Process for producing ingot
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United States of America Patent
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app pub date -
Apr 12, 2007
filing date -
Jun 9, 2005
priority date (Note) -
Abandoned
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Abstract
A large and uniform ingot is produced by casting smaller ingots from a melt of a metallic material which may include a high-melting-point active metal such as Ti or a Ti alloy obtained by a cold crucible induction melting method, forming a consumable electrode by using these smaller ingots, re-melting this consumable electrode by a vacuum arc re-melting method, and casting a larger ingot by using the obtained melt.
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