Process for the manufacture of continuous strip cast aluminum al

Metal treatment – Compositions – Heat treating

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148 115A, C22F 104

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active

045266255

ABSTRACT:
Non-galling, low earing can stock suitable for deep drawing and wall-ironing into can bodies is prepared from continuously cast aluminum alloy strip of an inch or less in thickness. The strip material is heated to a temperature of from 950.degree. to 1150.degree. F. for a time sufficient to homogenize the alloy. The homogenized strip material is cold rolled to effect a first reduction in sheet thickness of at least 25%. The cold rolled sheet is heated to a recovery temperature of up to about 550.degree. F., and subjected to a second cold rolling to effect a reduction in thickness of up to 50%. The cold rolled sheet product is heated to the recrystallization temperature and then subjected to effect a final reduction in thickness of at least 50% of the original thickness of the sheet to impart an H19 temper to the sheet.

REFERENCES:
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patent: 3930895 (1976-01-01), Moser et al.
patent: 4000009 (1976-12-01), Chatfield
patent: 4111721 (1978-09-01), Hitchler et al.
patent: 4126487 (1978-11-01), Morris et al.
patent: 4325755 (1982-04-01), Blade et al.
patent: 4334935 (1982-06-01), Morris

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