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1. 发明专利

JP2007254775A Self-piercing rivet and manufacturing method therefor 有权
标题翻译：自ING ING。。。。。。。。。。。
公开(公告)号：JP2007254775A
公开(公告)日：2007-10-04
申请号：JP2006077653
申请日：2006-03-20
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： ONO KIMIMOTO , NAKANISHI EIZABURO , KIMURA YUJI , TSUZAKI KANEAKI
IPC分类号： C22C38/00 , C21D1/18 , C21D1/26 , C21D9/00 , C22C38/50 , F16B19/08
摘要： PROBLEM TO BE SOLVED: To provide a self-piercing rivet superior in hardness, ductility, toughness and delayed fracture resistance.
SOLUTION: The self-piercing rivet has a composition that includes 0.30-0.70 mass% C, 0.01-2.50 mass% Si, 0.10-1.00 mass% Mn, and further 0.01-3.00 mass% Cr and/or 0.10-3.00 mass% Ni as basic ingredients, and further includes 0.002-1.50 mass% in total of one or more elements selected from the group consisting of Mo, W, V, Ti and Nb, and the balance Fe with impurities, in which the content of P is controlled to 0.01 mass% or less and the content S is controlled to 0.01 mass% or less.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供硬度，延展性，韧性和延迟抗断裂性优异的自穿铆钉。解决方案：自穿铆钉的组成为：含有0.30-0.70质量％的C，0.01-2.50质量％的Si，0.10-1.00质量％的Mn，还有0.01-3.00质量％的Cr和/或0.10-3.00 质量％Ni作为基本成分，进一步包括选自Mo，W，V，Ti和Nb中的一种或多种元素的总计为0.002-1.50质量％，余量为杂质的Fe，其中， P控制在0.01质量％以下，含量S控制在0.01质量％以下。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008248341A Ultrahigh strength steel sheet, and automobile strength component using the same 审中-公开
标题翻译：超高强度钢板及使用其的汽车强度组件
公开(公告)号：JP2008248341A
公开(公告)日：2008-10-16
申请号：JP2007093281
申请日：2007-03-30
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： INOUE TADANOBU , KIMURA YUJI , NAGAI HISASHI , NAKANISHI EIZABURO , ONO KIMIMOTO , SUZUKI KENJI , OKADA YOSHIO
IPC分类号： C22C38/00 , B21D22/20 , B62D25/04 , B62D25/20 , C21D9/46 , C22C38/34 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh strength steel sheet combining excellent formability and delayed fracture resistance, and to provide an automobile strength component using the same.
SOLUTION: As a result of having repeated examination for solving the problem, particularly, regarding the stress-strain characteristics of the surface layer in a steel sheet, in the case the depletion of stress from tensile strength to fracture is defined as SD in a tensile test for materials, SD is controlled to ≥200 MPa, and the uniform elongation of the stress-strain characteristics in the remaining steel sheet central part is made higher than the uniform elongation of the surface layer part.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种结合优异的成形性和延迟抗断裂性的超高强度钢板，并提供使用其的汽车强度组分。解决方案：通过重复检查以解决问题的结果，特别是关于钢板中的表面层的应力应变特性，在从拉伸强度到断裂的应力消耗被定义为SD 在材料的拉伸试验中，将SD控制为≥200MPa，使剩余钢板中心部的应力应变特性的均匀伸长率高于表层部的均匀伸长率。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2007332457A Ultrahigh-strength steel sheet and intensity component for automobile utilizing the same 有权
标题翻译：超高强度钢板和用于汽车的强度组件
公开(公告)号：JP2007332457A
公开(公告)日：2007-12-27
申请号：JP2007127755
申请日：2007-05-14
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： SASAOKA HIDEYUKI , ONO KIMIMOTO , NAKANISHI EIZABURO , OKADA YOSHIO , INOUE TADANOBU , KIMURA YUJI , NAGAI HISASHI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/28 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh-strength steel sheet combining excellent formability and delayed fracture resistance, and to provide an intensity component for an automobile utilizing the same.
