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公开(公告)号：EP4223900A1
公开(公告)日：2023-08-09
申请号：EP21875142.8
申请日：2021-09-10
摘要： This high-strength steel sheet contains predetermined chemical components, in a range from a surface to 1/10 of a sheet thickness in a sheet thickness direction, an average pole density of an orientation group 1 that is an orientation group expressed by φ1 = 0° to 90°, Φ = 50° to 60° and φ2 = 45° in terms of an Euler angle is 1.5 or less, an average pole density of an orientation group 2 that is an orientation group expressed by φ1 = 45° to 85°, Φ = 85° to 90° and φ2 = 45° in terms of the Euler angle is 1.5 or more, an S value that indicates a degree of randomness of surface properties is 7.5 or less, an E value that indicates a degree of concentration of the surface properties is 0.04 or more, and a tensile strength is 590 MPa or more.
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公开(公告)号：EP4001062A1
公开(公告)日：2022-05-25
申请号：EP20839965.9
申请日：2020-07-14
IPC分类号： B62D25/04
摘要： An objective of the present disclosure is to provide a front pillar outer that is inexpensive, lightweight and strong. A front pillar outer (1) includes a glass-face-side flange part (2), a door-side flange part (3), and a main body part (4) that connects the glass-face-side flange part (2) and the door-side flange part (3) to each other. In a partial area of the door-side flange part (3) in a longitudinal direction thereof, a first plate part (3a) that is connected to a side edge (3b) of the door-side flange part (3) is folded so that the first plate part (3a) is overlaid on the door-side flange part (3). In a partial area of the glass-face-side flange part (2) in a longitudinal direction thereof, a second plate part (2a) that is connected to a side edge (2b) of the glass-face-side flange part (2) is folded so that the second plate part (2a) is overlaid on the glass-face-side flange part (2).
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3.发明公开HIGH-STRENGTH STEEL SHEETS WHICH ARE EXTREMELY EXCELLENT IN THE BALANCE BETWEEN BURRING WORKABILITY AND DUCTILITY AND EXCELLENT IN FATIGUE ENDURANCE, ZINC-COATED STEEL SHEETS, AND PROCESSES FOR PRODUCTION OF BOTH 有权高强度钢板具有FOR的制造BETWEEN ABGRATVERARBEITBARKEIT性和导电性优异的疲劳强度钢镀锌板AND METHOD平衡优异BOTH
公开(公告)号：EP2264206A1
公开(公告)日：2010-12-22
申请号：EP09730413.3
申请日：2009-04-09
CPC分类号： C23C2/28 , C21D8/0236 , C21D8/0273 , C21D9/46 , C21D9/48 , C21D2201/05 , C21D2211/004 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/18 , C23C2/02 , C23C2/06
摘要： The invention is directed to providing, for application in automobiles, construction materials, household appliances and the like, high-strength sheets excellent in formability properties such as hole expansibility and ductility, and also in fatigue resistance, characterized in comprising, in specified contents expressed in mass%, C, Si, Mn, P, S, Al, N and O and a balance of iron and unavoidable impurities, and having a steel sheet structure composed mainly of ferrite and hard structures, a crystal orientation difference between some ferrite adjacent to hard structures and the hard structures of less than 9°, and a maximum tensile strength of 540 MPa or greater.
摘要翻译： 本发明的目的在于提供，对于汽车应用，建筑材料，家用电器等中，高强度的片材具有优异的可成形性：如扩孔性和延展性，因此，在抗疲劳性，在包含特点是，在指定的内容中过表达 以质量％计，C，硅，锰，P，S，铝，N和O以及铁和不可避免的杂质，并且具有主要的铁素体和硬质组织构成的钢板组织，一些铁氧体adjacent-之间的晶体取向差的平衡 到硬质组织和小于9°的硬质组织，和540MPa以上的最大拉伸强度。
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4.发明公开
公开(公告)号：EP4461830A1
公开(公告)日：2024-11-13
申请号：EP23737300.6
申请日：2023-01-06
摘要： This steel sheet for hot-stamping includes: a base steel sheet having a predetermined chemical composition; and a galvanized layer formed on a surface of the base steel sheet, in which a microstructure at a position at 1/4 depth which is in a range of 1/8 to 3/8 of a sheet thickness in a sheet thickness direction from the surface of the base steel sheet contains, in volume fraction, ferrite: 20% to 95% and pearlite: 5% to 80%, the remaining structure including bainite, the galvanized layer has a coating amount of 35 g/m 2 or more, and a chemical composition of the galvanized layer includes 0.0005 mass% or more of B.
