VERFAHREN ZUR HERSTELLUNG VON ELEKTRISCHEN KONTAKTEN FUER VAKUUM- TRENNSCHALTER

摘要

A vacuum interrupter contact is formed of copper and chromium which exhibits high electrical conductivity and a high density of greater than about 95% of the theoretical density of the materials. The copper is the predominant constituent, and a mixture of copper and chromium powder is cold-pressed to form a compact which is then vacuum-sintered at a temperature below the melting point of the copper to achieve the desired high density.