DE102005003892A1 - Seal quality testing method for e.g. metal halide lamp, involves inserting mandrel between two supports, and applying pressure on mandrel by supports, where pressure is increased until arise of cracking - Google Patents
Seal quality testing method for e.g. metal halide lamp, involves inserting mandrel between two supports, and applying pressure on mandrel by supports, where pressure is increased until arise of cracking Download PDFInfo
- Publication number
- DE102005003892A1 DE102005003892A1 DE200510003892 DE102005003892A DE102005003892A1 DE 102005003892 A1 DE102005003892 A1 DE 102005003892A1 DE 200510003892 DE200510003892 DE 200510003892 DE 102005003892 A DE102005003892 A DE 102005003892A DE 102005003892 A1 DE102005003892 A1 DE 102005003892A1
- Authority
- DE
- Germany
- Prior art keywords
- supports
- mandrel
- pressure
- plug
- cracking
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000005336 cracking Methods 0.000 title claims abstract description 9
- 229910001507 metal halide Inorganic materials 0.000 title description 8
- 150000005309 metal halides Chemical class 0.000 title description 8
- 238000003825 pressing Methods 0.000 title description 2
- 238000012372 quality testing Methods 0.000 title 1
- 238000012360 testing method Methods 0.000 claims description 16
- 238000005476 soldering Methods 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 13
- 238000011156 evaluation Methods 0.000 claims description 2
- 229910000679 solder Inorganic materials 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 238000013001 point bending Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- H01J9/42—Measurement or testing during manufacture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/027—Specimens with holes or notches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0274—Tubular or ring-shaped specimens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
Description
Technisches Gebiettechnical area
Die Erfindung geht aus von einem Verfahren zum Testen eine Abdichtung bei Hochdruckentladungslampen mit keramischem Entladungsgefäß.The The invention is based on a method for testing a seal in high-pressure discharge lamps with ceramic discharge vessel.
Im einzelnen handelt es sich insbesondere um die Entwicklung eines mechanischen Qualitätstests für keramische Entladungsgefäße für Metallhalogenidlampen. Dabei werden speziell die keramischen hinsichtlich ihrer mechanischen Stabilität (Resistenz gegen Rissbildung) unter den beim Einlöten der Elektroden herrschenden Belastungsbedingungen bewertet und entsprechende kritische Belastungsgrößen bestimmt.in the particular is the development of a particular mechanical quality tests for ceramic Discharge vessels for metal halide lamps. In this case, especially the ceramic in terms of their mechanical stability (Resistance to cracking) under the soldering of Electrode-ruling load conditions evaluated and appropriate determined critical load sizes.
In modernen Metallhalogenid-Hochdrucklampen wird Keramik als transluzentes und hitzebeständiges Material für das Entladungsgefäß verwendet. Damit lassen sich einige Vorteile gegenüber den bisher verwendeten Entladungsgefäß aus Quarzglas erzielen. So kann z.B. die Temperatur im Betrieb erhöht und somit das Spektrum dem des Tageslichts besser angepasst werden. Keramische Metallhalogenidlampen haben eine geringe Farbstreuung, weil es bei der Herstellung der Keramikgefäße praktisch keine Toleranzen in der Geometrie gibt. Zudem behalten sie ihre Farbtemperatur über die gesamte Nutzlebensdauer in etwa bei, weil aus dem dichten Keramikgefäß keine Füllstoffe entweichen können.In Modern metal halide high-pressure lamps will turn ceramic as translucent and heat resistant Material for the discharge vessel used. This can be some advantages over the previously used Achieve discharge vessel made of quartz glass. Thus, e.g. the temperature increases during operation and thus the spectrum the be better adapted to the daylight. Ceramic metal halide lamps have a low color dispersion, because it is in the production of Ceramic vessels practically no There are tolerances in the geometry. In addition, they retain their color temperature over the Total useful life at about, because of the dense ceramic vessel no fillers can escape.
