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1. 发明专利

JP2009052136A Hot-rolled shaped steel for ships, and method for production of the same 有权
标题翻译：用于船舶的热轧成型钢及其制造方法
公开(公告)号：JP2009052136A
公开(公告)日：2009-03-12
申请号：JP2008178598
申请日：2008-07-09
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KIMURA TATSUKI , SUZUKI SHINICHI , SHIKAUCHI NOBUO , KOBAYASHI KAZUTAKA , SHIOTANI KAZUHIKO
IPC分类号： C22C38/00 , B21B1/09 , B21B1/092 , B21B1/095 , C21D8/00 , C22C38/38 , C22C38/60 , C23F11/00
摘要： PROBLEM TO BE SOLVED: To inexpensively provide a hot-rolled shaped steel for ships, which exhibits excellent corrosion resistance even in a severe corrosive environment, e.g. for ballast tanks of ships, and which has strength to be YP of 315 MPa or above and is used for a longitudinal member (longeron) or the like. SOLUTION: The hot-rolled shaped steel is produced by: heating a steel raw material containing, by mass%, 0.03-0.25% C, 0.05-0.50% Si, 0.1-2.0% Mn, ≤0.025% P, ≤0.01% S, 0.005-0.10% Al, 0.01-1.0% W, ≥0.01% but 3 or below is 10-80% and the rolling finish temperature is (Ar 3 -30°C) to (Ar 3 -180°C); and then standing the rolled steel to cool. The obtained shaped steel has a microstructure comprising both ferrite containing processed ferrite, and pearlite. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了廉价地提供一种用于船舶的热轧成形钢，即使在严酷的腐蚀性环境下也能显示出优异的耐腐蚀性。用于船舶的压载舱，其强度为315MPa或更高的YP，并用于纵向构件（龙门）等。热轧成形钢的制造方法是，以质量％计含有0.03-0.25％C，0.05-0.50％Si，0.1-2.0％Mn，≤0.025％P，≤3.0％的钢原料 0.01％S，0.005-0.10％Al，0.01-1.0％W，≥0.01％，但<0.20％Cr和0.001-0.008％N，温度为1000至1350℃; 对材料进行热轧，使得Ar 3 以下的温度下的累积压下率为10-80％，轧制终轧温度为（Ar 3 -30 ℃）至（Ar 3 -180℃）; 然后站在轧制的钢上冷却。得到的成形钢具有包含含铁素体的铁素体和珠光体的微结构。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2007119857A High toughness steel material with excellent fatigue crack propagation resistance 有权
标题翻译：高韧性钢材，具有优异的耐疲劳裂纹扩展电阻
公开(公告)号：JP2007119857A
公开(公告)日：2007-05-17
申请号：JP2005313856
申请日：2005-10-28
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KIMURA TATSUKI , SUZUKI SHINICHI
IPC分类号： C22C38/00 , C22C38/04 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide a high toughness steel material having excellent fatigue crack propagation resistance.
SOLUTION: The high toughness steel material with excellent fatigue crack propagation resistance has a composition consisting of, by mass, 0.05 to 0.2% C, 0.05 to 0.4% Si, 0.05 to 1% Mn, ≤0.03% P, ≤0.02% S, ≤0.005% N and the balance Fe with inevitable impurities and a structure composed mainly of ferrite having ≤25μm average grain size, and further, the hardness of the ferrite is made to ≤135 Vickers hardness HV. Fatigue crack propagation can hereby be suppressed, and fatigue crack propagation resistance can be improved. Further, this steel material can contain one or more elements among Ca, Mg, Ti, Zr and REM, or one or more elements among Cr, Cu, Ni and Mo, or further Al.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的耐疲劳裂纹扩展性的高韧性钢材。解决方案：具有优异的耐疲劳裂纹扩展性的高韧性钢材料具有质量0.05〜0.2％，Si：0.05〜0.4％，Mn：0.05〜1％，P：≤0.02的组成％S，≤0.005％N，余量为Fe与不可避免的杂质，主要由平均粒径≤25μm的铁素体构成的结构，铁素体的硬度为≤135维氏硬度HV。因此能够抑制疲劳裂纹扩展，能够提高疲劳裂纹扩展性。此外，该钢材可以含有Ca，Mg，Ti，Zr和REM中的一种或多种元素，或Cr，Cu，Ni和Mo中的一种或多种元素，或另外的Al。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006249475A Method for manufacturing rolled h-shaped steel superior in low-temperature toughness 有权
标题翻译：在低温韧性中制造滚压H型钢超导体的方法
公开(公告)号：JP2006249475A
公开(公告)日：2006-09-21
申请号：JP2005065192
申请日：2005-03-09
