Studies of Melting by 60kW Electron Beam Furnace

Studies of Melting by 60kW Electron Beam Furnace

Some design features of a 60 kW remote controllable gun type electron beam furnace are described. Distance between the target crucible and the cathode was about 1.3 meter. This rather long distance prevents apparently contamination from the cathode materials by evaporation of sputtering. After 150 h...

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Veröffentlicht in:SHINKU 1963/03/20, Vol.6(3), pp.96-107
Hauptverfasser: MATUZAWA, Akio, KOSAKI, Masatoshi, HIRUTA, Hiroyuki, KASHU, Seiichiro, HAYASHI, Chikara
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container_end_page 107
container_issue 3
container_start_page 96
container_title SHINKU
container_volume 6
creator MATUZAWA, Akio
KOSAKI, Masatoshi
HIRUTA, Hiroyuki
KASHU, Seiichiro
HAYASHI, Chikara
description Some design features of a 60 kW remote controllable gun type electron beam furnace are described. Distance between the target crucible and the cathode was about 1.3 meter. This rather long distance prevents apparently contamination from the cathode materials by evaporation of sputtering. After 150 hrs of melting the cathode seemed slightly to be eroded by ionic bombardment but it could be put into further service. Various forms of tanalum, tungsten, and other refractory metals were melted satisfactorily by using the furnace. Optimization of operating variables for melting tantalum was also studied.
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