公开(公告)号：EP2366812B1

公开(公告)日：2019-08-14

申请号：EP09833249.7

申请日：2009-04-22

申请人： JFE Steel Corporation

发明人： MAKIMIZU, Yoichi ,  KAJIYAMA, Hiroshi ,  FUJITA, Sakae ,  YOSHIMI, Naoto ,  TADA, Masahiko ,  MASUOKA, Hiroyuki ,  HOSHINO, Katsuya ,  NAGOSHI, Masayasu

IPC分类号： C23C2/06 ,  C23C28/00 ,  C23C22/53 ,  C23C2/26 ,  C23C2/40 ,  C23C18/12

公开(公告)号：EP2620524B1

公开(公告)日：2015-08-12

申请号：EP11826576.8

申请日：2011-09-20

申请人： JFE Steel Corporation

发明人： IMOKAWA, Toru ,  KUBOTA, Takahiro ,  HAMADA, Etsuo ,  NAGOSHI, Masayasu

IPC分类号： C09D5/08 ,  C23C22/34

CPC分类号： C09D5/08 ,  C08G18/0814 ,  C08K3/11 ,  C08K5/54 ,  C09D5/084 ,  C09D5/086 ,  C09D175/04 ,  C23C22/44 ,  Y10T428/12569 ,  C08L61/12

摘要： The present invention provides a chromium-free surface treatment liquid which enables forming, on a metal material surface, a film excellent in corrosion resistance at bent portions of a steel sheet, solvent resistance, coating properties after alkaline degreasing, and sweat resistance. The surface treatment liquid contains a resin compound having a specific bisphenol skeleton, a cationic urethane resin emulsion, a silane coupling agent, an organic titanium chelate compound, a quadrivalent vanadyl compound, a molybdate compound, a fluorine compound, and water at predetermined proportions. The pH of the surface treatment liquid is in the range of 4 to 5.

公开(公告)号：EP2738279A1

公开(公告)日：2014-06-04

申请号：EP12820243.9

申请日：2012-07-25

申请人： JFE Steel Corporation

发明人： MAKIISHI, Noriko ,  NORO, Hisato ,  ISHIKAWA, Shin ,  IDE, Shinsuke ,  ISHII, Tomohiro ,  NAGOSHI, Masayasu

IPC分类号： C22C38/00 ,  C22C38/44 ,  C22C38/50 ,  C23F1/00 ,  C23F17/00 ,  C23G1/08 ,  C25F1/06 ,  H01M8/02 ,  C23C22/34 ,  H01M8/10

CPC分类号： H01M8/021 ,  C21D6/004 ,  C21D9/46 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/40 ,  C23G1/086 ,  C25F1/00 ,  Y02P70/56 ,  Y10T428/12993

摘要： Stainless steel for fuel cell separators are provided which exhibit stable contact resistance characteristics and excellent practical utility.
The stainless steel contains not less than 16 mass% of Cr. When the surface configuration of the stainless steel is analyzed with a scanning electron microscope at a spatial resolution of not more than 0.1 µm, the surface modulus is not less than 1.02. Preferably, the chemical composition further includes C: not more than 0.03%, Si: not more than 1.0%, Mn: not more than 1.0%, S: not more than 0.01%, P: not more than 0.05%, Al: not more than 0.20%, N: not more than 0.03%, Cr: 16 to 40%, and one or more of Ni: not more than 20%, Cu: not more than 0.6% and Mo: not more than 2.5%, the balance being Fe and inevitable impurities.

摘要翻译： 提供用于燃料电池分离器的不锈钢，其具有稳定的接触电阻特性和优异的实用性。 不锈钢含有不少于16质量％的Cr。 当扫描电子显微镜以不大于0.1μm的空间分辨率分析不锈钢的表面形状时，表面模量不小于1.02。 优选地，化学组成还包括C：不大于0.03％，Si：不大于1.0％，Mn：不大于1.0％，S：不大于0.01％，P：不大于0.05％，Al：不 大于0.20％，N：0.03％以下，Cr：16〜40％，Ni：不大于20％，Cu：不大于0.6％，Mo：不大于2.5％ 余量为Fe和不可避免的杂质。

公开(公告)号：EP2738277A1

公开(公告)日：2014-06-04

申请号：EP12819761.3

申请日：2012-07-25

申请人： JFE Steel Corporation

发明人： MAKIISHI, Noriko ,  NORO, Hisato ,  ISHIKAWA, Shin ,  IDE, Shinsuke ,  ISHII, Tomohiro ,  NAGOSHI, Masayasu

