| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.22 ( May 1990 ) Advanced Technologies of Iron and Steel, Commemorating the 20th Anniversary of the Technical Research Division ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Deformation of Slab under Heavy Reduction of Width by Sizing Press Takaaki Hira, Kunio Isobe, Hideo Abe, Hideyuki Nikaido, Takeshi Fujitsu, Susumu Zuyama |
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Synopsis : Kawasaki Steel Corp. and Hitachi Ltd. have developed the slab sizing press for the first time in the world. The sizing press enables us to meet a synchronized operation between continuous casting and hot rolling processes. The equipment has been put into practical operation smoothly since 1987 at Mizushima Works. The deformation of slabs by sizing press was investigated. The prediction model of width spread of slabs rolled by the first roughing stand after sizing press was developed. Deformation of the slab at leading and tail ends was analyzed by the upper bound technique to obtain the relationship between the plan view of slab ends and the geometrical conditions. The study was also extended to the effect of press conditions at leading and tail ends on sheet bar crops after roughing rolling. As a result, optimum press condition to minimize a crop loss has been clarified. |
| TextiPDF: 9p./393kbj |