公开(公告)号：EP3081664A4

公开(公告)日：2017-07-19

申请号：EP14869603

申请日：2014-12-10

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： FUJITA SOSHI ,  YAMANAKA SHINTARO ,  MAKI JUN ,  FUJIMOTO HIROKI ,  OIKAWA HATSUHIKO ,  IRIKAWA HIDEAKI

IPC分类号： C23C2/12 ,  B21D22/02 ,  B21D22/20 ,  B21D35/00 ,  B32B15/01 ,  C22C21/00 ,  C22C21/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/18 ,  C22C38/38 ,  C23C2/20 ,  C23C2/28 ,  C23C2/40 ,  C23C22/66

CPC分类号： C23C22/66 ,  B21D22/022 ,  B21D35/005 ,  B32B15/012 ,  C22C21/00 ,  C22C21/02 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/18 ,  C22C38/38 ,  C23C2/12 ,  C23C2/20 ,  C23C2/28 ,  C23C2/40 ,  Y10T428/12611 ,  Y10T428/12757

摘要： [Object] To provide an Al-plated steel sheet used for hot pressing that has excellent lubricity in hot state, corrosion resistance after paint coating, and spot weldability. [Solution] An Al-plated steel sheet used for hot pressing according to the present invention includes: a steel sheet; an Al plating layer formed on one surface or both surfaces of the steel sheet; and a surface coating layer formed on the Al plating layer. The surface coating layer contains a zinc compound, and the zinc compound is deposited on the Al-plated steel sheet in an amount of equal to or greater than 0.3 g/m 2 and equal to or less than 1.5 g/m 2 as an amount of metallic zinc per one surface, and a zinc deposition amount in any continuous 1 mm 2 region is 1.5 g/m 2 or less.

摘要翻译： 本发明的目的是提供一种用于热压的镀铝钢板，其在热态下具有优异的润滑性，涂漆后的耐腐蚀性和点焊性。 [解决方案]根据本发明的用于热压的镀Al钢板包括：钢板; 在钢板的单面或两面形成的Al镀层， 以及在Al镀层上形成的表面涂层。 所述表面被覆层含有锌化合物，所述锌化合物以0.3g / m 2以上且1.5g / m 2以下的量堆积在所述镀Al钢板上 的金属锌，并且在任意连续的1mm 2区域中的锌沉积量为1.5g / m 2以下。

公开(公告)号：EP2762602A4

公开(公告)日：2015-09-02

申请号：EP12836371

申请日：2012-09-28

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： YAMANAKA SHINTARO ,  FUJITA SOSHI ,  SATO KOICHI

IPC分类号： C23C2/06 ,  B21B3/00 ,  C21D9/46 ,  C22C38/00 ,  C22C38/06 ,  C22C38/58 ,  C23C2/02 ,  C23C2/28

CPC分类号： C21D8/0263 ,  B21B3/00 ,  B32B15/01 ,  B32B15/013 ,  B32B15/18 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0463 ,  C21D8/0478 ,  C21D9/46 ,  C21D9/48 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/58 ,  C23C2/02 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  Y10T428/12799 ,  Y10T428/12958 ,  Y10T428/12972 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/24967

摘要： A high-strength alloyed hot-dip galvanized steel sheet obtained by subjecting the surface of a high-strength steel sheet to alloyed hot-dip galvanization, and formed from a steel sheet containing, in mass%, main components, and containing at least 40 vol% bainite and/or martensite, 8-60 vol% retained austenite, and less than 40 vol% ferrite, with the remainder comprising unavoidable structures. In the alloyed hot-dip galvanized steel sheet, the total thickness of the Gamma1 layer and the Gamma layer (Tgamma1+Tgamma) is 2 [mu]m or less in the alloy layers formed by hot-dip galvanization, and the Gamma1 phase/Gamma phase thickness ratio (Tgamma1/Tgamma) is 1 or less. A tensile strength of 980 MPa or above can be easily imparted to the alloyed hot-dip galvanized steel sheet. The alloyed hot-dip galvanized steel sheet has excellent coating adherence, and coating separation during machining can be suppressed.

