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1. 发明公开

EP3266900A1 MOLTEN Al-Zn-Mg-Si-PLATED STEEL SHEET AND MANUFACTURING METHOD THEREFOR 有权转让
标题翻译：熔铸铝锌锰镁硅钢片及其制造方法
公开(公告)号：EP3266900A1
公开(公告)日：2018-01-10
申请号：EP16759061.1
申请日：2016-03-02
申请人： JFE Galvanizing&coating Co., Ltd , JFE Steel Corporation
发明人： OOI, Toshihiko , SATO, Yohei , TOBIYAMA, Yoichi , OKUMA, Toshiyuki , FURUTA, Akihiko , YOSHIDA, Masahiro , SUZUKI, Yoshitsugu , ANDO, Satoru , MATSUZAKI, Akira
IPC分类号： C23C2/12 , C22C18/04 , C22C21/10 , C22C30/06 , C23C2/28
CPC分类号： C23C2/06 , C22C18/04 , C22C21/10 , C22C30/06 , C23C2/12 , C23C2/28
摘要： Provided is a hot-dip Al-Zn-Mg-Si coated steel sheet having good corrosion resistance in flat parts and edge parts, and also having excellent worked part corrosion resistance. The hot-dip Al-Zn-Mg-Si coated steel sheet includes a base steel sheet and a hot-dip coating on a surface of the base steel sheet. The hot-dip coating includes an interfacial alloy layer present at an interface with the base steel sheet and a main layer present on the interfacial alloy layer, and contains from 25 mass% to 80 mass% of Al, from greater than 0.6 mass% to 15 mass% of Si, and from greater than 0.1 mass% to 25 mass% of Mg. The Mg content and Si content in the hot-dip coating satisfy formula (1): M Mg / M Si − 0.6 > 1.7 where M Mg represents the Mg content (mass%) and M Si represents the Si content (mass%).
摘要翻译：本发明提供一种在平坦部和端部具有良好的耐腐蚀性的热浸镀Al-Zn-Mg-Si系钢板，并且还具有优异的加工部耐腐蚀性。热浸镀Al-Zn-Mg-Si系钢板包含母材钢板和母材钢板表面的热浸镀层。热浸镀膜包括存在于与母材钢板的界面处的界面合金层和存在于界面合金层上的主层，并且包含25质量％至80质量％的Al，大于0.6质量％至 15质量％的Si和大于0.1质量％至25质量％的Mg。热浸涂层中的Mg含量和Si含量满足式（1）：MMg / MSi-0.6> 1.7，其中MMg表示Mg含量（质量％），MSi表示Si含量（质量％）。

2. 发明公开

EP2455509A1 HOT-DIP AL-ZN PLATED STEEL SHEET 有权
标题翻译： FEUERVERZINKTES AL-ZN-PLATTIERTES STAHLBLECH
公开(公告)号：EP2455509A1
公开(公告)日：2012-05-23
申请号：EP10780689.5
申请日：2010-05-27
申请人： JFE Steel Corporation
发明人： OOI, Toshihiko , NAKAMARU, Hiroki , OOTSUKA, Shinji , MASUOKA, Hiroyuki , YOSHIDA, Masahiro
IPC分类号： C23C2/12 , C22C18/04 , C22C21/10 , C23C2/06 , C23C2/28
CPC分类号： C23C2/12 , B32B15/012 , B32B15/013 , C22C18/04 , C22C21/10 , C23C2/06 , Y10T428/12757 , Y10T428/12799
摘要： A hot dip Al-Zn coated steel sheet exhibiting excellent corrosion resistance is provided. The Al content in a coated film is 20 to 95 percent by mass. Then, the Ca content in the above-described coated film is 0.01 to 10 percent by mass. Alternatively, the total content of Ca and Mg is 0.01 to 10 percent by mass. Furthermore, it is preferable that the coated film is composed of an upper layer and an alloy phase present at the interface to a substrate steel sheet, and Ca or Ca and Mg are contained primarily in the upper layer. Moreover, it is preferable that Ca or Ca and Mg include an intermetallic compound with at least one type selected from Zn, Al, and Si. In the case where Ca or Ca and Mg are contained in the coated film, as described above, these elements are contained in corrosion products generated in a bonded portion and exert effects of stabilizing the corrosion products and retarding proceeding of corrosion thereafter. Then, as a result, the corrosion resistance is improved.
摘要翻译：提供了表现出优异的耐腐蚀性的热浸镀铝锌钢板。涂膜中的Al含量为20〜95质量％。然后，上述涂膜中的Ca含量为0.01〜10质量％。或者，Ca和Mg的总含量为0.01〜10质量％。此外，优选的是，涂膜由上层和与基材钢板的界面存在的合金相构成，Ca或Ca和Mg主要包含在上层中。此外，优选Ca或Ca和Mg包括具有选自Zn，Al和Si中的至少一种的金属间化合物。在涂膜中含有Ca或Ca和Mg的情况下，如上所述，这些元素被包含在接合部分产生的腐蚀产物中，并且具有稳定腐蚀产物的作用并且此后延迟腐蚀进行。结果，耐腐蚀性提高。

