Hot tops
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United States of America Patent
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Oct 5, 1982
Grant Date -
N/A
app pub date -
Apr 7, 1980
filing date -
Apr 7, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hot top lining for use in casting metal ingots is positioned in the mouth of the mould or in a head box at the top of the mould and comprises a plurality of refractory, heat-insulating lining slabs at least one of which has, at its outward-facing surface and adjacent to its lower edge, at least two ribs extending horizontally across the slab to inhibit upward flow of molten metal behind the slab. The ribbed slabs themselves form a part of the invention.
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