Method for continuously electro-tinplating metallic material

Chemistry: electrical and wave energy – Processes and products

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204 541, C25D 706

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049369652

ABSTRACT:
A method for continuously electro-tinplating a metallic material comprising the steps of: using an acidic electro-tinplating solution containing phenolsulfonic acid or a salt thereof and tin ion, using an insoluble anode, and causing a DC electric current to flow between the insoluble anode and a metallic material, while replenishing the acidic electro-tinplating solution with tin ion, thereby forming a tinplating layer on the surface of the metallic material. The above-mentioned anode comprises an electric-conductive substrate, and a film comprising at least iridium oxide, formed on the surface of the electric-conductive substrate.

REFERENCES:
patent: 4181580 (1980-01-01), Kitayama

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