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1. 发明授权

US08048237B2 Ultra soft high carbon hot rolled steel sheet and method for manufacturing same 有权
标题翻译：超软高碳热轧钢板及其制造方法
公开(公告)号：US08048237B2
公开(公告)日：2011-11-01
申请号：US12294639
申请日：2007-02-26
申请人： Hideyuki Kimura , Takeshi Fujita , Nobuyuki Nakamura , Naoya Aoki , Masato Sasaki , Satoshi Ueoka , Shunji Iizuka
发明人： Hideyuki Kimura , Takeshi Fujita , Nobuyuki Nakamura , Naoya Aoki , Masato Sasaki , Satoshi Ueoka , Shunji Iizuka
IPC分类号： C22C38/00 , C22C38/22 , C22C38/18 , C22C38/12 , C22C38/14 , C21D8/02 , C21D8/00 , C21D6/00
CPC分类号： B21B3/00 , C21D9/46 , C22C38/02 , C22C38/04
摘要： An ultra soft high carbon hot-rolled steel sheet has excellent workability. The steel sheet is a high carbon hot-rolled steel sheet containing 0.2 to 0.7% C, and has a structure in which mean grain size of ferrite is 20 μm or larger, the volume percentage of ferrite grains having 10 μm or smaller size is 20% or less, mean diameter of carbide is in a range from 0.10 μm to smaller than 2.0 μm, the percentage of carbide grains having 5 or more of aspect ratio is 15% or less, and the contact ratio of carbide is 20% or less.
摘要翻译：超柔软的高碳热轧钢板的加工性优异。该钢板是含有0.2〜0.7％C的高碳热轧钢板，其铁素体的平均粒径为20μm以上的结构，具有10μm以下的铁素体晶粒的体积百分比为20 ％以下，碳化物的平均直径为0.10μm以上且小于2.0μm，纵横比为5以上的碳化物的比例为15％以下，碳化物的接触率为20％以下。

2. 发明申请

US20100282376A1 ULTRA SOFT HIGH CARBON HOT ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING SAME 有权
标题翻译：超高温碳热轧钢板及其制造方法
公开(公告)号：US20100282376A1
公开(公告)日：2010-11-11
申请号：US12294639
申请日：2007-02-26
申请人： Hideyuki Kimura , Takeshi Fujita , Nobuyuki Nakamura , Naoya Aoki , Masato Sasaki , Satoshi Ueoka , Shunji Iizuka
发明人： Hideyuki Kimura , Takeshi Fujita , Nobuyuki Nakamura , Naoya Aoki , Masato Sasaki , Satoshi Ueoka , Shunji Iizuka
IPC分类号： C21D8/02 , C22C38/00 , C22C38/32
CPC分类号： B21B3/00 , C21D9/46 , C22C38/02 , C22C38/04
摘要： An ultra soft high carbon hot-rolled steel sheet has excellent workability. The steel sheet is a high carbon hot-rolled steel sheet containing 0.2 to 0.7% C, and has a structure in which mean grain size of ferrite is 20 μm or larger, the volume percentage of ferrite grains having 10 μm or smaller size is 20% or less, mean diameter of carbide is in a range from 0.10 μm to smaller than 2.0 μm, the percentage of carbide grains having 5 or more of aspect ratio is 15% or less, and the contact ratio of carbide is 20% or less.
摘要翻译：超柔软的高碳热轧钢板的加工性优异。该钢板是含有0.2〜0.7％C的高碳热轧钢板，其铁素体的平均粒径为20μm以上的结构，具有10μm以下的铁素体晶粒的体积百分比为20 ％以下，碳化物的平均直径为0.10μm以上且小于2.0μm，纵横比为5以上的碳化物的比例为15％以下，碳化物的接触率为20％以下。

