DE492339C - Process for the production of heating resistors - Google Patents

Process for the production of heating resistors

Info

Publication number
DE492339C
DE492339C DEE37220D DEE0037220D DE492339C DE 492339 C DE492339 C DE 492339C DE E37220 D DEE37220 D DE E37220D DE E0037220 D DEE0037220 D DE E0037220D DE 492339 C DE492339 C DE 492339C
Authority
DE
Germany
Prior art keywords
heating resistors
production
container
heating
metal
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
DEE37220D
Other languages
German (de)
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.)
Elektroterm A G
Original Assignee
Elektroterm A G
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 Elektroterm A G filed Critical Elektroterm A G
Priority to DEE37220D priority Critical patent/DE492339C/en
Application granted granted Critical
Publication of DE492339C publication Critical patent/DE492339C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/14—Conductive material dispersed in non-conductive inorganic material
    • H01B1/18—Conductive material dispersed in non-conductive inorganic material the conductive material comprising carbon-silicon compounds, carbon or silicon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Apparatuses And Processes For Manufacturing Resistors (AREA)

Description

Verfahren zur Herstellung von Heizwiderständen Zusatz zum Patent 481796 -Das Hauptpatent betrifft ein Verfahren zur-Herstellung von elektrischen Heizwiderständen für hauswirtschaftliche und industrielle Zwecke aller Art, bei dem ein Gemisch von Kohle und Metalloxyden in Formkörper gepreßt und dann durch Einschalten in einen Stromkreis oder durch Erhitzen in einem Ofen gebrannt wird, bis sich auf dem Formkörper eine isolierende Schicht aus Metallcarbonaten bildet, die dann durch Umschließen mit einer Metallschicht vor Zersetzung geschützt wird.Process for the production of heating resistors Addition to patent 481796 -The main patent relates to a method for the production of electrical heating resistors for domestic and industrial purposes of all kinds, in which a mixture of Coal and metal oxides pressed into molded bodies and then turned on into one Circuit or by heating in an oven until it is on the molded body an insulating layer of metal carbonates forms, which is then enclosed by enclosing is protected from decomposition with a metal layer.

Es hat sich nun gezeigt, daß die Bildung der Carbonatschicht dadurch wesentlich gefördert werden kann, daß man den mit einer Carbonatschicht versehenen Heizkörper in einen luftdicht abgeschlossenen Metallbehälter derart einbaut, daß ein freier Raum zwischen dem Widerstandskörper und dem ihn umschließenden Behälter bestehen bleibt.It has now been shown that the formation of the carbonate layer thereby can be significantly promoted that one provided with a carbonate layer Install the radiator in an airtight metal container in such a way that a free space between the resistance body and the container surrounding it remains.

Setzt man einen derart in einen Metallbehälter eingebauten Heizwiderstand unter Strom, so bildet sich nach Inbetriebsetzung in dem Behälterraum Metalldampf, der jeweilig dem Material, aus dem der Behälter besteht, entspricht und der sich gemäß dem bekannten Sherardisierungsvorgang auf der Carbonatschicht des Widerstandskörpers niederschlägt und Veranlassung zur Bildung von Metallcarbonaten gibt, die die bereits bestehende isolierende Schicht des Heizwiderstandes verfestigen und deren mechanische Eigenschaften wesentlich verbessern.If you put a heating resistor built into a metal container in this way when energized, metal vapor is formed in the container space after it has been put into operation, which in each case corresponds to the material from which the container is made and which itself according to the known sherardization process on the carbonate layer of the resistor body precipitates and gives rise to the formation of metal carbonates, which are already solidify existing insulating layer of the heating resistor and its mechanical Significantly improve properties.

Die so behandelten Heizwiderstände mit verfestigter Carbonatschicht werden in einen Schutzbehälter luftdicht eingeschlossen. Es kann aber auch der so behandelte Heizwiderstand gleich in der ihn umschließenden Metallhülle verbleiben, die ihrerseits die Metallcarbonate vor Zerstörung schützt. Heizkörper der zuletzt erwähnten Art eignen sich besonders zur Erwärmung- von Gas oder flüssigen Stoffen.The heating resistors treated in this way with a solidified carbonate layer are hermetically sealed in a protective container. But it can also do that treated heating resistor remain in the surrounding metal shell, which in turn protects the metal carbonates from destruction. Radiator the last mentioned type are particularly suitable for heating gas or liquid substances.

Claims (1)

PATENTANSPRÜCHE: i. Abänderung des Verfahrens zur Herstellung von elektrischen Heizwiderständen nach Patent 481 796, dadurch gekennzeichnet, daß die Carbonatschicht des Formkörpers durch Erhitzen desselben in einem Metallbehälter, in den der Formkörper unter Freilassung eines Luftzwischenraumes in zentraler Lage luftdicht eingebaut wird, verfestigt wird, wonach der so behandelte Körper in einen Schutzbehälter luftdicht eingeschlossen wird. z. Nach dem Verfahren gemäß Anspruch i hergestellter Heizkörper, dadurch gekennzeichnet, daß der bei der Behandlung benutzte Metallbehälter selbst als dauernde Schutzhülle dient.PATENT CLAIMS: i. Modification of the manufacturing process for electrical heating resistors according to patent 481 796, characterized in that the Carbonate layer of the shaped body by heating it in a metal container, in which the molded body leaving an air gap in a central position Is installed airtight, is solidified, after which the body thus treated into a Protective container is enclosed airtight. z. According to the method according to claim i manufactured radiator, characterized in that the one used in the treatment Metal container itself serves as a permanent protective cover.
DEE37220D 1928-04-04 1928-04-04 Process for the production of heating resistors Expired DE492339C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE37220D DE492339C (en) 1928-04-04 1928-04-04 Process for the production of heating resistors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE37220D DE492339C (en) 1928-04-04 1928-04-04 Process for the production of heating resistors

Publications (1)

Publication Number Publication Date
DE492339C true DE492339C (en) 1930-08-07

Family

ID=7078040

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE37220D Expired DE492339C (en) 1928-04-04 1928-04-04 Process for the production of heating resistors

Country Status (1)

Country Link
DE (1) DE492339C (en)

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