DE945531C - Process for the manufacture of dry rectifiers - Google Patents

Process for the manufacture of dry rectifiers

Info

Publication number
DE945531C
DE945531C DES7789D DES0007789D DE945531C DE 945531 C DE945531 C DE 945531C DE S7789 D DES7789 D DE S7789D DE S0007789 D DES0007789 D DE S0007789D DE 945531 C DE945531 C DE 945531C
Authority
DE
Germany
Prior art keywords
rectifier
manufacture
rectifiers
dry rectifiers
moisture
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
DES7789D
Other languages
German (de)
Inventor
Georg Hoppe
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DES7789D priority Critical patent/DE945531C/en
Application granted granted Critical
Publication of DE945531C publication Critical patent/DE945531C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
    • H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
    • H01L21/14—Treatment of the complete device, e.g. by electroforming to form a barrier
    • H01L21/145—Ageing

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Gerontology & Geriatric Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Current Collectors (AREA)

Description

Verfahren zur Herstellung von Trockengleichrichtern Betriebserfahrungen mit Trockengleichrichtern haben gezeigt, daß gewisse Verschlechterungen der gleichrichtenden Eigenschaften darauf zurückzuführen sind, daß Feuchtigkeit mit den Gleichrichterelementen in Berührung kommt und bis an die gleichrichtende Schicht vordringt. Um das zu verhindern, ist vorgeschlagen worden, die Gleichrichterscheiben mit einer Schutzschicht aus Feuchtigkeit abweisendem Stoff, beispielsweise öl oder Fett, zu überziehen.Process for the manufacture of dry rectifiers Operating experience with dry rectifiers have shown that certain deteriorations of the rectifying Properties are due to the fact that moisture with the rectifier elements comes into contact and penetrates to the rectifying layer. To prevent that, It has been proposed to make the rectifier disks with a protective layer Moisture-repellent material, for example oil or grease, to cover.

Gegenstand der Erfindung ist eine Verbesserung und weitere Ausgestaltung dieses Verfahrens, die darin besteht, daß die Gleichrichterscheiben soweit erwärmt werden, daß der als Feuchtigkeitsschutz dienende Stoff flüssig wird. Durch die Erfindung wird dafür gesorgt, daß das Fett, welches auf die Gleichrichterscheiben aufgebracht wird, in die Poren der Gegenelektrode bzw. eigentlichen Gleichrichterschicht, beispielsweise der Selenschicht eines Selengleichrichters, eindringen kann und so de Gleichrichterplatte in allen Teilen wirksam gegen Schädigungen schützt, die durch Eindringen von Feuchtigkeit entstehen können. Das als Schutzmittel gegen Feuchtigkeit dienende öl oder Fett kann mit einem Pinsel auf die Gleichrichterscheiben aufgetragen werden, oder man taucht die Gleichrichterscheiben in einen Bottich, in dem sich öl oder Fett befindet. Zweckmäßig wird das Schutzmittel vor dem elektrischen Formieren der Gleichrichterscheiben aufgebracht. Das hat den Vorteil, daß die sich beim Formieren bildende Wärme zur Verflüssigung des Fettes oder Öls herangezogen werden kann.The invention relates to an improvement and further development this process, which consists in heating the rectifier disks as far as possible that the substance serving as moisture protection becomes liquid. Through the invention ensures that the grease that is applied to the rectifier disks is, in the pores of the counter electrode or actual rectifier layer, for example the selenium layer of a selenium rectifier, can penetrate and so de rectifier plate Effective protection in all parts against damage caused by the ingress of moisture can arise. The oil or fat used as a protective agent against moisture can be applied to the rectifier disks with a brush, or one immerses the rectifier disks in a vat in which there is oil or fat. The protective means is expedient before the rectifier disks are electrically formed upset. That has the advantage, that the one that forms during formation Heat can be used to liquefy the fat or oil.

Die Erfindung ist zwar für Selengleichrichter von besonderer Bedeutung, sie kann aber auch für andere Arten von Trockengleichrichtern, beispielsweise für Kupferoxydulgleichrichter, angewendet werden.The invention is of particular importance for selenium rectifiers, But it can also be used for other types of dry rectifiers, for example for Copper oxide rectifiers, can be used.

