Casting steel strip
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United States of America Patent
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Sep 13, 2005
Grant Date -
Jan 2, 2003
app pub date -
Jun 5, 2002
filing date -
Aug 7, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
In twin roll casting of steel strip, molten steel is introduced into the nip between parallel casting rolls to create a casting pool supported on casting surfaces of the rolls and the rolls are rotated to deliver solidified strip downwardly from the nip. Casting surfaces are textured by a random pattern of discrete projections at least some of which include peaks having a surface distribution of between 5 and 200 projections per mm2 and an average height of at least 10 microns. The random texture may be produced by grit blasting the casting surfaces on a substrate covered by a protective coating. Alternatively the texture may be produced by chemical deposition or electrodeposition of a coating onto a substrate to form the casting surfaces.
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