Hot rolling method and apparatus for hot rolling

Details Hot rolling method and apparatus for hot rolling Hot rolling method and apparatus for hot rolling

C - Chemistry, Metallurgy

21

D

38/8, 148/34.4

C21D 7/13 (2006.01) B21B 37/74 (2006.01) C21D 8/02 (2006.01) C21D 9/54 (2006.01) C21D 11/00 (2006.01) B21B 1/26 (2006.01) B21B 45/00 (2006.01)

Patent

CA 1264646

ABSTRACT OF THE DISCLOSURE A hot rolling method, wherein portions of a hot-rolled steel material having suffered a temperature fall below Ar3 transformation temperature thereof during hot rolling are subjected to an intermediate heating to have a temperature not less than Ac3 transformation temperature before the steel material is finally finish- hot-rolled, whereby a resultant hot-rolled product can have a superior uniform structure without duplex structure, and apparatus for effecting the method.

503090

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