Method of making a container including an aluminum panel having

Details Method of making a container including an aluminum panel having Method of making a container including an aluminum panel having

1976-03-15

1977-07-12

Stallard, W.

Metal treatment

Compositions

Heat treating

148 115Q, 148 127A, 148127, B23P 306, C22F 104

Patent

active

040352013

ABSTRACT:
An improved container featuring an aluminum end or panel having a tear open portion defined by score lines provided in an aluminum composite having a core composed of an aluminum alloy consisting essentially of 1 to 7% of one or more elements selected of the group of up to 3% copper, up to 4% magnesium and up to 1.5% manganese, the balance essentially aluminum and an aluminum cladding layer consisting of aluminum and, optionally, some amount of zinc but less than 1% with the cladding facing the contents of the container. The solution potential of the core and cladding are controlled in order to achieve the desired protection. A thermal treatment can be employed to control the electrochemical performance of certain composites.

REFERENCES:
patent: 3310389 (1967-03-01), Doyle
patent: 3498849 (1970-03-01), Munday et al.
patent: 3502448 (1970-03-01), Anderson et al.
patent: 3787248 (1974-01-01), Setzer et al.
patent: 3850585 (1974-11-01), Webb
patent: 3857973 (1974-12-01), McKee et al.
patent: 3893823 (1975-07-01), Webb
patent: 3973921 (1976-08-01), Ward et al.

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