Methods of cooling an electrically conductive sheet during transverse flux induction heat treatment

A method comprising:

• (a) obtaining a sheet as feedstock,
• wherein the sheet is a non-ferrous alloy, and
• wherein the feedstock has a first edge and a second edge;
• wherein the first edge is opposite the second edge across a width of the sheet;
• (b) heating the feedstock using a transverse flux induction heating system having at least one transverse flux induction heater in the system to form a heat treated product;
• (c) concomitant with the heating step (b), while the feedstock is being heated within the at least one transverse flux induction heater and passing through the transverse flux induction heating system, cooling in the heater at least one of the first edge and the second edge of the feedstock by cross-flowing at least one fluid across the at least one of the first edge and the second edge of the feedstock;
• (i) wherein the at least one fluid comprises liquid water droplets generating water vapor;
• (ii) wherein the cross-flowing comprises flowing parallel to a plane of the sheet toward a sheet centerline, wherein the at least one fluid is delivered from at least one nozzle positioned apart from a side surface of the sheet in a direction parallel to the plane while the feedstock is being heated within and passing through the at least one transverse flux induction heater in the transverse flux induction heating system;
• and
• (iii) wherein the cooling step (c) produces a higher heat transfer at the at least one of the first edge and the second edge compared to a center portion of the sheet.