EP1357203B1 - Einschmelzfolie und zugehörige Lampe mit dieser Folie - Google Patents

Einschmelzfolie und zugehörige Lampe mit dieser Folie Download PDF

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Publication number
EP1357203B1
EP1357203B1 EP03009065A EP03009065A EP1357203B1 EP 1357203 B1 EP1357203 B1 EP 1357203B1 EP 03009065 A EP03009065 A EP 03009065A EP 03009065 A EP03009065 A EP 03009065A EP 1357203 B1 EP1357203 B1 EP 1357203B1
Authority
EP
European Patent Office
Prior art keywords
foil
welding
stack
alloy
ruthenium
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 - Lifetime
Application number
EP03009065A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1357203A1 (de
Inventor
Franz Breuer
Bodo Mittler
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft 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 Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1357203A1 publication Critical patent/EP1357203A1/de
Application granted granted Critical
Publication of EP1357203B1 publication Critical patent/EP1357203B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/32—Sealing leading-in conductors
    • H01J9/323—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device
    • H01J9/326—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device making pinched-stem or analogous seals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/36—Seals between parts of vessels; Seals for leading-in conductors; Leading-in conductors
    • H01J61/366—Seals for leading-in conductors
    • H01J61/368—Pinched seals or analogous seals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/38—Seals for leading-in conductors

Definitions

  • the invention relates to a sealing film and associated lamp with this film according to the preamble of claim 1. It is in particular to Molybdenum foils, which find application in bruises, as they are used for sealing of incandescent and discharge lamps are common.
  • the film is with a protective layer of Al, Cr, Si, Ti or Ta provided.
  • the thickness is 5 to 100 nm.
  • a similar technique is known from DE-A 30 06 846, in which the same Purpose layers of Ta, Nb, V, Cr, Ti, Y, La, Hf or Sc are used.
  • the layer thickness is 10 to 200 nm.
  • US Pat. No. 3,420,944 discloses a partial chrome plating on a system two slides that partially overlap.
  • the oxidation of the film-pin connections is not responsible for the failure of the film seal, but the attack of the corrosive filling components (for example, metal halides) or filling gases on the molybdenum foil.
  • the molybdenum foil is previously sandblasted, resulting in an improvement of the glass-metal compound. Sandblasting, however, results in resistance welding to high rejects, as this non-conductive Al 2 O 3 particles remain on the Mo film surface.
  • the wear of the resistance welding electrodes increases very much. In the case of sandblasted foils replacement of the electrode is necessary after approx. 70 welds (compared to a replacement interval of approx. 1000 welds with untreated foil), so that a frequent change of the electrodes is necessary.
  • From DE-A 199 61 551 is the use of Ru-containing films in the lamp industry known. In this case, a uniform coating of at least one side of the film recommended.
  • meltdown film is composed as a stack of two films.
  • a molybdenum foil is used in each case for both parts.
  • One or both Parts are specific with pure ruthenium, rhenium or a compound or alloy containing ruthenium, or rhenium, coated.
  • a coating material is especially pure ruthenium (Ru), rhenium (Re) and a molybdenum-ruthenium alloy with eutectic composition.
  • Ru mediates not only a reliable glass-metal connection, so good adhesion of both Components and thus a good seal is achieved, but also one simple joining connection during welding or soldering; it is also halogen resistant and inert with regard to any contact with the filling.
  • the first film is specifically designed for the secure welding of external power leads (typically molybdenum pins) and designed for safe oxidation protection. It is provided at least in the region of the connection between the power supply and the film on both sides with a oxidation-preventing or at least reducing coating with a layer thickness of at least 800 nm. Both materials are suitable for this film, but the best results are achieved with ruthenium.
  • the second, with respect to the piston volume inside film is designed as a sealing distance. It is not at all or unilaterally provided with a thin coating ( ⁇ 120 nm), which ensures the secure welding of the coil ends or internal power supply. Ruthenium, pure or as an alloy, in particular Mo-Ru alloy, is particularly suitable here
  • the thickness of the layer which consists of at least one of the materials rhenium, chromium or ruthenium is preferably in the range of 1.5 to 3 microns for the two-sided coated welding foil.
  • the layer thickness for the single-side coated sealing film is in the range of at least 20 nm in case the welding foil is coated with Ru.
  • the sealing film can be coated be or used for the coating on one side in particular Ru become.
  • the use of a eutectic is preferred for the sealing film Mo-Ru alloy and a layer thickness in the range of 40 to 80 nm.
  • the two foils are joined together by welding (in particular resistance or laser welding).
  • the coating can be carried out by known coating methods, preferably by sputtering.
  • the oxidation resistance of the pin-foil welded joints becomes by coating the power supply lines with the same or similar coating materials that can be used for the film, elevated.
  • the electric lamps according to the invention have a lamp vessel Quartz glass or toughened glass provided with molybdenum foil feedthroughs Part of at least one pinch seal of the lamp vessel are. In the At least one pinch seal is compressed at least one molybdenum foil gas-tight.
  • FIG. 1 is a halogen incandescent lamp 1 (12V at 100 W power) with a lamp flask 2 made of quartz glass, with the help of a pinch seal 3 is sealed gas-tight.
  • a pinch seal 3 In the pinch seal of the Lamp bulbs are embedded two molybdenum foil stack 4. Inside the lamp envelope is a double-spiraled filament 5, whose simple coiled ends act as internal power supply 6.
  • the internal power supply lines are each with one of the embedded in the pinch seal molybdenum foil stack 7 welded. From the pinch seal 3 protrude two external power supply lines 8, which are connected to one of the two molybdenum foil stack are.
  • the two embedded in the pinch seal molybdenum foil stack 4 exist each of two films 10, 11.
  • the inner sealing film 11 is on one side of the page, on the inner power supply 6 is fixed with a eutectic Mo-Ru alloy 60 nm thick coated.
  • the outer welding foil 10 is pure on both sides Ru coated, the layer thickness is 2.5 microns. Both films are the same width.
  • the outer welding foil is pure on both sides Re coated with a thickness of 2.5 microns.
  • the inner sealing foil 11 is either not at all or one-sided on the side on which the inner power supply 6 is attached, coated with a eutectic Mo-Ru alloy 60 nm thick.
  • the two films 10, 11 overlap to about 10 to 40%, preferably 15 to 30 %, the area of a broad side of the welding film 10 and are in this stacking area welded together.
  • the welding film 10, whose total area is smaller than the sealing film may be, on the, possibly larger, sealing film 11th on.
  • both films 10, 11 are the same width are because it facilitates the orientation and adjustment of the films.
  • Figure 1 the dashed end of the bottom Seal made 11 marked.
  • the coil end which acts as an internal power supply 6, consists of 15 microns thick Tungsten wire, which is simply coiled. Its outer diameter is 55 ⁇ m.
  • the Spiral end and the sealing film 11 are connected by a brazing process.
  • the technique of differentiated ruthenium coating does not only allow an improved connection between foil and power supply, but also a reliable connection of the two films of the stack.
  • the production of the frame can run in accordance with Figure 2 so that initially two Welding films 10 ( Figure 2a) with a U-shaped bent wire bracket 15, as Forerunner for the two outer power supplies serves to be welded. Of the Wire bracket 15 is on top of the double-coated welding foils 10th attached. Subsequently, this frame part on two single-side coated sealing films 11, with a small overlap of about 15% of the area of Welding film 10, wherein the coated sides of the two films touch. The two sheets of the stack are different width and long. The coating is not shown separately. The overlap zone is welded. The weld is symbolically represented as reference numeral 16 ( Figure 2b). Subsequently, a frame part, consisting of internal power supply 6 and filament, on the free End of the welding foils 11 laid and soldered (Figure 2c).

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Adhesives Or Adhesive Processes (AREA)
EP03009065A 2002-04-24 2003-04-17 Einschmelzfolie und zugehörige Lampe mit dieser Folie Expired - Lifetime EP1357203B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10218412A DE10218412A1 (de) 2002-04-24 2002-04-24 Einschmelzfolie und zugehörige Lampe mit dieser Folie
DE10218412 2002-04-24
DE10242035 2002-09-11
DE10242035A DE10242035A1 (de) 2002-04-24 2002-09-11 Einschmelzfolie und zugehörige Lampe mit dieser Folie

Publications (2)

Publication Number Publication Date
EP1357203A1 EP1357203A1 (de) 2003-10-29
EP1357203B1 true EP1357203B1 (de) 2005-02-16

Family

ID=28792843

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03009065A Expired - Lifetime EP1357203B1 (de) 2002-04-24 2003-04-17 Einschmelzfolie und zugehörige Lampe mit dieser Folie

Country Status (9)

Country Link
US (1) US6969950B2 (ja)
EP (1) EP1357203B1 (ja)
JP (1) JP2003346735A (ja)
KR (1) KR20030084706A (ja)
CN (1) CN100359631C (ja)
AT (1) ATE289366T1 (ja)
CA (1) CA2426484A1 (ja)
DE (3) DE10218412A1 (ja)
TW (1) TWI278896B (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004002455A1 (de) * 2003-03-14 2004-09-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lampe mit fixiertem Glasbauteil
DE10312748A1 (de) * 2003-03-21 2004-09-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Entladungslampe
DE102004014211A1 (de) * 2004-03-23 2005-10-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Glühlampe mit carbidhaltigem Leuchtkörper
DE102004034786A1 (de) * 2004-07-19 2006-03-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Glühlampe mit carbidhaltigem Leuchtkörper
US20060108928A1 (en) * 2004-11-24 2006-05-25 Patent-Treuhand-Gesellschaft Fur Elektrisch Gluhlampen Mbh Process for producing a supply conductor for a lamp, and supply conductor for a lamp, as well as lamp having a supply conductor
DE102004058727A1 (de) 2004-12-06 2006-06-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Stromzuführungssystem für eine Lampe mit diesem Stromzuführungssystem
DE102004061736A1 (de) * 2004-12-22 2006-07-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Befestigungsverfahren und danach hergestellte Lampe
DE102004061734A1 (de) * 2004-12-22 2006-07-06 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Befestigungsverfahren und danach hergestellte Lampe
US7823353B2 (en) * 2005-11-22 2010-11-02 Masonite Corporation Door, method of making door, and stack of doors
CN113199168A (zh) * 2021-04-01 2021-08-03 有研工程技术研究院有限公司 高温焊接用钼钌合金箔材及其制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420944A (en) * 1966-09-02 1969-01-07 Gen Electric Lead-in conductor for electrical devices
US3793615A (en) * 1970-11-04 1974-02-19 Gen Electric Oxidation-resistant lead-in conductors for electrical devices
US4110657A (en) * 1977-03-14 1978-08-29 General Electric Company Lead-in seal and lamp utilizing same
NL183794B (nl) 1979-02-26 Philips Nv Hogedrukkwikontladingslamp.
HU185198B (en) * 1982-01-28 1984-12-28 Egyesuelt Izzolampa Current inlet particularly for vacuumtechnical devices
US5021711A (en) * 1990-10-29 1991-06-04 Gte Products Corporation Quartz lamp envelope with molybdenum foil having oxidation-resistant surface formed by ion implantation
JP3480364B2 (ja) * 1999-04-23 2003-12-15 ウシオ電機株式会社 ショートアーク型放電ランプ
EP1065698B1 (en) * 1999-07-02 2008-07-30 Phoenix Electric Co., Ltd. Mount for lamp and lamp seal structure employing the mount
DE19961551A1 (de) * 1999-12-20 2001-06-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Einschmelzfolie und zugehörige Lampe mit dieser Folie
JP2002260581A (ja) * 2001-02-28 2002-09-13 Toshiba Lighting & Technology Corp メタルハライドランプ、メタルハライドランプ点灯装置および自動車用前照灯装置

Also Published As

Publication number Publication date
CA2426484A1 (en) 2003-10-24
DE10218412A1 (de) 2003-11-06
ATE289366T1 (de) 2005-03-15
JP2003346735A (ja) 2003-12-05
US6969950B2 (en) 2005-11-29
KR20030084706A (ko) 2003-11-01
DE10242035A1 (de) 2004-03-25
DE50300315D1 (de) 2005-03-24
EP1357203A1 (de) 2003-10-29
TW200401327A (en) 2004-01-16
US20030201718A1 (en) 2003-10-30
TWI278896B (en) 2007-04-11
CN1453821A (zh) 2003-11-05
CN100359631C (zh) 2008-01-02

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