3. 发明授权

US07909950B2 Method for manufacturing an ultra soft high carbon hot-rolled steel sheet 失效
标题翻译：超软高碳热轧钢板的制造方法
公开(公告)号：US07909950B2
公开(公告)日：2011-03-22
申请号：US11919964
申请日：2006-09-19
申请人： Hideyuki Kimura , Takeshi Fujita , Nobuyuki Nakamura , Satoshi Ueoka , Naoya Aoki , Kenichi Mitsuzuka
发明人： Hideyuki Kimura , Takeshi Fujita , Nobuyuki Nakamura , Satoshi Ueoka , Naoya Aoki , Kenichi Mitsuzuka
IPC分类号： C21D8/00
CPC分类号： C22C38/02 , C21D1/32 , C21D6/008 , C21D8/0263 , C21D9/46 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/32
摘要： The present invention provides an ultra soft high carbon hot-rolled steel sheet. The ultra soft high carbon hot-rolled steel sheet contains 0.2% to 0.7% of C, 0.01% to 1.0% of Si, 0.1% to 1.0% of Mn, 0.03% or less of P, 0.035% or less of S, 0.08% or less of Al, 0.01% or less of N, and the balance being Fe and incidental impurities and further contains 0.0010% to 0.0050% of B and 0.05% to 0.30% of Cr in some cases. In the texture of the steel sheet, an average ferrite grain diameter is 20 μm or more, a volume ratio of ferrite grains having a grain diameter of 10 μm or more is 80% or more, and an average carbide grain diameter is in the range of 0.10 to less than 2.0 μm. In addition, the steel sheet is manufactured by the steps, after rough rolling, performing finish rolling at a reduction ratio of 10% or more and at a finish temperature of (Ar3−20° C.) or more in a final pass, then performing first cooling within 2 seconds after the finish rolling to a cooling stop temperature of 600° C. or less at a cooling rate of more than 120° C./sec, then performing second cooling so that the steel thus processed is held at 600° C. or less, then performing coiling at 580° C. or less, followed by pickling, and then performing spheroidizing annealing at a temperature in the range of 680° C. to the Ac1 transformation point.
摘要翻译：本发明提供一种超软质高碳热轧钢板。超软质高碳热轧钢板含有C：0.2〜0.7％，Si：0.01〜1.0％，Mn：0.1〜1.0％，P：0.03％以下，S：0.035％以下，0.08以下 Al以下，Al：0.01％以下，余量为Fe和附带杂质，在某些情况下还含有0.0010〜0.0050％的B和0.05〜0.30％的Cr。在钢板的织构中，平均铁素体晶粒直径为20μm以上，粒径为10μm以上的铁素体晶粒的体积比为80％以上，平均碳化物粒径为为0.10〜小于2.0μm。另外，在粗轧后，在最终通过时以10％以上的还原率和最终温度（Ar 3〜20℃）以上的精轧进行精轧，然后，在精轧后2秒内进行冷却至冷却停止温度600℃以下，冷却速度大于120℃/秒，然后进行第二次冷却，使被处理钢被保持在600℃ ℃以下，然后在580℃以下进行卷取，然后酸洗，然后在680℃的温度下进行Ac1相变点的球化退火。