SOLUTION: An ultrahigh-strength steel sheet comprising molybdenum, tungsten, vanadium, titanium, niobium or the like, wherein the base structure thereof is lower bainite, the grain diameter of prior austenite is 30 μm or less and the tensile strength thereof is 980 MPa or greater. The steel sheet comprises 0.10 to 0.40% C, 0.01 to 3.5% Cr, 0.10 to 2.0% Mo, 0.20 to 1.5% W, 0.002 to 1.0% V, 0.002 to 1.0% Ti, 0.005 to 1.0% Nb or the like, and comprises 0.02% or less P and 0.01% or less S and the balance of Fe and unavoidable impurities, wherein the average grain diameter of prior austenite is 3 to 10 μm. Further, there is provided an intensity component for an automobile utilizing the ultrahigh-strength steel sheet.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种结合优异的成形性和延迟耐断裂性的超高强度钢板，并提供使用该强度的汽车的强度分量。解决方案：一种包含钼，钨，钒，钛，铌等的超高强度钢板，其基体结构为低贝氏体，原奥氏体的晶粒直径为30μm以下，其拉伸强度为980MPa以上。该钢板包含0.10〜0.40％的C，0.01〜3.5％的Cr，0.10〜2.0％的Mo，0.20〜1.5％的W，0.002〜1.0％的V，0.002〜1.0％的Ti，0.005〜1.0％的Nb等，包含0.02％以下的P和0.01％以下的S，剩余的Fe和不可避免的杂质，其中，前奥氏体的平均粒径为3〜10μm。此外，提供了利用超高强度钢板的汽车的强度分量。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2007308742A High-tensile strength steel plate for resistance welding and joining method therefor 有权
标题翻译：用于电阻焊接的高强度钢板及其接合方法
公开(公告)号：JP2007308742A
公开(公告)日：2007-11-29
申请号：JP2006137230
申请日：2006-05-17
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： ONO KIMIMOTO , SASAOKA HIDEYUKI , NAKANISHI EIZABURO , OKADA YOSHIO , INOUE TADANOBU , KIMURA YUJI , NAGAI HISASHI
IPC分类号： C22C38/00 , B62D25/00 , C21D9/46 , C22C38/22 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a high-tensile strength steel plate in which the joining strength of a joint by resistance welding can be secured in spite of its strength in a class of ≥1,180 MPa, and which has excellent resistance weldability including delayed fracture resistance as well, and to provide a method for joining the high-tensile strength steel plates.
SOLUTION: The high-tensile strength steel plate has a composition containing 0.15 to 0.25% C and 0.1 to 1.0% Si, and in which the content of Mn is controlled to the range of 0.10 to 1.0%, on the other hand, 0.5 to 3.0% Cr and 0.01 to 2.0% Mo are added, and further, the ratio of Mn/(Mo+Cr) is controlled to
摘要翻译：要解决的问题：提供一种高强度钢板，其中，尽管其强度等于≥1,180MPa，能够确保接合体的接合强度，并且具有优异的电阻可焊性包括延迟抗断裂性以及提供接合高强度钢板的方法。解决方案：高强度钢板具有含有0.15-0.25％C和0.1-1.0％Si的组成，另一方面Mn的含量控制在0.10-1.0％的范围内，添加0.5〜3.0％的Cr和0.01〜2.0％的Mo，进一步将Mn /（Mo + Cr）的比例控制在<0.50。更优选地，作为杂质成分的P和S的含量分别被抑制为质量分数≤0.02％和≤0.01％，进一步抑制0.1〜3.0％的Ni，0.01〜3.0％的Cu，0.001〜0.1％的Al和添加至少一种选自0.01至1.5％W，0.001至1.0％V，0.001至1.0％Ti，0.001至1.0％Nb，0.01至1.0％Ta和0.001至1.0％B的元素。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007332456A Ultrahigh strength steel sheet and strength part for automobile utilizing the same 有权
标题翻译：超高强度钢板和强度部分使用汽车
公开(公告)号：JP2007332456A
公开(公告)日：2007-12-27
申请号：JP2007127754
申请日：2007-05-14
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： SASAOKA HIDEYUKI , ONO KIMIMOTO , NAKANISHI EIZABURO , OKADA YOSHIO , INOUE TADANOBU , KIMURA YUJI , NAGAI HISASHI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/28 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh strength steel sheet combining excellent formability and delayed fracture resistance, and to provide a strength part for an automobile utilizing the same.
