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3. Electrolytic tinning
3.1 General
Once the strip has been prepared by degreasing and pickling, it is cathodized in a Sn(II) stannous tin solution. Tin baths based on stannous tin, Sn(IV), are no longer used, as their higher operating cost compared with stannous baths was not justified. Ion discharge leads to the following Sn tin metal:
In addition to these stannous ions, the bath contains an acid to lower the pH and increase electrical conductivity, and an additive to increase operating flexibility. This notion, dear to the practitioner, actually covers the surface area of the temperature-current density diagram where the deposits formed are covering: outside this...
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Electrolytic tinning
Electrolytic chromium plating of black iron
Bibliography
References
Standardization
French Standards Association (AFNOR)
- Fer‐blanc et fer noir simple réduction en feuilles. Qualités, dimensions et tolérances. - NF A 36‐150 - 8‐83
- Fer‐blanc et fer noir simple réduction en bobines destinées à être découpées en feuilles. - NF A 36‐151 - 8‐83
- Fer‐blanc double réduction : feuilles. Qualités, dimensions et tolérances. - NF A 36‐152 - 8‐83
- Fer‐blanc double réduction en bobines destinées...
French manufacturers of electrolytic treatment lines
Clecim.
Dujardin, Montbard, Somenor (DMS)
Organizations
France
Chambre Syndicale des Producteurs de Fer‐Blanc et de Fer Noir, Paris.
Belgium
Centre d'Information de l'Étain, Bruxelles.
Great Britain
International Tin Research Institute, Uxbridge.
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