Hot rolling is carried out at the recrystallization temperature of the rolling process.
Cold rolling is the temperature at which the plastic deformation temperature of cold rolling is recovered from the working temperature.
Immediately: A metal heat treatment process in which the metal is slowly heated to a certain temperature, held for a period of time, and then cooled at a rate (usually controlled slow decline, sometimes cooling).
Pickling: The workpiece is immersed in water such as sulfuric acid to remove such films on the metal surface. It is the pretreatment or treatment of electroplating process, enamel, rolling, etc.