公开(公告)号：EP3070187A4

公开(公告)日：2017-07-26

申请号：EP14874377

申请日：2014-12-17

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： MAKI JUN ,  YAMANAKA SHINTARO ,  IRIKAWA HIDEAKI

IPC分类号： C23C28/00 ,  B21D22/20 ,  C21D1/18 ,  C21D9/00 ,  C22C21/02 ,  C22C38/00 ,  C22C38/14 ,  C23C22/07 ,  C25D13/00 ,  C25D13/20

CPC分类号： B21D53/88 ,  B21D22/208 ,  C21D8/0278 ,  C21D8/0478 ,  C21D9/46 ,  C21D9/48 ,  C22C21/00 ,  C22C21/02 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C23C2/04 ,  C23C2/06 ,  C23C2/405 ,  C23C22/07 ,  C23C28/32 ,  C23C28/345 ,  C25D13/00 ,  C25D13/20

摘要： [Object] There are provided automobile parts and a method for manufacturing the automobile parts. The automobile parts have an excellent corrosion resistance after coated with a electrodeposition paint with smaller thickness, improve formability and productivity in hot pressing, and also improve chemical conversion treatability after hot press-forming. [Solution] An automobile part according to the present invention includes: a formed steel sheet having an intermetallic compound layer formed on a surface of the steel sheet, the intermetallic compound layer being formed of Al-Fe intermetallic compound having a thickness of 10 µm or more and 50 µm or less, the intermetallic compound layer including a diffusion layer positioned in closest proximity to the steel sheet, the diffusion layer having a thickness of 10 µm or less; a surface coating layer provided on a surface of the intermetallic compound layer, the surface coating layer including a coating containing ZnO and a zinc phosphate coating and having a surface roughness of 3 µm or more and 20 µm or less as a maximum profile height Rt in accordance with JIS B0601 (2001); and an electrodeposition paint film provided on a surface of the surface coating layer and having a thickness of 6 µm or more and less than 15 µm.

摘要翻译： 本发明提供汽车部件和汽车部件的制造方法。 汽车部件在涂覆厚度较小的电沉积涂料后，具有优异的耐腐蚀性，提高热压成形性和生产率，并且还提高热压成形后的化学转化处理性。 根据本发明的汽车部件包括：形成有钢板的表面上形成有金属间化合物层的成形钢板，所述金属间化合物层由厚度为10μm的Al-Fe金属间化合物形成或 所述金属间化合物层包括位于最接近所述钢板的扩散层，所述扩散层的厚度为10μm以下; 设置在所述金属间化合物层的表面上的表面涂层，所述表面涂层包括含有ZnO和磷酸锌涂层的涂层并且具有3μm以上且20μm以下的表面粗糙度作为最大轮廓高度Rt in 根据JIS B0601（2001）; 以及设置在所述表面涂层的表面上且具有6μm以上且小于15μm的厚度的电沉积涂膜。

公开(公告)号：EP2762603A4

公开(公告)日：2015-09-09

申请号：EP12837324

申请日：2012-09-28

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： YAMANAKA SHINTARO ,  FUJITA SOSHI ,  SATO KOICHI

IPC分类号： C23C2/06 ,  B21B3/00 ,  C21D9/46 ,  C22C18/04 ,  C22C38/00 ,  C22C38/06 ,  C22C38/58

CPC分类号： C23C2/02 ,  B32B15/013 ,  C21D8/0263 ,  C21D8/0426 ,  C21D8/0436 ,  C21D8/0473 ,  C21D8/0478 ,  C21D9/48 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C18/04 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  Y10T428/12799

摘要： A high-strength hot-dip galvanized steel sheet which includes a steel sheet that comprises major components and that contains at least 40 vol.% the sum of bainite and martensite, 8-60 vol.% retained austenite, and less than 40 vol.% ferrite, with the remainder comprising an incidental structure. The hot-dip galvanized steel sheet has, at the interface between the deposit layer formed by hot-dip galvanization and the base steel sheet, an intermetallic compound constituted of Fe, Al, Zn, and incidental impurities and having an average thickness of 0.1-2 [mu]m, the intermetallic compound having a crystal grain diameter of 0.01-1 [mu]m. After the deposit layer formed by hot-dip galvanization was removed, the surface of the base steel sheet has an arithmetic average roughness Ra of 0.1-2.0 [mu]m and gives a roughness curve in which the contour elements have an average length RSm of 5-300 [mu]m. Thus, a high-strength hot-dip galvanized steel sheet which includes a high-strength steel sheet as the base and which has excellent formability that can inhibit cracking or breaking is provided.

