W.c. Heraeus Gmbh

Elke Biberbach

Nils Harmsen

Fritz Aldinger

Albrecht Bischoff

A low-power electrical contact particularly suitable for switching and plug-in connections. The contact comprises an outer contact layer and a substrate composed of a copper base alloy. The contact layer consists essentially of an alloy of 35-55% by weight gold, 18-33.5% silver, 30-40% palladium, and (i) 1-6% indium, or (ii) 0.5-2% tin together with 0.5-2% indium. An intermediate layer of nickel or copper-nickel may be interposed between the contact layer and the substrate.

Low-power electric contact

The invention provides jets, nozzles, and perforated base plates produced from alloys that consist essentially of 40-70% platinum, 20-50% palladium, 5-15% rhodium, and 0.5-4% gold. They are resistant to attack by molten glass, particularly glass containing silicates.

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Hanau, Germany

Elke Biberbach