Title:
PRODUCTION METHOD FOR GALVANIZED STEEL SHEET AND GALVANIZED STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2012/042883
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a galvanized steel sheet with various properties such as corrosion resistance and adhesiveness and with excellent conductivity at low surface pressures. The galvanized steel sheet comprises: a prescribed resin emulsion (A); tetraalkoxysilane (B); at least one type of silane coupling agent (C) with at least one type of reactive functional group selected from an active hydrogen-containing amino group, an epoxy group, a mercapto group, and a methacryloxy group; a chelating agent (D); a vanadic acid compound (E); and a titanium compound (F). Said galvanized steel sheet has a pH value of 3 to 6 and is characterized by using a surface processing agent for galvanized steel sheets, which has been adjusted such that the solid content mass calculated based on the mass of each fulfills prescribed conditions, to coat the surface of the galvanized steel sheet to form a film with 200-1,000 mg/m2 adhesion per surface.
Inventors:
MATSUDA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
松田 武士 (〒11 東京都千代田区内幸町二丁目２番３号 ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
MATSUZAKI, Akira (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
松田 武士 (〒11 東京都千代田区内幸町二丁目２番３号 ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
MATSUZAKI, Akira (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
Application Number:
JP2011/005492
Publication Date:
April 05, 2012
Filing Date:
September 29, 2011
Export Citation:
Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 〒1000011, JP)
ＪＦＥスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 〒1000011, JP)
MATSUDA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
松田 武士 (〒11 東京都千代田区内幸町二丁目２番３号 ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
ＪＦＥスチール株式会社 (〒11 東京都千代田区内幸町二丁目２番３号 Tokyo, 〒1000011, JP)
MATSUDA, Takeshi (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
松田 武士 (〒11 東京都千代田区内幸町二丁目２番３号 ＪＦＥスチール株式会社 知的財産部内 Tokyo, 〒1000011, JP)
International Classes:
C23C22/40
Attorney, Agent or Firm:
SUGIMURA, Kenji (36F Kasumigaseki Common Gate West, 3-2-1 Kasumigaseki, Chiyoda-k, Tokyo 13, 〒1000013, JP)
Claims: