ATE113318T1 - MOLYBDENUM MATERIAL, ESPECIALLY FOR LAMP MANUFACTURE. - Google Patents

MOLYBDENUM MATERIAL, ESPECIALLY FOR LAMP MANUFACTURE.

Info

Publication number
ATE113318T1
ATE113318T1 AT90124464T AT90124464T ATE113318T1 AT E113318 T1 ATE113318 T1 AT E113318T1 AT 90124464 T AT90124464 T AT 90124464T AT 90124464 T AT90124464 T AT 90124464T AT E113318 T1 ATE113318 T1 AT E113318T1
Authority
AT
Austria
Prior art keywords
pref
esp
ppm
content
cpd
Prior art date
Application number
AT90124464T
Other languages
German (de)
Inventor
Cosetta Dr Setti
Original Assignee
Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
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 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh filed Critical Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
Application granted granted Critical
Publication of ATE113318T1 publication Critical patent/ATE113318T1/en

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Glass Compositions (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Powder Metallurgy (AREA)

Abstract

A Mo material, for lamp mfr., is doped with K, Si and Al, the novelty being that the Al content is 80-600 (pref. 100-300, esp. 140-180) wt. ppm. Prodn. of the Mo material involves adding Al as an unstable cpd. (esp. the nitrate) to a pulverised Mo cpd. (esp. MoO3 of more than 99.97 wt. % purity) and then reducing. Pref. the material has an Al/K wt. ratio of 1:0.8-2.0 and an Al/Si wt. ratio of 1:1.8-3.8, the K content being 100-400 (pref. 250-300 or 130-170) wt. ppm and the Si content being 200-700 (pref. 400-600 or 270-320) wt. ppm. After redn., the Mo material is pressed to rod, densely sintered at 1700 deg.C without direct current passage and then worked to form pins, tubes, wires or strip.
AT90124464T 1990-02-01 1990-12-17 MOLYBDENUM MATERIAL, ESPECIALLY FOR LAMP MANUFACTURE. ATE113318T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4002974A DE4002974A1 (en) 1990-02-01 1990-02-01 Doped molybdenum material esp. for lamp mfr. - with controlled aluminium content for high quality and low reject rate

Publications (1)

Publication Number Publication Date
ATE113318T1 true ATE113318T1 (en) 1994-11-15

Family

ID=6399219

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90124464T ATE113318T1 (en) 1990-02-01 1990-12-17 MOLYBDENUM MATERIAL, ESPECIALLY FOR LAMP MANUFACTURE.

Country Status (7)

Country Link
EP (1) EP0439775B1 (en)
JP (1) JP2766081B2 (en)
KR (1) KR0178038B1 (en)
AT (1) ATE113318T1 (en)
DE (2) DE4002974A1 (en)
ES (1) ES2060913T3 (en)
HU (1) HU210281B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9415217U1 (en) 1994-09-21 1996-01-25 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München High pressure discharge lamp
DE19603300C2 (en) * 1996-01-30 2001-02-22 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric lamp with molybdenum foil bushings for a lamp vessel made of quartz glass
DE19603301C2 (en) * 1996-01-30 2001-02-22 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Electric lamp with molybdenum foil bushings for a lamp vessel made of quartz glass

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3676083A (en) * 1969-01-21 1972-07-11 Sylvania Electric Prod Molybdenum base alloys
JPS57123625A (en) * 1981-01-23 1982-08-02 Toshiba Corp Bulb
US4514234A (en) * 1983-02-10 1985-04-30 Tokyo Shibaura Denki Kabushiki Kaisha Molybdenum board and process of manufacturing the same
JPS60194043A (en) * 1984-03-14 1985-10-02 Toshiba Corp Tube bulb weld
JPS63114935A (en) * 1986-10-31 1988-05-19 Tokyo Tungsten Co Ltd Molybdenum crucible and its production
JPH0232340B2 (en) * 1986-12-25 1990-07-19 Tokyo Tungsten Kk MORIBUDENZAI
JPS63192840A (en) * 1987-02-06 1988-08-10 Tokyo Tungsten Co Ltd Molybdenum material for dot printer

Also Published As

Publication number Publication date
KR0178038B1 (en) 1999-02-18
HU908037D0 (en) 1991-06-28
EP0439775A1 (en) 1991-08-07
DE59007562D1 (en) 1994-12-01
HUT62946A (en) 1993-06-28
DE4002974A1 (en) 1991-08-08
JP2766081B2 (en) 1998-06-18
JPH04214836A (en) 1992-08-05
ES2060913T3 (en) 1994-12-01
EP0439775B1 (en) 1994-10-26
HU210281B (en) 1995-03-28
KR910021490A (en) 1991-12-20

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Legal Events

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