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1. 发明授权

US06632295B2 High tensile strength hot-rolled steel sheet and method for manufacturing the same 有权
标题翻译：高强度热轧钢板及其制造方法
公开(公告)号：US06632295B2
公开(公告)日：2003-10-14
申请号：US09864473
申请日：2001-05-24
申请人： Hiroshi Nakata , Tadashi Inoue , Hiroyasu Kikuchi , Sadanori Imada , Akira Hiura , Takeshi Nakahara , Satoshi Ishijima , Yoshimasa Funakawa , Toru Inazumi
发明人： Hiroshi Nakata , Tadashi Inoue , Hiroyasu Kikuchi , Sadanori Imada , Akira Hiura , Takeshi Nakahara , Satoshi Ishijima , Yoshimasa Funakawa , Toru Inazumi
IPC分类号： C21D802
CPC分类号： H01F1/16 , C21D8/0226 , C21D8/1222 , C21D8/1261 , C22C38/008 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/16 , Y02P10/212
摘要： A high tensile strength hot-rolled steel sheet comprises 0.04 to 0.09% C, 0.1% or less Si, 0.5 to 1.5% Mn, 0.02% or less P, 0.01% or less S, 0.1% or less Al, 0.001 to 0.008% N, and 0.01 to 0.15% Ti, by mass %, the content of ingredient there each satisfying the equation (1), and the ferritic grain size &agr; (&mgr;m) satisfying the equation (2): [C]+7×[Si]+0.1×[Mn]+[P]+14×[S]+1.75×[Al] +23×[N]+[Ti]+18×[O]+7×[Cu]+18×[Sn]+7×[Mo]+ 1.7×[Cr]+70×[B]+7×[Ca]+14×[Zr]+14×[V]+7×[Nb] ≦2 (1) 3≦&agr;≦60×[Ti]+8 (2) where, [X] denotes the content (mass %) of element X. This hot-rolled steel sheet has excellent workability, high magnetic permeability and high magnetic flux density in a strong magnetic field, and has 490 MPa or higher strength, and is suitable for large electric equipment such as a rotor of generator.
摘要翻译：高拉伸强度热轧钢板含有0.04〜0.09％的C，0.1％以下的Si，0.5〜1.5％的Mn，0.02％以下的P，0.01％以下的S，0.1％以下的Al，0.001〜0.008％ N，0.01〜0.15％的Ti，按质量％计，各成分的含量满足式（1），满足式（2）的铁素体粒径α（母）：其中，[X ]表示元件X的含量（质量％）。这种热轧钢板在强磁场中具有优异的可加工性，高磁导率和高磁通密度，并且具有490MPa或更高的强度，并且适用于大电设备如发电机转子。

2. 发明申请

US20050000606A1 Method for manufacturing a steel sheet 审中-公开
标题翻译：钢板的制造方法
公开(公告)号：US20050000606A1
公开(公告)日：2005-01-06
申请号：US10899642
申请日：2004-07-26
申请人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Yoshimasa Funakawa , Hiroshi Nakata , Sadanori Imada , Toru Inazumi
发明人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Yoshimasa Funakawa , Hiroshi Nakata , Sadanori Imada , Toru Inazumi
IPC分类号： C21D8/02
CPC分类号： C21D8/0226 , C21D8/021
摘要： A method for manufacturing a steel sheet comprising rough-rolling a steel consisting essentially of 0.04 to 0.12 weight % C, 0.25 to 2 weight % Si, 0.5 to 2.5 weight % Mn, 0.1 weight % or less Al, and a balance of substantially Fe and inevitable impurities to form a sheet bar; finish-rolling the sheet bar at a rolling end temperature of the Ar3 transformation point or more; primary-cooling the finish-rolled steel sheet within 1 second after completing the finish-rolling at a cooling speed of higher than 200° C./sec through a cooling range where-the difference between the start temperature of the cooling and the end temperature of the cooling is 100° C. to below 250° C.; slowly cooling the primary-cooled steel at a cooling speed of 10° C./sec or less, for 2 seconds to less than 20 seconds, at a temperature of 580° C. to 720° C.; and coiling the slowly cooled steel sheet at a temperature of 400° C. to below 540° C.
摘要翻译：一种钢板的制造方法，其特征在于，粗轧的钢基本上由0.04〜0.12重量％的C，0.25〜2重量％的Si，0.5〜2.5重量％的Mn，0.1重量％以下的Al和余量的Fe 和不可避免的杂质形成片材; 在Ar3转化点的滚动终止温度以上进行精轧，在冷却速度高于200℃/秒的冷却速度下完成精轧后的1秒内，通过冷却范围（冷却开始温度与终止温度之间的差）的冷却是100℃至低于250℃。在580℃至720℃的温度下以10℃/秒或更低的冷却速度缓慢冷却主冷却器2秒至小于20秒; 并将缓慢冷却的钢板在400℃的温度下卷取至540℃以下。

