The passing of sheet or strip that has previously been hot rolled and pickled through cold rolls, i.e. below the softening temperature of the metal. Cold Rolling makes a product that is thinner, smoother, and stronger than can be made by hot rolling alone.
a forming process in which metal is rolled or drawn through dies, usually at room temperature. This produces a product with certain advantages over hot rolled steel, such as tighter tolerances, increased properties, improved finish and straightness.
Forming method employed after hot rolling or strip casting. Here, the rolling stock is reduced to a specified thickness by applying pressure between two rolls in the roll gap of the cold rolling stand. The difference between this procedure and hot rolling has to do with the temperature: Cold rolling is always conducted at a temperature lower than the recrystallization temperature, which means it requires subsequent annealing. Cold rolling of stainless, acid and heat-resistant steel is generally carried out on a reversing multi-roll stand with small work rolls that allow for high thickness reduction, even with grades that are difficult to form.
Term applied to the operation of passing unheated metal through rolls for the purpose of reducing its gauge.
reduction of flatrolled steel by passing hot rolled coils between one or more sets of rolls
Forming process carried out following hot rolling or strip casting. The material is reduced to a predefined thickness in the roll gap of the cold rolling mill by the application of high pressure between two rolls. Tandem cold rolling mills for carbon steel consist of up to five closely spaced mill stands. The difference versus hot rolling is the temperature. In cold rolling, the forming temperature is always below the recrystallization temperature, which makes subsequent annealing necessary.
The process of moving unheated metal through pairs of roller dies to increase strength and reduce thickness. Expanded metal is flattened in the cold rolling process.
Passing sheet or strip at room temperature between a pair of rotating rolls. The reduction in thickness may be very bright, as in the finishing process applied to hot rolled sheets, or heavy as in the cold rolling of narrow strip.
The rolling of metal at a temperature below the softing point of the metal. This allows work hardening during forming.
Cold rolling is a metallurgical process in which metal is passed through a pair of rollers at a temperature below its recrystallization temperature. This process hardens the metal, by compressing and stretching the metal crystals. After the rolling process, the metal is annealed by heating it above the recrystallization temperature after every few rollings, to prevent it from becoming brittle and cracking.
