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公开(公告)号：EP1452247A4
公开(公告)日：2007-04-25
申请号：EP02801501
申请日：2002-10-08
申请人： JFE STEEL CORP
IPC分类号： B21B1/26 , B21B1/38 , B21B15/00 , B21B45/00 , B21B45/02 , B21D1/02 , C21D1/42 , C21D8/02 , C21D8/04 , C21D9/60
CPC分类号： C21D8/0442 , B21B1/26 , B21B1/38 , B21B45/004 , B21B45/0218 , B21B2015/0071 , B21D1/02 , C21D1/42 , C21D8/0226 , C21D8/0242 , C21D8/0263 , C21D9/60 , Y02P10/253
摘要： A method of manufacturing a steel plate, comprising the steps of, by using steel plate manufacturing equipment having at least one unit of cooling device, at least one unit of correction device, and at least one unit of induction heating device disposed in order on the downstream side of at least one unit of hot rolling mill, acceleratedly-cooling the steel plate rolled by the hot rolling mill by the cooling device, correcting the shape of the acceleratedly cooled steel plate by the correction device, and heat- treating the portions of the steel plate corrected during the shape correction of the steel plate in order by the induction heating device, whereby the steel plate having excellent flatness and specified characteristics can be manufactured without lowering a productivity.
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公开(公告)号：EP1359230A4
公开(公告)日：2005-01-05
申请号：EP01271125
申请日：2001-12-18
申请人： JFE STEEL CORP
发明人： FUJIBAYASHI AKIO , HINO YOSHIMICHI , TAGANE AKIRA , SEKINE HIROSHI , SUZUKI NORITSUGU , WATANABE ATSUSHI , SUGIOKA MASATOSHI
CPC分类号： C21D1/18 , C21D1/42 , C21D1/62 , C21D8/0226 , C21D8/0242 , C21D9/46 , Y02P10/253
摘要： The invention relates to a method for manufacturing a steel plate comprising the steps of: hot-rolling a steel slab to a steel plate; quenching or accelerated cooling the steel plate; and tempering the steel plate after quenching or accelerated cooling by a solenoid induction heating unit, wherein the step of tempering is conducted by discontinuously heating the steel plate in two or more cycles to a target temperature. The method of the present invention assures on-line tempering for uniformly heating over the whole thickness direction of steel plate without degrading the productivity and overheating the surface of steel plate to above the target level.
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3.发明公开HEAT TREATING DEVICE, HEAT TREATING METHOD, RECORDING MEDIUM RECORDING HEAT TREATING PROGRAM AND STEEL PRODUCT 审中-公开热处理部，热处理方法，热处理程序记录介质和钢铁产品
公开(公告)号：EP1496129A4
公开(公告)日：2006-02-22
申请号：EP03745906
申请日：2003-04-03
申请人： JFE STEEL CORP
发明人： IIJIMA YOSHITSUGU , MIZUNO HIROSHI , SEKINE HIROSHI , SUZUKI NORITSUGU , NAKANO KIYOSHI , SUGIOKA MASATOSHI
CPC分类号： C21D11/00 , B23K35/32 , C21D1/42 , C21D9/60 , Y02P10/253
摘要： A heat treating device comprising a plurality sets of induction heating device (6) for heating a steel product (1), a correcting device (5) for correcting a steel product, a computing device (14) for computing power to be supplied to the induction heating device based on the conveying speed of a steel product, its target heating temperature, and its estimated temperature in a pre-stage in the induction heating device, and a power supply device (12) for supplying to the induction heating device a schedule power computed by the computing device, wherein the computing device computes power for uniformly heat-treating a steel product or power for surface-heat-treating a steel product.
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