4. 发明申请

US20090065106A1 Ultra soft high carbon hot-rolled steel sheets and manufacturing method thereof 失效
标题翻译：超软高碳热轧钢板及其制造方法
公开(公告)号：US20090065106A1
公开(公告)日：2009-03-12
申请号：US11919964
申请日：2006-09-19
申请人： Hideyuki Kimura , Takeshi Fujita , Nobuyuki Nakamura , Satoshi Ueoka , Naoya Aoki , Kenichi Mitsuzuka
发明人： Hideyuki Kimura , Takeshi Fujita , Nobuyuki Nakamura , Satoshi Ueoka , Naoya Aoki , Kenichi Mitsuzuka
IPC分类号： C21D8/02 , C22C38/00 , C21D6/02
CPC分类号： C22C38/02 , C21D1/32 , C21D6/008 , C21D8/0263 , C21D9/46 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/32
摘要： The present invention provides an ultra soft high carbon hot-rolled steel sheet. The ultra soft high carbon hot-rolled steel sheet contains 0.2% to 0.7% of C, 0.01% to 1.0% of Si, 0.1% to 1.0% of Mn, 0.03% or less of P, 0.035% or less of S, 0.08% or less of Al, 0.01% or less of N, and the balance being Fe and incidental impurities and further contains 0.0010% to 0.0050% of B and 0.05% to 0.30% of Cr in some cases. In the texture of the steel sheet, an average ferrite grain diameter is 20 μm or more, a volume ratio of ferrite grains having a grain diameter of 10 μm or more is 80% or more, and an average carbide grain diameter is in the range of 0.10 to less than 2.0 μm. In addition, the steel sheet is manufactured by the steps, after rough rolling, performing finish rolling at a reduction ratio of 10% or more and at a finish temperature of (Ar3−20° C.) or more in a final pass, then performing first cooling within 2 seconds after the finish rolling to a cooling stop temperature of 600° C. or less at a cooling rate of more than 120° C./sec, then performing second cooling so that the steel thus processed is held at 600° C. or less, then performing coiling at 580° C. or less, followed by pickling, and then performing spheroidizing annealing at a temperature in the range of 680° C. to the Ac1 transformation point.
摘要翻译：本发明提供一种超软质高碳热轧钢板。超软质高碳热轧钢板含有C：0.2〜0.7％，Si：0.01〜1.0％，Mn：0.1〜1.0％，P：0.03％以下，S：0.035％以下，0.08以下 Al以下，Al：0.01％以下，余量为Fe和附带杂质，在某些情况下还含有0.0010〜0.0050％的B和0.05〜0.30％的Cr。在钢板的织构中，平均铁素体晶粒直径为20μm以上，粒径为10μm以上的铁素体晶粒的体积比为80％以上，平均碳化物粒径为为0.10〜小于2.0μm。另外，在粗轧后，在最终通过时以10％以上的还原率和最终温度（Ar 3〜20℃）以上的精轧进行精轧，然后，在精轧后2秒内进行冷却至冷却停止温度600℃以下，冷却速度大于120℃/秒，然后进行第二次冷却，使被处理钢被保持在600℃ ℃以下，然后在580℃以下进行卷取，然后酸洗，然后在680℃的温度下进行Ac1相变点的球化退火。

5. 发明授权

US08318080B2 Device and method for cooling hot strip 有权
标题翻译：用于冷却热带的装置和方法
公开(公告)号：US08318080B2
公开(公告)日：2012-11-27
申请号：US12083043
申请日：2006-11-09
申请人： Satoshi Ueoka , Akio Fujibayashi , Naoki Nakata , Takashi Kuroki , Shougo Tomita
发明人： Satoshi Ueoka , Akio Fujibayashi , Naoki Nakata , Takashi Kuroki , Shougo Tomita
IPC分类号： C21D1/62 , B21B45/02 , B21B43/00
CPC分类号： B21B45/0218 , B21B45/0233
摘要： A device and a method for cooling a hot strip capable of uniformly cooling the hot-rolled steel strip from the leading end to the trailing end thereof during cooling of the steel strip using cooling water are provided. A cooling device 10 includes a plurality of tubular nozzles 15 inclined so as to eject rod-like flows of cooling water to a steel strip 12 at an ejecting angle θ in a traveling direction of the steel strip 12 and a pinch roller 11 disposed downstream of the tubular nozzles, the steel strip 12 to be nipped between the pinch roller 11 and a table roller 8.
摘要翻译：提供了一种用于冷却在使用冷却水冷却钢带期间能够使热轧钢带从其前端到后端均匀地冷却的热带的装置和方法。冷却装置10包括多个管状喷嘴15，其以倾斜的角度喷射棒状冷却水流到钢带12; 在钢带12的行进方向和设置在管状喷嘴下游的夹送辊11的钢带12被夹在夹送辊11和台辊8之间。

