Silver-based contact material for use in power-engineering switchgear, and a method of manufacturing contacts made of this material

摘要

The contact material in particular for contacts in low-voltage switches consists of silver and further active components. In accordance with the invention, iron (Fe) in proportions of between 1 and 50% by weight and rhenium (Re) in proportions of between 0.01 and 5% by weight are present in combination as active components. The manufacture of the material and the fabricating of the contacts can be effected by methods of powder metallurgy with inclusion of molding or extrusion techniques, the active components being used in the form of separate powders, as fusible alloy or as mechanically alloyed powder.