Die
Verwendung keramischer Materialien (z.B. PCA) bewirkt aber neben
den genannten Vorteilen auch die Gefahr des Lecks durch Verspröden. Ursache
ist Rissbildung unter Zugbelastung. Dies ist besonders an erhöhten Ausfallraten
beim "Einlöten" der Elektroden in
die Stopfen, also die Qualität
der Einschmelzung, bemerkbar. Eine Lampe mit Lot ist beispielsweise
aus der WO 96/28839 bekannt. Dabei kommt es aufgrund der thermischen
Fehlanpassung zwischen Entladungsgefäß- und Elektrodenmaterial beim Einlöten des
Elektrodenpaares in die röhrenförmigen des
Entladungsgefäßes (siehe
Darstellung der Erfindungpresentation the invention
Es ist Aufgabe der vorliegenden Erfindung, einen einfachen Test bereitzustellen, der eine Aussage über die Qualität der Einschmelzung liefert.It It is an object of the present invention to provide a simple test of a statement about the quality the meltdown supplies.
Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen.These The object is achieved by the characterizing features of claim 1 solved. Particularly advantageous embodiments can be found in the dependent claims.
Um
die mechanische Beständigkeit
der Stopfen gegen Rissbildung unter Wirkung der Löteigenspannungen
zu bewerten, wird ein einfacher Bruchtest vorgeschlagen, der einen ähnlichen
Belastungszustand und die gleiche Rissmode (Axialrisse) in den Stopfen
hervorruft. Dabei werden die Stopfen quer zur Zylinderachse unter Druck
belastet (siehe
Insbesondere können mehrere Rollen verwendet werden, vorteilhaft auf jeder Seite zwei. Besonders bevorzugt sind zwei Rollen mit großem Abstand auf der einen Seite und zwei Rollen mit geringem Abstand auf der andern Seite. Dabei wird die Kraft bevorzugt einseitig durch die zwei Rollen mit geringem Abstand ausgeübt.Especially can multiple roles are used, beneficial on each side two. Particularly preferred are two rollers with a large distance on one side and two rollers at a small distance on the other side. there the force is preferably on one side by the two rollers with low Distance exercised.
Als Ergebnis des Tests kann mit Hilfe einer numerischen Belastungsanalyse aus der Druckkraft beim Versagen eine kritische Zugspannung für die Rissbildung in den Stopfen bestimmt werden. Die Stopfen sind insbesondere als Kapillaren, integral mit dem Entladungsgefäß oder separat ausgeführt. Diese kritische Größe kann als praxistaugliches Maß für die mechanische Stabilität der Stopfen benutzt werden und eignet sich somit zum Vergleich der Qualität unterschiedlicher Chargen oder Hersteller der keramischen Entladungsgefäße. Die besondere Ähnlichkeit bzgl. Belastungszustand und Versagensverhalten bei Test und Einlötvorgang erhöht die Relevanz der Testergebnisse. Andererseits erfordert der mechanische Test relativ wenig Aufwand und liefert somit eine günstige Methode zur Qualitätsbewertung.When Result of the test can be done using a numerical load analysis From the compressive force at failure, a critical tensile stress for cracking be determined in the stopper. The plugs are in particular as Capillaries, integral with the discharge vessel or executed separately. These critical size can as a practicable measure for the mechanical stability The plug can be used and is therefore suitable for comparing the Quality different Batches or manufacturers of ceramic discharge vessels. The special resemblance regarding load condition and failure behavior during test and soldering process elevated the relevance of the test results. On the other hand, the mechanical requires Test relatively little effort and thus provides a cheap method for quality evaluation.
Der erfinderische Schritt liegt in der Entwicklung eines praxistauglichen mechanischen Testverfahrens zur Beurteilung der mechanischen Stabilität von keramischen Stopfen unter den Belastungsbedingungen beim Einlötprozess der Elektroden. Besonders hervorzuheben ist dabei die gezielte Ausnutzung der Ähnlichkeiten von mechanischem Test und Einlötvorgang in Bezug auf Belastungszustand und Versagensverhalten. Das betrifft insbesondere die in beiden Fällen auftretenden Umfangs-Zugspannungen an der Innenseite der Stopfen und die Bildung von Axialrissen.Of the inventive step lies in the development of a practicable mechanical test method for assessing the mechanical stability of ceramic Plug under the loading conditions during the soldering process the electrodes. Particularly noteworthy here is the targeted utilization the similarities of mechanical test and soldering process in terms of load condition and failure behavior. That concerns especially in both cases occurring circumferential tensile stresses on the inside of the plug and the formation of axial cracks.
