Contact element for electrical switch contacts

Abstract

Abstract 1. Contact element for electrical switch contacts, preferably a contact stud for electromagnetic relays, a two-layer contact deposit being galvanically applied on a carrier consisting of non-precious metal, and at least one of the layers containing palladium, characterized in that the inner layer has a thickness of 3 to 5 mu m and is formed from an alloy of palladium and an additional component, the additional component comprising a portion of 10 to 50% by weight and at least one element from the group nickel, cobalt and copper, and in that the outer layer has a thickness of 0.1 to 1 mu m and is formed from an alloy of palladium-silver or palladium-gold with a silver or gold portion of 10 to 40% by weight.

Inventors

• 👤 Klaus-Dieter Heppner
• 👤 Josef Dr. Dipl.-Phys. Weiser

Bibliographic Details