IPC分类号： C22C38/00 ,  C22C38/44 ,  C22C38/50 ,  C23C22/34 ,  C23F17/00 ,  C23G1/08 ,  C25F1/06 ,  H01M8/02 ,  C23F1/00 ,  H01M8/10

CPC分类号： H01M8/021 ,  C21D6/004 ,  C21D9/00 ,  C21D9/46 ,  C22C38/001 ,  C22C38/004 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/40 ,  C23G1/086 ,  C25F1/00

摘要： Stainless steel for fuel cell separators are provided which exhibit excellent contact resistance characteristics and practical utility. The stainless steel contains C: not more than 0.03%, Si: not more than 1.0%, Mn: not more than 1.0%, S: not more than 0.01%, P: not more than 0.05%, Al: not more than 0.20%, N: not more than 0.03%, Cr: 16 to 40%, and one or more of Ni: not more than 20%, Cu: not more than 0.6% and Mo: not more than 2.5%, the balance being Fe and inevitable impurities. According to X-ray photoelectron spectroscopy, the surface of the stainless steel contains fluorine and provides a 3.0 or higher ratio of the total of atomic concentrations of Cr and Fe in other than the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks to the total of atomic concentrations of Cr and Fe in the metallic forms calculated from data resulting from the separation of peaks of Cr and Fe into metallic peaks and peaks other than the metallic peaks.

摘要翻译： 提供用于燃料电池隔板的不锈钢，其具有优异的接触电阻特性和实用性。 不锈钢含有C：0.03％以下，Si：1.0％以下，Mn：1.0％以下，S：0.01％以下，P：0.05％以下，Al：0.20以下 ％，N：0.03％以下，Cr：16〜40％，Ni：不大于20％，Cu：不大于0.6％，Mo：不大于2.5％，余量为Fe 和不可避免的杂质。 根据X射线光电子能谱，不锈钢的表面含有氟，并且除了从分离Cr的数据得到的数据计算出的Cr和Fe的原子浓度的总和之外，还提供3.0以上的比例 Fe除金属峰以外的金属峰和峰以金属形式计算的Cr和Fe的原子浓度总和由金属峰和除了金属峰以外的峰分离而得到的数据计算得到。

公开(公告)号：EP2554707A1

公开(公告)日：2013-02-06

申请号：EP11762163.1

申请日：2011-03-14

申请人： JFE Steel Corporation

发明人： HOSHINO, Katsuya ,  KUBOTA, Takahiro ,  TADA, Masahiko ,  NAGOSHI, Masayasu ,  TANIMOTO, Wataru ,  KIJIMA, Hideo ,  HIGAI, Kazuhiko

IPC分类号： C23C2/26 ,  B21B1/22 ,  C23C2/06 ,  C23C22/06 ,  C23C28/00

CPC分类号： C23C2/26 ,  B21B1/22 ,  B21B2001/228 ,  C23C2/06 ,  C23C22/53 ,  C23C22/83 ,  C23C28/025 ,  C23C28/345

摘要： An object of the present invention is to make it possible, without necessitating an alkali pretreatment, to form a zinc oxide layer having excellent sliding properties on a hot dip galvanized steel sheet not subjected to alloying after galvanizing and thus having a relatively low degree of surface activity. Another object of the present invention is to make it possible to manufacture a hot dip galvanized steel sheet having higher area ratio of Zn oxide layer formed on a coating surface and larger thickness of the Zn oxide layer. Specifically, the present invention provides a method for manufacturing a hot dip galvanized steel sheet comprising: subjecting a steel sheet to hot dip galvanizing and subsequent temper rolling; bringing the steel sheet into contact with acidic solution having pH buffering capacity; retaining the steel sheet for 1 second to 60 seconds after the contact with the acidic solution; and rinsing the steel sheet with water, to form a zinc oxide layer on a coating surface of the steel sheet, characterized in that the method further comprising:
carrying out the temper rolling by either rolling the steel sheet first with a dull roll having Ra ≥ 2.0µm at rolling reduction rate ≤ 5% and then with a bright roll having Ra ≤ 0.1µm at rolling reduction rate ≤ 3% or rolling the steel sheet first with a bright roll having Ra ≤ 0.1µm at rolling reduction rate ≤ 3% and then with a dull roll having Ra ≥ 2.0µm at rolling reduction rate ≤ 5%.