Figurencharacters
Im folgenden soll die Erfindung anhand mehrerer Ausführungsbeispiele näher erläutert werden. Es zeigen:in the The following is the invention based on several embodiments be explained in more detail. It demonstrate:
Beschreibung der Zeichnungendescription the drawings
In
In
In
In
Aus der Bruchkraft F folgt somit σ gemäß der Gleichung: From the breaking force F follows σ according to the equation:
Claims (8)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510003892 DE102005003892A1 (en) | 2005-01-27 | 2005-01-27 | Seal quality testing method for e.g. metal halide lamp, involves inserting mandrel between two supports, and applying pressure on mandrel by supports, where pressure is increased until arise of cracking |
PCT/DE2006/000044 WO2006079309A1 (en) | 2005-01-27 | 2006-01-13 | Method for testing a seal |
JP2007552496A JP4699481B2 (en) | 2005-01-27 | 2006-01-13 | Quality test method for sealing of ceramic discharge tube of lamp |
DE112006000083T DE112006000083A5 (en) | 2005-01-27 | 2006-01-13 | Method for testing a seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510003892 DE102005003892A1 (en) | 2005-01-27 | 2005-01-27 | Seal quality testing method for e.g. metal halide lamp, involves inserting mandrel between two supports, and applying pressure on mandrel by supports, where pressure is increased until arise of cracking |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005003892A1 true DE102005003892A1 (en) | 2006-08-03 |
Family
ID=36019622
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510003892 Withdrawn DE102005003892A1 (en) | 2005-01-27 | 2005-01-27 | Seal quality testing method for e.g. metal halide lamp, involves inserting mandrel between two supports, and applying pressure on mandrel by supports, where pressure is increased until arise of cracking |
DE112006000083T Withdrawn DE112006000083A5 (en) | 2005-01-27 | 2006-01-13 | Method for testing a seal |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE112006000083T Withdrawn DE112006000083A5 (en) | 2005-01-27 | 2006-01-13 | Method for testing a seal |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP4699481B2 (en) |
DE (2) | DE102005003892A1 (en) |
WO (1) | WO2006079309A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102854067B (en) * | 2012-10-10 | 2014-11-05 | 佛山市南海佛阳照明有限公司 | Multi-working-position compressive testing machine for bulbs |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2100432B (en) * | 1981-06-16 | 1985-08-21 | Metal Box Co Ltd | Identifying fractured containers |
JP3397145B2 (en) * | 1998-09-18 | 2003-04-14 | ウシオ電機株式会社 | Ceramic lamp |
US6626725B1 (en) * | 2000-05-08 | 2003-09-30 | Welch Allyn, Inc | Electrode treatment surface process for reduction of a seal cracks in quartz |
JP4416518B2 (en) * | 2003-01-24 | 2010-02-17 | パナソニック株式会社 | High pressure discharge lamp manufacturing method, glass tube for high pressure discharge lamp, and lamp member for high pressure discharge lamp |
US7198534B2 (en) * | 2003-01-24 | 2007-04-03 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing high-pressure discharge lamp, glass tube for high-pressure discharge lamp, and lamp element for high-pressure discharge lamp |
ATE367575T1 (en) * | 2003-05-07 | 2007-08-15 | Brabender Gmbh & Co Kg | METHOD AND DEVICE FOR MEASURING THE FORMABILITY OF MATERIALS SUCH AS CERAMIC RAW MATERIALS AND MASSES |
-
2005
- 2005-01-27 DE DE200510003892 patent/DE102005003892A1/en not_active Withdrawn
-
2006
- 2006-01-13 DE DE112006000083T patent/DE112006000083A5/en not_active Withdrawn
- 2006-01-13 WO PCT/DE2006/000044 patent/WO2006079309A1/en not_active Application Discontinuation
- 2006-01-13 JP JP2007552496A patent/JP4699481B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2006079309A1 (en) | 2006-08-03 |
JP2008528978A (en) | 2008-07-31 |
JP4699481B2 (en) | 2011-06-08 |
DE112006000083A5 (en) | 2007-08-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, , DE |
|
8139 | Disposal/non-payment of the annual fee |