C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
38/8
C21D 9/63 (2006.01) C21D 9/56 (2006.01)
Patent
CA 1246338
Abstract of the Disclosure The present invention relates to method and apparatus for heating a strip of metallic material in a continuous anneal- ing furnace and more particularly improvement of or relating to method and apparatus for heating a strip of metallic material in a continuous annealing furnace in which annealing of the strip is continuously carried out in such a manner that gas serving to adjust temperature of the strip is blown toward the strip through a plurality of gas jet nozzles which are arranged on the one side or both the sides of the strip, wherein temperature and flow rate of the strip are properly determined to a required level in response to changing of the operating conditions such as heat cycle, line speed, thickness of strip, width of strip or the like. Further, the present invention relates to method and apparatus for heating a strip of metallic material in a continu- ous annealing furnace, wherein temperature of the strip is con- trolled to reach a target temperature by heating or cooling the strip by means of gas jet or the like having excellent respond- ency at a part of the heating zone in the continuous annealing furnace whereby irregular annealing of the strip is inhibited effectively.
494756
Fukushima Takeo
Furukawa Kusuo
Harada Masahiro
Nakajima Yasuhisa
Ohta Norio
Fetherstonhaugh & Co.
Kawasaki Steel Corporation
Mitsubishi Jukogyo Kabushiki Kaisha
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