EP0693767B1 - Einrichtung zum vakuumdichten Verschliessen von dauerhaft vakuumdichten Behältern - Google Patents

Einrichtung zum vakuumdichten Verschliessen von dauerhaft vakuumdichten Behältern Download PDF

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Publication number
EP0693767B1
EP0693767B1 EP95109961A EP95109961A EP0693767B1 EP 0693767 B1 EP0693767 B1 EP 0693767B1 EP 95109961 A EP95109961 A EP 95109961A EP 95109961 A EP95109961 A EP 95109961A EP 0693767 B1 EP0693767 B1 EP 0693767B1
Authority
EP
European Patent Office
Prior art keywords
vacuum
tight
containers
permanently
heating coil
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
EP95109961A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0693767A1 (de
Inventor
Armin Blecker
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.)
Pfeiffer Vacuum GmbH
Original Assignee
Pfeiffer Vacuum 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 Pfeiffer Vacuum GmbH filed Critical Pfeiffer Vacuum GmbH
Publication of EP0693767A1 publication Critical patent/EP0693767A1/de
Application granted granted Critical
Publication of EP0693767B1 publication Critical patent/EP0693767B1/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
    • 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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • 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
    • H01J9/40—Closing vessels

Definitions

  • the invention relates to a device for vacuum-tight sealing permanently vacuum-thick containers e.g. Electron tubes according to the preamble of the claim.
  • Evacuation of permanently vacuum-tight containers such as Electron tubes are made by special Pump systems suitable for the respective production process.
  • Tubes with a glass coating are usually through glass tubes connected to the pump systems.
  • These glass tubes in the Technical term pump stems are called after the evacuation separated from the pump system by melting.
  • the part of the pump stem facing the tube remains Part of the tube base on which the internal components of the Tubes are mounted.
  • melting a device used as a melting unit referred to as.
  • This melting unit consists of several parts, which ever since assembled in the axial direction according to Fig. 1 are: (S. Urban, D .: Modern picture tube production with turbo-molecular pumps, Vacuum in practice (1991) No. 3 5.196-198)
  • An electron tube 1 is evacuated by a pump system 2.
  • the connection between the electron tube and the pump system is made via a tubular component 4, the pump stem.
  • the tube base 16 and the pump system 2 must be arranged close together.
  • the melting unit 5 This consists of a housing 6 with cover 8, various insulation elements 9, 10, 11 and the heating coil 6. To change the heating coil, the melting unit be dismantled. This is done axially Direction after loosening the screws 12.
  • the heating coil is a thermally highly stressed part and therefore subjected to great wear. This makes it a common one This component must be changed. For a series production the replacement of these components and other maintenance work. an essential factor in effort and time. A quick one and the rational course of this manufacturing process should be aimed for. As shown above, this is with the conventional construction only solved unsatisfactorily.
  • the invention has set itself the task of the melting unit to be constructed in such a way that in the context of series production Replacing the heating coil and other maintenance work can be done without great expenditure of time and money.
  • the claim 2 represents a further embodiment of the invention.
  • the invention is explained using the example of electron tubes, is not, however, due to the vacuum tight sealing of electron tubes limited, but refers to all containers, which are permanently sealed in a vacuum-tight manner by melting become.
  • the melting unit constructed so that it can no longer be dismantled in the axial direction must become. It consists of the housing 13, which the Heating coil 6 and the insulation elements in the axial direction includes. A component 14 of the housing 13 is laterally removable. With this component, the heating coil 6 and the insulation elements also removable without screwing have to be solved. By a locking element 15, for. Legs Spring, which released before removing the component 14 the entire melting unit is held together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Resistance Heating (AREA)
EP95109961A 1994-07-18 1995-06-27 Einrichtung zum vakuumdichten Verschliessen von dauerhaft vakuumdichten Behältern Expired - Lifetime EP0693767B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4425160A DE4425160A1 (de) 1994-07-18 1994-07-18 Einrichtung zum vakuumdichten Verschließen von Elektronenröhren
DE4425160 1994-07-18

Publications (2)

Publication Number Publication Date
EP0693767A1 EP0693767A1 (de) 1996-01-24
EP0693767B1 true EP0693767B1 (de) 1999-08-25

Family

ID=6523334

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95109961A Expired - Lifetime EP0693767B1 (de) 1994-07-18 1995-06-27 Einrichtung zum vakuumdichten Verschliessen von dauerhaft vakuumdichten Behältern

Country Status (7)

Country Link
US (1) US5567193A (zh)
EP (1) EP0693767B1 (zh)
JP (1) JPH0845430A (zh)
KR (1) KR960005674A (zh)
CN (1) CN1118513A (zh)
DE (2) DE4425160A1 (zh)
TW (1) TW265455B (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29606349U1 (de) * 1996-04-01 1997-07-31 Porsche, Manfred, 12557 Berlin Heizer zum Abschmelzen von evakuierten Bildröhren
CN100419940C (zh) * 2002-02-28 2008-09-17 有限会社大和电子工业 玻璃管真空封闭用开闭式圆筒型加热器
CN102324357A (zh) * 2011-09-21 2012-01-18 广州威理照明科技有限公司 一种陶瓷金卤灯管的封接设备及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278500A (en) * 1941-01-31 1942-04-07 Rca Corp Vacuum tube seal-off
GB854305A (en) * 1957-11-18 1960-11-16 Philco Corp Improvements in and relating to the manufacture of electronic tubes and the like
US3100251A (en) * 1960-10-24 1963-08-06 Gen Electric Tip-off oven
US3807006A (en) * 1972-10-31 1974-04-30 Rca Corp Method of installing a mount assembly in a multibeam cathode-ray tube
GB1554067A (en) * 1977-01-24 1979-10-17 Badalex Ltd Manufacture of electric light sources
US4451725A (en) * 1982-07-22 1984-05-29 Rca Corporation Electrical heating unit for sealing vacuum electron tubes
JPH06295677A (ja) * 1993-04-07 1994-10-21 Sony Corp 陰極線管の製造装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
URBAN, D.: "Moderne Bildröhrenfertigung mit Turbo-Molekularpumpen", VAKUUM IN DER PRAXIS, no. 3, 1991, WEINHEIM DE, pages 196 - 198 *

Also Published As

Publication number Publication date
CN1118513A (zh) 1996-03-13
US5567193A (en) 1996-10-22
JPH0845430A (ja) 1996-02-16
DE4425160A1 (de) 1996-01-25
DE59506675D1 (de) 1999-09-30
KR960005674A (ko) 1996-02-23
EP0693767A1 (de) 1996-01-24
TW265455B (en) 1995-12-11

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