DE434303C - Head with steadily distributed, increased inductance and process for its manufacture - Google Patents

Head with steadily distributed, increased inductance and process for its manufacture

Info

Publication number
DE434303C
DE434303C DEA43421D DEA0043421D DE434303C DE 434303 C DE434303 C DE 434303C DE A43421 D DEA43421 D DE A43421D DE A0043421 D DEA0043421 D DE A0043421D DE 434303 C DE434303 C DE 434303C
Authority
DE
Germany
Prior art keywords
conductor
manufacture
head
increased inductance
steadily
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
DEA43421D
Other languages
German (de)
Inventor
Dr Walther Ehlers
Dr Hans Jordan
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.)
AEG AG
Original Assignee
AEG 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 AEG AG filed Critical AEG AG
Priority to DEA43421D priority Critical patent/DE434303C/en
Application granted granted Critical
Publication of DE434303C publication Critical patent/DE434303C/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
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/12—Arrangements for exhibiting specific transmission characteristics
    • H01B11/14—Continuously inductively loaded cables, e.g. Krarup cables

Landscapes

  • Coils Or Transformers For Communication (AREA)

Description

Leiter mit stetig verteilter, erhöhter Induktivität und Verfahren zu seiner Herstellung. Die Kupferadern der Fernmeldeleitungen werden zur Erhöhung der Induktivität der Sprechkreise vielfach mit Eisen in Draht-, Band- oder Pulverform umgeben und darauf einem Glühprozeß unterworfen. Zur Erzielung der günstigsten magnetischen Werte ist -dabei die Anwendung verhältnismäßig hoher Glühtemperaturen erforderlich, die die mechanische und elektrische Güte des Kupferleiters gefährden.Conductor with steadily distributed, increased inductance and process for its manufacture. The copper wires of the telecommunication lines are increasing the inductance of the speech circuits often with iron in wire, tape or powder form surrounded and then subjected to an annealing process. To achieve the cheapest magnetic Values - the use of relatively high annealing temperatures is necessary, which endanger the mechanical and electrical quality of the copper conductor.

Die Erfindung besteht in der Verwendung eines bei den in Frage kommenden Glühtemperaturen beständigen Wärmeisolators, der die Kupferader vor übermäßiger Erwärmung schützt. Für sehr kurze Glühzeiten, wie sie für derartige Zwecke praktisch allein Anwendung finden, genügen sehr dünne Schichten von einem in der Glühtemperatur beständigen Isolationsmaterial, beispielsweise aus keramischen Stoffen, Glas u. dgl., die etwa in Pulverform auf den Kupferleiter gebracht werden können vor deren Umgeben mit Eisen. Das Anhaften des Pulvers am Leiter kann unterstützt werden durch Anfetten des Drahtes, z. B. durch 01. The invention consists in the use of a heat insulator which is stable at the annealing temperatures in question and which protects the copper wire from excessive heating. For very short annealing times, as they are used practically alone for such purposes, very thin layers of an insulating material resistant to the annealing temperature, for example made of ceramic materials, glass, etc., which can be applied to the copper conductor in powder form, are sufficient Surrounded with iron. The adhesion of the powder to the conductor can be assisted by greasing the wire, e.g. B. through 01.

Claims (3)

PATENTANSPRÜCHE: i. Leiter mit stetig verteilter, erhöhter Induktiv ität, dadurch gekennzeichnet, daß zwischen Leiter und magnetischem Belastungsmaterial eine Zwischenlage aus einem bei Glühtemperaturen beständigen Stoff aufgebracht ist. PATENT CLAIMS: i. Conductor with steadily distributed, increased inductive ität, characterized in that between the conductor and the magnetic loading material an intermediate layer made of a substance resistant to annealing temperatures is applied. 2. Leiter nach Anspruch i, dadurch gekennzeichnet, daß als Zwischenmaterial keramische Stoffe, Gläser oder Stoffe mit ähnlichen mechanischen, thermischen und elektrischen Eigenschaften dienen. 2. A conductor according to claim i, characterized in that ceramic is used as the intermediate material Fabrics, glasses or fabrics with similar mechanical, thermal and electrical Properties serve. 3. Verfahren zur Herstellung von Leitern nach Anspruch i oder 2, dadurch gekennzeichnet, daß das Zwischenmaterial in Pulverform auf die Kupferader gebracht wird vor deren Umgeben mit Eisen.3. A method for producing ladders according to claim i or 2, characterized in that the intermediate material is applied in powder form to the copper wire is brought before surrounding them with iron.
DEA43421D 1924-11-06 1924-11-06 Head with steadily distributed, increased inductance and process for its manufacture Expired DE434303C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA43421D DE434303C (en) 1924-11-06 1924-11-06 Head with steadily distributed, increased inductance and process for its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA43421D DE434303C (en) 1924-11-06 1924-11-06 Head with steadily distributed, increased inductance and process for its manufacture

Publications (1)

Publication Number Publication Date
DE434303C true DE434303C (en) 1926-09-22

Family

ID=6933639

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA43421D Expired DE434303C (en) 1924-11-06 1924-11-06 Head with steadily distributed, increased inductance and process for its manufacture

Country Status (1)

Country Link
DE (1) DE434303C (en)

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