Cold-rolled coils are made of hot-rolled coils as raw materials and are cold-rolled below the work hardening temperature at room temperature. They include plates and coils and can be produced by many steel mills in China such as Anshan Iron and Steel, Wuhan Iron and Steel, Anshan Iron and Steel, etc. Among them, those supplied in sheets are called thick steel plates, also called box plates or tablets; those that are very long and supplied in reels are called steel chains, also called stainless steel sheets.
Definition of cold prick;
It is cold rolling under work hardening, but it is usually understood as cold rolling using cold rolling raw materials at room temperature. Aluminum cold rolling is divided into plate rolling and foil rolling. Those with a thickness of about --~ are called plates, and --~ are called the following It is foil. Most of the companies use 3 to 6 continuous extruders as cold rolling equipment.
Production process: Since no heating is carried out during the processing, defects such as black spots and iron oxide scale that often appear in hot rolling cannot be found, and the process performance is good and the smoothness is high. Moreover, the specifications of cold-rolled products are very precise, and the properties and structure of the products can meet certain unique application requirements, such as electromagnetic induction properties, low-alloy plate properties, etc.
Specifications: Thickness is 0.3-4mm, width is 700-20500mm, and steel plate length is 1150-60500mm.
Features: Mainly use high-carbon steel grades, which are required to have good cold drawing and electric welding properties, as well as necessary stamping die properties.
Main uses: Cold-rolled steel plates and strips are mainly used in a wide range of applications, such as the automotive industry, electrical products, rolling stock, airlines, hardware and machinery dashboards, food and canned fruits, etc.
Cold-rolled cold-rolled steel plate is the general name for general carbon steel cold-rolled steel plate. It is also called cold-rolled steel plate, also known as cold-rolled steel plate. Sometimes it is mistakenly written as cold-rolled plate. Cold-rolled steel plates are made from ordinary carbon steel hot-rolled steel strips and are cold-rolled into thick steel plates with a thickness less than 4mm. Because cold rolling at room temperature does not produce scale, therefore, cold-rolled steel plates have good process performance and high-precision specifications. Coupled with quenching treatment, their physical properties and usability are better than hot-rolled cold-rolled steel plates. In many industries, Especially in the household appliance manufacturing industry, it has gradually been used to replace hot-rolled cold-rolled steel plates.
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