Thinly tin coated steel sheets having excellent rust resistance

Details Thinly tin coated steel sheets having excellent rust resistance Thinly tin coated steel sheets having excellent rust resistance

1988-05-19

1991-03-12

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

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

428648, 428658, 428659, 428679, B32B 1504, B32B 1518

Patent

active

049992589

ABSTRACT:
Surface treated steel sheets having excellent rust resistance and weldability, suitable for manufacturing various kinds of cans, produced by a process comprising applying 0.2 to 1 g/m.sup.2 of tin coating on a surface of a nickel coated cold rolled steel sheet, applying 0.01 to 0.3 g/m.sup.2 of zinc coating on the tin coating in such an amount that the ratio of the zinc coating amount to the tin coating amount is in a range from 2 to 30% by weight, and heating the coatings to alloy substantially all of the zinc into the tin coating layer with substantially no non-alloyed zinc left on the tin coating.

REFERENCES:
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patent: 3857684 (1974-12-01), Kubu
patent: 3997301 (1976-12-01), Yoshihara et al.
patent: 4143210 (1979-03-01), Hyner et al.
patent: 4190504 (1980-02-01), Usui
patent: 4296181 (1981-10-01), Nehra
patent: 4374904 (1983-02-01), Harvey
patent: 4490438 (1984-12-01), Tsuda

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