ELECTRODE WITH BRAZED SEPARATOR AND METHOD OF MAKING SAME

摘要

An electrode for a plasma arc torch and method of fabricating the same a re disclosed, and wherein the electrode comprises a copper holder defining two coaxial cavities. An emissive element is secured to one of the cavities and serves a s the cathode terminal for the arc during operation. A relatively non-emissive separator is disposed about the emissive element within the other cavity, and acts to separate the copper holder and the emissive element, as well as resisting detachment of t he arc from the emissive element and attachment to the copper holder. -22-