kylmävalssatut

Kylmävalssatut refers to a metalworking process where metal, typically steel, is rolled at or near room temperature. This process, known as cold rolling, differs from hot rolling, which occurs at elevated temperatures. Cold rolling is performed after the metal has already been hot rolled and cooled. The primary objective of cold rolling is to achieve a smoother surface finish, tighter dimensional tolerances, and increased strength and hardness in the finished product.

The process involves passing metal sheets or strips through a series of rollers under significant pressure. The deformation occurs at a temperature below the metal's recrystallization point. This plastic deformation introduces work hardening, making the metal stronger and harder but also less ductile. Cold rolling is often used for producing thin sheets, strips, and wire products where precise dimensions and a superior surface finish are critical.

Common applications for kylmävalssatut materials include automotive components, appliances, furniture, and construction materials. The resulting products exhibit excellent formability in subsequent shaping operations, provided the desired mechanical properties are achieved through cold working. The exact properties of kylmävalssatut steel can be further adjusted through annealing, a heat treatment process that can relieve internal stresses and restore some ductility if needed.