Method and apparatus for cooling rolled steels

Details Method and apparatus for cooling rolled steels Method and apparatus for cooling rolled steels

C - Chemistry, Metallurgy

21

D

38/30, 148/34

C21D 1/60 (2006.01) B21B 45/02 (2006.01) C21D 1/667 (2006.01) C21D 8/00 (2006.01) C21D 8/06 (2006.01) C21D 9/573 (2006.01) B21B 37/74 (2006.01)

Patent

CA 1265421

Abstract of the Disclosure Steel hot-rolled to the desired diameter and allowed to travel forward is quenched with cooling water to a temperature below the bainite transformation temperature chosen from within the following range: 145?t/r2 + 130 ? T ? 152?t/r2 + 240 where T = surface temperature of the rolled steel at a point 1 m to 2 m away form the point where quenching ends (°C) t = time required by the rolled steel for travelling from the quenching ending point to the temperature measuring point (hr) r = radius of the rolled steel (m) Then, the surface area of the rolled steel is subsequently automatically recovered by the heat of the core.

521775

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