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公开(公告)号：US20120151981A1
公开(公告)日：2012-06-21
申请号：US13391987
申请日：2010-12-16
IPC分类号： B21B27/06
CPC分类号： B21B37/76 , B21B1/26 , B21B38/006 , B21B45/0218 , B21B2275/06
摘要： The present invention provides a method for cooling a hot-rolled steel strip after a finishing rolling in which a transportation speed varies, the method including: setting a transportation-speed changing schedule on the basis of a temperature of a steel strip before the finishing rolling and a condition of the finishing rolling; performing a first cooling in which the hot-rolled steel strip is cooled under a film boiling state in a first cooling section; performing a second cooling in which the hot-rolled steel strip is cooled with a water amount density of not less than 2 m3/min/m2 in a second cooling section; and coiling the hot-rolled steel strip, in which a cooling condition is controlled in the first cooling so as to satisfy 0.8≦(T2a′−T2a)/ΔTx≦1.2.
摘要翻译： 本发明提供了一种在精轧后对运输速度变化的热轧钢带进行冷却的方法，该方法包括：根据精轧前的钢带的温度来设定运输速度变更表 和精轧的条件; 进行第一冷却，其中在第一冷却段中将热轧钢带在薄膜沸腾状态下冷却; 在第二冷却段中进行第二冷却，其中热轧钢带以不低于2m 3 / min / m 2的水量密度冷却; 并卷取热轧钢带，其中在第一冷却中控制冷却条件以满足0.8＆lt; NlE;（T2a'-T2a）/＆Dgr; Tx＆nlE; 1.2。
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公开(公告)号：US08359894B2
公开(公告)日：2013-01-29
申请号：US13391987
申请日：2010-12-16
IPC分类号： B21B37/74
CPC分类号： B21B37/76 , B21B1/26 , B21B38/006 , B21B45/0218 , B21B2275/06
摘要： The present invention provides a method for cooling a hot-rolled steel strip after a finishing rolling in which a transportation speed varies, the method including: setting a transportation-speed changing schedule on the basis of a temperature of a steel strip before the finishing rolling and a condition of the finishing rolling; performing a first cooling in which the hot-rolled steel strip is cooled under a film boiling state in a first cooling section; performing a second cooling in which the hot-rolled steel strip is cooled with a water amount density of not less than 2m3/min/m2 in a second cooling section; and coiling the hot-rolled steel strip, in which a cooling condition is controlled in the first cooling so as to satisfy 0.8≦(T2a′−T2a)/ΔTx≦1.2.
摘要翻译： 本发明提供了一种在精轧后对运输速度变化的热轧钢带进行冷却的方法，该方法包括：根据精轧前的钢带的温度来设定运输速度变更表 和精轧的条件; 进行第一冷却，其中在第一冷却段中将热轧钢带在薄膜沸腾状态下冷却; 进行第二冷却，其中在第二冷却段中热水钢带的水量密度不低于2m 3 / min / m 2; 并卷取热轧钢带，其中在第一冷却中控制冷却条件以满足0.8＆lt; NlE;（T2a'-T2a）/＆Dgr; Tx＆nlE; 1.2。
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公开(公告)号：US20120067470A1
公开(公告)日：2012-03-22
申请号：US13319600
申请日：2010-05-13
申请人： Yoshihiro Serizawa , Yasuhiro Nishiyama , Shigeru Ogawa , Shinji Ida , Hitoshi Nikaidoh , Isao Yoshii , Noriyuki Hishinuma , Tetsuo Kishimoto , Nobuhiro Takagi
发明人： Yoshihiro Serizawa , Yasuhiro Nishiyama , Shigeru Ogawa , Shinji Ida , Hitoshi Nikaidoh , Isao Yoshii , Noriyuki Hishinuma , Tetsuo Kishimoto , Nobuhiro Takagi
CPC分类号： B21B45/0218
摘要： The present invention provides a method of cooling a hot-rolled steel strip which has passed through a finishing rolling, including: cooling the hot-rolled steel strip from a first temperature of not lower than 600° C. and not higher than 650° C. to a second temperature of not higher than 450° C. with cooling water having the water amount density of not lower than 4 m3/m2/min and not higher than 10 m3/m2/min, wherein with respect to the area of the target surface, the area of a portion where a plurality of spray jets of the cooling water directly strikes on the target surface is at least 80%.
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公开(公告)号：US08414716B2
公开(公告)日：2013-04-09
申请号：US13319600
申请日：2010-05-13
申请人： Yoshihiro Serizawa , Yasuhiro Nishiyama , Shigeru Ogawa , Shinji Ida , Hitoshi Nikaidoh , Isao Yoshii , Noriyuki Hishinuma , Tetsuo Kishimoto , Nobuhiro Takagi
发明人： Yoshihiro Serizawa , Yasuhiro Nishiyama , Shigeru Ogawa , Shinji Ida , Hitoshi Nikaidoh , Isao Yoshii , Noriyuki Hishinuma , Tetsuo Kishimoto , Nobuhiro Takagi
IPC分类号： C21D8/02
CPC分类号： B21B45/0218
摘要： The present invention provides a method of cooling a hot-rolled steel strip which has passed through a finishing rolling, including: cooling the hot-rolled steel strip from a first temperature of not lower than 600° C. and not higher than 650° C. to a second temperature of not higher than 450° C. with cooling water having the water amount density of not lower than 4 m3/m2/min and not higher than 10 m3/m2/min, wherein with respect to the area of the target surface, the area of a portion where a plurality of spray jets of the cooling water directly strikes on the target surface is at least 80%.
摘要翻译： 本发明提供一种通过精轧的冷轧钢带的冷却方法，其特征在于，包括：从不低于600℃且不高于650℃的第一温度冷却所述热轧钢带 至不超过450℃的第二温度，其中水量密度不低于4m 3 / m 2 / min且不高于10m 3 / m 2 / min的冷却水，其中相对于 目标表面，冷却水的多个喷射射流直接撞击目标表面的部分的面积为至少80％。
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公开(公告)号：US08920708B2
公开(公告)日：2014-12-30
申请号：US13584973
申请日：2012-08-14
申请人： Yoshihiro Serizawa , Yasuhiro Nishiyama , Shigeru Ogawa , Shinji Ida , Hitoshi Nikaidoh , Isao Yoshii , Noriyuki Hishinuma , Tetsuo Kishimoto , Nobuhiro Takagi
发明人： Yoshihiro Serizawa , Yasuhiro Nishiyama , Shigeru Ogawa , Shinji Ida , Hitoshi Nikaidoh , Isao Yoshii , Noriyuki Hishinuma , Tetsuo Kishimoto , Nobuhiro Takagi
CPC分类号： B21B45/0218
摘要： The present invention provides a method of cooling a hot-rolled steel strip which has passed through a finishing rolling, including: cooling the hot-rolled steel strip from a first temperature of not lower than 600° C. and not higher than 650° C. to a second temperature of not higher than 450° C. with cooling water having the water amount density of not lower than 4 m3/m2/min and not higher than 10 m3/m2/min, wherein with respect to the area of the target surface, the area of a portion where a plurality of spray jets of the cooling water directly strikes on the target surface is at least 80%.
摘要翻译： 本发明提供一种通过精轧的冷轧钢带的冷却方法，其特征在于，包括：将所述热轧钢带从不低于600℃且不高于650℃的第一温度冷却 至不超过450℃的第二温度，其中水量密度不低于4m 3 / m 2 / min且不高于10m 3 / m 2 / min的冷却水，其中相对于 目标表面，冷却水的多个喷射射流直接撞击目标表面的部分的面积为至少80％。
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