Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes
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United States of America Patent
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Nov 21, 2006
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N/A
app pub date -
Feb 16, 2005
filing date -
Sep 20, 2002
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Abstract
A method and apparatus for optimizing melting of titanium for processing into ingots or end products. The apparatus provides a main hearth, a plurality of optional refining hearths, and a plurality of casting molds or direct molds whereby direct arc electrodes melt the titanium in the main hearth while plasma torches melt the titanium in the refining chambers and/or adjacent the molds. Each of the direct arc electrodes and plasma torches is extendable and retractable into the melting environment and moveable in a circular pivoting or side to side linear motion.
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