US 12,338,520 B2
Pre-ageing systems and methods using magnetic heating
David Michael Custers, Inverary (CA)
Assigned to Novelis Inc., Atlanta, GA (US)
Filed by Novelis Inc., Atlanta, GA (US)
Filed on Aug. 17, 2022, as Appl. No. 17/820,322.
Application 17/820,322 is a division of application No. 15/716,577, filed on Sep. 27, 2017, granted, now 11,479,837.
Claims priority of provisional application 62/505,948, filed on May 14, 2017.
Claims priority of provisional application 62/400,426, filed on Sep. 27, 2016.
Prior Publication US 2023/0002876 A1, Jan. 5, 2023
Int. Cl. C22F 1/04 (2006.01); B21B 39/02 (2006.01); B21B 39/34 (2006.01); B21C 37/02 (2006.01); B21C 47/16 (2006.01); B21C 47/18 (2006.01); B21C 47/34 (2006.01); B21D 22/02 (2006.01); B21D 37/16 (2006.01); B65H 29/00 (2006.01); B65H 29/20 (2006.01); C21D 1/04 (2006.01); C21D 1/42 (2006.01); C22C 21/02 (2006.01); C22C 21/06 (2006.01); C22C 21/10 (2006.01); F27D 99/00 (2010.01); H05B 6/10 (2006.01); H05B 6/32 (2006.01); H05B 6/36 (2006.01); B65G 54/02 (2006.01); C22C 21/12 (2006.01); C22F 1/02 (2006.01); F27D 19/00 (2006.01); H02N 15/00 (2006.01)
CPC C22F 1/04 (2013.01) [B21B 39/02 (2013.01); B21B 39/34 (2013.01); B21C 47/16 (2013.01); B21C 47/18 (2013.01); B21C 47/3433 (2013.01); B21C 47/3483 (2013.01); B21D 22/022 (2013.01); B21D 37/16 (2013.01); B65H 29/006 (2013.01); B65H 29/20 (2013.01); C21D 1/42 (2013.01); F27D 99/0001 (2013.01); H05B 6/104 (2013.01); H05B 6/32 (2013.01); H05B 6/36 (2013.01); B21C 37/02 (2013.01); B65G 54/02 (2013.01); C21D 1/04 (2013.01); C22C 21/02 (2013.01); C22C 21/06 (2013.01); C22C 21/10 (2013.01); C22C 21/12 (2013.01); C22F 1/02 (2013.01); F27D 2019/0003 (2013.01); H02N 15/00 (2013.01); Y02P 10/25 (2015.11)] 17 Claims
OG exemplary drawing
 
1. A method of pre-ageing a metal strip comprising:
receiving the metal strip at a reheater, wherein the reheater comprises a magnetic rotor;
passing the metal strip adjacent the magnetic rotor of the reheater; and
rotating the magnetic rotor to induce a magnetic field into the metal strip to heat the metal strip at a pre-ageing temperature without a soak time, wherein the pre-ageing temperature is from greater than 60° C. to 150° C.