Metallurgical apparatus – Means treating solid metal – By contact with gas
Patent
1996-06-27
1998-11-10
Kastler, Scott
Metallurgical apparatus
Means treating solid metal
By contact with gas
148565, C21D 106
Patent
active
058339183
ABSTRACT:
A workpiece is heated by first forming an ionized gas plasma around the workpiece. A positive potential is applied to the workpiece to accelerate electrons from the plasma into the workpiece. The workpiece is uniformly surface heated by the energy directed into the workpiece by the electrons. The workpiece is cooled by providing a flow of a pressurized liquid material such as carbon dioxide having a triple point. The liquid material is expanded through a nozzle to form solid particles that contact the surface of the workpiece and remove heat from it by subliming.
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Krone-Schmidt Wilfried
Matossian Jesse N.
Williams John D.
Denson-Low W. K.
Duraiswamy V. D.
Hughes Electronics Corporation
Kastler Scott
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