Process and apparatus for producing metal ingots
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United States of America Patent
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Oct 26, 2021
Grant Date -
Feb 25, 2021
app pub date -
Jan 8, 2019
filing date -
Jan 9, 2018
priority date (Note) -
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Abstract
A process for producing metal ingots includes the steps of: a) filling at least one ingot mould at a filling temperature with at least one metal charge in the solid state, which has a melting temperature higher than ambient temperature, b) melting the metal charge by heating the ingot mould to a heating temperature higher than or equal to the melting temperature of the metal charge, c) solidifying the molten metal charge into an ingot by cooling the ingot mould to a cooling temperature lower than the melting temperature of the metal charge and higher than the ambient temperature, d) extracting the ingot from the ingot mould at an extraction temperature, and e) repeating steps a) to d). At steady state, both the filling temperature and the extraction temperature are lower than or equal to the cooling temperature and higher than the ambient temperature.
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