(19)
(11) EP 0 269 006 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.02.1989 Bulletin 1989/08

(43) Date of publication A2:
01.06.1988 Bulletin 1988/22

(21) Application number: 87117098.1

(22) Date of filing: 19.11.1987
(51) International Patent Classification (IPC)4: C23C 2/06, C23C 2/26, C23C 2/28, C23C 4/08, C23C 28/00
(84) Designated Contracting States:
DE FR GB

(30) Priority: 21.11.1986 JP 278172/86
01.04.1987 JP 80500/87
01.04.1987 JP 80501/87
03.04.1987 JP 81060/87
03.04.1987 JP 81062/87
03.04.1987 JP 81061/87
03.04.1987 JP 81063/87

(71) Applicants:
  • NIPPON MINING COMPANY LIMITED
    Tokyo (JP)
  • Nikko Aen Kabushiki Kaisha
    Kurobe-shi Toyama-ken (JP)

(72) Inventors:
  • Tomita, Masatoshi
    Korobe-shi Toyama-ken (JP)
  • Yamamoto, Susumu
    Korobe-shi Toyama-ken (JP)
  • Tominaga, Chikara
    Minato-ku Tokyo (JP)

(74) Representative: Schwan, Gerhard, Dipl.-Ing. 
Elfenstrasse 32
81739 München
81739 München (DE)


(56) References cited: : 
   
       


    (54) Colored zinc coating


    (57) A method of forming a colored zinc coating on an iron or steel surface in which base metal of iron or steel is hot-dipped in a bath of or sprayed with a zinc alloy consisting essentially of 0.1 - 0.8 wt % Mn and optionally up to 1.0 wt % Cn and up to 0.1 wt % Ti, and the balance zn and inevitable impurities; as well as a zinc alloy of the aforementioned composition for hot dipping or spraying to form a colored zinc coating on a base surface.





    Search report