Cold-rolled plates, the full name of cold-rolled steel plates and coils, are products made from hot-rolled coils as raw materials and rolled at room temperature and below the recrystallization temperature. The purpose of cold rolling is to obtain higher dimensional accuracy and surface finish, while meeting some special performance requirements.

Cold Rolled Plate Process Flow

The process flow of cold rolled plate mainly includes the following steps:

1.Hot rolling preparation: The basic material is hot-rolled steel coil, which requires phosphorus removal, peeling and other treatments to ensure the surface quality during the cold rolling process.

2.Cold rolling forming: hot-rolled steel coils are cold rolled multiple times, usually through multiple inverse cold rolling processes, to achieve the required thickness and surface quality. During the cold rolling process, the steel plate will be rolled multiple times by rollers, gradually becoming thinner, and the surface finish will also be significantly improved.

3.Recrystallization annealing: The cold-rolled steel plate will become brittle due to work hardening, and its plasticity and toughness need to be restored through the recrystallization annealing process. During the annealing process, the steel plate is heated to a certain temperature and held for a period of time to eliminate work hardening and restore the material's properties.

4.Finishing treatment: Planarize, straighten and trim the cold-rolled steel plate to further improve the dimensional accuracy and surface flatness of the product. This step ensures that the quality and appearance of the final product meet requirements.

Main Features and Applications

Features

1.High precision: Cold-rolled plates can meet high precision requirements in terms of thickness, width and length, meeting the needs of modern industry for high-precision materials.

2.Smooth surface: The cold rolling process makes the surface of the steel plate smoother and smoother, making it suitable for subsequent painting and electroplating processes.

3.Excellent performance: The steel plate treated by the cold rolling process has excellent strength, hardness and plasticity, and after annealing, its mechanical properties can be better adjusted.

4.Large energy consumption: Since multiple rolling and annealing treatments are required during the cold rolling process, the energy consumption is relatively large.

Quality Control

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Applications

1.Home appliance industry: The casings and internal parts of home appliances are often made of cold-rolled plates. Its excellent surface quality and processing performance make home appliances more beautiful in appearance and longer in service life.

2.Construction industry: Cold-rolled plates are used in the construction field to manufacture roof panels, wall panels, steel structures, etc. Its high strength and stability make building structures safer and more reliable.

3.Automobile manufacturing industry: Cold-rolled plates are used in automobile manufacturing to manufacture body, chassis and other components. Its high precision and excellent processing performance make automobile parts more refined and improve the comfort and safety of automobiles.

4.Electrical products: Cold-rolled plates are also widely used in electrical products, such as the manufacturing of motors, transformers and other equipment. Its excellent electromagnetic properties and processing properties make electrical product performance more stable and reliable.

Product Inventory

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