SOLUTION: An ultrahigh strength steel sheet comprising molybdenum, tungsten, vanadium, titanium, niobium or the like, wherein the base structure thereof is annealed lower bainite, the grain diameter of prior austenite is 30 μm or less and the tensile strength thereof is 980 MPa or greater. The steel sheet comprises 0.10 to 0.40% C, 0.01 to 3.5% Cr, 0.10 to 2.0% Mo, 0.20 to 1.5% W, 0.002 to 1.0% V, 0.002 to 1.0% Ti, 0.005 to 1.0% Nb or the like, and comprises 0.02% or less P and 0.01% or less S and the balance of Fe and unavoidable impurities, wherein the average grain diameter of prior austenite is 3 to 10 μm. Further, there is provided a strength part for an automobile utilizing the ultrahigh strength steel sheet.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种结合优异的成形性和延迟抗断裂性的超高强度钢板，并为使用该强度的汽车提供强度部件。解决方案：一种包括钼，钨，钒，钛，铌等的超高强度钢板，其基体结构为退火的下贝氏体，原奥氏体的晶粒直径为30μm以下，其拉伸强度为980MPa以上。该钢板包含0.10〜0.40％的C，0.01〜3.5％的Cr，0.10〜2.0％的Mo，0.20〜1.5％的W，0.002〜1.0％的V，0.002〜1.0％的Ti，0.005〜1.0％的Nb等，包含0.02％以下的P和0.01％以下的S，剩余的Fe和不可避免的杂质，其中，前奥氏体的平均粒径为3〜10μm。此外，提供了利用超高强度钢板的汽车的强度部。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2007308744A Warm press formed high-strength member, and its manufacturing method 有权
标题翻译：压铸成型高强度会员及其制造方法
公开(公告)号：JP2007308744A
公开(公告)日：2007-11-29
申请号：JP2006137232
申请日：2006-05-17
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： NAKANISHI EIZABURO , ONO KIMIMOTO , SASAOKA HIDEYUKI , OKADA YOSHIO , INOUE TADANOBU , KIMURA YUJI , NAGAI HISASHI
IPC分类号： C22C38/00 , B21B3/00 , B21D22/20 , C21D9/46 , C22C38/34
摘要： PROBLEM TO BE SOLVED: To provide a warm press formed high-strength member having high strength and excellent dimensional accuracy in forming a member and also to provide its manufacturing method.
SOLUTION: The warm press formed high-strength member can be obtained by subjecting a high-strength steel sheet of ≥980 MPa tensile strength to press forming in a warm temperature region, and the high-strength steel sheet has plastic deformability of ≥1 logarithmic strain. The method for manufacturing the warm press formed high-strength member includes: (1) a step of preparing a high-strength steel sheet of ≥980 MPa tensile strength; (2) a step of forming a plastic-deformed section having ≥1 logarithmic strain in the whole or a part of the high-strength steel sheet to obtain a strain-holding high-strength steel sheet having the plastic-deformed section; and (3) a step of press forming the strain-holding high-strength steel sheet in a warm temperature region to obtain the warm press formed high-strength member.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种在形成构件时具有高强度和优异的尺寸精度的热压成形的高强度构件，并提供其制造方法。解决方案：通过对≥980MPa的拉伸强度的高强度钢板在温暖区域进行冲压加工，可以得到热压成型的高强度部件，高强度钢板具有塑性变形性 ≥1对数应变。制造热压成形的高强度部件的方法包括：（1）制备抗拉强度≥980MPa的高强度钢板的工序; （2）在高强度钢板的全部或一部分中形成具有≥1对数应变的塑性变形部的步骤，以获得具有塑性变形部的应变保持高强度钢板; （3）在温暖区域中压制成形为应变保持用高强度钢板的工序，得到加压成型的高强度部件。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007254774A Method for manufacturing self-piercing rivet 有权
标题翻译：制造自行车的方法
公开(公告)号：JP2007254774A
公开(公告)日：2007-10-04
申请号：JP2006077650
申请日：2006-03-20
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： ONO KIMIMOTO , NAKANISHI EIZABURO , KIMURA YUJI , TSUZAKI KANEAKI
IPC分类号： C22C38/00 , B21K1/58 , C21D1/18 , C21D9/00 , C22C38/50 , F16B19/08
CPC分类号： F16B19/086