3. 发明公开

EP2138599A1 HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING THE SAME 有权
标题翻译： HERCHFESTES FEUERVERZINKTES STAHLBLECH UND VERFAHREN ZU SEINER HERSTELLUNG
公开(公告)号：EP2138599A1
公开(公告)日：2009-12-30
申请号：EP08740312.7
申请日：2008-04-07
申请人： JFE Steel Corporation
发明人： TAKAGI, Shusaku , KAWABE, Hidetaka , HASEGAWA, Kohei , OOI, Toshihiko , OKITA, Yasuaki , SAKURAI, Michitaka
IPC分类号： C22C38/38 , C21D8/02 , C21D9/46 , C23C2/06 , C23C2/28
CPC分类号： C23C2/06 , C21D6/005 , C21D8/0426 , C21D8/0473 , C21D8/0478 , C21D9/46 , C21D9/48 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/28 , Y10T428/12799
摘要： A high tensile-strength galvanized steel sheet, comprising: C: at least 0.05% but less than 0.12%, Si: at least 0.01% but less than 0.35%, Mn: 2.0% to 3.5%, P: 0.001% to 0.020%, S: 0.0001% to 0.0030%, Al: 0.005% to 0.1%, N: 0.0001% to 0.0060%, Cr: more than 0.5% but not more than 2.0%, Mo: 0.01% to 0.50%, Ti: 0.010% to 0.080%, Nb: 0.010% to 0.080%, and B: 0.0001% to 0.0030%, the remainder being Fe and unavoidable impurities, wherein the high tensile-strength galvanized steel sheet has a microstructure that contains 20% to 70% by volume ferrite having an average grain size of 5 µm or less. The high tensile-strength galvanized steel sheet has a tensile strength of at least 980 MPa, and excellent formability and weldability.
摘要翻译：一种高拉伸强度的镀锌钢板，其特征在于：C：0.05％以上且0.12％以下，Si：0.01％以上且0.35％以下，Mn：2.0％〜3.5％，P：0.001％〜0.020％，S：0.0001〜0.0030％，Al：0.005〜0.1％，N：0.0001〜0.0060％，Cr：大于0.5％，以下，2.0％以下，Mo：0.01〜0.50％，Ti：0.010％至0.080％，Nb：0.010％〜0.080％，B：0.0001％〜0.0030％，其余为Fe和不可避免的杂质，其中，高强度镀锌钢板具有含有20〜70体积％平均粒径为5μm以下的铁素体。高强度热镀锌钢板的拉伸强度为980MPa以上，成形性和焊接性优异。

4. 发明授权

EP2455509B1 HOT-DIP AL-ZN PLATED STEEL SHEET 有权
公开(公告)号：EP2455509B1
公开(公告)日：2019-03-27
申请号：EP10780689.5
申请日：2010-05-27
申请人： JFE Steel Corporation
发明人： OOI, Toshihiko , NAKAMARU, Hiroki , OOTSUKA, Shinji , MASUOKA, Hiroyuki , YOSHIDA, Masahiro
IPC分类号： C23C2/12 , C22C18/04 , C22C21/10 , C23C2/06 , B32B15/01

