Method for manufacturing titanium ingot
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United States of America Patent
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Mar 24, 2015
Grant Date -
Jan 22, 2015
app pub date -
Oct 7, 2014
filing date -
Aug 22, 2011
priority date (Note) -
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Abstract
The present invention is a method for manufacturing a titanium ingot (30), the method being characterized by comprising: a step of melting a titanium alloy for a predetermined time by cold crucible induction melting (CCIM); a step of supplying molten titanium (6) to a cold hearth (10), and separating high density inclusions (HDIs) (8) by precipitation in the cold hearth (10) while spraying a plasma jet or an electron beam onto the bath surface of the molten titanium (6); and a step of supplying a molten titanium starting material from which the HDIs (8) are separated by precipitation to a mold (20) to obtain the titanium ingot.
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