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    • 4. 发明公开
    • VEHICLE COMPONENT AND VEHICLE COMPONENT MANUFACTURING METHOD
    • FAHRZEUGKOMPONENTE UND FAHRZEUGKOMPONENTENHERSTELLUNGSVERFAHREN
    • EP3070187A4
    • 2017-07-26
    • EP14874377
    • 2014-12-17
    • NIPPON STEEL & SUMITOMO METAL CORP
    • MAKI JUNYAMANAKA SHINTAROIRIKAWA HIDEAKI
    • C23C28/00B21D22/20C21D1/18C21D9/00C22C21/02C22C38/00C22C38/14C23C22/07C25D13/00C25D13/20
    • B21D53/88B21D22/208C21D8/0278C21D8/0478C21D9/46C21D9/48C22C21/00C22C21/02C22C38/00C22C38/002C22C38/02C22C38/04C22C38/06C22C38/14C23C2/04C23C2/06C23C2/405C23C22/07C23C28/32C23C28/345C25D13/00C25D13/20
    • [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.
    • 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。
    • 10. 发明公开
    • SURFACE-TREATED ZINC BASED METAL PLATED STEEL PLATE AND METHOD FOR PRODUCTION THEREOF
    • 表面对锌类金属复合钢板和法处理用于生产
    • EP1518943A1
    • 2005-03-30
    • EP03738527.5
    • 2003-06-27
    • JFE Steel Corporation
    • HIGAI, Kazuhiko c/o JFE STEEL CORPRATIONSHIMIZU, Tomoyuki c/o JFE STEEL CORPORATIONKYOUNO, Kazuaki c/o JFE STEEL CORPRORATION
    • C23C22/07C23C22/53
    • C09D5/08B05D7/51C23C22/07Y10T428/12569Y10T428/12799
    • The application provides a surface-treated zinc series plated steel sheet containing a steel sheet having on a surface thereof a zinc series plated layer, and on the plated layer, a surface-treated film containing a reaction product of a metallic salt with the plated metal, and a resin in a mass proportion of from 1 to 50% by mass with respect to the metallic salt, wherein the surface-treated film has a layer mainly containing the reaction product having a thickness of from 0.02 to 3 µm, and the layer mainly containing the reaction product contains 20% by volume or more of the resin contained in the surface-treated film, and a process for producing the same. According to the invention, such a chromium free surface-treated zinc series plated steel sheet is obtained that is excellent in corrosion resistance of flat part, corrosion resistance after forming, electroconductivity and formability, as equivalent to a general-purpose chromate-treated zinc series plated steel sheet. According to the process of the invention, neither chromium nor chromium compound is used, and no special wastewater treatment is necessary in a coating process of a surface treating solution and upon using the surface-treated steel sheet thus obtained.
    • 本申请提供了经表面处理的锌系镀覆钢板含有具有在其表面上锌系列镀层钢板,与镀层上的表面处理膜含有金属的盐的反应产物与所述镀覆金属 ,并且在1至50%的质量比例按质量计相对于所述金属的盐,worin表面处理过的电影具有主要含有具有厚度为从0点02分至3微米的反应产物的层的树脂,并且 层主要含有反应产物中含有20体积%以上的包含在所述表面处理的电影中的树脂,以及用于生产它们的方法。 。根据本发明,寻求无铬表面处理的锌系镀覆钢板得到确实具有优异的平坦部分的耐腐蚀性,成形性,导电性和成型性后的耐腐蚀性,作为相当于一个通用铬酸盐处理锌系列 镀覆钢板。 。根据本发明的过程中,既没有铬也不铬化合物被使用,并没有特别的废水处理是必要的表面处理溶液的涂覆过程和在使用时的经表面处理的钢板如此获得。