6. 发明申请

US20120103052A1 HOT ROLLED STEEL SHEET COOLING APPARATUS 有权
标题翻译：热轧钢板冷却装置
公开(公告)号：US20120103052A1
公开(公告)日：2012-05-03
申请号：US13260870
申请日：2010-03-25
申请人： Satoshi Ueoka , Hirokazu Sugihara , Takashi Kuroki , Nobuo Nishiura , Tsutomu Sugiyama
发明人： Satoshi Ueoka , Hirokazu Sugihara , Takashi Kuroki , Nobuo Nishiura , Tsutomu Sugiyama
IPC分类号： B21B45/02
CPC分类号： B21B45/0233 , B21B45/0218
摘要： A hot rolled steel sheet cooling apparatus includes a gradual cooling header 2 including a rod-like cooling water nozzle 3 for gradual cooling and a rapid cooling header 4 including a rod-like cooling water nozzle 5 for rapid cooling such that the headers constitute a cooling unit 9. The cooling unit 9 includes an elevating unit 7 capable of moving upward and downward in unison with the cooling unit. In cooling the upper surface of a hot rolled steel sheet (hot rolled steel strip or steel plate), uniform and stable cooling is achieved while both of high cooling rate and low cooling rate are ensured.
摘要翻译：热轧钢板冷却装置包括逐渐冷却集管2，其包括用于逐渐冷却的棒状冷却水喷嘴3和包括用于快速冷却的棒状冷却水喷嘴5的快速冷却集管4，使得集管构成冷却冷却单元9包括能够与冷却单元一致地向上和向下移动的升降单元7。在冷轧热轧钢板（热轧钢带或钢板）的上表面时，能够确保高冷却速度和低冷却速度的均匀稳定的冷却。

7. 发明申请

US20090019907A1 Hot-Strip Cooling Device and Cooling Method 有权
标题翻译：热带冷却装置及冷却方式
公开(公告)号：US20090019907A1
公开(公告)日：2009-01-22
申请号：US12224195
申请日：2006-11-09
申请人： Satoshi Ueoka , Akio Fujibayashi , Noaki Nakata , Takashi Kuroki , Shougo Tomita
发明人： Satoshi Ueoka , Akio Fujibayashi , Noaki Nakata , Takashi Kuroki , Shougo Tomita
IPC分类号： B21B27/06
CPC分类号： B21B45/0218 , B21B45/0233 , B21B45/0281
摘要： A hot-strip cooling device and a cooling method are provided wherein uniform cooling of a hot-rolled steel strip using coolant is possible from the leading end to the trailing end of the steel strip. A cooling device (10) includes a plurality of round nozzles (15) disposed obliquely in such a manner as to eject rod-like flows of coolant at an ejection angle θ toward the upstream side in a direction in which a steel strip (12) travels, and a pinch roll (11) disposed on the upstream side with respect to the round nozzles (15) and configured to pinch the steel strip (12) in combination with a roller table (8).
摘要翻译：提供一种热带冷却装置和冷却方法，其中使用冷却剂的热轧钢带的均匀冷却可以从钢带的前端到后端。一种冷却装置（10）包括多个圆形喷嘴（15），其倾斜地设置成沿喷射角度θ朝向上游侧的棒状流向喷射钢板（12）的方向排出，行进，以及相对于圆形喷嘴（15）设置在上游侧的夹送辊（11），并且构造成与滚轮台（8）组合地夹紧钢带（12）。