5. 发明授权

EP2138599B1 HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET AND METHOD FOR PRODUCING THE SAME 有权
公开(公告)号：EP2138599B1
公开(公告)日：2018-11-14
申请号：EP08740312.7
申请日：2008-04-07
申请人： JFE Steel Corporation
发明人： TAKAGI, Shusaku , KAWABE, Hidetaka , HASEGAWA, Kohei , OOI, Toshihiko , OKITA, Yasuaki , SAKURAI, Michitaka
IPC分类号： C22C38/38 , C21D8/02 , C21D9/46 , C23C2/06 , C23C2/28 , C22C38/00 , C22C38/22 , C22C38/02 , C22C38/28 , C22C38/26 , C22C38/32 , C22C38/06 , C21D6/00 , C21D8/04 , C23C2/02 , C21D9/48
CPC分类号： C23C2/06 , C21D6/005 , C21D8/0426 , C21D8/0473 , C21D8/0478 , C21D9/46 , C21D9/48 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/28 , Y10T428/12799
摘要： A high tensile-strength galvanized steel sheet, comprising: C: at least 0.05% but less than 0.12%, Si: at least 0.01% but less than 0.35%, Mn: 2.0% to 3.5%, P: 0.001% to 0.020%, S: 0.0001% to 0.0030%, Al: 0.005% to 0.1%, N: 0.0001% to 0.0060%, Cr: more than 0.5% but not more than 2.0%, Mo: 0.01% to 0.50%, Ti: 0.010% to 0.080%, Nb: 0.010% to 0.080%, and B: 0.0001% to 0.0030%, the remainder being Fe and unavoidable impurities, wherein the high tensile-strength galvanized steel sheet has a microstructure that contains 20% to 70% by volume ferrite having an average grain size of 5 µm or less. The high tensile-strength galvanized steel sheet has a tensile strength of at least 980 MPa, and excellent formability and weldability.

6. 发明公开

EP2957648A1 HOT-DIP Al-Zn ALLOY COATED STEEL SHEET AND METHOD FOR PRODUCING SAME 有权
标题翻译：维多利亚时代的ZE-BESCHICHTETES STAHLBLECH UND VERFAHREN ZUR HERSTELLUNG DAVON
公开(公告)号：EP2957648A1
公开(公告)日：2015-12-23
申请号：EP14746418.4
申请日：2014-01-24
申请人： JFE Steel Corporation
发明人： OOI, Toshihiko , OKUMA, Toshiyuki , FURUTA, Akihiko , YOSHIDA, Masahiro , MATSUZAKI, Akira , ANDO, Satoru
IPC分类号： C23C2/12 , C22C18/04 , C22C21/10 , C23C2/06 , C23C2/28
CPC分类号： C23C2/06 , B32B15/012 , C22C18/04 , C22C21/00 , C22C21/02 , C22C21/08 , C22C21/10 , C23C2/02 , C23C2/12 , C23C2/28 , C23C2/40 , Y10T428/12799
摘要： Disclosed is a hot-dip Al-Zn alloy coated steel sheet having good corrosion resistance in flat parts as well as good workability and thereby has excellent corrosion resistance in worked parts. In the disclosure, the upper layer of the hot-dip coating has a composition containing Al in an amount of 20 mass% to 95 mass%, Si in an amount of 10 % or less of the Al content, at least one of Ca and Mg, the total content of Ca and Mg being 0.01 mass% to 10 mass%, and the balance including Zn and incidental impurities, and the mean Vickers hardness of the hot-dip coating is 50 Hv to 100 Hv.
摘要翻译：公开了一种在平坦部件中具有良好的耐腐蚀性以及良好的加工性的热浸Al-Zn合金涂层钢板，从而在加工部件中具有优异的耐腐蚀性。在本发明中，热浸涂层的上层具有含有20质量％〜95质量％的Al，Al含量为10％以下的Si，Ca和 Mg中，Ca和Mg的总含量为0.01质量％〜10质量％，余量包括Zn和杂质，热浸镀层的平均维氏硬度为50Hv〜100Hv。

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