| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.37 ( October 1997 ) Rolling Technology and Modernization of Chiba Works ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| High Quality Production Technology at the
Chiba Works No. 3 Hot Strip Mill Toshio Imae, Nobuaki Nomura, Sadayuki Miyoshi |
| Synopsis: Kawasaki Steel started the operation of the No. 3 hot strip mill at its Chiba Works in May 1995. This is the first fully continuous hot strip mill in the world. To satisfy customer demands for the improvement of product qualities, the mill has the following features: (1) A high skid button was installed in reheating furnace to remove skid marks. (2) High speed processing, hydrauric edgers and long side guides were introduced in rougher mill. (3) A pair cross mill, a hydraulic screw down, an AC motor-drive and a low inertia looper were installed in finisher mill. (4) Subdivided control valves were installed in water cooling zone. These arrangements are controled precisely and thus, improved product accuracy in strip gauge, crown and width and the quality of the material. |
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