FR2133764A1 - Shaped body prodn - from powder contg noble metal and subsequently oxidised non-noble metal - Google Patents

Shaped body prodn - from powder contg noble metal and subsequently oxidised non-noble metal

Info

Publication number
FR2133764A1
FR2133764A1 FR7213248A FR7213248A FR2133764A1 FR 2133764 A1 FR2133764 A1 FR 2133764A1 FR 7213248 A FR7213248 A FR 7213248A FR 7213248 A FR7213248 A FR 7213248A FR 2133764 A1 FR2133764 A1 FR 2133764A1
Authority
FR
France
Prior art keywords
noble metal
press
temp
shaped body
prodn
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.)
Withdrawn
Application number
FR7213248A
Other languages
French (fr)
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.)
BERGBAU HUTTENKOM A FUNK
Original Assignee
BERGBAU HUTTENKOM A FUNK
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 BERGBAU HUTTENKOM A FUNK filed Critical BERGBAU HUTTENKOM A FUNK
Publication of FR2133764A1 publication Critical patent/FR2133764A1/en
Withdrawn legal-status Critical Current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
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1078—Alloys containing non-metals by internal oxidation of material in solid state
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture Of Switches (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)

Abstract

Prodn. of shaped bodies, esp. parts of electric switches, by spray dispersing a molten alloy contg. nobel metal(s) and non-noble metal(s), and compressing and sintering at an elevated temp. The resulting, partly oxidised, powder, is improved in that a non-noble metal is used which is capable forming mixed crystals with the noble metal; the alloy powder is moulded under a press of 1-5 t/cm2; the resulting shaped body is sintered at a temp. below the solidus temp. under an oxygen partial press. of 1 atm. to >10 atm. gauge until the desired degree of oxidation of the non-noble metal component is reached; then the body is compressed accurately to the final dimension sunder a press. of 6-12 t/cm2. Uniform distribution of the components is reached; the particle size is small. The spark erosion is diminished.
FR7213248A 1971-04-13 1972-04-14 Shaped body prodn - from powder contg noble metal and subsequently oxidised non-noble metal Withdrawn FR2133764A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15439571A DD102319A1 (en) 1971-04-13 1971-04-13

Publications (1)

Publication Number Publication Date
FR2133764A1 true FR2133764A1 (en) 1972-12-01

Family

ID=5483701

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7213248A Withdrawn FR2133764A1 (en) 1971-04-13 1972-04-14 Shaped body prodn - from powder contg noble metal and subsequently oxidised non-noble metal

Country Status (5)

Country Link
DD (1) DD102319A1 (en)
DE (1) DE2215686A1 (en)
FR (1) FR2133764A1 (en)
HU (1) HU164003B (en)
SU (1) SU464094A3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488536A1 (en) * 1980-08-14 1982-02-19 Degussa PROCESS FOR THE MANUFACTURE OF SEMI-PRODUCTS FROM PLATINUM RELEASED IN DISPERSION
FR2511041A1 (en) * 1981-08-07 1983-02-11 Louyot Comptoir Lyon Alemand Material for high intensity electric contacts - using silver base with nickel oxide
EP0488996A2 (en) * 1987-12-12 1992-06-03 Fujitsu Limited Sintered magnesium-based composite material and process for preparing same
EP1308974A1 (en) * 2001-07-18 2003-05-07 Nec Schott Components Corporation Thermal fuse

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2488536A1 (en) * 1980-08-14 1982-02-19 Degussa PROCESS FOR THE MANUFACTURE OF SEMI-PRODUCTS FROM PLATINUM RELEASED IN DISPERSION
FR2511041A1 (en) * 1981-08-07 1983-02-11 Louyot Comptoir Lyon Alemand Material for high intensity electric contacts - using silver base with nickel oxide
EP0488996A2 (en) * 1987-12-12 1992-06-03 Fujitsu Limited Sintered magnesium-based composite material and process for preparing same
EP0488996A3 (en) * 1987-12-12 1992-07-08 Fujitsu Limited Sintered magnesium-based composite material and process for preparing same
EP1308974A1 (en) * 2001-07-18 2003-05-07 Nec Schott Components Corporation Thermal fuse
EP1308974A4 (en) * 2001-07-18 2003-09-03 Nec Schott Components Corp Thermal fuse
US6724292B2 (en) 2001-07-18 2004-04-20 Nec Schott Components Corporation Thermal fuse

Also Published As

Publication number Publication date
HU164003B (en) 1973-12-28
DD102319A1 (en) 1973-12-12
DE2215686A1 (en) 1972-12-07
SU464094A3 (en) 1975-03-15

Similar Documents

Publication Publication Date Title
JPS5274509A (en) Ni-base sintered alloy
GB1100164A (en) Method for making refractory metal contacts having integral welding surfaces thereon
GB1113794A (en) A composite metal member suitable for use as an electrical contact
FR2133764A1 (en) Shaped body prodn - from powder contg noble metal and subsequently oxidised non-noble metal
GB1032005A (en) Ruthenium alloys
US3116146A (en) Method for sintering tungsten powder
GR3002806T3 (en) Process for the preparation of alloy powders for use in dental amalgams
GB1137426A (en) Improvements in and relating to metal extrusion dies
JPS5757804A (en) Production of honeycomb-shaped molding made of metal
ES461997A1 (en) Composite powder for use in manufacturing electrical contacts
ES415959A1 (en) Production of silicon nitride bodies
GB1469976A (en) Method for producing an electrical power contact
GB1162882A (en) Improvements in Chromium-Containing Alloys of Improved Resistance to Oxidation and Nitrification
GB1279293A (en) Improvements in or relating to powdered metal composites and method of making the same
GB1055538A (en) Electrical contacts
FR2218935A1 (en) Reducing nitrogen content of a gas - using refractory oxide, nickel and copper catalyst
GB1313359A (en)
FR2229663A1 (en) Insulating ceramic having controlled porosity - prepd. by sinter process comprising final sintering without over-pressure
FR2252995A2 (en) Insulating ceramic having controlled porosity - prepd. by sinter process comprising final sintering without over-pressure
GB1198616A (en) A Method of Forming Sintered Composite Bodies.
GB932460A (en) Improvements in or relating to the manufacture of sintered metallic bodies
GB1001009A (en) Working aluminium
JPS5687641A (en) Manufacture of silver-tin oxide electrical contact
GB1376848A (en) Electrical contact materials
JPH01104731A (en) Manufacture of electric contact material

Legal Events

Date Code Title Description
ST Notification of lapse