Process for manufacturing alloy powder with dual consumable rotary electrodes arc melting

A process for manufacturing alloy powder with dual consumable rotary electrodes arc melting, in which equipment for a conventional rotary electrode arc melting process for manufacturing alloy powder is employed to manufacture an alloy powder containing a first and a second metal, said equipment including a three-phase motor, a power supply, and a feed motor, and having a manufacturing chamber;

• said process comprising the following steps:
• providing a rotary electrode containing said first metal to serve as an anode, and a feed electrode containing said second metal to serve as a cathode;
• locating said rotary electrode and said feed electrode at predetermined positions in said manufacturing chamber;
• vacuumizing said manufacturing chamber and supplying a protective gas thereinto;
• and
• actuating said three-phase motor and said power supply, and actuating said feed motor to drive said feed electrode when said three-phase motor reaches at a predetermined rotating speed;
• said process being characterized in that an electric arc is utilized to melt said second metal contained in said cathode and said first metal contained in said anode, so that said first and second metals in molten state are mixed with each other and atomized to produce alloy powder;
• and that said feed electrode may be provided with an increased feed speed or an increased diameter to produce alloy powder having predetermined alloy compositions;
• and that said rotary electrode may be provided with an increased rotating speed or an increased diameter to centrifugally atomize a molten mixture of said first and second metals into the finest possible alloy powder.