The effect of cold rolling of packaging steel strip manufacturers on strip properties and subsequent processing

The effect of cold rolling of packaging steel strip manufacturers on strip properties and subsequent processing
　　Although cold rolling is mainly used to obtain the actual dimensions required by the rolled product, if the actual surface conditions and metallurgical conditions of the metal undergoing deformation are not changed, cold rolling cannot achieve the above-mentioned purpose. During the rolling of strip steel, its surface is usually covered with residues of rolling lubricating liquid, which makes the surface of strip steel relatively dirty, and defects directly caused by rolling on the cold rolling mill appear during the rolling. More importantly, as a result of this deformation, the metal produces work hardening or increases the hardness, and reduces the ductility.
　　Because of the further processing or use of sheet or strip steel, such as electroplating tin, its surface is required to be very clean, so all the residual rolling lubricant must be removed from the surface of the strip steel. At the same time, in order to restore the required metallurgical properties, the strip must be heat treated. However, as will be seen, the kinetics of these heat treatment processes are affected by the given strip reduction, and even after the heat treatment, the cold rolling reduction has an effect on the anisotropic properties of the strip and its texture. The impact is still obvious.
　　 briefly introduces readers to the manufacturing steps of the further processing of the strip after a cold rolling in the Guangan hot zone. These steps include cleaning, heat treatment, leveling, secondary cold rolling, foil rolling, shearing, trimming and slitting, metal and organic coating, embossing, cold bending and oiling. This chapter will also discuss some of the metallurgical issues in these processes. Several sections will also briefly introduce the processing of electrical steel and stainless steel.