DE510146C - Electrical breaker contact, especially for the ignition circuit breakers of internal combustion engines - Google Patents

Electrical breaker contact, especially for the ignition circuit breakers of internal combustion engines

Info

Publication number
DE510146C
DE510146C DEH124658D DEH0124658D DE510146C DE 510146 C DE510146 C DE 510146C DE H124658 D DEH124658 D DE H124658D DE H0124658 D DEH0124658 D DE H0124658D DE 510146 C DE510146 C DE 510146C
Authority
DE
Germany
Prior art keywords
internal combustion
combustion engines
ignition circuit
circuit breakers
breaker contact
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
DEH124658D
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.)
Hirsch Kupfer & Messingwerke
Original Assignee
Hirsch Kupfer & Messingwerke
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 Hirsch Kupfer & Messingwerke filed Critical Hirsch Kupfer & Messingwerke
Priority to DEH124658D priority Critical patent/DE510146C/en
Application granted granted Critical
Publication of DE510146C publication Critical patent/DE510146C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Contacts (AREA)

Description

Elektrischer Unterbrecherkontakt, insbesondere für die Zündstromunterbrecher von Brennkraftmaschinen Zur Herstellung der Unterbrecherkontakte der Zündstromunterbrecher von Brennkraftmaschinen oder von anderen Apparaten wurden bisher hochwertige Metalle, wie Platin, Wolfram u. dgl., verwendet. Diese Kontakte haben jedoch den Nachteil, daß durch die im Hammer sich dauernd bildenden Lichtbogen diese Metalle mit der Zeit oxydieren, wodurch der Übergangswiderstand an den Oberflächen des Hammers derart erhöht wird, daß die Kontaktgebung versagt.Electrical breaker contact, especially for the ignition circuit breaker of internal combustion engines To produce the breaker contacts of the ignition circuit breaker high-quality metals have been used by internal combustion engines or other devices such as platinum, tungsten and the like are used. However, these contacts have the disadvantage that through the arc constantly forming in the hammer these metals with the Time to oxidize, thus reducing the contact resistance on the surfaces of the hammer is increased that the contact fails.

Dieser Nachteil wird gemäß der vorliegenden Erfindung dadurch beseitigt, daß der Unterbrecherkontakt aus einer Legierung von Wolfram mit i bis 32°(o Eisen, i bis 3211, Kobalt, r bis 25"/" Chrom und i bis io°/o Kohle hergestellt wird. Solche Legierungen sind bereits wegen ihrer großen Härte für die Herstellung von Werkzeugen bekannt geworden, eignen sich jedoch sowohl wegen ihrer Härte als auch wegen ihrer Widerstandsfähigkeit gegen Oxydation besonders gut für Unterbrecherkontakte von Stromunterbrechern, indem bei aus solchen Legierungen hergestellten Unterbrecherkontakten keine Störungen infolge Oxydation auftreten können und auch die Lebensdauer des Unterbrecherkontaktes erheblich heraufgesetzt wird.This disadvantage is eliminated according to the present invention in that the breaker contact is made from an alloy of tungsten with 1 to 32 ° (o iron, 1 to 3211, cobalt, 1 to 25 "/" chromium and 1 to 10% carbon Such alloys are already known because of their great hardness for the production of tools, but are particularly suitable for breaker contacts of circuit breakers because of their hardness as well as their resistance to oxidation, since breaker contacts made from such alloys do not cause any disturbances due to oxidation can and also the service life of the breaker contact is significantly increased.

Claims (1)

PATENTANSPRUCH; Elektrischer Unterbrecherkontakt, insbesondere für die Zündstromunterbrecher von Brennkraftmaschinen, dadurch gekennzeichnet, daß er aus einer an sich bekannten Legierung von Wolfram mit i bis 32°'o Eisen, i bis 32°/o Kobalt, i bis 25°1o Chrom und i bis io°/o Kohle besteht.PATENT CLAIM; Electrical breaker contact, especially for the ignition circuit breaker of internal combustion engines, characterized in that it from a known alloy of tungsten with 1 to 32 ° / o iron, 1 to 32 ° / o Cobalt, 1 to 25% chromium and 1 to 10% carbon.
DEH124658D 1929-12-17 1929-12-17 Electrical breaker contact, especially for the ignition circuit breakers of internal combustion engines Expired DE510146C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH124658D DE510146C (en) 1929-12-17 1929-12-17 Electrical breaker contact, especially for the ignition circuit breakers of internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH124658D DE510146C (en) 1929-12-17 1929-12-17 Electrical breaker contact, especially for the ignition circuit breakers of internal combustion engines

Publications (1)

Publication Number Publication Date
DE510146C true DE510146C (en) 1930-10-16

Family

ID=7174689

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH124658D Expired DE510146C (en) 1929-12-17 1929-12-17 Electrical breaker contact, especially for the ignition circuit breakers of internal combustion engines

Country Status (1)

Country Link
DE (1) DE510146C (en)

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