METHODS OF PROCESSING METALLIC MATERIALS
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United States of America Patent
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N/A
Issued Date -
Aug 21, 2014
app pub date -
Apr 24, 2014
filing date -
Mar 30, 2007
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A method of processing a metallic material includes introducing an electrically conductive metallic material comprising at least one of a metal and a metallic alloy into a furnace chamber maintained at a low pressure relative to atmospheric pressure. A first electron field having a first area of coverage is generated using at least a first ion plasma electron emitter, and the material within the furnace chamber is subjected to the first electron field to heat the material to a temperature above a melting temperature of the material. A second electron field having a second area of coverage smaller than the first area of coverage is generated using a second ion plasma electron emitter. At least one of any solid condensate within the furnace chamber, any solidified portions of the electrically conductive metallic material, and regions of a solidifying ingot to the second electron field, is subjected to the second electron field, using a steering system.
First Claim
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