3. 发明授权

US06818079B2 Method for manufacturing a steel sheet 有权
标题翻译：钢板的制造方法
公开(公告)号：US06818079B2
公开(公告)日：2004-11-16
申请号：US10445631
申请日：2003-05-27
申请人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Yoshimasa Funakawa , Hiroshi Nakata , Sadanori Imada , Toru Inazumi
发明人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Yoshimasa Funakawa , Hiroshi Nakata , Sadanori Imada , Toru Inazumi
IPC分类号： C21D800
CPC分类号： C21D8/0226 , C21D8/021
摘要： A method for manufacturing a steel sheet comprising continuously casting a steel containing 0.04 to 0.2 wt. % C, 0.25 to 2 wt. % Si, 0.5 to 2.5 wt. % Mn, and 0.1 wt. % or less Al to form a slab; hot-rolling by rough-rolling the slab to form a sheet bar and finish-rolling the sheet bar with a reduction in thickness at the final stand of less than 30%, the finish-rolling being completed at a temperature from the Ar3 transformation point to the Ar3 transformation point +60° C.; primary-cooling the hot-rolled steel sheet, the primary cooling being started within 1 second after the completion of hot-rolling and conducting the cooling at a cooling speed of higher than 200° C./sec down to a temperature of Ar3 −30° C. to the Ar1 transformation point; slow cooling or air-cooling the primary-cooled steel sheet at a temperature of the Ar3 transformation point to the Ar1 transformation point at 10° C./sec or less for 2 seconds or more; secondary-cooling the steel sheet after the slow cooling or the air-cooling at 30° C./sec or more; and coiling the secondary-cooled steel sheet at 300° C. or less.
摘要翻译：一种钢板的制造方法，其特征在于，连续铸造含有0.04〜0.2重量％％C，0.25〜2重量％％Si，0.5〜2.5wt。％Mn和0.1wt。％以下的Al以形成板坯; 通过对板坯进行粗轧以形成板坯进行热轧，并且在最终机架上以厚度减小的方式对板坯进行精轧，其退火温度在Ar3相变点到Ar3转化点+ 60°C。对热轧钢板进行一次冷却，一次冷却在热轧结束后的1秒内开始，以高于200℃/秒的冷却速度进行冷却至Ar3〜 °C至Ar1转化点; 在Ar 3相变点的温度下在10℃/秒以下缓慢冷却或空气冷却2秒以上的主冷却钢板; 在缓慢冷却或空气冷却30℃/秒以上之后对钢板进行二次冷却; 并且在300℃以下卷取二次冷却钢板。

4. 发明授权

US06652670B2 Steel sheet and method for manufacturing the same 有权
标题翻译：钢板及其制造方法
公开(公告)号：US06652670B2
公开(公告)日：2003-11-25
申请号：US09837435
申请日：2001-04-18
申请人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Yasuhide Ishiguro , Sadanori Imada , Toru Inazumi
发明人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Yasuhide Ishiguro , Sadanori Imada , Toru Inazumi
IPC分类号： C21D802
CPC分类号： C21D9/48 , C21D1/19 , C21D8/0226 , C21D8/0426 , C21D8/0463 , C21D2211/005 , C21D2211/009 , C22C38/001 , C22C38/02 , C22C38/04
摘要： The method for manufacturing steel sheet comprises the steps of: rough-rolling to form a sheet bar; finish-rolling the sheet bar to form a steel strip; applying primary cooling and secondary cooling to the finish-rolled steel strip; and coiling the secondary-cooled steel strip. The primary cooling is conducted at cooling speeds of 120° C./sec or more down to the temperatures of from 500 to 800° C. The secondary cooling is conducted at cooling speeds of less than 60° C./sec.
摘要翻译：制造钢板的方法包括以下步骤：粗轧以形成板坯; 对板材进行精轧，形成钢带; 对精轧钢带进行一次冷却和二次冷却; 并卷取二次冷却钢带。一次冷却在120℃/秒以上的冷却速度下进行至500〜800℃的温度。二次冷却以小于60℃/秒的冷却速度进行。

