C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/126, 204/15
C25D 5/00 (2006.01) C25D 3/22 (2006.01) C25D 5/08 (2006.01) C25D 7/06 (2006.01)
Patent
CA 1211404
ABSTRACT OF THE DISCLOSURE A method for treating a metal strip comprising the steps of: (1) moving a metal strip horizontally through a narrow treating space formed between hori- zontal upper and lower electrode devices facing each other, each device comprising at least one electrode insoluble in an electrolytic treating liquid to be applied, the treating space being divided into upper and lower horizontal gaps between said metal strip; (2) feeding upper and lower streams of the electrolytic treating liquid into the upper and lower gaps, respec- tively, through upper and lower slits, each extending horizontally across the corresponding electrode device at right angles to the direction of movement of the metal strip and each directed vertically to the corres- ponding surface of the metal strip at right angles to the surface of the metal strip, whereby each stream of the electrolytic treating liquid passed in the corres- ponding gap is divided into a pair of flows concurrent and countercurrent with the movement of the metal strip; (3) applying an electric current between each electrode and the metal strip.
392133
Ando Narumi
Hashimoto Yoshiaki
Kitazawa Yoshio
Oda Kito
Saiki Takashi
Goudreau Gage Dubuc
Nippon Steel Corporation
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