Title:
【発明の名称】金属表面処理方法
Document Type and Number:
Japanese Patent JP2950481
Kind Code:
B2
Abstract:
A method for the corrosion-prevention treatment of a metal suface comprises projecting onto a metal surface a shot-blast particulate material consisting of a core of iron or an iron alloy, an undercoat of a iron-zinc alloy and a top coat of zinc or a zinc alloy, thereby forming a coating film of zinc or the zinc alloy on the metal surface, and bringing the thus coated metal surface into contact with an aqueous suspension of silica and an aqueous solution containing ions of at least one metal selected among Ti, Zr, Mg, Ba, Sr, W, Ni, Co, Sn, Mo, and Mn.
Inventors:
ISHIZUKA KEIICHI
Application Number:
JP32575090A
Publication Date:
September 20, 1999
Filing Date:
November 29, 1990
Export Citation:
Assignee:
NIPPON DAKURO SHAMUROTSUKU KK
DOWA TETSUPUN KOGYO KK
DOWA TETSUPUN KOGYO KK
International Classes:
C23C4/18; C23C20/06; C23C22/34; C23C22/53; C23C22/68; C23C24/04; C23C28/00; (IPC1-7): C23C28/00
Attorney, Agent or Firm:
Naoki Fukumura