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a self-piercing rivet superior in hardness, ductility, toughness and delayed fracture resistance. SOLUTION: The method for manufacturing the self-piercing rivet 300 comprises the steps of: forging a base steel material in an austenitic region and quenching it to prepare a self-piercing rivet precursor; and tempering the self-piercing rivet precursor. The base steel material includes 0.30-0.70 mass% C, 0.01-2.50 mass% Si, 0.10-1.00 mass% Mn, 0.01-3.00 mass% Cr, and 0.10-3.00 mass% Ni as basic ingredients, and further includes 0.002-1.50 mass% in total of one or more elements selected from the group consisting of Mo, W, V, Ti and Nb, and the balance Fe with impurities. The content of P in the impurities is controlled to 0.01 mass% or less and the content of S is controlled to 0.01 mass% or less. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造硬度，延展性，韧性和延迟抗断裂性优异的自穿铆钉的方法。解决方案：用于制造自穿孔铆钉300的方法包括以下步骤：在奥氏体区域锻造基材，并淬火以制备自穿孔铆钉前体; 并回火自攻铆钉前体。基础钢材含有0.03-0.70质量％C，0.01-2.50质量％Si，0.10-1.00质量％Mn，0.01-3.00质量％Cr和0.10-3.00质量％的Ni作为基本成分，还包括0.002-1.50 合计选自Mo，W，V，Ti和Nb中的一种或多种元素的质量％，余量为Fe与杂质。将杂质中的P的含量控制在0.01质量％以下，S的含量控制在0.01质量％以下。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007332455A Ultrahigh strength steel sheet and strength part for automobile utilizing the same 有权
标题翻译：超高强度钢板和强度部分使用汽车
公开(公告)号：JP2007332455A
公开(公告)日：2007-12-27
申请号：JP2007127753
申请日：2007-05-14
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： SASAOKA HIDEYUKI , ONO KIMIMOTO , NAKANISHI EIZABURO , OKADA YOSHIO , INOUE TADANOBU , KIMURA YUJI , NAGAI HISASHI
IPC分类号： C22C38/00 , C21D9/46 , C22C38/28 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide an ultrahigh strength steel sheet combining excellent formability and delayed fracture resistance, and to provide a strength part for an automobile utilizing the same. SOLUTION: An ultrahigh strength steel sheet comprising molybdenum, tungsten, vanadium, titanium, niobium or the like, wherein the base structure thereof is annealed martensite, the grain diameter of prior austenite is 30 μm or less and the tensile strength thereof is 980 MPa or greater. The steel sheet comprises 0.10 to 0.40% C, 0.01 to 3.5% Cr, 0.10 to 2.0% Mo, 0.20 to 1.5% W, 0.002 to 1.0% V, 0.002 to 1.0% Ti, 0.005 to 1.0% Nb or the like, and comprises 0.02% or less P and 0.01% or less S and the balance of Fe and unavoidable impurities, wherein the average grain diameter of prior austenite is 3 to 10 μm. Further, there is provided a strength part for an automobile utilizing the ultrahigh strength steel sheet. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种结合优异的成形性和延迟抗断裂性的超高强度钢板，并为使用该强度的汽车提供强度部件。解决方案：包括钼，钨，钒，钛，铌等的超高强度钢板，其基体结构为退火马氏体，原奥氏体的晶粒直径为30μm以下，其拉伸强度为 980MPa以上。该钢板包含0.10〜0.40％的C，0.01〜3.5％的Cr，0.10〜2.0％的Mo，0.20〜1.5％的W，0.002〜1.0％的V，0.002〜1.0％的Ti，0.005〜1.0％的Nb等，包含0.02％以下的P和0.01％以下的S，剩余的Fe和不可避免的杂质，其中，前奥氏体的平均粒径为3〜10μm。此外，提供了利用超高强度钢板的汽车的强度部。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007308743A High-tensile strength steel plate for resistance welding and method for joining the same 有权
标题翻译：用于电阻焊接的高强度钢板及其加工方法
公开(公告)号：JP2007308743A
公开(公告)日：2007-11-29
申请号：JP2006137231
申请日：2006-05-17
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： ONO KIMIMOTO , SASAOKA HIDEYUKI , NAKANISHI EIZABURO , OKADA YOSHIO , INOUE TADANOBU , KIMURA YUJI , NAGAI HISASHI
IPC分类号： C22C38/00 , B62D25/00 , C21D9/46 , C22C38/22 , C22C38/54
摘要： PROBLEM TO BE SOLVED: To provide a high-tensile strength steel plate having excellent resistance weldability in which the joining strength of a weld zone by resistance welding can be secured in spite of the high-tensile strength steel plate having its strength in a class of ≥1,180 MPa, and to provide a method for joining the high-tensile strength steel plates by resistance welding.