5. 发明申请

US20060065329A1 High strength steel sheet and method for manufacturing the same 审中-公开
标题翻译：高强度钢板及其制造方法
公开(公告)号：US20060065329A1
公开(公告)日：2006-03-30
申请号：US11271428
申请日：2005-11-10
申请人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Sadanori Imada , Takayuki Odake , Yasunobu Nagataki , Toru Inazumi
发明人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Sadanori Imada , Takayuki Odake , Yasunobu Nagataki , Toru Inazumi
IPC分类号： C23C2/28
CPC分类号： C21D8/0226 , C21D8/0236 , C21D8/0263 , C22C38/008 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/24 , C23C2/02
摘要： The present invention relates to a high strength steel sheet consisting essentially of 0.04 to 0.1% C, 0.5% or less Si, 0.5 to 2% Mn, 0.05% or less P, 0.005% or less O, 0.005% or less S, by weight, having 10 μm or less of average ferritic grain size, and 20 mm/mm2 or less of generation frequency A, which generation frequency A is defined as the total length of a banded secondary phase structure observed per 1 mm2 of steel sheet cross section along the rolling direction thereof. The steel sheet is manufactured by, for example, a method comprising the steps of: hot-rolling a continuously cast slab having the composition described above at temperatures of Ar3 transformation point or above directly or after reheating thereof; and cooling the hot-rolled steel sheet within 2 seconds down to the temperatures of from 600 to 750° C. at cooling speeds of from 100 to 2,000° C./sec, followed by coiling the cooled steel sheet at temperatures of from 450 to 650° C. The present invention provides a high strength steel sheet having strengths of 340 MPa or more and having excellent stretch flanging performance, ductility, and shock resistance, providing a sufficient coil shape with good surface properties, even when hot dip zinc-coating is applied.
摘要翻译：高强度钢板本发明涉及一种高强度钢板，主要由以下组成的高强度钢板：基本上由Si：0.5〜0.1％，Si：0.5〜2％，Mn：0.05％以下，P：0.005％以下，O：0.005％以下，S：平均铁素体晶粒尺寸为10μm以下，发生频率A为20mm / mm 2以下的发生频率A，将发生频率A定义为观察到的带状二相结构的总长度每1mm 2钢板横截面沿其轧制方向。钢板通过例如以下方法制造：包括以下步骤：在Ar 3相变点或更高的温度下直接或重新加热上述具有上述组成的连续铸造板坯 ; 并在200〜2000℃/秒的冷却速度下，在2秒钟内将热轧钢板冷却至600〜750℃的温度，然后将冷却后的钢板在450〜 650℃。本发明提供强度为340MPa以上且具有优异的拉伸凸缘性能，延展性和抗冲击性的高强度钢板，提供具有良好表面性能的足够的线圈形状，即使当热浸锌涂层被申请;被应用。

6. 发明授权

US06554925B2 Method for manufacturing cold-rolled steel sheet 有权
标题翻译：冷轧钢板的制造方法
公开(公告)号：US06554925B2
公开(公告)日：2003-04-29
申请号：US09821609
申请日：2001-03-29
申请人： Tadashi Inoue , Yasuhide Ishiguro , Yoichi Motoyashiki , Sadanori Imada , Toru Inazumi
发明人： Tadashi Inoue , Yasuhide Ishiguro , Yoichi Motoyashiki , Sadanori Imada , Toru Inazumi
IPC分类号： C21D804
CPC分类号： C21D8/0426 , C21D1/84 , C21D8/0226 , C21D8/041 , C21D8/0463 , C22C38/004 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/16
摘要： The method for manufacturing cold-rolled steel sheet comprises the steps of: rough-rolling a slab using a rough-rolling unit; finish-rolling the sheet bar using a continuous hot finishing-rolling mill; cooling the hot-rolled steel strip on a runout table; coiling thus cooled hot-rolled steel strip; and applying picking, cold-rolling the hot-rolled steel strip, and final annealing to the cold-rolled steel strip.
摘要翻译：制造冷轧钢板的方法包括以下步骤：使用粗轧单元对板坯进行粗轧; 使用连续热精轧机对板材进行精轧; 冷却热轧带钢在跳板上; 卷取如此冷却的热轧钢带; 并对冷轧钢带进行采摘，冷轧，对冷轧钢带进行最终退火。