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KIMURA TATSUKI , HOSHINO TOSHIYUKI
IPC分类号： C21D8/00 , B21B1/088 , B21B3/00 , C22C38/00 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a rolled H-shaped steel superior in low-temperature toughness. SOLUTION: A base material of the steel comprises 0.08-0.18% C, at most 0.6% Si, 1.2-1.8% Mn, at most 0.018% P, at most 0.005% S, 0.010-0.050% Al, 0.005-0.020% Ti, 0.0010-0.0050% N, at most 0.44% carbon equivalent, by mass%, one or more elements of Ca, REM, Mg, Zr, Hf, B, Cu, Ni and Cr, as needed, and the balance Fe with unavoidable impurities. The manufacturing method comprises the steps of: heating the base material at 1,100 to 1,300°C; rolling it at a rolling end temperature of 900°C for a flange, and at an Ar 3 temperature or lower with a cumulative rolling reduction of 20% or more and at a rolling end temperature of 700°C or higher for a web; and acceleration-cooling the flange at a cooling velocity of 1°C/s or higher from the Ar 3 temperature, recuperating it to a temperature between 450 and 700°C, and naturally cooling the web. The manufacturing method also includes hot-rolling the web one or more times while cooling it with water. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：待解决的问题：提供一种制造低温韧性优异的轧制H型钢的方法。钢的基材包括0.08-0.18％C，至多0.6％Si，1.2-1.8％Mn，至多0.018％P，至多0.005％S，0.010-0.050％Al，0.005％根据需要，0.020％Ti，0.0010〜0.0050％N，最多0.44％的碳当量，以质量％计，一种或多种Ca，REM，Mg，Zr，Hf，B，Cu，Ni和Cr的元素，余量 Fe含有不可避免的杂质。该制造方法包括以下步骤：在1100〜1300℃下加热基材; 在900℃的滚动终止温度下对凸缘进行轧制，在Ar 3 温度以下，累积压下率为20％以上，轧制结束温度为700℃ 或更高; 并从Ar 3 温度以1℃/ s以上的冷却速度对法兰进行加速冷却，使其恢复到450-700℃之间的温度，并自然地冷却纤维网。该制造方法还包括将纤维网热水或一次或多次，同时用水冷却。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2006144087A Web thin high strength wide flange shape and its production method 有权
标题翻译： WEB薄型高强度法兰形状及其生产方法
公开(公告)号：JP2006144087A
公开(公告)日：2006-06-08
申请号：JP2004337417
申请日：2004-11-22
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KIMURA TATSUKI , HOSHINO TOSHIYUKI , AOKI HIDEMI , KOBAYASHI HIROSHI
IPC分类号： C22C38/00 , B21B1/088 , C21D8/00 , C21D9/00 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a web thin wide flange shape in which, even if controlled rolling is not performed, the wall thickness of a web is ≤20 mm and a difference in the wall thickness between the web and a flange is also wide, and which has high strength and also has an excellent shape, and to provide its production method. SOLUTION: The web thin high strength wide flange shape produced by hot rolling, and composed of a flange in which the external side is formed of a hard layer with a metallic structure essentially consisting of bainite or tempered martensite, and the internal side is formed of a soft layer with a metallic structure essentially consisting of ferrite, and a web with a mixed metallic structure composed of worked ferrite and pearlite. Further, the method capable of stably producing the web thin high strength wide flange shape is disclosed. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种幅材宽的法兰形状，其中即使不进行受控轧制，幅材的壁厚也不大于20mm，并且幅材与凸缘之间的壁厚差也是宽，具有高强度，也具有优良的形状，并提供其生产方法。解决方案：通过热轧制造的网状薄的高强度宽法兰形状，并且由外部由基本上由贝氏体或回火马氏体组成的金属结构的硬质层形成的凸缘构成，并且内侧由基本上由铁素体组成的金属结构的软层和具有由加工铁素体和珠光体组成的混合金属结构的网构成。此外，公开了能够稳定地制造幅材薄的高强度宽法兰形状的方法。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2007277716A High-strength perlitic rail with excellent delayed-fracture resistance 有权
