| 摘要 |
An unreflowed solderable electrolytic tinplate is produced by the Halogen process. Initially coatings of tin are applied on opposite faces of the strip steel(12) from an electrolyte containing stannous tin and fluoride ions. The material is then rinsed with an agent containing less than 8 g/l of fluoride ions and due to carry-over, stannous ions. 0.95-2.5 g/sq. m. of tin is applied on at least one of the strip faces, while the ratio of fluoride ions to stannous tin ions in the rinse solution, is not less than 10:1. Pref., the current density, during electrodeposition, is 600-1600(800-1200) amps/sq. meter.
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