7. 发明授权

US06623573B2 Steel sheet and method for manufacturing the same 有权
标题翻译：钢板及其制造方法
公开(公告)号：US06623573B2
公开(公告)日：2003-09-23
申请号：US09838017
申请日：2001-04-19
申请人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Sadanori Imada
发明人： Tadashi Inoue , Yoichi Motoyashiki , Hiroyasu Kikuchi , Sadanori Imada
IPC分类号： C21D800
CPC分类号： C21D8/0226 , C21D8/021
摘要： The method for manufacturing steel sheet comprises the steps of: forming a sheet bar; forming a steel strip; primary-cooling; air-cooling; secondary-cooling; and coiling. The sheet bar is finish-rolled at finish temperatures of (Ar3 transformation point −20° C.) or more. The primary cooling cools the finish-rolled steel strip at cooling speeds of more than 120° C./sec down to the temperatures ranging from 500 to 800° C.
摘要翻译：制造钢板的方法包括以下步骤：形成板坯; 形成钢带; 一次冷却; 空冷; 二次冷却和卷取。片材在（Ar3相变点-20℃）以上的最终温度下进行精轧。主冷却冷却速度高于120℃/秒的冷轧钢带至500至800℃的温度。

8. 发明授权

US06663725B2 High strength steel sheet and method for manufacturing the same 有权
标题翻译：高强度钢板及其制造方法
公开(公告)号：US06663725B2
公开(公告)日：2003-12-16
申请号：US09827597
申请日：2001-04-05
申请人： Tadashi Inoue , Hiroyasu Kikuchi , Sadanori Imada , Takayuki Odake
发明人： Tadashi Inoue , Hiroyasu Kikuchi , Sadanori Imada , Takayuki Odake
IPC分类号： C22C3840
CPC分类号： C21D8/0226 , C21D8/0236 , C21D8/0263 , C22C38/008 , C22C38/04 , C22C38/12 , C22C38/14 , C22C38/24 , C23C2/02
摘要： The present invention relates to a high strength steel sheet consisting essentially of 0.04 to 0.1% C, 0.5% or less Si, 0.5 to 2% Mn, 0.05% or less P, 0.005% or less 0, 0.005% or less S, by weight, having 10 &mgr;m or less of average ferritic grain size, and 20 mm/mm2 or less of generation frequency A, which generation frequency A is defined as the total length of a banded secondary phase structure observed per 1 mm2 of steel sheet cross section along the rolling direction thereof. The steel sheet is manufactured by, for example, a method comprising the steps of: hot-rolling a continuously cast slab having the composition described above at temperatures of Ar3 transformation point or above directly or after reheating thereof; and cooling the hot-rolled steel sheet within 2 seconds down to the temperatures of from 600 to 750° C. at cooling speeds of from 100 to 2,000° C./sec, followed by coiling the cooled steel sheet at temperatures of from 450 to 650° C. The present invention provides a high strength steel sheet having strengths of 340 MPa or more and having excellent stretch flanging performance, ductility, and shock resistance, providing a sufficient coil shape with good surface properties, even when hot dip zinc-coating is applied.
摘要翻译：高强度钢板本发明涉及一种高强度钢板，其基本上由以下组成的组成：0.04〜0.1％的C，0.5％以下的Si，0.5〜2％的Mn，0.05％以下的P，0.005％以下的S，0.005％以下的S，平均铁素体晶粒尺寸为10mum以下，发电频率A为20mm / mm 2以下的发电频率A定义为每1mm 2观察到的带状二相结构的总长度 >钢板横截面沿其轧制方向。钢板通过例如以下方法制造：包括以下步骤：在Ar3相变点或更高温度下直接或重新加热后，对具有上述组成的连续铸造板坯进行热轧; 并在200〜2000℃/秒的冷却速度下，在2秒钟内将热轧钢板冷却至600〜750℃的温度，然后将冷却后的钢板在450〜 650℃。本发明提供强度为340MPa以上且具有优异的拉伸凸缘性能，延展性和抗冲击性的高强度钢板，提供具有良好表面性能的足够的线圈形状，即使当热浸锌涂层被申请;被应用。

