Brief Overview Of Cold Rolled Coil And Production

Cold Rolled Coil Production Process

The cold rolled coil is made of hot rolled coil, and its production process usually passes through main processes such as raw material preparation, cold rolling, heat treatment, leveling and finishing.

 Cold Rolled Coil Product performance

The roll and the tablet are almost a cut package. The chilled coil is obtained by pickling and cold rolling the hot rolled coil. It can be said that it is a kind of cold rolled coil. Cold rolled coil (annealed state): The hot rolled coil is obtained by pickling, cold rolling, hood annealing, leveling, (finishing). There are 3 main differences between them:

1. In appearance, the general chilled coil is a bit sloppy.
2. Cold rolled sheets such as surface quality, structure and dimensional accuracy are better than chilled coils.
3. In terms of performance, the chilled coil obtained directly after the cold rolling process of the hot rolled coil is work hardened during cold rolling, resulting in an increase in yield strength and a part of internal stress remaining, and the external appearance is relatively "hard". It is called chilled coil.

Therefore, the yield strength: the chilled coil is larger than the cold-rolled coil (annealed state), so that the cold-rolled coil (annealed state) is more favorable for stamping. Generally, the default delivery status of cold rolled coils is annealed.