Device and method for filtering molten metal
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United States of America Patent
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Sep 26, 2017
Grant Date -
Sep 29, 2016
app pub date -
Mar 27, 2015
filing date -
Mar 27, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A device and method for transferring filtered molten metal to a die casting mold. The device and method include a casting filtration system that includes a funnel and a continuously replaceable filter placed fluidly between a molten metal source and a casting mold. Both the funnel and filter are automatically moved into cooperation with a molten metal receptacle such as a shot sleeve prior to each casting operation, and then automatically moved out of the way so that pressurization of the filtered molten metal may take place in the receptacle. In addition, the filter may be formed on a continuous strand such that indexed movement of the strand will advance the used portion of the filter out of the way to make room for a new unused filter portion that will be ready for a subsequent repeated casting operation.
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