8. 发明授权

US08646301B2 Method for manufacturing high strength hot rolled steel sheet 有权
标题翻译：高强度热轧钢板的制造方法
公开(公告)号：US08646301B2
公开(公告)日：2014-02-11
申请号：US12674281
申请日：2008-08-20
申请人： Takeshi Yokota , Kazuhiro Seto , Satoshi Ueoka , Nobuo Nishiura , Yoichi Tominaga
发明人： Takeshi Yokota , Kazuhiro Seto , Satoshi Ueoka , Nobuo Nishiura , Yoichi Tominaga
IPC分类号： B21B27/06 , B21D31/00
CPC分类号： C22C38/02 , C21D1/20 , C21D8/0426 , C21D8/0463 , C21D9/48 , C21D2211/002 , C21D2211/005 , C22C38/04
摘要： A method for manufacturing a high strength hot rolled steel sheet includes heating a slab to a temperature in the range of 1150 to 1300° C.; hot rolling the slab with a finishing rolling temperature being in the range of 800 to 1000° C.; cooling the steel sheet at a mean cooling rate of 30° C./s or higher to a cooling termination temperature in the range of 525 to 625° C.; suspending cooling for a time period in the range of 3 to 10 seconds; cooling the steel sheet in such a manner that cooling of the steel sheet is nucleate boiling; and coiling the steel sheet at a temperature in the range of 400 to 550° C.
摘要翻译：制造高强度热轧钢板的方法包括将板坯加热到1150-1300℃的温度范围内。热轧板坯，精轧温度在800〜1000℃的范围内。以30℃/ s以上的平均冷却速度将钢板冷却至525〜625℃的冷却终止温度。暂停冷却一段时间在3到10秒的范围内; 以钢板的冷却成核沸腾的方式冷却钢板; 并在400〜550℃的范围内卷取钢板。

9. 发明授权

US08506879B2 Method for cooling hot strip 有权
标题翻译：冷热条的冷却方法
公开(公告)号：US08506879B2
公开(公告)日：2013-08-13
申请号：US13565114
申请日：2012-08-02
申请人： Satoshi Ueoka , Akio Fujibayashi , Naoki Nakata , Takashi Kuroki , Shougo Tomita
发明人： Satoshi Ueoka , Akio Fujibayashi , Naoki Nakata , Takashi Kuroki , Shougo Tomita
IPC分类号： C21D9/54 , C21D1/00 , C21D9/00 , C21B7/10 , B21B27/06 , B21D31/00
CPC分类号： B21B45/0218 , B21B45/0233
摘要： A method for cooling a hot strip conveyed on a run-out table after finishing, including ejecting rod-like flows of cooling water from nozzles to the upper surface of the steel strip such that the flows are inclined toward a traveling direction of the steel strip, and draining the cooling water using draining means disposed downstream of the nozzles.
摘要翻译：一种在精加工之后冷却在走出台上传送的热带的方法，包括将喷嘴的棒状冷却水流从钢带排出到钢带的上表面，使得流向钢带的行进方向倾斜并且使用布置在喷嘴下游的排水装置排出冷却水。

10. 发明授权

US08051695B2 Method for cooling hot strip 有权
标题翻译：冷热条的冷却方法
公开(公告)号：US08051695B2
公开(公告)日：2011-11-08
申请号：US12311536
申请日：2007-10-25
申请人： Satoshi Ueoka , Takashi Kuroki , Nobuo Nishiura
发明人： Satoshi Ueoka , Takashi Kuroki , Nobuo Nishiura
IPC分类号： B21D37/16 , B21B27/06
CPC分类号： B21B45/0218 , C21D8/0263 , C21D9/46 , C21D9/52 , C21D9/573 , C21D11/005
摘要： The method for cooling a hot strip which is obtained after a hot rolling process to the temperature range of 500° or less. Cooling water is brought into contact with the hot strip. The method includes a first cooling step and a subsequent second cooling step. Cooling is stopped at a strip temperature that is higher than a transition boiling initiation temperature in the first cooling step, and the cooling is conducted using the cooling water having a water flow rate that causes nucleate boiling in the subsequent second cooling step. Entering the temperature range of transition boiling can be completely prevented to avoid thermal instability in cooling resulting from the transition boiling, and the temperature variation of the strip after cooling is controlled to be small while the cooling end temperature can be precisely controlled.
摘要翻译：将热轧后的热轧钢板冷却至500℃以下的温度范围的方法。冷却水与热带接触。该方法包括第一冷却步骤和随后的第二冷却步骤。在第一冷却步骤中，在高于过渡沸腾开始温度的条带温度下停止冷却，并且在随后的第二冷却步骤中使用具有导致核沸腾的水流速的冷却水进行冷却。可以完全防止过渡沸腾的温度范围，以避免过渡沸腾引起的冷却导致热不稳定，并且可以精确地控制冷却结束温度时冷却后的条带的温度变化小。

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