DE823766C - Process for the vacuum-tight fusion of two parts - Google Patents

Process for the vacuum-tight fusion of two parts

Info

Publication number
DE823766C
DE823766C DE1949P0041433 DEP0041433D DE823766C DE 823766 C DE823766 C DE 823766C DE 1949P0041433 DE1949P0041433 DE 1949P0041433 DE P0041433 D DEP0041433 D DE P0041433D DE 823766 C DE823766 C DE 823766C
Authority
DE
Germany
Prior art keywords
parts
vacuum
adhesive
glass solder
fusion
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
DE1949P0041433
Other languages
German (de)
Inventor
Dipl-Ing Heinz Beckenbach
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.)
Telefunken AG
Original Assignee
Telefunken AG
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 Telefunken AG filed Critical Telefunken AG
Priority to DE1949P0041433 priority Critical patent/DE823766C/en
Application granted granted Critical
Publication of DE823766C publication Critical patent/DE823766C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/06—Joining glass to glass by processes other than fusing
    • C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Description

Verfahren zum vakuumdichten Verschmelzen zweier Teile In @-ielen 7.@@eigen der Technik, insbesondere bei der Herstellung von Glühlampen und von Elektronenröhren, besteht die Aufgabe, zwei Teile vakuumdicht miteinander zu verschmelzen. Es ist bereits bekannt, die Verbindung der beiden Teile mittels eines Glaslotes vorzunehmen, wobei das Glaslot eine Schmelztemperatur besitzen muß, die niedriger liegt als die der beiden miteinander zu verbindenden Teile. Die beiden Teile müssen im allgemeinen in einer vorher zu fixierenden gegenseitigen Lage miteinander verbunden werden; beispielsweise bei der Fertigung von Elektronenröhren ist es wichtig, daß die Verbindung des Röhrenfußes, der ja das Röhrensystem enthält, mit dem Röhrenkolben in eindeutiger Weise erfolgt.Process for the vacuum-tight fusion of two parts In @ -ielen 7. @@ own technology, especially in the manufacture of incandescent lamps and electron tubes, The task is to fuse two parts together in a vacuum-tight manner. It is already known to make the connection of the two parts by means of a glass solder, the glass solder must have a melting temperature which is lower than that of the two parts to be connected. The two parts must in general are connected to one another in a mutual position to be fixed beforehand; for example in the manufacture of electron tubes, it is important that the connection of the tube foot, which contains the tube system, with the tube piston in a clear manner Way done.

