Randall D Woodland

US Patent:

20050166657, Aug 4, 2005

Filed:

Jan 29, 2004

Appl. No.:

10/768210

Inventors:

Philip Epp - Marietta NY, US
Randall Woodland - Oswego NY, US
John Shuber - Fulton NY, US
William Oleyourryk - Oswego NY, US
Robert Duffy - Oswego NY, US

International Classification:

B21B031/08

US Classification:

072238000

Abstract:

An improved rolling procedure is used for forming aluminum alloy sheet product of critical quality, e.g. can body stock, in a hot rolling mill. The mill is of a type in which the rolls are changed on a routine basis at least once during a production week and a plurality of rolled products of different alloy compositions, including sheet product of critical quality, are fed through the hot rolling mill on a sequential basis. In the improved procedure, the aluminum alloy sheet product of critical quality is fed through the rolling mill within the first 72 hours of production time after the rolls have been changed. Also, the order in which different products are to be produced is selected such that products that generate sufficient heat during rolling to cause micro-annealing of the rolls are processed after the sheet product of the critical quality.