Manufacturing method for a multi-channel copper tube, and manufacturing apparatus for the tube
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United States of America Patent
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Oct 28, 2014
Grant Date -
May 23, 2013
app pub date -
Nov 16, 2012
filing date -
Dec 14, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
This manufacturing apparatus for a multi-channel tube having a plurality of parallel channels includes: a crucible; and a die set for forming the multi-channel tube from molten copper supplied from the crucible, the die set including: a hollow portion having an inner surface shaped like the profile of the multi-channel tube; punches which are inserted into the hollow portion from an inlet end of the hollow portion to define a space between the inner surface of the hollow portion and each of the punches; and a feed passage which is disposed between the crucible and the space, and configured to feed the molten copper from the crucible to the space, the molten copper being supplied from the crucible to the space within the die set through the feed passage to solidify as it passes through the hollow portion.
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