FR2221812B1 - - Google Patents

Info

Publication number
FR2221812B1
FR2221812B1 FR7309382A FR7309382A FR2221812B1 FR 2221812 B1 FR2221812 B1 FR 2221812B1 FR 7309382 A FR7309382 A FR 7309382A FR 7309382 A FR7309382 A FR 7309382A FR 2221812 B1 FR2221812 B1 FR 2221812B1
Authority
FR
France
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
Application number
FR7309382A
Other versions
FR2221812A1 (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.)
Magyar Tudomanyos Akademia
Original Assignee
Magyar Tudomanyos Akademia
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 Magyar Tudomanyos Akademia filed Critical Magyar Tudomanyos Akademia
Publication of FR2221812A1 publication Critical patent/FR2221812A1/fr
Application granted granted Critical
Publication of FR2221812B1 publication Critical patent/FR2221812B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/04—Incandescent bodies characterised by the material thereof
    • H01K1/10—Bodies of metal or carbon combined with other substance
    • 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
    • B22F3/24—After-treatment of workpieces or articles
    • 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
    • C22C1/045—Alloys based on refractory metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/04—Alloys based on tungsten or molybdenum
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/04—Incandescent bodies characterised by the material thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/02—Manufacture of incandescent bodies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Radiation-Therapy Devices (AREA)
FR7309382A 1972-03-16 1973-03-15 Expired FR2221812B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUMA2339A HU163582B (fr) 1972-03-16 1972-03-16

Publications (2)

Publication Number Publication Date
FR2221812A1 FR2221812A1 (fr) 1974-10-11
FR2221812B1 true FR2221812B1 (fr) 1976-11-05

Family

ID=10998565

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7309382A Expired FR2221812B1 (fr) 1972-03-16 1973-03-15

Country Status (7)

Country Link
US (1) US3853492A (fr)
AT (1) AT316686B (fr)
DE (1) DE2246092A1 (fr)
FR (1) FR2221812B1 (fr)
GB (1) GB1397865A (fr)
HU (1) HU163582B (fr)
NL (1) NL7303655A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2839542B2 (ja) * 1989-04-05 1998-12-16 株式会社東芝 耐振性タングステン線、それを用いた電球用フィラメントおよびハロゲン電球
US5019330A (en) * 1990-08-03 1991-05-28 General Electric Company Method of forming improved tungsten ingots
US6129890A (en) * 1999-09-07 2000-10-10 Osram Sylvania Inc. Method of making non-sag tungsten wire
US6165412A (en) * 1999-09-07 2000-12-26 Osram Sylvania Inc. Method of making non-sag tungsten wire for electric lamps

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2948609A (en) * 1960-08-09 Manufacture of metal articles from
US1602526A (en) * 1922-09-15 1926-10-12 Westinghouse Lamp Co Control of crystal development in refractory metals
GB258642A (en) * 1925-06-20 1926-09-20 Edison Swan Electric Co Ltd Improvements in and relating to tungsten wire
GB427757A (en) * 1933-05-19 1935-04-30 Yukitoshi Sakakura Incandescence bodies and methods of making the same for use as filaments of incandescent electric lamps and for other purposes
NL132462C (fr) * 1963-09-20
DE1533395A1 (de) * 1966-03-11 1969-12-18 Tokvo Shibaura Electric Co Ltd Wolframstoffe mit verbesserter Biegsamkeit,Methode fuer deren Bearbeitung sowie aus diesen Stoffen hergestellte Bauteile
US3475159A (en) * 1967-01-16 1969-10-28 Dow Chemical Co Method for preparing tungsten powders doped with refractory metal oxides
US3682720A (en) * 1970-03-19 1972-08-08 Sylvania Electric Prod Manufacture of substantially non-sagging refractory metal wire
US3798008A (en) * 1972-09-12 1974-03-19 Egyesuelt Izzolampa Retentive tungsten body containing 20{14 50 ppm titanium and/or zirconium

Also Published As

Publication number Publication date
GB1397865A (en) 1975-06-18
NL7303655A (fr) 1973-09-18
HU163582B (fr) 1973-09-27
DE2246092A1 (de) 1973-09-27
US3853492A (en) 1974-12-10
AT316686B (de) 1974-07-25
FR2221812A1 (fr) 1974-10-11

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse