发明名称 AL-COATED STEEL SHEET HAVING EXCELLENT TOTAL REFLECTION PROPERTIES AND CORROSION RESISTANCE, AND METHOD FOR MANUFACTURING SAME
摘要 To provide an Al-coated steel sheet that is improved in total reflection characteristics, corrosion resistance, and appearance after subjecting to an anodizing treatment. [Means for Resolution] An Al-coated steel sheet containing a base steel sheet having on a surface thereof an Al-coated layer having an average thickness of 7 µm or more with an Al-Fe-Si based alloy layer intervening therebetween, a surface layer portion of the Al-coated layer extending from the surface thereof to a depth of 3 µm having an average Si concentration of 2.0% by mass or less, and preferably 1.3% by mass or less, and an area ratio of an Al-Fe based intermetallic compound phase occupying the surface of the Al-coated layer being 10% or less.
申请公布号 EP3034647(A1) 申请公布日期 2016.06.22
申请号 EP20140836187 申请日期 2014.07.07
申请人 NISSHIN STEEL CO., LTD. 发明人 FURUKAWA SHINYA;HATTORI YASUNORI
分类号 C23C2/12;B32B15/01;C21D1/26;C21D9/46;C22C21/00;C22C21/02;C22C38/00;C22C38/02;C22C38/04;C22C38/06;C22C38/14;C23C2/28;C23C2/40 主分类号 C23C2/12
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