C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
148/55, 38/8
C21D 9/573 (2006.01) C21D 9/56 (2006.01)
Patent
CA 1245136
KAWASAKI STEEL 59-89,930 comb. Abstract of the Disclosure A method and an apparatus for continuously annealing cold rolled steel strips successively passing through a preheating zone, a low temperature heating zone, a high temperature heating soaking zone, a primary cooling zone and a secondary cooling zone. In each zone, the steel strip is driven by hearth rolls alternately upward and downward in a serpentine path. According to the invention, in a high temperature zone such as the high temperature heating zone and the primary cooling zone where the steel strip is prone to heat buckling, the steel strip is caused to pass only once in a single direction without along the serpentine path, thereby preventing meandering and heat buckling of the steel strip.
480691
Nagashima Atsushi
Nakajima Yasuhisa
Ohta Norio
Sato Kuniaki
Soeda Naohiko
Kawasaki Steel Corporation
Smart & Biggar
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