Process for electro-tin plating

Details Process for electro-tin plating Process for electro-tin plating

1977-11-23

1980-01-01

Edmundson, F. C.

Chemistry: electrical and wave energy

Processes and products

204 54R, 204122, 204206, 204234, C25D 330, C25D 504, C25D 2115, C25D 1700

Patent

active

041815807

ABSTRACT:
A method for the electrolytic tinning of steel strip in an electrolytic bath wherein the steel strip is the cathode and insoluble anodes are used, the electrodes are immersed in an electrolyte solution containing tin ions and wherein the concentration of the tin ions in the bath is controlled by passing the solution exterior of the bath in contact with tin in particulate form, while simultaneously maintaining a high content of dissolved oxygen in the solution. This latter treatment replenishes the tin concentration of the solution and the thus replenished electrolytic solution can be returned to the bath in a manner so as to consistently maintain the tin ion concentration at the desired level.

REFERENCES:
patent: 652846 (1900-07-01), Hargreaves
patent: 791555 (1905-06-01), Hemingway
patent: 2304709 (1942-12-01), Rubin
patent: 2370973 (1945-03-01), Lang
patent: 2449422 (1948-09-01), Smith
patent: 2655473 (1953-10-01), Lowenheim
First International Tinplate Conference, London 1976 pp. 90-101.

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