C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
204/110, 204/15
C25D 21/12 (2006.01)
Patent
CA 1308686
ABSTRACT Process for regulating the quantity of metal electrolytically deposited on a continuously travelling band to be coated in a coating plant comprising a plurality of tanks filled with electrolyte. In each tank there is a conductive bridge carrying anode forming metal bars. The process comprises determining experimental curves of the yield as a function of the strength of the supply current at each bridge of the plant, and collecting indications relating to which bridges are in operation and which out of operation, analog values of the current strength for each bridge and of the maximum strength of the current for all of the bridges are established. The velocity of the travel of the band is measured. Set values relating to the quantity of metal to be deposited are determined, and the total quantity of metal deposited is measured by means of a gauge employing a periodic scanning. The mean value of the quantity of metal measured by the gauge in each scan is measured, and a regulation model is established from the aforementioned data.
523178
Backelandt Bernard
Gythiel Jean-Claude
Piquet Daniel
Fetherstonhaugh & Co.
Usinor Aciers
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