GB1399385A - Tungsten bodies capable of retaining their shape at high temperatures - Google Patents

Tungsten bodies capable of retaining their shape at high temperatures

Info

Publication number
GB1399385A
GB1399385A GB4143972A GB4143972A GB1399385A GB 1399385 A GB1399385 A GB 1399385A GB 4143972 A GB4143972 A GB 4143972A GB 4143972 A GB4143972 A GB 4143972A GB 1399385 A GB1399385 A GB 1399385A
Authority
GB
United Kingdom
Prior art keywords
retaining
shape
high temperatures
bodies capable
tungsten bodies
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
Application number
GB4143972A
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.)
Egyesuelt Izzolampa es Villamossagi Rt
Original Assignee
Egyesuelt Izzolampa es Villamossagi Rt
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 Egyesuelt Izzolampa es Villamossagi Rt filed Critical Egyesuelt Izzolampa es Villamossagi Rt
Publication of GB1399385A publication Critical patent/GB1399385A/en
Expired 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
    • 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)
  • Radiation-Therapy Devices (AREA)
  • Resistance Heating (AREA)

Abstract

1399385 Electric incandescent lamps EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG 6 Sept 1972 [13 Sept 1971] 41439/72 Heading H1F [Also in Division C7] A lamp filament comprises a tungsten coil containing up to 20 p.p.m. of one or more of the conventional additives K, Si, Al, Ga and Te and 20-500 p.p.m. of an additional additive consisting of Ti and/or Zr. The lamp may contain an atmosphere which includes halogenated hydrocarbons.
GB4143972A 1971-09-13 1972-09-06 Tungsten bodies capable of retaining their shape at high temperatures Expired GB1399385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HUEE001948 HU162969B (en) 1971-09-13 1971-09-13

Publications (1)

Publication Number Publication Date
GB1399385A true GB1399385A (en) 1975-07-02

Family

ID=10995383

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4143972A Expired GB1399385A (en) 1971-09-13 1972-09-06 Tungsten bodies capable of retaining their shape at high temperatures

Country Status (4)

Country Link
AT (1) AT319399B (en)
GB (1) GB1399385A (en)
HU (1) HU162969B (en)
SE (1) SE382470B (en)

Also Published As

Publication number Publication date
SE382470B (en) 1976-02-02
DE2245120A1 (en) 1973-03-29
DE2245120B2 (en) 1976-01-29
HU162969B (en) 1973-05-28
AT319399B (en) 1974-12-27

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee