WO2001022464A1 - Materiau support - Google Patents

Materiau support Download PDF

Info

Publication number
WO2001022464A1
WO2001022464A1 PCT/EP2000/009242 EP0009242W WO0122464A1 WO 2001022464 A1 WO2001022464 A1 WO 2001022464A1 EP 0009242 W EP0009242 W EP 0009242W WO 0122464 A1 WO0122464 A1 WO 0122464A1
Authority
WO
WIPO (PCT)
Prior art keywords
support material
mercury
carrier material
temperature
material according
Prior art date
Application number
PCT/EP2000/009242
Other languages
German (de)
English (en)
Inventor
Ludwig Schuster
Wolfgang Risch
Original Assignee
Sli Lichtsysteme Gmbh
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 Sli Lichtsysteme Gmbh filed Critical Sli Lichtsysteme Gmbh
Publication of WO2001022464A1 publication Critical patent/WO2001022464A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186—Getter supports

Definitions

  • the invention relates to a carrier material for a device which serves as a mercury source and / or gas absorber (getter) and / or electrode shielding in fluorescent lamps.
  • Mercury is an essential part of the filling of a fluorescent lamp.
  • it is also usual to introduce it in solid form, thus as an alloy or amalgam.
  • the mercury as a component of an intermetallic mixture can either be accommodated in a metallic container or applied to a metal band, which each consist of the carrier material mentioned. The application can be carried out, for example, by rolling on a mixture in powder form.
  • a getter material is preferably also located on the band. either on the same side as the mercury or as the mixture containing mercury (e.g. Hg, Zr, Ti, Su.Cu etc.) or on the side facing away from the mercury.
  • This getter material possibly absorbs impurities occurring in the fluorescent lamp.
  • a metal carrier tape can be used in a wide variety of shapes and dimensions in the lamp, u. a. also as a so-called electrode shield between the electrode and the lamp envelope, in order to avoid contamination or even blackening of the lamp envelope from, for example, metal vapors.
  • the carrier material and mercury are heated to a sufficiently high temperature by means of inductive heating in an alternating electromagnetic field.
  • the heating takes place by means of eddy currents on the one hand and magnetic reversal processes on the other. If the temperature exceeds the Curie temperature of the carrier material, the permeability takes the value 1, i.e. the portion of the heating caused by magnetic reversal losses is eliminated and the effect of the eddy current processes decreases.
  • the Curie temperature is between 700 ° C and 770 ° C or for nickel at 358 ° C.
  • the temperature of the device mentioned at the outset which can be achieved by inductive heating is essentially determined by the carrier material. If the temperature required for the thermal decomposition of the mercury and for triggering a getter process is above the Curie temperature of the carrier material used, a high energy expenditure must be driven after it has been exceeded in order to achieve the required temperature solely through the eddy current processes. In addition to the resulting high electrical energy expenditure for these processes, there is also the expenditure for cooling the system required for inductive heating, which increases with the current intensity. At the same time, the procurement costs of this system, which is required for inductive heating, are also increasing.
  • the object on which the invention is based is therefore seen in reducing the energy expenditure which is required on the one hand for the inductive heating of the device mentioned at the beginning and on the other hand for cooling the system required for inductive heating, and also the acquisition costs for this system to improve the energy efficiency of the entire process.
  • a preferred embodiment of a carrier material according to the invention is a ferromagnetic alloy made of iron, cobalt and vanadium, specifically an alloy Fe x Co v V z , in which x and y are each between 5 and 95 percent by weight and z between 0 and 10 percent by weight of the total weight. Since the mechanical properties of the carrier material, such as elongation, yield strength, tensile strength, hardness etc., assume poorer values with respect to the further machinability with increasing cobalt content of this alloy, smaller amounts of vanadium are added within the range specified in order to counteract this.
  • the induction heating of the device using such a carrier material will result in temperature reaching the required final temperature, i.e. the temperature at which the mercury compound is thermally digested and a getter process can also be carried out if necessary, utilizing both the eddy current and magnetic reversal processes, as long as this final temperature is still below this increased Curie temperature according to the invention.
  • the advantage resulting from the invention is thus that the electrical energy required for inductive heating is high is lowered. This in turn means that the cost of cooling the system required for inductive heating is also drastically reduced. Another advantage is the considerable reduction in the initial cost of the system required for inductive heating, since it can now be designed for lower energy consumption.
  • the respective special alloy of the carrier material according to the invention can be set such that its Curie temperature corresponds to the required minimum end temperature in the respective special manufacturing process of the fluorescent lamps or is slightly above this end temperature.
  • the carrier material Before the mixture containing the mercury is applied, it may be expedient to coat the carrier material on one side or on both sides with a nickel layer.

Landscapes

  • Discharge Lamp (AREA)

Abstract

On utilise comme matériau support d'un dispositif servant de source de mercure et/ou d'absorbeur de gaz (sorbeur) et/ou de blindage d'électrode dans les tubes fluorescents, un alliage ferromagnétique dont la température de Curie est supérieure à celle du fer pur.
PCT/EP2000/009242 1999-09-21 2000-09-21 Materiau support WO2001022464A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19945072 1999-09-21
DE19945072.2 1999-09-21

Publications (1)

Publication Number Publication Date
WO2001022464A1 true WO2001022464A1 (fr) 2001-03-29

Family

ID=7922677

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/009242 WO2001022464A1 (fr) 1999-09-21 2000-09-21 Materiau support

Country Status (2)

Country Link
DE (1) DE10047440B4 (fr)
WO (1) WO2001022464A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2110719A (en) * 1981-11-30 1983-06-22 Anelva Corp Sputtering apparatus
WO1993011655A1 (fr) * 1991-11-27 1993-06-10 Minnesota Mining And Manufacturing Company Materiau suscepteur a rayonnements electromagnetiques utilisant des particules d'un alliage amorphe ferromagnetique
RU2024103C1 (ru) * 1991-06-27 1994-11-30 Научно-исследовательский институт "Платан" Мишень светоклапанной электронно-лучевой трубки
EP0691670A2 (fr) * 1994-07-07 1996-01-10 Saes Getters S.P.A. Combinaison de matériaux pour dispositifs dispensateurs de mercure, méthode de préparation et dispositifs ainsi obtenus
WO1997019461A1 (fr) * 1995-11-23 1997-05-29 Saes Getters S.P.A. Procede de production d'un dispositif de diffusion du mercure, de sorption de gaz reactifs et de blindage d'electrode dans des lampes fluorescentes, et dispositif ainsi produit
WO1998053479A1 (fr) * 1997-05-22 1998-11-26 Saes Getters S.P.A. Dispositif et procede pour introduire de petites quantites de mercure dans des lampes fluorescentes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657589A (en) * 1969-10-20 1972-04-18 Getters Spa Mercury generation
US4308650A (en) * 1979-12-28 1982-01-05 Gte Products Corporation Method of making a mercury dispenser, getter and shield assembly for a fluorescent lamp
DE9210171U1 (fr) * 1992-07-29 1992-10-15 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen, De
DE19528390A1 (de) * 1995-08-02 1997-02-06 Sli Lichtsysteme Gmbh Metallband, insbesondere Stahlband, zur Herstellung von Schilden für den Einbau in insbesondere Niederdruck-Entladungslampen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2110719A (en) * 1981-11-30 1983-06-22 Anelva Corp Sputtering apparatus
RU2024103C1 (ru) * 1991-06-27 1994-11-30 Научно-исследовательский институт "Платан" Мишень светоклапанной электронно-лучевой трубки
WO1993011655A1 (fr) * 1991-11-27 1993-06-10 Minnesota Mining And Manufacturing Company Materiau suscepteur a rayonnements electromagnetiques utilisant des particules d'un alliage amorphe ferromagnetique
EP0691670A2 (fr) * 1994-07-07 1996-01-10 Saes Getters S.P.A. Combinaison de matériaux pour dispositifs dispensateurs de mercure, méthode de préparation et dispositifs ainsi obtenus
WO1997019461A1 (fr) * 1995-11-23 1997-05-29 Saes Getters S.P.A. Procede de production d'un dispositif de diffusion du mercure, de sorption de gaz reactifs et de blindage d'electrode dans des lampes fluorescentes, et dispositif ainsi produit
WO1998053479A1 (fr) * 1997-05-22 1998-11-26 Saes Getters S.P.A. Dispositif et procede pour introduire de petites quantites de mercure dans des lampes fluorescentes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section EI Week 199527, Derwent World Patents Index; Class V05, AN 1995-205405, XP002157432 *

Also Published As

Publication number Publication date
DE10047440A1 (de) 2001-07-19
DE10047440B4 (de) 2004-04-29

Similar Documents

Publication Publication Date Title
DE69821278T2 (de) Magnetkern und Herstellungsverfahren
DE60125195T2 (de) Fecral-legierung für den gebrauch als elektrisches heizelement
DE102009043580B4 (de) Verfahren zur Herstellung einer Verbindungsstruktur zwischen zwei Supraleitern und Struktur zur Verbindung zweier Supraleiter
DE602005001248T2 (de) Verfahren zur Reduzierung des Sauerstoffgehalts eines Pulvers und das daraus hergestellte Produkt.
EP1786941A1 (fr) Acier austenitique antirouille et a haute resistance
EP2756106A1 (fr) Bande magnétique de résistance supérieure, à grains non orientés et de polarisation élevée, et procédé de production associe
WO2008092419A2 (fr) Alliage fer-nickel-chrome-silicium
WO2006087294A1 (fr) Noyau de transformateur a blindage magnetique
EP0976680B1 (fr) Poudre de siliciure de fer carbonyle
DE10047440B4 (de) Trägermaterial
DE1169593B (de) Kathode hoher Elektronenemission
DE2655433A1 (de) Elektrischer leiter aus einer aluminium-legierung
DE102019126030A1 (de) Samarium-eisen-bismut-stickstoff-basiertes magnetpulver und samarium-eisen-bismut-stickstoff-basierter sintermagnet
WO2006027119A2 (fr) Desoxydation de poudres de métaux valves
DE3017833C2 (de) Verfahren zum Herstellen von ferromagnetischen Metallteilchen
DE102018101391A1 (de) Verfahren zur Herstellung eines dispersionsverfestigten Kupferwerkstoffes und dispersionsverfestigter Kupferwerkstoff
DE102006032520B4 (de) Verfahren zur Herstellung von Magnetkernen, Magnetkern und induktives Bauelement mit einem Magnetkern
DE2709626C3 (de) Verfahren zum Herabsetzen der Ummagnetisierungsverluste in dünnen Bändern aus weichmagnetischen amorphen Metallegierungen
DE60030983T2 (de) Luftseitige komponenten einer festoxid-brennstoffzelle
DE2449361C2 (de) Verfahren zur Herstellung von permanentmagnetischem Material
DE3103965A1 (de) Magnetlegierung
DE2121452B2 (de) Verfahren zur Herstellung einer gesinterten Dauermagnetlegierung
DE927692C (de) Die Verwendung von Eisen-Silizium-Legierungen als Werkstoff fuer magnetisch beanspruchte Gegenstaende
DE512727C (de) Chrom- und aluminiumhaltige Eisenlegierung mit hoher Permeabilitaet zur Verwendung in elektrischen Stromkreisen und Verfahren zur Behandlung
DE2357687C3 (de) Anode für eine Röntgen-Feinstrukturröhre

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CZ HU JP PL US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP