METHOD FOR PRODUCING STAINLESS STEEL FOR FUEL CELL SEPARATOR, STAINLESS STEEL FOR FUEL CELL SEPARATOR, FUEL CELL SEPARATOR, AND FUEL CELL
    5.
    发明申请
    METHOD FOR PRODUCING STAINLESS STEEL FOR FUEL CELL SEPARATOR, STAINLESS STEEL FOR FUEL CELL SEPARATOR, FUEL CELL SEPARATOR, AND FUEL CELL 有权
    用于生产用于燃料电池分离器的不锈钢,燃料电池分离器,燃料电池分离器和燃料电池的不锈钢的方法

    公开(公告)号:US20130302718A1

    公开(公告)日:2013-11-14

    申请号:US13979700

    申请日:2011-01-19

    IPC分类号: H01M8/02

    CPC分类号: H01M8/021 C23C8/80 C25F3/00

    摘要: A stainless steel for use in a fuel cell separator is produced by subjecting stainless steel containing 16 mass % or more of Cr to electrolytic treatment and thereafter to immersion treatment in a solution containing fluorine. The electrolytic treatment is carried out by anodic electrolyzation or by a combination of anodic electrolyzation and cathodic electrolyzation, and an anodic electrolytic quantity Qa and a cathodic electrolytic quantity Qc preferably satisfy Qa≧Qc. The solution containing fluorine preferably has a temperature of 40° C. or higher, and hydrofluoric acid concentration [HF] (mass %) and nitric acid concentration [HNO3] (mass %) satisfying [HF]≧0.8×[HNO3].

    摘要翻译: 通过对含有16质量%以上Cr的不锈钢进行电解处理,然后在含氟溶液中进行浸渍处理,制造用于燃料电池隔板的不锈钢。 电解处理通过阳极电解或阳极电解和阴极电解的组合进行,阳极电解量Qa和阴极电解量Qc优选满足Qa> = Qc。 含氟溶液优选具有40℃以上的温度,满足[HF] = 0.8×[HNO 3]的氢氟酸浓度[HF](质量%)和硝酸浓度[HNO 3](质量%)。