$High-strength perlitic rail with excellent delayed-fracture resistance$
标题翻译：具有优异延迟抗断裂性能的高强度围岩
公开(公告)号：JP2007277716A
公开(公告)日：2007-10-25
申请号：JP2007068212
申请日：2007-03-16
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： HONJO MINORU , KIMURA TATSUKI , SUZUKI SHINICHI , SHIKAUCHI NOBUO
IPC分类号： C22C38/00 , C21D8/00 , C21D9/04 , C22C38/04 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high-strength perlitic rail which is inexpensive and, despite this, has a tensile strength of 1,200 MPa or higher and excellent delayed-fracture resistance. SOLUTION: The rail contains, in terms of mass%, 0.6-1.0% C, 0.1-1.5% Si, 0.4-2.0% Mn, up to 0.035% P, and 0.0005-0.010% S, the remainder being iron and unavoidable impurities. The rail has a tensile strength of 1,200 MPa or higher. In a lengthwise-direction section of at least the head part of the rail, A-type inclusions have a major-axis dimension of ≤250 μm and the number of A-type inclusions having a major-axis dimension of 1 to 250 μm is 2 of the area examined. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供廉价的高强度珍珠岩轨道，尽管如此，其拉伸强度为1200MPa以上，耐延迟断裂性优异。
解决方案：轨道以质量％计含有0.6-1.0％C，0.1-1.5％Si，0.4-2.0％Mn，至多0.035％P和0.0005-0.010％S，其余为铁和不可避免的杂质。轨道的拉伸强度为1200MPa以上。在至少轨道头部的长度方向截面中，A型夹杂物的长轴尺寸为≤250μm，长轴尺寸为1〜250μm的A型夹杂物的数量为所检查区域<25 / mm 2 。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2007107072A Steel material excellent in fatigue cracking propagation resistance 有权
标题翻译：钢铁材料在疲劳破裂传播阻力方面优秀
公开(公告)号：JP2007107072A
公开(公告)日：2007-04-26
申请号：JP2005301241
申请日：2005-10-17
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KIMURA TATSUKI , SUZUKI SHINICHI , HOSHINO TOSHIYUKI
IPC分类号： C22C38/00 , C21D8/00 , C22C38/06 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide a steel material excellent in a fatigue cracking propagation resistance, suitably as thick plate, shape steel, used for a large sized structure, such as ship, bridge, marine structure, developing the fracture caused by the fatigue cracking developed with fluctuated load.
SOLUTION: This steel material is constituted of a microstructure of a ferrite-pearlite structure having ≥15% volume ratio and the pearlite of ≤5 average aspect ratio and contents by mass% of 0.05-0.20% C, ≤1.0% Si, 0.05-1.2% Mn, ≤0.030% P, ≤0.020% S, 0.001-0.07% Al and further, one or more of 0.05-3.0% Cr, 0.05-1.0% Cu, 0.05-1.0% Ni, 0.01-1.0% Mo and if necessary, one or more of Ti, Nb, V, Ca, REM, Mg, Zr and the balance Fe with inevitable impurities, and ΔT (=5Si+89Mn+11Cr+11Mo+7Cu+20Ni+850Nb+250V) is made to be ≤100.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供耐疲劳裂纹扩展性优异的钢材，适合作为厚板，形状钢，用于船舶，桥梁，海洋结构等大型结构，形成由疲劳裂纹发生负荷波动。解决方案：该钢材由具有≥15体积比的铁素体 - 珠光体组织的组织形成，并且珠光体的平均纵横比≤5，质量％为0.05-0.20％C，≤1.0％Si ，0.05-1.2％的Mn，≤0.030％的P，≤0.020％的S，0.001-0.07％的Al，另外还有0.05-3.0％的Cr，0.05-1.0％的Cu，0.05-1.0的Ni，0.01-1.0 ％Mo，如有必要，可以含有Ti，Nb，V，Ca，REM，Mg，Zr和余量的Fe与不可避免的杂质，ΔT（= 5Si + 89Mn + 11Cr + 11Mo + 7Cu + 20Ni + 850Nb + 250V））为≤100。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2008221318A Method for producing steel sheet pile 审中-公开
标题翻译：钢板生产方法
公开(公告)号：JP2008221318A
公开(公告)日：2008-09-25
申请号：JP2007066855
申请日：2007-03-15
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KIMURA TATSUKI , NAKADA NAOKI , SUZUKI SHINICHI , SHIKAUCHI NOBUO
