| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a galvanized steel sheet having various performances such as corrosion resistance and adhesiveness and excellent in conductivity at low contact pressures. <P>SOLUTION: In a production method for a galvanized steel sheet, a surface processing agent for a galvanized steel sheet is coated on a surface of a galvanized steel sheet, and is dried by heating to form a coating with a mass of deposit per one side of 200-1,000 mg/m<SP POS="POST">2</SP>. The surface processing agent includes: a prescribed resin emulsion (A); tetraalkoxysilane (B); at least one silane coupling agent (C) having at least one reactive functional group selected from among amino group containing active hydrogen, an epoxy group, a mercapto group, and a methacryloxy group; a chelating agent (D); a vanadic acid compound (E); a titanium compound (F); and water. Further, the surface processing agent has a pH of 3 to 6 and is adjusted such that a solid content mass calculated based on each mass satisfies specified conditions. <P>COPYRIGHT: (C)2012,JPO&INPIT |
