Manufacture of tinplate and tinplate containers

Details Manufacture of tinplate and tinplate containers Manufacture of tinplate and tinplate containers

1982-04-12

1984-05-01

Niebling, John F.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

204 35R, 204 40, 204 54R, C25D 548, B32B 1518

Patent

active

044461569

ABSTRACT:
Tinplate container with externally welded seam is formed of electrolytic unreflowed tinplate with external tin coating of low coating mass (less than 2 g/m.sup.2); the solderability of such tinplate being comparable with conventional reflowed tinplate of much higher coating mass. The unreflowed tinplate of low coating mass may be produced by Halogen electrotinning process in which ratio of fluoride ions to stannous tin ions in the rinsing section is maintained at unprecedented high level (not less than 10:1), the pH of the rinsing agent is maintained at less than 4 and the current density of the electrodeposition current is in the range 600 to 1,600 amperes per square meter of strip steel.

REFERENCES:
patent: 2585902 (1952-02-01), Gray
patent: 2648625 (1953-08-01), Buser
patent: 2758075 (1956-08-01), Swalheim
patent: 3655349 (1972-04-01), Shah et al.
patent: 3799750 (1974-03-01), Bird et al.
patent: 4145263 (1979-03-01), Tsutsui et al.

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