9. 发明授权

US07556701B2 Method for cooling hot roller steel strip, and method for manufacturing hot rolled steel strip 有权
标题翻译：冷轧钢带冷却方法，热轧钢带的制造方法
公开(公告)号：US07556701B2
公开(公告)日：2009-07-07
申请号：US11607425
申请日：2006-12-01
申请人： Akio Fujibayashi , Sadanori Imada , Yoshimichi Hino , Toru Minote , Yoichi Motoyashiki , Shozo Ikemune
发明人： Akio Fujibayashi , Sadanori Imada , Yoshimichi Hino , Toru Minote , Yoichi Motoyashiki , Shozo Ikemune
IPC分类号： C21D8/00
CPC分类号： C21D1/667 , B21B37/007 , B21B37/68 , B21B39/006 , B21B45/0218 , B21B45/0281 , C21D8/00 , C21D8/04 , C21D9/573
摘要： A method for cooling a hot rolled steel strip including transferring a hot rolled steel strip while ejecting cooling water from a cooling means at a specified ejecting condition; pinching a top end of the hot rolled steel strip by a pinching roll, at the inlet of the cooling means and/or just behind the cooling means and/or at a position on the way of the cooling means; and releasing the hot rolled steel strip sequentially from a pinch roll arranged at an upstream side, concurrently with the arrival of a top end of the steel strip to a tension adding means arranged at a downstream side.
摘要翻译：一种用于冷却热轧钢带的方法，包括在特定喷射条件下从冷却装置喷射冷却水的同时转移热轧钢带; 通过夹持辊，冷却装置的入口和/或刚好在冷却装置的后面和/或在冷却装置的途中夹住热轧钢带的顶端; 并且从设置在上游侧的夹送辊顺序地释放热轧钢带，同时将钢带的顶端到达设置在下游侧的张力添加装置。

10. 发明授权

US07052647B2 Method and apparatus for cooling hot rolled steel strip, and method for manufacturing hot rolled steel strip 有权
标题翻译：冷轧钢带的冷却方法和装置以及热轧钢带的制造方法
公开(公告)号：US07052647B2
公开(公告)日：2006-05-30
申请号：US10793480
申请日：2004-03-03
申请人： Akio Fujibayashi , Sadanori Imada , Yoshimichi Hino , Toru Minote , Yoichi Motoyashiki , Shozo Ikemune
发明人： Akio Fujibayashi , Sadanori Imada , Yoshimichi Hino , Toru Minote , Yoichi Motoyashiki , Shozo Ikemune
IPC分类号： C21D1/62
CPC分类号： C21D1/667 , B21B37/007 , B21B37/68 , B21B39/006 , B21B45/0218 , B21B45/0281 , C21D8/00 , C21D8/04 , C21D9/573
摘要： An apparatus for cooling a hot rolled steel strip comprising a transfer means arranged behind a final finishing mill, the transfer means comprising a plurality of transfer rolls for transferring the steel strip; at least one upper surface cooling means arranged at an upper surface side of the transfer means for cooling the steel strip by ejecting cooling water to an upper surface of the steel strip, the upper surface cooling means being capable of moving freely up and down and having a water breaking means at least at an outlet side of the cooling apparatus and at a position corresponding to the transfer rolls; and at least one lower surface cooling means arranged at a lower surface side of the transfer means relative to the upper surface cooling means and the steel strip to be transferred, for cooling the hot strip by ejecting cooling water at a lower surface of the steel strip.
摘要翻译：一种用于冷却热轧钢带的设备，包括布置在最终精轧机后面的转移装置，所述转移装置包括用于转移钢带的多个转印辊; 至少一个上表面冷却装置，其布置在所述传送装置的上表面侧，用于通过将冷却水喷射到所述钢带的上表面来冷却所述钢带，所述上表面冷却装置能够上下移动并具有破水装置至少在冷却装置的出口侧和对应于转印辊的位置处; 以及至少一个下表面冷却装置，其布置在所述转印装置的下表面侧，相对于所述上表面冷却装置和待转印的钢带，以通过在所述钢带的下表面喷射冷却水来冷却所述热轧带材。

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