DE744708C - Process for the production of a moisture-proof termination of capacitors - Google Patents

Process for the production of a moisture-proof termination of capacitors

Info

Publication number
DE744708C
DE744708C DEV37931D DEV0037931D DE744708C DE 744708 C DE744708 C DE 744708C DE V37931 D DEV37931 D DE V37931D DE V0037931 D DEV0037931 D DE V0037931D DE 744708 C DE744708 C DE 744708C
Authority
DE
Germany
Prior art keywords
housing
moisture
capacitors
production
compound
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
DEV37931D
Other languages
German (de)
Inventor
Ing Karl Wuck
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.)
Ver Telefon & Telegrafen Werke
Original Assignee
Ver Telefon & Telegrafen Werke
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 Ver Telefon & Telegrafen Werke filed Critical Ver Telefon & Telegrafen Werke
Priority to DEV37931D priority Critical patent/DE744708C/en
Application granted granted Critical
Publication of DE744708C publication Critical patent/DE744708C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/12—Protection against corrosion

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Description

Verfahren zur Herstellung eines feuchtigkeitssicheren Abschlusses von Kondensatoren Es hat sich gezeigt, .daß bei Kondensatoren, insbesondere gelöteten Kondensatoren, wie sie beispielsweise bei der Reichspost verwendet werden, die Feuchtigkeit im Laufe der Zeit zwischen der Gehäusewand (Becherwand) und der Deckverguß.masse in den Kondensator eindringt und den Isolationswert herabsetzt.Method of making a moisture-proof seal of capacitors It has been shown .that in capacitors, especially soldered Condensers, such as those used for example in the Reichspost, the moisture in the course of time between the housing wall (cup wall) and the deck casting compound penetrates the capacitor and reduces the insulation value.

Um .diesen Nachteil- zu beseitigen, wird gemäß der Erfindung die Innenwand des Gehäuses aufgerauht oder ihre Oberfläche in, ähnlicher Weise vergrößert; .dies kann durch mechanische Behandlung mit Sandstrahlen oder auf chemischem Wege (Ätzen, Ela@ieren, Phosphatieren, Atramentieren u. d-1.) erfolgen. Durch das Aufrauhen wird eine gute Bindung zwischen der Vergußmasse und der GehäiüSewan,d bewirkt, so daß Feuchtigkeit in das Gehäuse nicht eindringen kann. Der Becher wird vorzugsweise vor dem Verguß vorgewärmt, damit ,die beste Bindung an der Gehäusewand erzielt wird.In order to eliminate this disadvantage, according to the invention the inner wall the housing is roughened or its surface is enlarged in a similar manner; .this can be achieved by mechanical treatment with sandblasting or by chemical means (etching, Elating, phosphating, atramenting and d-1.) Take place. The roughening becomes a good bond between the potting compound and the GehäiüSewan, d causes so that Moisture cannot penetrate the housing. The mug is preferably preheated before potting so that the best bond to the housing wall is achieved.

Außerdem ist es angebracht, das Gehäuse vordem Verguß mit einer Lösung von V.ergußm.asse auszustreichen, damit ein besonders festes Anhaften der Vergußmasse erreicht wird. Die Lösung soll verhältnismäßig dünnflüssig sein, damit sie die Gehäusewand völlig benetzt. Man verwendet zum Ausstreichen vorteilhaft eine Lösung von derselben Ver-;ußmasse, mit der der Verguß vorgenommen wird. Man kann. aber zum Ausstreichen auch eine Lösung einer anderen Mase oder eine andere leicht flüssige Masse nehmen.In addition, it is advisable to coat the housing with a solution prior to casting of V. casting compound so that the casting compound adheres particularly firmly is achieved. The solution should be relatively thin so that it touches the housing wall completely wetted. A solution of the same is advantageously used for spreading out Sealing compound with which the sealing is carried out. One can. but to cross out also take a solution of another mass or another slightly liquid mass.

Versuche haben gezeigt, :daß die Haftfestigkeit -der Vergußmasse an aufgerauhten Eisenbechern größer war als die innere Materialfestigkeit von Vergußm@assen, z. B. von Gummipech.Tests have shown: that the adhesive strength of the potting compound roughened iron cups was greater than the internal material strength of casting m @ asses, z. B. from Gummipech.

Claims (1)

PATENTANSPRÜCHE: r. Verfahren zurr Herstellung eines feuchtigkeitssicheren Abschlusses von Kondensatoren, dadurch gekennzeichnet, daß die Innenwand .des Gehäuses aufgerauht wird, z. B. durch mechanische Behandlung mit Sandstrahlen oder auf ehe- mischeni Wege, uni ein gutes Haften der 'Vergußmasse an der Gehäuse@i-an.1 zu be- wi rken, a. Verfahren nach Anspruch i, daKlurch gekennzeichnet, ilaß das Gehäuse (der Becher) vor dein Einbringen der Verguß- masse vorgewärmt wird. 3. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die Geliäus@«vand vor
dem Einbringen der Vergußmasse mit einer leichtflüssigen Masse oder mit einür Lösung einer Vergußmasse ausgestrichen wird. Zur 2ihgrenzung des Aninelduiiä:gegen- stanles vom Stand der Technik sind im Er- teilungsverfahren keine llruckschriften in Betracht gezogen worden.
PATENT CLAIMS: r. Process for the production of a moisture-proof seal for capacitors, characterized in that the inner wall of the housing is roughened, e.g. B. by mechanical treatment with sandblasting or on mix in ways, uni a good adhesion of the '' Potting compound to be applied to the housing@i-an.1 works, a. Method according to claim i, daKlurch marked, that the housing (the Cup) before you introduce the potting mass is preheated. 3. The method according to claim i, characterized marked that the Geliäus @ «vand before
the introduction of the potting compound is spread with a lightly liquid compound or with a solution of a potting compound. To delimit the aninelduiiä: opposite state-of-the-art stanles are method of division no llprints in Been considered.
DEV37931D 1941-08-02 1941-08-02 Process for the production of a moisture-proof termination of capacitors Expired DE744708C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV37931D DE744708C (en) 1941-08-02 1941-08-02 Process for the production of a moisture-proof termination of capacitors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV37931D DE744708C (en) 1941-08-02 1941-08-02 Process for the production of a moisture-proof termination of capacitors

Publications (1)

Publication Number Publication Date
DE744708C true DE744708C (en) 1944-11-16

Family

ID=7590426

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV37931D Expired DE744708C (en) 1941-08-02 1941-08-02 Process for the production of a moisture-proof termination of capacitors

Country Status (1)

Country Link
DE (1) DE744708C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169644B (en) * 1958-10-10 1964-05-06 Siemens Ag Process for the production of an end-face potting with built-in electrical components

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1169644B (en) * 1958-10-10 1964-05-06 Siemens Ag Process for the production of an end-face potting with built-in electrical components

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