How is the normalized steel plate produced?
Normalizing is the process of heating a steel member to 30-50 degrees above the critical temperature and cooling it in stationary air after proper heat preservation. This process is called normalizing.
Normalizing, also known as normalizing, is to heat the workpiece between 727 and 912 degrees Celsius. 40~60min, after a period of heat preservation, is removed from the furnace and cooled by air or by spray, spray, or blow cooling. Its purpose is to make grain refinement and carbide distribution homogenization, to remove the internal stress of materials.
The main purpose of normalizing is to refine the structure, to improve the properties of the steel, and to obtain a structure close to the equilibrium state. Compared with the annealing process, the main difference between normalizing and annealing is that the cooling rate of normalizing is a little faster, so the production cycle of positive heat treatment is short. Therefore, when annealing and normalizing can meet the performance requirements of parts, normalizing shall be used as much as possible. Most medium and low carbon steel billets are usually treated with positive heat. General alloy billet material often adopts annealing, if normalizing, because the cooling rate is faster, make its normalizing higher hardness, is not conducive to cutting.
