Simultaneous multi-mode gas activation degassing device for casting ultraclean high-purity metals and alloys
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United States of America Patent
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Sep 29, 2015
Grant Date -
Aug 28, 2014
app pub date -
Feb 22, 2013
filing date -
Feb 22, 2013
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Abstract
An “in-line” device to continuously remove dissolved gasses from liquid metal is described. The device described herein may contain an apparatus to create a partial vacuum, one or more ultrasonic vibrators below the surface of the liquid metal to evolve gas bubbles within the metal, and a high-frequency vibrating metal plate which the fluid must pass over at a low depth. The device may be used to create high quality metals, including aluminum and aluminum alloy for a number of demanding applications such as pharmaceutical, semiconductor, foil, and aerospace applications including Aluminum-Lithium alloys.
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