DE503835C - The transformer of patent 502349, wherein at least one of the coils is composed of wire composed of a silver alloy containing copper - Google Patents

The transformer of patent 502349, wherein at least one of the coils is composed of wire composed of a silver alloy containing copper

Info

Publication number
DE503835C
DE503835C DEN27768D DEN0027768D DE503835C DE 503835 C DE503835 C DE 503835C DE N27768 D DEN27768 D DE N27768D DE N0027768 D DEN0027768 D DE N0027768D DE 503835 C DE503835 C DE 503835C
Authority
DE
Germany
Prior art keywords
wire
coils
transformer
alloy
containing copper
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
DEN27768D
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE503835C publication Critical patent/DE503835C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F19/00—Fixed transformers or mutual inductances of the signal type
    • H01F19/02—Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Conductive Materials (AREA)

Description

Transformator nach Patent 502349, bei dem wenigstens eine der Spulen aus Draht zusammengesetzt ist, der aus einer Kupfer enthaltenden Silberlegierung besteht Die Erfindung betrifft einen Transformator nach Patent 502 349. Bei diesem Transformator besteht der Draht wenigstens einer der Spulen aus einer Legierung, die wenigstens 5o % Silber enthält und im übrigen aus Kupfer besteht. Eine solche Legierung hat den Vorteil, daß ihre Zugfestigkeit größer ist und daß sie nicht so schnell an der Luft oxydiert.Transformer according to Patent 502 349, in which one of the coils of wire is composed of at least, the containing of a copper silver alloy The present invention relates to a transformer according to Patent 502 349. In this transformer the wire consists of at least one of the coils of an alloy containing at least 5o % Silver and the rest of copper. Such an alloy has the advantage that its tensile strength is greater and that it does not oxidize as quickly in air.

Die Legierung nach der Erfindung enthält höchstens 6 % Kupfer. Infolge des hohen Silbergehalts sind keine kupferreichen Mischkristalle mehr in der Legierung vorhanden, so daß praktisch keine Oxydation auftritt. Da die Legierung außerdem einen sehr kleinen Ohmschen Widerstand hat, eignet sie sich überaus gut als Material für den Draht der Primärspule von Niederfrequenztransformatoren, die bei drahtloser Telephonie und Telegraphie Verwendung finden.The alloy according to the invention contains a maximum of 6% copper. As a result Due to the high silver content, there are no longer any copper-rich mixed crystals in the alloy present, so that there is practically no oxidation. Because the alloy as well has a very small ohmic resistance, it is extremely suitable as a material for the wire of the primary coil of low frequency transformers used in wireless Telephony and telegraphy find use.

Nach einer Ausführungsform der Erfindung sind zu der Legierung noch kleine Mengen von Nickel zugesetzt, was zur Folge hat, daß die Zugfestigkeit größer wird und Draht von besserer Beschaffenheit gezogen werdenkann. Wie sich durch Versuche ergeben hat, gelingt es nicht, Silber mit Nickel allein zu legieren, so daß die Herstellung von Silbernickeldraht nicht in Frage kommt. Bei der Legierung nach der Erfindung, die höchstens 6 % Kupfer enthält, kann man kleine Mengen von Nickel zusetzen und auf diese Weise eine Legierung erhalten, aus der Draht von besonders guter Beschaffenheit gezogen werden kann. Dieser Draht kann überaus fein ausgezogen werden, so daß mit diesem Draht bewickelte Transformatoren sehr kleine Abmessungen haben können; da der Draht der Oxydation nicht ausgesetzt ist, haben diese Transformatoren überdies eine sehr lange Lebensdauer.According to one embodiment of the invention, the alloy also includes Small amounts of nickel are added, with the result that the tensile strength is greater and wire of better quality can be drawn. How through trials has shown, it is not possible to alloy silver with nickel alone, so that the Production of silver nickel wire is out of the question. In the case of the alloy according to the In the invention, which contains a maximum of 6% copper, small amounts of nickel can be added and in this way an alloy is obtained from which wire is of particularly good quality can be drawn. This wire can be drawn out extremely fine, so that with Transformers wound with this wire can have very small dimensions; there the wire is not exposed to oxidation, these transformers also have a very long life.

Claims (2)

PATENTANSPRÜCHE: r. Transformator nach Patent 502 349 bei dem wenigstens eine der Spulen aus Draht zusammengesetzt ist, der aus einer Kupfer enthaltenden Silberlegierung besteht, dadurch gekennzeichnet, daß diese Legierung wenigstens 94°/o Silber enthält. PATENT CLAIMS: r. Transformer according to patent 502 349 in which at least one of the coils is composed of wire, the one containing copper Silver alloy, characterized in that this alloy is at least Contains 94 per cent silver. 2. Transformator nach Anspruch r, dadurch gekennzeichnet, daß zu der Legierung kleine Mengen von Nickel zugesetzt sind.2. Transformer according to claim r, characterized in that that small amounts of nickel are added to the alloy.
DEN27768D 1927-06-25 1927-09-01 The transformer of patent 502349, wherein at least one of the coils is composed of wire composed of a silver alloy containing copper Expired DE503835C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL503835X 1927-06-25

Publications (1)

Publication Number Publication Date
DE503835C true DE503835C (en) 1930-07-26

Family

ID=19786818

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN27768D Expired DE503835C (en) 1927-06-25 1927-09-01 The transformer of patent 502349, wherein at least one of the coils is composed of wire composed of a silver alloy containing copper

Country Status (1)

Country Link
DE (1) DE503835C (en)

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