DE58909449D1 - Powder metallurgical process for producing a semi-finished product for electrical contacts from a composite material based on silver with iron. - Google Patents

Powder metallurgical process for producing a semi-finished product for electrical contacts from a composite material based on silver with iron.

Info

Publication number
DE58909449D1
DE58909449D1 DE58909449T DE58909449T DE58909449D1 DE 58909449 D1 DE58909449 D1 DE 58909449D1 DE 58909449 T DE58909449 T DE 58909449T DE 58909449 T DE58909449 T DE 58909449T DE 58909449 D1 DE58909449 D1 DE 58909449D1
Authority
DE
Germany
Prior art keywords
silver
semi
iron
producing
composite 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.)
Expired - Fee Related
Application number
DE58909449T
Other languages
German (de)
Inventor
Volker Dr Dipl Phys Behrens
Roland Dr Dipl Ing Michal
Karl E Dr Dipl Phys Saeger
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.)
Doduco Contacts and Refining GmbH
Original Assignee
Doduco GmbH and Co KG Dr Eugen Duerrwaechter
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 Doduco GmbH and Co KG Dr Eugen Duerrwaechter filed Critical Doduco GmbH and Co KG Dr Eugen Duerrwaechter
Application granted granted Critical
Publication of DE58909449D1 publication Critical patent/DE58909449D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/30—Making metallic powder or suspensions thereof using chemical processes with decomposition of metal compounds, e.g. by pyrolysis
    • 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
    • B22F9/26—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions using gaseous reductors
    • 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
    • C22C1/0466—Alloys based on noble metals
    • 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
    • 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
DE58909449T 1988-04-16 1989-04-12 Powder metallurgical process for producing a semi-finished product for electrical contacts from a composite material based on silver with iron. Expired - Fee Related DE58909449D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3812686 1988-04-16

Publications (1)

Publication Number Publication Date
DE58909449D1 true DE58909449D1 (en) 1995-11-02

Family

ID=6352116

Family Applications (1)

Application Number Title Priority Date Filing Date
DE58909449T Expired - Fee Related DE58909449D1 (en) 1988-04-16 1989-04-12 Powder metallurgical process for producing a semi-finished product for electrical contacts from a composite material based on silver with iron.

Country Status (3)

Country Link
EP (1) EP0338401B1 (en)
DE (1) DE58909449D1 (en)
ES (1) ES2080052T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117312A1 (en) * 1991-05-27 1992-12-03 Siemens Ag SILVER-BASED CONTACT MATERIAL FOR USE IN SWITCHGEAR DEVICES OF ENERGY TECHNOLOGY AND METHOD FOR THE PRODUCTION OF CONTACT PIECES FROM THIS MATERIAL
DE102004036113B4 (en) * 2004-07-24 2006-10-05 Ami Doduco Gmbh Splitter plate for an arc extinguishing chamber
JP5342931B2 (en) * 2009-06-05 2013-11-13 マブチモーター株式会社 Sliding contact material, clad composite material and motor
CN102114546A (en) * 2011-03-29 2011-07-06 兰州金川新材料科技股份有限公司 Method for preparing spherical silver powder

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE643567C (en) * 1931-12-25 1937-04-12 Molybdenum Comp Nv Process for the production of two- or multi-substance bodies
GB563511A (en) * 1942-02-25 1944-08-17 Mallory Metallurg Prod Ltd Improvements in and relating to electric contacting elements
DE888178C (en) * 1943-04-04 1953-08-31 Degussa Contact material made of metals with good electrical conductivity and a hard material component produced by powder metallurgy
US2806786A (en) * 1954-05-14 1957-09-17 Gen Electric Method of making sintered electrical contact material
DE1029571B (en) * 1956-07-13 1958-05-08 Siemens Ag Process for the production of a sintered composite material, in particular for electrical contacts
GB1489545A (en) * 1976-05-20 1977-10-19 Meidensha Electric Mfg Co Ltd Electrical contact materials for vacuum switches
DE2853931A1 (en) * 1978-12-14 1980-06-19 Dornier System Gmbh METHOD FOR PRODUCING METALLIC POWDER
DE2929630C2 (en) * 1979-07-21 1983-12-15 Dornier System Gmbh, 7990 Friedrichshafen Process for the production of silver powder
YU46258B (en) * 1987-06-06 1993-05-28 Degussa Ag. APPLICATION OF SILVER IRON MATERIAL FOR ELECTRICAL CONTACTS

Also Published As

Publication number Publication date
ES2080052T3 (en) 1996-02-01
EP0338401A1 (en) 1989-10-25
EP0338401B1 (en) 1995-09-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AMI DODUCO GMBH, 75181 PFORZHEIM, DE

8339 Ceased/non-payment of the annual fee