IPC分类号： B21B1/082 , B21B45/02 , C21D8/02 , C22C38/00 , C22C38/14 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a method for producing a steel sheet pile in which the thickness of a web is >15 mm and the toughness of the web is excellent. SOLUTION: When a steel stock is reheated at 1,100 to 1,350°C, and is thereafter subjected to a process of brake down rolling, intermediate rolling and finish rolling including claw bending, so as to produce a steel sheet pile, during rolling in the intermediate rolling, only a web part is water-cooled, preferably, the water cooling is performed over a length of 0.5 to 1.5 m at a flow rate density of 1 to 5 m 3 /m 2 min, and, during the rolling in the intermediate rolling, at least two or more parts at the right and left in the part equivalent to a flange or a joint are jetted with compressed air, so as to be non-water cooled. In the intermediate rolling conditions of the web part, the cumulative draft at ≤950°C is ≥20%; rolling finishing temperature is 800 to 900°C; and also, the rolling finishing temperature of the web part is controlled to at most the rolling finishing temperature of the flange part of +50°C. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：待解决的问题：提供一种钢板桩的制造方法，其中幅材的厚度> 15mm，网的韧性优异。解决方案：当钢坯在1100至1350℃下再加热时，然后在轧制过程中进行制动下滚，中间轧制和包括爪弯曲的中间轧制和精轧，以生产钢板桩在中间轧制中，只有纤维网部分是水冷的，优选地，在1至5m 3 / m 2 / m 3的流速密度下，以0.5至1.5μm的长度进行水冷却， SP> 2 min，并且在中间轧制期间的轧制中，在与凸缘或接头相当的部分中的右侧和左侧的至少两个或更多个部分被压缩空气喷射，以便非水冷却。在腹板部分的中间轧制条件下，≤950°C的累积取料度≥20％; 轧制终轧温度为800〜900℃; 并且将幅材部分的轧制最终温度控制在+ 50℃的凸缘部分的最终轧制最终温度。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007051348A Pearlite steel rail having excellent wear resistance and fatigue damage resistance 有权
标题翻译：具有优异耐磨损性和耐疲劳性的PEARLITE钢轨
公开(公告)号：JP2007051348A
公开(公告)日：2007-03-01
申请号：JP2005238103
申请日：2005-08-19
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： HONJO MINORU , KIMURA TATSUKI , SUZUKI SHINICHI
IPC分类号： C22C38/00 , C22C38/12 , C22C38/48
摘要： PROBLEM TO BE SOLVED: To provide a pearlite steel rail excellent in both the characteristics of wear resistance and fatigue damage resistance.
SOLUTION: The pearlite steel rail having excellent wear resistance and fatigue damage resistance has a composition comprising, by mass, C of 0.6 to 1.1%, Si of 0.1 to 1.2%, Mn of 0.4 to 1.5%, ≤0.035% P, ≤0.035% S and 0.01 to 1.0% W, further comprising, at need, one or two kinds selected from V of 0.001 to 0.50% and Nb of 0.001 to 0.05% and/or one or more selected from Cu of ≤1.0%, Ni of ≤1.0%, Cr of ≤1.5% and Mo of ≤0.5%.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供在耐磨性和耐疲劳损伤性方面都优异的珠光体钢轨。＆lt; P＆gt;解决方案：具有优异的耐磨性和耐疲劳损伤性的珠光体钢轨道具有质量分数为0.6〜1.1％的Si，0.1〜1.2％的Si，0.4〜1.5％的Mn，0.035％的P ，≤0.035％S和0.01〜1.0％W，进一步包含选自V为0.001〜0.50％中的一种或两种，Nb为0.001〜0.05％，和/或选自Cu≤1.0％的Nb，，Ni为≤1.0％，Cr为≤1.5％，Mo为≤0.5％。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2008179878A High-strength thick steel plate superior in brittle crack propagation preventing characteristic, and its manufacturing method 有权
标题翻译：高强度厚钢板超高强度裂纹扩展预防特性及其制造方法
公开(公告)号：JP2008179878A
公开(公告)日：2008-08-07
申请号：JP2007126331
申请日：2007-05-11
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KIMURA TATSUKI , SUZUKI SHINICHI , SHIKAUCHI NOBUO
IPC分类号： C22C38/00 , C21D8/02 , C22C38/12 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high strength thick steel plate superior in brittle crack propagation preventing characteristic, and a manufacturing method capable of manufacturing the high-strength thick steel plate superior in brittle crack propagation preventing characteristic in a high efficiency without hindering the productivity.
