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US 12,338,520 B2Granted
Pre-ageing systems and methods using magnetic heating
AssigneeNovelis Inc.
InventorDavid Michael Custers
Life of this patent
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Abstract
Systems and methods of pre-ageing of a metal strip during metal processing include passing the metal strip adjacent a magnetic rotor of a reheater. The systems and methods also include heating the metal strip through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal strip such that the metal strip is heated.
Claims17
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.
1 more element
A method of pre-ageing a metal strip comprising:
- receiving the metal strip at a reheater, wherein the reheater comprises a magnetic rotor rotatable about an axis that does not intersect the metal strip;
- passing the metal strip adjacent the magnetic rotor of the reheater at a line speed greater than 0 m/min;
- rotating the magnetic rotor to induce a magnetic field into the metal strip to heat the metal strip at a pre-ageing temperature of greater than 60° C. to 150° C. and while the metal strip is moving by the magnetic rotor at the line speed.
A method of pre-ageing a metal strip comprising:
- receiving the metal strip at a reheater, wherein the reheater comprises a magnetic rotor rotatable about an axis extending parallel to a passline of the metal strip through the reheater;
- passing the metal strip adjacent the magnetic rotor of the reheater;
- receiving an operating parameter of the metal strip;
- rotating the magnetic rotor to induce a magnetic field into the metal strip to heat the metal strip at a pre-ageing temperature of greater than 60° C. to 150° C. and controlling heating from the magnetic rotor based on the operating parameter, wherein controlling heating comprises controlling at least one of a speed of the rotor, a direction of rotation of the rotor, or a distance between the magnetic rotor and the metal strip.
1 more element
Dependencies are inferred from the claim text.