DE653715C - Method for attaching the contact material to the contact point of rivets formed from base metal with a double layer - Google Patents

Method for attaching the contact material to the contact point of rivets formed from base metal with a double layer

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Publication number
DE653715C
DE653715C DER88662D DER0088662D DE653715C DE 653715 C DE653715 C DE 653715C DE R88662 D DER88662 D DE R88662D DE R0088662 D DER0088662 D DE R0088662D DE 653715 C DE653715 C DE 653715C
Authority
DE
Germany
Prior art keywords
contact
double layer
base metal
attaching
contact material
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
DER88662D
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.)
RAU FA G
Original Assignee
RAU FA G
Publication date
Priority to DER88662D priority Critical patent/DE653715C/en
Application granted granted Critical
Publication of DE653715C publication Critical patent/DE653715C/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/58—Making machine elements rivets
    • B21K1/62—Making machine elements rivets special rivets, e.g. with electrical contacts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)

Description

Die Herstellung von Kontaktnieten mit Dubleeauflage ist bekannt.The manufacture of contact rivets with a double layer is known.

Das Wesen des neuen Verfahrens besteht in der Anhäufung der Dubleeauflage auf dem Setzkopf dieser bekannten Nieten.The essence of the new procedure consists in the accumulation of the duble pad on the Set head of these well-known rivets.

Die Ausübung des neuen Verfahrens erfolgt so, daß die Dubleeaufläge vor oder gleichzeitig mit der Ausprägung des allein mit der Dubleeauflage überzogenen Setzkopfes des Nietes mit Hilfe eines Stempels mit konkaver Endfläche nach der Mittelachse des Nietes hin zusammengestaucht wird.The practice of the new procedure takes place in such a way that the duplicate editions before or at the same time with the expression of the setting head of the rivet, which is covered only with the duplex overlay, with the help of a stamp with a concave End face is compressed towards the central axis of the rivet.

Sowohl durch Verkleinerung der Zahl und Vereinfachung der Bearbeitungsphasen als auch, hinsichtlich der sparsamen "Ausnutzung des teueren Kontaktmaterials und der erhöhten Lebensdauer der Auflage bedeutet das neue Verfahren gegenüber dem bekannten einen technischen Fortschritt in der Hierstellung der besonderen Kontaktnietformen mit Dubleeauflage.Both by reducing the number and simplifying the processing phases as also, with regard to the economical "utilization That means the expensive contact material and the increased service life of the support new process compared to the known a technical advance in the position of the special contact rivet shapes with double layer.

In der Zeichnung ist das neue Verfahren beispielsweise erläutert.The new method is explained in the drawing, for example.

Bei der Ausübung des neuen Verfahrens wird von der in Abb. 1 in Ansicht und Draufsicht dargestellten, in bekannter Weise aus Dubleeblech oder -draht gewonnenen Vorform eines Niets ausgegangen, dessen mit Schaftes versehener Setzkopf α auf der oberen Seite die Dubleeauflage b trägt. Diese Vorform wird in das in Abb. 2 im Schnitt gezeigte Gesenk i gesetzt und hierauf der Belag b vermittels des mit konkaver Endfläche versehenen Stempels A nach der Mittelachse des Niets-hin zusammengestaucht. Hierdurch wird eine vorteilhafte Verstärkung des am meisten der Abnutzung unterworfenen Teils der Dübleeauflage b erreicht. Bei diesem Vorgang kann der Setzkopf« einschließlich seiner Auflage δ schon seine endgültige Form erhalten.-Es kann jedoch noch weiteres Ausprägen erfolgen, durch das beispielsweise die in Abb. 3 in Ansicht 'und Draufsicht dargestellte Form des Kopfes d mit Auflage ^1 gewonnen wird. Es hat sich gezeigt, daß auch bei diesem weitenen Ausprägen des Setzkopfes, das beispielsweise bis zur Erreichung einer ebenen Kontaktfläche getrieben werden kann, die vorteilhafte Anhäufung des Auflagemetalls nach der Mitte zu bestehen bleibt.In the practice of the new process preform obtained is from the position shown in Fig. 1 in a view and plan view, in a known manner from Dubleeblech or wire assumed that a rivet, which provided with the shaft setting head α on the upper side of the Dubleeauflage bears b. This preform is placed in the die i shown in section in FIG. 2 and the covering b is then compressed by means of the punch A provided with a concave end surface towards the center axis of the rivet. In this way, an advantageous reinforcement of the part of the dowel support b that is most subject to wear is achieved. During this process, the setting head including its support δ can already be given its final shape. However, further shaping can take place through which, for example, the shape of the head d with support ^ 1 shown in Fig. 3 in elevation and plan view is obtained . It has been shown that even with this wide shape of the setting head, which can be driven, for example, until a flat contact surface is reached, the advantageous accumulation of the clad metal towards the center remains.