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公开(公告)号：EP4112426A1
公开(公告)日：2023-01-04
申请号：EP21759674.1
申请日：2021-02-26
发明人： OTSUKA, Kenichiro , YONEBAYASHI, Toru , SHIRAKAMI, Satoshi , SAWA, Yasunori , AZUMA, Masafumi , NISHIMURA, Ryuichi
摘要： A stiffened panel structure (1) includes a panel-shaped component (2) and a wire (3). The panel-shaped component (2) has a panel body (21) that curves in such a manner as to be convex outward. The wire (3) has a first end portion (31) and a second end portion (32). The first end portion (31) is bonded to a first point (211) on the inner surface (21a) of the panel body (21). The second end portion (32) is bonded to a second point (212) on the inner surface (21a) of the panel body (21). The wire (3) is strained between the first point (211) and the second point (212).
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公开(公告)号：EP4043595A1
公开(公告)日：2022-08-17
申请号：EP20874851.7
申请日：2020-10-09
IPC分类号： C21D9/46 , C22C38/00 , C22C38/58 , C21D1/18 , C21D1/25 , C21D1/26 , C21D8/02 , C22C38/02 , C22C38/04 , C23C2/00
摘要： A cold-rolled steel sheet has a predetermined chemical composition; a structure of the cold-rolled steel sheet at a position which is 1/4 of a sheet thickness from a surface contains, in a volume percentage, 80.0% or more of tempered martensite, more than 2.5% and less than 10.0% of residual austenite, 0% or more and 15.0% or less of ferrite and bainite in total, 0% or more and 3.0% or less of martensite, and the remainder structure. With respect to the above-described structure, a maximum value of a random specific intensity Iq is 4.0 or less, an average diameter of a region Rq which has an orientation within 10° from a crystal orientation in which the random specific intensity Iq is maximum is 10.0 µm or less, a surface density of the region Rq is 1000 pieces/mm 2 or more, a tensile strength is 1310 MPa or more, a uniform elongation is 5.0% or more, and Ts×λ is 35000 MPa·% or more.
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公开(公告)号：EP4001061A1
公开(公告)日：2022-05-25
申请号：EP20839593.9
申请日：2020-07-14
IPC分类号： B62D25/04
摘要： An objective of the present invention is to provide a front pillar outer that has high strength and high rigidity. In an area (O1) in which the first door-side flange part (13) and a second door-side flange part (23) overlap with each other, the first door-side flange part (13) and the second door-side flange part (23) are joined to each other. In an area (O2) in which the first glass-face-side flange part (12) and the second glass-face-side flange part (22) overlap with each other, the first glass-face-side flange part (12) and the second glass-face-side flange part (22) are joined to each other.
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公开(公告)号：EP3282031B1
公开(公告)日：2020-02-19
申请号：EP16776635.1
申请日：2016-04-07
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公开(公告)号：EP3282030B1
公开(公告)日：2020-02-19
申请号：EP16776634.4
申请日：2016-04-07
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10.发明公开
公开(公告)号：EP2256224A1
公开(公告)日：2010-12-01
申请号：EP09724026.1
申请日：2009-03-26
CPC分类号： C22C38/32 , C21D8/0226 , C21D8/04 , C21D8/0426 , C21D8/0436 , C21D8/0473 , C21D9/46 , C21D2211/005 , C21D2211/008 , C22C38/002 , C22C38/02 , C22C38/28 , C22C38/38 , C23C2/02 , C23C2/04 , C23C2/26 , C23C2/28 , Y10T428/12799
摘要： This cold-rolled steel sheet includes, in terms of mass %, C: not less than 0.05% and not more than 0.095%, Cr: not less than 0.15% and not more than 2.0%, B: not less than 0.0003% and not more than 0.01%, Si: not less than 0.3% and not more than 2.0%, Mn: not less than 1.7% and not more than 2.6%, Ti: not less than 0.005% and not more than 0.14%, P: not more than 0.03%, S: not more than 0.01%, Al: not more than 0.1%, N: less than 0.005%, O: not less than 0.0005% and not more than 0.005%, and contains as the remainder, iron and unavoidable impurities, wherein the microstructure of the steel sheet includes mainly polygonal ferrite having a crystal grain size of not more than 4 µm, and hard microstructures of bainite and martensite, the block size of the martensite is not more than 0.9 µm, the Cr content within the martensite is 1.1 to 1.5 times the Cr content within the polygonal ferrite, and the tensile strength is at least 880 MPa.
摘要翻译： 这个冷轧钢板包括，以质量％计，C：不小于0.05％和不大于0.095％以下，Cr：大于等于0.15％和不大于2.0％，B：不小于0.0003％及 不超过0：01％以下，Si：不小于0.3％和不大于2.0％以下，Mn：不小于1.7％和不大于2.6％以下，Ti：低于0.005％并且不大于0.14％到，P： 不超过0.03％到，S：不超过12：01％以下，Al：不大于0.1％，N：小于0.005％，O：不低于0.0005％并且不大于0.005％，并含有作为剩余部分，铁 和不可避免的杂质，worin钢板的显微组织包括具有不大于4微米的晶粒尺寸主要多边形铁素体，和贝氏体及马氏体的硬质组织，马氏体的块尺寸不大于0.9微米，将Cr 马氏体中的含量为多边形铁素体中的Cr含量的1.1〜1.5倍，拉伸强度至少为880兆帕。
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