Claims (1)

PATENTANSPRÜCHE: I. Verfahren zur Herstellung von Trockengleichrichtern, bei dem auf die Scheiben eine Schutzschicht aus einem Feuchtigkeit abweisen. den Stoff, beispielsweise Öl oder Fett, aufgebracht wird, dadurch gekennzeichnet, daß die Scheiben so weit erwärmt werden, daß das Schutzmittel flüssig wird. z. Verfahren nach Anspruch I, dadurch gekennzeichnet, daß das Schutzmittel vor dein elektrischen Formieren aufgebracht wird. Angezogene Druckschriften: Deutsche Patentschriften Nr. 552 249, 707 542, 710 282, 717 349, 748 179-PATENT CLAIMS: I. Process for the production of dry rectifiers in which a protective layer of a moisture repel on the panes. the substance, for example oil or fat, is applied, characterized in that the panes are heated to such an extent that the protective agent becomes liquid. z. Method according to Claim I, characterized in that the protective agent is applied before the electrical forming. Attached publications: German patent specifications No. 552 249, 707 542, 71 0 2 8 2 , 7 1 7 349, 748 179-
DES7789D 1944-12-22 1944-12-23 Process for the manufacture of dry rectifiers Expired DE945531C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES7789D DE945531C (en) 1944-12-22 1944-12-23 Process for the manufacture of dry rectifiers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES0007789 1944-12-22
DES7789D DE945531C (en) 1944-12-22 1944-12-23 Process for the manufacture of dry rectifiers

Publications (1)

Publication Number Publication Date
DE945531C true DE945531C (en) 1956-07-12

Family

ID=25994788

Family Applications (1)

Application Number Title Priority Date Filing Date
DES7789D Expired DE945531C (en) 1944-12-22 1944-12-23 Process for the manufacture of dry rectifiers

Country Status (1)

Country Link
DE (1) DE945531C (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE552249C (en) * 1927-04-02 1932-06-10 Siemens Schuckertwerke Akt Ges Process for improving the conductivity of rectifier electrodes, which consist of alternating layers of a metal and a solid metal compound produced directly on this
DE707542C (en) * 1937-12-10 1941-06-25 Versuchsanstalt Fuer Luftfahrt Crystal detector for very short electrical waves
DE710282C (en) * 1938-07-06 1941-09-09 Siemens Schuckertwerke Akt Ges Procedure for the protection of dry rectifiers, which are not continuously operated, and which are directly cooled by an air stream, against moisture
DE717349C (en) * 1937-03-19 1942-02-12 Ludwig Baugatz Kondensatorenfa Process for the production of electrical capacitors, in particular wound capacitors, the capacitor body of which is built into the capacitor vessel and sealed moisture-tight by means of a potting compound
DE748179C (en) * 1938-11-20 1944-10-27 Richard Jahre Spezialfabrik Fu Process for the impregnation of capacitors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE552249C (en) * 1927-04-02 1932-06-10 Siemens Schuckertwerke Akt Ges Process for improving the conductivity of rectifier electrodes, which consist of alternating layers of a metal and a solid metal compound produced directly on this
DE717349C (en) * 1937-03-19 1942-02-12 Ludwig Baugatz Kondensatorenfa Process for the production of electrical capacitors, in particular wound capacitors, the capacitor body of which is built into the capacitor vessel and sealed moisture-tight by means of a potting compound
DE707542C (en) * 1937-12-10 1941-06-25 Versuchsanstalt Fuer Luftfahrt Crystal detector for very short electrical waves
DE710282C (en) * 1938-07-06 1941-09-09 Siemens Schuckertwerke Akt Ges Procedure for the protection of dry rectifiers, which are not continuously operated, and which are directly cooled by an air stream, against moisture
DE748179C (en) * 1938-11-20 1944-10-27 Richard Jahre Spezialfabrik Fu Process for the impregnation of capacitors

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