Im allgemeinen wird die Unterlage β aus Kupfer und die Auflage b aus Silber bestehen. Die Unterlage kann aber auch aus jedem andern Metall oder jeder Metallegierung hergestellt sein, die sich durch Preis und Leitfähigkeit dafür, eignen. So kann anstatt Kupfer z. B. auch Aluminium Verwendung finden. Bei der Auflage kann an die Stelle von Silber jedes andere Edelmetall oder Edelmetallegierungen oder sonst für Kontaktflächen geeignete Metalle, wie Nickel, Molybdän, Wolfram, Tantal oder Gemenge dieser Metalle unter sich oder mit anderen Metallen,In general, the base β will be made of copper and the support b will be made of silver. However, the base can also be made of any other metal or any metal alloy that is suitable for it due to its price and conductivity. So instead of copper z. B. aluminum can also be used. During the application, any other precious metal or precious metal alloys or other metals suitable for contact surfaces, such as nickel, molybdenum, tungsten, tantalum or mixtures of these metals with one another or with other metals, can be used in place of silver.

treten.step.

Claims (1)

Patentanspruch:Claim: Verfahren zur Anhäufung des Kontaktmaterials an der Kontaktstelle von aus unedlem Metall mit Dubleeauflage geformten Nieten, dadurch gekennzeichnet, daß die Dubleeauflage vor oder gleichzeitig mit der Ausprägung des allein mit der Dubleeauflage überzogenen Setzkopfes des Nietes mit Hilfe eines Stempels (Ä) mit konkaver Endfläche nach der Mittelachse des Nietes hin zusammengestaucht wird.Method of accumulating the contact material at the point of contact from Base metal with rivets shaped as a double layer, characterized in that the duplicate overlay before or at the same time as the shape of the setting head of the covered solely with the duplicate overlay Rivet with the help of a punch (Ä) with a concave end face on the central axis of the rivet is compressed.
DER88662D Method for attaching the contact material to the contact point of rivets formed from base metal with a double layer Expired DE653715C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER88662D DE653715C (en) Method for attaching the contact material to the contact point of rivets formed from base metal with a double layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER88662D DE653715C (en) Method for attaching the contact material to the contact point of rivets formed from base metal with a double layer

Publications (1)

Publication Number Publication Date
DE653715C true DE653715C (en) 1937-12-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DER88662D Expired DE653715C (en) Method for attaching the contact material to the contact point of rivets formed from base metal with a double layer

Country Status (1)

Country Link
DE (1) DE653715C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697150A (en) * 1993-07-14 1997-12-16 Hitachi, Ltd. Method forming an electric contact in a vacuum circuit breaker
US5852266A (en) * 1993-07-14 1998-12-22 Hitachi, Ltd. Vacuum circuit breaker as well as vacuum valve and electric contact used in same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5697150A (en) * 1993-07-14 1997-12-16 Hitachi, Ltd. Method forming an electric contact in a vacuum circuit breaker
US5852266A (en) * 1993-07-14 1998-12-22 Hitachi, Ltd. Vacuum circuit breaker as well as vacuum valve and electric contact used in same
US6048216A (en) * 1993-07-14 2000-04-11 Hitachi, Ltd. Vacuum circuit breaker as well as vacuum valve and electric contact used in same

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