Es wird zur Lösung dieser Aufgabe ein Vorschlag gemacht, der gemäß der Erfindung darin besteht, daß die miteinander zu verschmelzenden Teile zur gegenseitigen Fixierung mit einem mit Klebstoff vermischten Glaslot bestrichen und danach durch Niederschmelzen des Lotes vereinigt werden. Dabei ist es notwendig, daß der Klebstoff eine solche Beschaffenheit besitzt, daß durch ihn der Schmelzvorgang nicht ungünstig beeinflußt wird. Als besonders zweckmäßig wird die Verbindung eines Klebstoffes empfohlen, der unter dem Einfluß der Schmelzwärme nahezu vollständig zerfällt. Betrachtet man das oben angegebene Beispiel, nämlich die Verbindung des Röhrenkolbens mit dem Röhrenfuß einer Elektronenröhre, so ergeben sich dadurch erhebliche Vorteile. Mit Hilfe des dem Glaslot beigefügten Klebstoffs, der beispielsweise aus einer Kollodiumlösung bestehen kann, wird der Röhrenfuß mit dem Röhrenkolben bereits nach der Montage des Systems fest verbunden. Da der eigentliche Schmelzvorgang erst nach der auf einer besonderen Vorrichtung, z. B. auf dem Pumpautomaten erfolgten Erwärmung vor sich geht, wird vermieden, daß in das Röhrensystem auf dem Wege von dem Montageplatz bis zu der Vorrichtung, in der der Schmelzvorgang vorgenommen wird, Staub, Fussel oder ähnliche schädliche Teile in den Röhrenkolben gelangen. Der Ausschuß bei der Röhrenproduktion wird also erheblich herabgesetzt.It is made to solve this problem, a proposal according to of the invention is that the parts to be fused together to mutual The fixation is smeared with a glass solder mixed with adhesive and then through Melting down the solder are combined. It is necessary that the adhesive has such a nature that the melting process is not unfavorable through it being affected. The connection of an adhesive is particularly useful recommended, which almost completely disintegrates under the influence of the heat of fusion. Considered the example given above, namely the connection of the tubular piston with the The tube base of an electron tube results in considerable advantages. With With the help of the adhesive attached to the glass solder, for example from a collodion solution can exist, the tubular foot with the tubular piston is already after assembly of System firmly connected. Since the actual melting process only occurs after the on one special device, e.g. B. on the automatic pumping device was heated in front of you goes, it is avoided that in the pipe system on the way from the assembly area up to the device in which the melting process is carried out, dust, lint or similar harmful parts get into the bulb. The committee at the Tube production is therefore significantly reduced.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zum vakuumdichten Verschmelzen zweier Teile, insbesondere des Fußes mit dem Kolben einer Elektronenröhre, mittels eines Glaslotes, dadurch gekennzeichnet, daß die miteinander zu verschmelzenden Teile zur gegenseitigen Fixierung mit einem Glaslot bestrichen werden, das mit einem den Lötvorgang nicht ungünstig beeinflussenden Klebstoff vermischt ist, und daß diese Teile anschließend durch Niederschmelzen des Lotes miteinander vereinigt werden. PATENT CLAIMS: i. A method for the vacuum-tight fusing of two parts, in particular the foot with the piston of an electron tube, by means of a glass solder, characterized in that the parts to be fused together are coated with a glass solder for mutual fixation, which is mixed with an adhesive which does not adversely affect the soldering process, and that these parts are then united with one another by melting down the solder. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß dem Glaslot ein Klebstoff solcher Beschaffenheit beigemischt wird, daß unter dem Einfluß der Schmelzwärme ein annähernd vollständiger, den Schmelzvorgang nicht beeinträchtigender Zerfall des Klebstoffes eintritt.2. The method according to claim i, characterized in that the glass solder is an adhesive is admixed in such a way that under the influence of the heat of fusion an almost complete disintegration that does not impair the melting process of the adhesive occurs.
DE1949P0041433 1949-05-03 1949-05-03 Process for the vacuum-tight fusion of two parts Expired DE823766C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1949P0041433 DE823766C (en) 1949-05-03 1949-05-03 Process for the vacuum-tight fusion of two parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1949P0041433 DE823766C (en) 1949-05-03 1949-05-03 Process for the vacuum-tight fusion of two parts

Publications (1)

Publication Number Publication Date
DE823766C true DE823766C (en) 1951-12-06

Family

ID=579073

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1949P0041433 Expired DE823766C (en) 1949-05-03 1949-05-03 Process for the vacuum-tight fusion of two parts

Country Status (1)

Country Link
DE (1) DE823766C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151037B (en) * 1952-07-09 1963-07-04 Siemens Ag Process for the adaptation of ready-made metal-glass-metal fusions in electrical devices to higher voltages
DE3720061A1 (en) * 1987-06-16 1988-12-29 Philips Patentverwaltung Electrical bushing for high-pressure containers with internal pressures of more than 1000 bar

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151037B (en) * 1952-07-09 1963-07-04 Siemens Ag Process for the adaptation of ready-made metal-glass-metal fusions in electrical devices to higher voltages
DE3720061A1 (en) * 1987-06-16 1988-12-29 Philips Patentverwaltung Electrical bushing for high-pressure containers with internal pressures of more than 1000 bar

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