Method of improving the surface quality of a continuously cast slab
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United States of America Patent
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Apr 17, 2001
Grant Date -
N/A
app pub date -
Nov 6, 1998
filing date -
Nov 17, 1997
priority date (Note) -
Expired
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Abstract
A method of improving the surface quality of a continuously cast slab, particularly a thin slab having a maximum cast thickness of 100 mm, wherein the slab is covered with a casting slag film and a layer of scale, and wherein the slab is descaled after casting and is rolled in a finishing train. A reaction agent, which is different from water, is applied onto the slab prior to descaling or during descaling. The application of the reaction agent may be preceded by a conventional hydraulic, mechanical or pneumatic removal of the layer of scale which covers the slab.
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