SOLUTION: A hot rolling is applied under the condition that the heating temperature is 1,000-1,350°C, the accumulated reduction in the temperature range of 850-950°C is 50% or more, and the rolling finish temperature is in the temperature range of 850-950°C, to a steel raw material having a composition comprising, by mass%, 0.001-0.25% of C, 0.05-2.0% of Si, 0.1-2.0% of Mn, 0.03% or less of P, 0.03% or less of S, 0.08-3.0% of Al and 0.005-0.1% of Nb, and the balance being Fe with inevitable impurities, and then the rolled steel plate is air-cooled. Thereby, the thick steel plate has such a structure that the (100) surface strength ratio at the surface layer part and the plate thickness central part is 2.0 or more, and the (110) surface strength ratio at the plate thickness 1/4 part is 1.5 or more on the surface parallel to the plate surface, and is superior in brittle crack propagation preventing characteristic.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种优异的脆性裂纹扩展防止特性的高强度厚钢板，以及能够高效率地制造脆性裂纹扩展防止特性优异的高强度厚钢板的制造方法，没有阻碍生产力。解决方案：在加热温度为1000-1,350℃的条件下进行热轧，在850-950℃的温度范围内的累积压下率为50％以上，轧制终了温度为在850-950℃的温度范围内，具有以质量％计含有C：0.001〜0.25％，Si：0.05〜2.0％，Mn：0.1〜2.0％，Mn：0.03〜 P，0.03％以下的S，0.08〜3.0％的Al和0.005〜0.1％的Nb，余量为Fe和不可避免的杂质，然后将该钢板进行风冷。由此，厚钢板的表面层部和板厚中心部的（100）表面强度比为2.0以上，板厚1/4的表面强度比（110）在平行于板表面的表面上为1.5以上，脆性裂纹扩展防止特性优异。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007332414A High strength wide steel sheet pile and its production method 审中-公开
标题翻译：高强度钢板及其生产方法
公开(公告)号：JP2007332414A
公开(公告)日：2007-12-27
申请号：JP2006164257
申请日：2006-06-14
申请人： Jfe Steel Kk , Jfeスチール株式会社
发明人： KIMURA TATSUKI , UEDA KEIJI , SUZUKI SHINICHI
IPC分类号： C22C38/00 , B21B1/082 , C21D8/00 , C22C38/06 , C22C38/58
摘要： PROBLEM TO BE SOLVED: To provide a high strength wide steel sheet pile having an effective width of ≥500 nm and a yield point of ≥390 N/mm 2 which can be produced without degrading a productivity. SOLUTION: A steel stock having a componential composition comprising, by mass, 0.01 to 0.20% C, 0.05 to 1.0% Si, 0.1 to 2.0% Mn, ≤0.030% P, ≤0.030% S and 0.3 to 2.0% Al, and the balance Fe with inevitable impurities, and in which C and Al satisfy inequality (1) of Al≥1.3×C+0.3; wherein, C and Al satisfy the composition (mass%) of each element is heated at 1,200 to 1,350°C, is thereafter hot-rolled at ≥850°C, is further subjected to joint forming/rolling at 600 to 800°C, and is allowed to cool, so as to obtain the high strength wide steel sheet pile. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种有效宽度≥500nm，屈服点≥390N/ mm 2 的高强度宽钢板桩，其可以在不劣化的情况下生产生产率。
解决方案：一种组分组成的钢料，其含有质量为0.01〜0.20％的C，0.05〜1.0％的Si，0.1〜2.0％的Mn，≤0.030％的P，≤0.030％的S和0.3〜2.0％的Al ，平衡Fe与不可避免的杂质，其中C和Al满足Al≥1.3×C + 0.3的不等式（1）; 其中，将满足各元素的组成（质量％）的C和Al加热至1,200〜1350℃，然后在≥850℃下进行热轧，在600〜800℃下进一步进行接合成型/轧制，并允许冷却，以获得高强度宽钢板桩。版权所有（C）2008，JPO＆INPIT

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