公开(公告)号：EP2463395A4

公开(公告)日：2016-06-22

申请号：EP10806517

申请日：2010-08-05

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： KOBAYASHI YOSHIFUMI ,  KAWANO KAZUYUKI ,  ITOH YASUNORI ,  SUZUKI SHINICHI ,  YAMANAKA SHINTARO

IPC分类号： C22C38/00 ,  B21D22/20 ,  B21D24/00 ,  C21D1/34 ,  C21D1/70 ,  C21D8/04 ,  C21D9/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C23C4/04 ,  C23C4/18 ,  C23C26/00

CPC分类号： C23C4/04 ,  C21D8/0494 ,  C21D2221/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C23C4/18 ,  Y10T428/12229

摘要： On part of a surface of a metal plate that is to be heated by radiant heat transfer with a near-infrared ray, a region where reflectance for a radiant ray is made lower than that of the original surface of the metal plate is formed. As reflectance reducing treatment, painting or thermal spraying in a blackish color, plating in a blackish color, treatment for increasing roughness of the surface of the metal plate, blasting, etching, blackening, surface layer quality changing treatment of the metal plate, or the like can be adopted. The metal plate is turned into a heated metal plate partially having a different temperature by being heated by radiant heat transfer, and thereafter, the heated metal plate is subjected to thermal processing accompanied by cooling, for example, by hot stamping.

摘要翻译： 在金属板的一个表面的一部分确实是通过用近红外线，在那里反射使辐射线是比金属板的原始表面的形成由下部的区域的辐射热传递来加热。 作为反射率降低处理，喷漆或热喷涂在一黑色的颜色，电镀在黑色系，疗程为增加粗糙度的金属板的表面的，喷砂，蚀刻，黑化处理，表面层的质量变化的治疗的金属板制成，或 等可以采用。 金属板是通过辐射传热被加热变成部分具有不同的温度加热的金属板，并且此后，被加热的金属板进行伴随着冷却，例如，通过热冲压热加工。

公开(公告)号：EP2840167A4

公开(公告)日：2016-01-13

申请号：EP13777775

申请日：2013-04-15

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： MAKI JUN ,  KUROSAKI MASAO ,  KUSUMI KAZUHISA ,  YAMANAKA SHINTARO

IPC分类号： B21D22/02 ,  B21D35/00 ,  B21D53/88 ,  B32B15/01 ,  B62D29/00 ,  C22C21/00 ,  C22C21/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C24/08 ,  C23C28/00

CPC分类号： B62D29/007 ,  B21D22/022 ,  B21D35/001 ,  B21D37/16 ,  B21D53/88 ,  B32B15/012 ,  C22C21/00 ,  C22C21/02 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C24/085 ,  C23C28/321 ,  C23C28/345 ,  C23C30/005 ,  Y10T428/12556 ,  Y10T428/12611

摘要： An Al-plated steel sheet includes: a steel sheet; an Al plating layer which is formed on one surface or both surfaces of the steel sheet and contains at least 85% or more of Al by mass%; and a surface coating layer which is laminated on the surface of the Al plating layer and contains ZnO and one or more lubricity improving compounds.

公开(公告)号：EP2762579A4

公开(公告)日：2015-07-08

申请号：EP12834788

申请日：2012-09-28

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： SATO KOICHI ,  YAMANAKA SHINTARO ,  FUJITA SOSHI

IPC分类号： C22C38/00 ,  B21B3/00 ,  C21D9/46 ,  C22C18/04 ,  C22C38/06 ,  C22C38/58 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28

CPC分类号： C22C38/06 ,  B32B15/013 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0284 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/005 ,  C22C18/00 ,  C22C18/04 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/12 ,  C22C38/14 ,  C22C38/38 ,  C23C2/02 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40 ,  Y10T428/12799

公开(公告)号：EP3085485A4

公开(公告)日：2017-08-23

申请号：EP14870854

申请日：2014-12-18

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： FUJIMOTO HIROKI ,  OIKAWA HATSUHIKO ,  YAMANAKA SHINTARO ,  IMAMURA TAKASHI

