Formation of Cathodic Films on Zinc Plated Steel Sheet by Electrolysis of Aluminum Biphosphate Solution

  • WATANABE Takashi
    Nippon Steel Corp. Products Research and Development Laboratories
  • TARUMI Eiichi
    Nippon Steel Corp. Products Research and Development Laboratories
  • TSUDA Seizo
    Nippon Steel Corp. Products Research and Development Laboratories

Bibliographic Information

Other Title
  • 重リン酸アルミニウム浴による亜鉛メッキ鋼材の陰極電解化成処理について

Abstract

The formation of cathodic films on zinc plated steel sheet by electrolysis of aluminum biphosphate solution was studied. The corrosion resistance of zinc plated steel was promoted remarkably by the formation of this conversion coated thin film. The film provides good protection against rusting and improves the adhesion of paint as well. The formation of the conversion film was considerably affected by variation in the current density during electrolysis and pH. The effects of electrolytic conditions, such as current density and pH, on the formation of cathodic films were determined by measuring the potential-time curves and corrosion resistance to salt spray. It was found that the film was formed at a pH above 2.4 and at a current density above 2A/dm2. The film formed on zinc plated steel sheet was found to possess a high formability.

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Details 詳細情報について

  • CRID
    1390001204111332864
  • NII Article ID
    130003809649
  • DOI
    10.4139/sfj1950.27.246
  • COI
    1:CAS:528:DyaE28Xls1yksr0%3D
  • ISSN
    18843395
    00260614
    http://id.crossref.org/issn/00260614
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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