Metallurgical apparatus – Process
Reexamination Certificate
2010-02-22
2011-12-13
Kastler, Scott (Department: 1733)
Metallurgical apparatus
Process
C266S252000, C266S099000, C266S259000
Reexamination Certificate
active
08075836
ABSTRACT:
Steel-sheet continuous annealing equipment includes, in sequence, a pre-heating zone, a heating zone, a soaking zone, a cooling zone, a reheating zone, an overaging zone, and a final cooling zone, and further includes a rapid heating region and a rapid cooling region that are provided within a range from the reheating zone to the final cooling zone (including the reheating zone and the final cooling zone), the rapid heating region allowing rapid heating of a steel sheet at a heating rate of 15° C./s or more and the rapid cooling region allowing rapid cooling, at a cooling rate of 10° C./s or more, of the steel sheet that has been rapidly heated in the rapid heating region. Various steel-sheet products ranging from mild steel sheets to ultrahigh-tensile steel sheets can be produced by performing a heat treatment with such steel-sheet continuous annealing equipment.
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Murakami Toshio
Nakayama Shinobu
Okada Rie
(Kobe Steel, Ltd.)
Aboagye Michael
Kastler Scott
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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