IPC分类号： B23K11/11 ,  B23K11/16 ,  B23K11/24

CPC分类号： B23K11/24 ,  B23K11/11 ,  B23K11/115 ,  B23K11/16 ,  B23K11/163 ,  B23K11/241

摘要： By superposing a plurality of steel sheets including a high tensile steel sheet and performing pulsation conduction by an inverter DC type spot welding power supply and controlling the conduction time of the current pulses, intervals of the current pulses, that is, conduction idle time, and weld current applied at the current pulses in a variable manner, the optimum weld conditions are obtained. For resistance spot welding of the hot stamped steel sheet, resistance spot welding with a minimum weld current of a second pulsation step higher than the maximum weld current at a first pulsation step is used to suppress the occurrence of outer spatter and inner spatter and secure a broad suitable current range even if using an inverter DC power supply.

摘要翻译： 通过将包含高张力钢板的多个钢板重叠并通过逆变器DC型点焊电源进行脉动传导，并控制电流脉冲的导通时间，电流脉冲的间隔即导通空闲时间，以及 以可变方式施加在电流脉冲上的焊接电流，获得最佳焊接条件。 对于热冲压钢板的电阻点焊，使用在第一脉动步骤中具有比最大焊接电流高的第二脉动步骤的最小焊接电流的电阻点焊来抑制外部飞溅和内部飞溅的发生并且确保 即使使用逆变器直流电源，也能提供广泛的适用电流范围。

公开(公告)号：EP3020499A4

公开(公告)日：2017-04-26

申请号：EP14823032

申请日：2014-06-26

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： FUJIMOTO HIROKI ,  OIKAWA HATSUHIKO ,  YAMANAKA SHINTARO

IPC分类号： B23K11/11 ,  B23K11/16 ,  B23K11/24 ,  B23K101/18 ,  B23K103/04

CPC分类号： B23K11/245 ,  B23K11/115 ,  B23K11/16 ,  B23K2201/18 ,  B23K2203/04

摘要： A resistance spot welding method including: a pulsation process of clamping a sheet assembly of two or more overlapped steel sheets including at least one high tensile steel sheet using a pair of welding electrodes that are connected to a spot welding power source employing an inverter direct current method, and performing plural repetitions of current passing and current pass stopping, while pressing the steel sheets with the welding electrodes; and a continuous current pass process in which, after the pulsation process, current is passed continuously for a longer period of time than a maximum current pass time of the pulsation process, while pressing the steel sheets with the welding electrodes.

摘要翻译： 一种电阻点焊方法，其特征在于，包括：使用一对焊接电极夹持包括至少一个高强度钢板的两个或更多个重叠钢板的板组件的脉动过程，所述一对焊接电极连接到采用逆变器直流电的点焊电源 在用焊接电极对钢板进行加压的同时进行多次通电停止和通电停止， 以及连续通电处理，其中在脉冲处理之后，电流连续通过比脉动处理的最大电流通过时间更长的时间段，同时用焊接电极按压钢板。

公开(公告)号：EP3000916A4

公开(公告)日：2017-02-22

申请号：EP14795464

申请日：2014-04-17

申请人： NIPPON STEEL & SUMITOMO METAL CORP

发明人： YAMANAKA SHINTARO ,  MAKI JUN ,  KUROSAKI MASAO

IPC分类号： C23C2/12 ,  C22C21/00 ,  C22C38/00 ,  C23C2/28 ,  C23C10/30 ,  C23C28/00

CPC分类号： C23C10/30 ,  B32B15/01 ,  C22C21/00 ,  C23C2/12 ,  C23C2/28 ,  C23C28/321 ,  C23C28/345

摘要： An Al-based alloy plated steel material includes: a steel material and a coating layer formed on a surface of the steel material, wherein the coating layer includes an Al-based alloy plating layer containing, in mass%, not less than 10% nor more than 50% Fe and not less than 3% nor more than 15% Si, and formed on the surface of the steel material; a layer containing ZnO and formed above a surface of the Al alloy plating layer; and a ZnAl 2 O 4 layer with a thickness of not less than 0.05 µ m nor more than 2 µ m, formed between the Al alloy plating layer and the layer containing ZnO.