Method of manufacturing nickel core copper center electrodes

Details Method of manufacturing nickel core copper center electrodes Method of manufacturing nickel core copper center electrodes

1997-05-05

1998-04-28

Zimmerman, Brian

Electric lamp or space discharge component or device manufacturi

Process

Spark plug or spark gap making

313 115, 313141, H01T 2102, H01T 1339

Patent

active

057437777

ABSTRACT:
The present invention relates to a spark plug electrode (14) of a first material having good thermal conductivity having a core (24) of a second material having good corrosion resistance. The first material may be copper, or a copper alloy, and the second material may be nickel, a nickel alloy, silver, or a silver alloy. The electrode (14) may be produced by a method comprising the steps of: providing a tubular cup (28) formed of the first material; positioning a billet (34) of the second material within the cup (28); and extruding the assembled cup and billet.

REFERENCES:
patent: 2783409 (1957-02-01), McDougal
patent: 3407326 (1968-10-01), Romine
patent: 4585421 (1986-04-01), Payne
patent: 4826462 (1989-05-01), Lenk
patent: 4904216 (1990-02-01), Kagawa et al.
patent: 5210457 (1993-05-01), Oshima et al.

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