SOLUTION: The high-tensile strength steel plate has a composition containing 0.15 to 0.25% C and 0.1 to 1.0% Si, and in which the content of Mn is controlled to the range of 0.10 to 1.0%, 0.5 to 3.0% Cr and 0.01 to 2.0% Mo are added, and further, the ratio of Mn/(Mn+Cr) is controlled to
摘要翻译：要解决的问题：提供一种具有优异的电阻可焊性的高抗拉强度钢板，其中尽管具有其强度的高抗拉强度钢板，但是通过电阻焊接可以确保焊接区域的接合强度一类≥1,180MPa，并提供通过电阻焊接接合高强度钢板的方法。解决方案：高强度钢板具有含有0.15-0.25％C和0.1-1.0％Si的组成，其中Mn的含量控制在0.10-1.0％的范围内，0.5-3.0％ Cr和0.01〜2.0％的Mo，进一步将Mn /（Mn + Cr）的比例控制为<0.50，以使金属碳化物析出。更优选将作为杂质成分的P和S分别抑制为质量分数为0.02％，≤0.01％，进一步优选为0.1〜3.0％的Ni，0.01〜3.0％的Cu，0.001〜0.1％的Al和至少1种元素选自0.01至1.5％W，0.001至1.0％V，0.001至1.0％Ti，0.001至1.0％Nb，0.01至1.0％Ta和0.001至1.0％B。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007308745A High strength member and its manufacturing method 有权
标题翻译：高强度会员及其制造方法
公开(公告)号：JP2007308745A
公开(公告)日：2007-11-29
申请号：JP2006137233
申请日：2006-05-17
申请人： National Institute For Materials Science , Nissan Motor Co Ltd , 日産自動車株式会社 , 独立行政法人物質・材料研究機構
发明人： NAKANISHI EIZABURO , ONO KIMIMOTO , SASAOKA HIDEYUKI , OKADA YOSHIO , MICHIURA YOSHIHARU , TAKAGI MASAAKI , INOUE TADANOBU , KIMURA YUJI , NAGAI HISASHI
IPC分类号： C22C38/00 , C21D1/18 , C22C38/22 , C22C38/50
摘要： PROBLEM TO BE SOLVED: To provide a high strength member having improved toughness and ductility and also to provide its manufacturing method.
SOLUTION: The high strength member can be obtained by heating a high strength steel sheet up to a temperature in an austenite region and then applying press forming and cooling in a die, and the high strength steel sheet has a composition containing 0.1 to 0.4% C, 0.1 to 2.0% Mo and 0.1 to 2.0% Cr and also has a structure containing precipitates composed of metal carbides of 0.01 to 5μm grain size in the steel. In the method for manufacturing the high strength member, the high strength steel sheet is heated up to a temperature in an austenite region by sandwiching both faces of the high strength steel sheet between induction heated steel materials and is then press formed and cooled in a die to obtain the desired high strength member.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有改进的韧性和延展性的高强度部件，并提供其制造方法。解决方案：通过将高强度钢板加热到奥氏体区域的温度，然后在模具中进行冲压成形和冷却，可以获得高强度部件，高强度钢板的组成含有0.1〜 0.4％C，0.1〜2.0％Mo和0.1〜2.0％Cr，并且还具有在钢中含有0.01〜5μm晶粒尺寸的金属碳化物构成的析出物的结构。在高强度部件的制造方法中，通过将高强度钢板的两面夹在感应加热钢材之间，将高强度钢板加热到奥氏体区域的温度，然后在模具中压制成形并冷却以获得所需的高强度构件。版权所有（C）2008，JPO＆INPIT

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