Container produced by triple drawn method using tin coated steel

Sheet metal container making – Method

Patent

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Details

220 62, B21D 5126

Patent

active

044390815

ABSTRACT:
A steel sheet container wherein the bottom wall is integral with the body and wherein the container is formed by a drawing operation with there being three drawings of the metal in sequence. Most particularly, the steel sheet has on the opposite surfaces thereof a coating of tin with the surfaces of the steel sheet being very smooth so as to permit the formation of the tin with a matte finish. The finish of the steel sheet should range generally from on the order of 10 microinch minimum to 30 microinch maximum.

REFERENCES:
patent: 2434290 (1948-01-01), Schutte
patent: 3174917 (1965-03-01), Lesney et al.
patent: 3367751 (1968-02-01), Halley et al.
patent: 3505040 (1970-04-01), Uchida et al.
patent: 3619247 (1971-11-01), Newport et al.
patent: 3934527 (1976-01-01), Saunders
patent: 4033274 (1977-07-01), Beese

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