摘要翻译： 本发明的目的是，在不需要碱预处理的情况下，可以在镀锌后不进行合金化的热浸镀锌钢板上形成具有优异滑动性的氧化锌层，从而具有相对低的表面度 活动。 本发明的另一个目的是使得可以制造具有在涂层表面上形成的较高面积比的Zn氧化物层和较大厚度的Zn氧化物层的热浸镀锌钢板。 具体而言，本发明提供一种热浸镀锌钢板的制造方法，其特征在于，包括：对钢板进行热浸镀锌和随后的回火轧制; 使钢板与具有pH缓冲能力的酸性溶液接触; 在与酸性溶液接触后将钢板保持1秒至60秒; 并用水冲洗钢板，在钢板的涂层表面上形成氧化锌层，其特征在于，还包括：首先用具有Ra‰的钝辊轧制钢板进行调质轧制 轧制压下率为2.0μm，碾压率为‰¤¤¤¤¤‰‰¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤¤ 率‰¤3％，然后在碾压率‰¤5％时，具有Ra‰¥2.0μm的钝辊。

公开(公告)号：EP2014783A1

公开(公告)日：2009-01-14

申请号：EP07742867.0

申请日：2007-04-26

申请人： JFE Steel Corporation

发明人： MASUOKA, Hiroyuki ,  TAIRA, Shoichiro ,  SUGIMOTO, Yoshiharu ,  YOSHIMI, Naoto ,  NAGOSHI, Masayasu ,  TANIMOTO, Wataru

IPC分类号： C23C2/26 ,  C23C2/06 ,  C23C2/28 ,  C23C22/53

CPC分类号： C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40 ,  C23C22/08 ,  C23C22/53 ,  Y10T428/12792 ,  Y10T428/12799 ,  Y10T428/26 ,  Y10T428/265

摘要： A method of manufacturing a hot dip galvannealed steel sheet, including the steps of: subjecting a steel sheet to hot dip galvanizing to manufacture a hot dip galvanized steel sheet; heating the hot dip galvanized steel sheet for alloying; subjecting the hot dip galvanized steel sheet to temper rolling; bringing the temper-rolled hot dip galvanized steel sheet into contact with an acid solution containing at least one ion selected from the group consisting of Zr ions, Ti ions, and Sn ions to thereby form an acid solution film on the surface of the steel sheet; after completion of the contact, a state where the acid solution film is formed on the surface of the steel sheet is held for at least 1 second; and washing with water the hot dip galvanized steel sheet after holding, to thereby form a Zn oxide layer having a thickness of 10 nm or more on the surface of the galvanized steel sheet. The hot dip galvannealed steel sheet has an oxide layer having an average thickness of 10 nm or more on the surface of the plated steel sheet.

摘要翻译： 一种制造热浸镀锌钢板的方法，包括以下步骤：对钢板进行热浸镀锌以制造热浸镀锌钢板; 加热热镀锌钢板进行合金化; 对热浸镀锌钢板进行回火轧制; 使回火热浸镀锌钢板与含有选自Zr离子，Ti离子和Sn离子中的至少一种离子的酸溶液接触，从而在钢板表面形成酸溶液膜 ; 接触完成后，在钢板表面形成酸溶液膜的状态保持至少1秒钟; 并在保持之后用水洗涤热浸镀锌钢板，从而在镀锌钢板的表面上形成厚度为10nm以上的Zn氧化物层。 热镀锌合金化热镀锌钢板在镀覆钢板的表面上具有平均厚度为10nm以上的氧化物层。

公开(公告)号：EP3112501B1

公开(公告)日：2020-11-04

申请号：EP15755983.2

申请日：2015-02-27

申请人： JFE Steel Corporation

发明人： HOSHINO, Katsuya ,  TAIRA, Shoichiro ,  NAGOSHI, Masayasu ,  HANADA, Kazutoshi

IPC分类号： C23C22/53 ,  C23C22/83 ,  C23C2/06 ,  C23C2/26 ,  C23C2/40 ,  C23C28/00

公开(公告)号：EP2186925B1

公开(公告)日：2018-08-01

申请号：EP08828941.8

申请日：2008-09-03

申请人： JFE Steel Corporation

发明人： MAKIMIZU, Yoichi ,  FUJITA, Sakae ,  YOSHIMI, Naoto ,  TADA, Masahiko ,  OOTSUKA, Shinji ,  MASUOKA, Hiroyuki ,  HOSHINO, Katsuya ,  KAJIYAMA, Hiroshi ,  NAGOSHI, Masayasu ,  TANIMOTO, Wataru ,  FUJIMOTO, Kyoko

IPC分类号： C23C22/53 ,  C23C2/26 ,  A61F13/511 ,  A61F13/514 ,  A61F13/513

CPC分类号： A61F13/511 ,  A61F13/5116 ,  A61F13/51305 ,  A61F13/51401 ,  C23C2/26 ,  C23C22/53 ,  Y10T428/12611 ,  Y10T428/12785 ,  Y10T428/12792 ,  Y10T428/12799 ,  Y10T428/265

摘要： A zinc-based metal plated steel sheet excellent in tribological properties during press forming is provided. An oxide layer containing crystalline 3Zn(OH) 2 ·ZnSO 4 ·xH 2 O is formed on a plated surface. The oxide layer has a thickness of 10 nm or more. The crystalline oxide layer is composed of 3Zn(OH) 2 ·ZnSO 4 ·3-5H 2 O.

公开(公告)号：EP2540865B1

公开(公告)日：2017-11-01

申请号：EP11747065.8

申请日：2011-02-25

申请人： JFE Steel Corporation

发明人： IMOKAWA, Toru ,  FUJIBAYASHI, Nobue ,  KUBOTA, Takahiro ,  HAMADA, Etsuo ,  NAGOSHI, Masayasu

IPC分类号： C23C22/40 ,  B05D7/14 ,  C09D5/08 ,  C09D7/12 ,  C09D161/12 ,  C09D175/04 ,  C23C22/42 ,  C23C22/44

CPC分类号： C09D175/04 ,  C08G2150/90 ,  C08K3/11 ,  C08K13/02 ,  C09D5/084 ,  C09D7/63 ,  C09D161/12 ,  C09D165/02 ,  C23C22/40 ,  C23C22/42 ,  C23C22/44 ,  C23C2222/20 ,  Y10T428/273 ,  C08K5/56 ,  C08L75/04

摘要： The present invention provides a chromium-free surface treatment agent, comprising: a resin compound having a specific bisphenol skeleton; cationic urethane resin emulsion; silane coupling agent; an organic titanium chelate compound; a quadrivalent vanadyl compound; a molybdic acid compound; and water, wherein these components are blended at predetermined ratios such that pH value of the surface treatment agent is in the range of 4 to 5. The one-pack type chromium-free surface treatment agent of the present invention exhibits good stability during storage and is capable of forming on a metal material surface a coating film excellent in corrosion resistance at a bending-processed portion of a steel sheet, solvent resistance and paintability after alkali degreasing.

公开(公告)号：EP3112501A1

公开(公告)日：2017-01-04

申请号：EP15755983.2

申请日：2015-02-27

申请人： JFE Steel Corporation

发明人： HOSHINO, Katsuya ,  TAIRA, Shoichiro ,  NAGOSHI, Masayasu ,  HANADA, Kazutoshi

IPC分类号： C23C22/83 ,  B32B15/04 ,  C23C22/06 ,  C23C22/53 ,  C23C28/00

摘要： Provided is a method for producing a galvanized steel sheet that exhibits a low sliding resistance during press forming, exhibits excellent degreasability even under stringent alkali degreasing conditions that involve a low temperature and a short line length, suppresses dissolution of the oxide layer formed, and is capable of suppressing occurrence of unevenness due to a washing treatment.
The method includes an oxide layer forming step of bringing a galvanized steel sheet into contact with an acidic solution containing sulfate ions, then holding the galvanized steel sheet in contact for 1 to 60 seconds, and then washing the galvanized steel sheet with water; and a neutralization treatment step of holding a surface of an oxide layer, which has been formed in the oxide layer forming step, in contact with an alkaline aqueous solution for 0.5 seconds or longer, and then performing washing with water and drying. The alkaline aqueous solution contains P ions at a P concentration of 0.01 g/L or more and carbonate ions at a carbonate ion concentration of 0.1 g/L or more.

摘要翻译： 提供一种在压制成形时表现出低滑动阻力的镀锌钢板的制造方法，即使在涉及低温和短线长度的严格碱脱脂条件下也显示出优异的脱脂性，抑制了形成的氧化物层的溶解，并且是 能够抑制由洗涤处理引起的不均匀的发生。 该方法包括使镀锌钢板与含有硫酸根离子的酸性溶液接触，然后将镀锌钢板保持接触1〜60秒，然后用水洗涤镀锌钢板的氧化物层形成步骤; 以及将在氧化物层形成工序中形成的氧化物层的表面与碱性水溶液接触0.5秒以上，然后进行水洗和干燥的中和处理工序。 碱性水溶液含有P浓度为0.01g / L以上的P离子，碳酸根离子的碳酸根离子浓度为0.1g / L以上。