-07 Chugai Electric Ind Co Ltd AG-SN-BI ALLOYS WITH INTERNAL OXIDATION FOR IMPROVED ELECTRICAL CONTACTS
GB2055398A (en) * 1979-08-01 1981-03-04 Chugai Electric Ind Co Ltd Electrical contact materials of internally oxidized Ag-Sn-Bi alloy
EP0056857A1 (en) * 1981-01-23 1982-08-04 Degussa Aktiengesellschaft Material for electrical contacts
EP0080641A1 (en) * 1981-11-26 1983-06-08 Siemens Aktiengesellschaft Method of producing preforms of cadmium-free silver-metal oxide compound materials for electric contacts

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH588152A5 (en) * 1972-12-11 1977-05-31 Siemens Ag
JPS50123519A (en) * 1974-02-12 1975-09-29
GB1507854A (en) * 1974-04-01 1978-04-19 Mallory & Co Inc P R Electric contact materials
JPS51121795A (en) * 1975-04-17 1976-10-25 Nippon Tungsten Co Ltd Ag-tin oxide-system electric contact material
JPS596903B2 (en) * 1975-05-21 1984-02-15 タナカキキンゾクコウギヨウ カブシキガイシヤ Composite electrical contact material
DE2659012C3 (en) * 1976-12-27 1980-01-24 Siemens Ag, 1000 Berlin Und 8000 Muenchen Process for producing a sintered contact material from silver and embedded metal oxides
JPS608301B2 (en) * 1977-01-21 1985-03-01 田中貴金属工業株式会社 Method for manufacturing Ag-oxide composite contact material
JPS6018735B2 (en) * 1977-12-15 1985-05-11 松下電器産業株式会社 electrical contact materials
US4150982A (en) * 1978-03-13 1979-04-24 Chugai Denki Kogyo Kabushiki-Kaisha AG-Metal oxides electrical contact materials containing internally oxidized indium oxides and/or tin oxides
JPS5543775A (en) * 1978-09-21 1980-03-27 Sumitomo Electric Industries Electric contact material and method of fabricating same
US4294616A (en) * 1979-01-02 1981-10-13 Gte Products Corporation Electrical contacts
JPS5760042A (en) * 1980-09-26 1982-04-10 Matsushita Electric Ind Co Ltd Electrical contact material
JPS57134532A (en) * 1981-02-12 1982-08-19 Chugai Electric Ind Co Ltd Electrical contact material of silver-tin-bismuth alloy
DE3305270A1 (en) * 1983-02-16 1984-08-16 Siemens AG, 1000 Berlin und 8000 München SINTER COMPOSITE FOR ELECTRICAL CONTACTS AND METHOD FOR THE PRODUCTION THEREOF
DE3466122D1 (en) * 1984-01-30 1987-10-15 Siemens Ag Contact material and production of electric contacts

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2754335A1 (en) * 1976-12-03 1978-06-08 Matsushita Electric Ind Co Ltd ELECTRICAL CONTACT MATERIAL AND METHOD FOR MANUFACTURING IT
FR2433054A1 (en) * 1978-08-11 1980-03-07 Chugai Electric Ind Co Ltd AG-SN-BI ALLOYS WITH INTERNAL OXIDATION FOR IMPROVED ELECTRICAL CONTACTS
GB2055398A (en) * 1979-08-01 1981-03-04 Chugai Electric Ind Co Ltd Electrical contact materials of internally oxidized Ag-Sn-Bi alloy
EP0056857A1 (en) * 1981-01-23 1982-08-04 Degussa Aktiengesellschaft Material for electrical contacts
EP0080641A1 (en) * 1981-11-26 1983-06-08 Siemens Aktiengesellschaft Method of producing preforms of cadmium-free silver-metal oxide compound materials for electric contacts

Also Published As

Publication number Publication date
US4681702A (en) 1987-07-21
DE3304637A1 (en) 1984-08-16
DE3461872D1 (en) 1987-02-05
ATE24628T1 (en) 1987-01-15
DE3483479D1 (en) 1990-11-29
EP0182386B1 (en) 1990-10-24
EP0182386A2 (en) 1986-05-28
JPS59148215A (en) 1984-08-24
JPH0377265B2 (en) 1991-12-10
EP0118708B1 (en) 1986-12-30
ATE57789T1 (en) 1990-11-15
EP0118708A1 (en) 1984-09-19

Similar Documents

Publication Publication Date Title
EP0182386A3 (en) Contact material for low-tension switchgear and method of producing contact parts of this material
JPS5249916A (en) Material for electric contact consisting of ag-metal oxides
NZ216332A (en) Solid contact material containing lanthanum, and oxidative conversion of hydrocarbons
DE3460230D1 (en) Sintered material for electrical contacts and its method of manufacture
KR890002931A (en) Electrical contacts for vacuum interrupters
DE3587005D1 (en) METHOD FOR PRODUCING SINTER CONTACT MATERIALS.
ATE3345T1 (en) MATERIAL FOR ELECTRICAL CONTACTS.
ES8305528A1 (en) Material for electrical contacts.
DK0586411T3 (en) Silver-based contact material for use in switches in the field of energy technology and progress small for the manufacture of connectors of this material
ZA854389B (en) Sintered contact material for low-voltage switching apparatus in power engineering
US5207842A (en) Material based on silver and tin oxide for the production of electrical contacts; electrical contacts thus produced
NO841647L (en) ELECTRICAL ISOLATOR
Lubcke et al. Polycomponent Materials Based on Ag--MeO as Contact Material for Low Voltage Switchgears
Walczuk Studies of Combustion Behaviour of Contact Materials for Low-Voltage Circuit-Breakers
RU93004059A (en) MATERIAL FOR ELECTRICAL CONTACTS ON THE BASIS OF A SILVER-OXIDE TIN COMPOSITION
ES2074807T3 (en) ELECTRIC CONDUCTOR, MANUFACTURING PROCEDURE FOR AN ELECTRONIC CONDUCTOR AND ELECTRODE FOR ELECTROLYSIS CELL.
JPS57126933A (en) Electreical contact material for sealing-in
JPS57126932A (en) Electrical contact material for sealing-in
JPS5776141A (en) Electric contact meterial
DE4024939A1 (en) Contact material compsn. for use in electrical switches - consisting of silver tin oxide for one of contacts and pure silver silver with low nickel or with copper contact for other contact
UA10741A (en) Sintered material for electric contacts
Ruppin et al. Extrusion of Composite Wires for Switch Contacts
JPS5749659A (en) Water-tree-resistant electrical insulating composition
RO80775B1 (en) Process for obtaining sintered electric contacts from silver-copper-nickel
Cuthrell et al. Surface contaminant characterization using potential-current curves

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AC Divisional application: reference to earlier application

Ref document number: 118708

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19870407

17Q First examination report despatched

Effective date: 19890403

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 118708

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR GB IT LI NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19901024

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19901024

Ref country code: GB

Effective date: 19901024

REF Corresponds to:

Ref document number: 57789

Country of ref document: AT

Date of ref document: 19901115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3483479

Country of ref document: DE

Date of ref document: 19901129

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: DODUCO GMBH & CO. DR.EUGEN DUERRWAECHTER

Effective date: 19910724

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19931222

Year of fee payment: 11

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19940723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19950130

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19970123

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970317

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19970429

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980131

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19980131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST