Products Description
The high-tech steel is heated to a certain temperature and kept warm for a period of time, and then it is slowly cooled, which is called annealing. Annealing of high-construction steel is a heat treatment method of heating steel to the temperature of phase transition or partial phase transition, and slowly cooling after heat preservation.
The purpose of annealing is to improve the microstructure, homogenize the composition and refine the grain, improve the mechanical properties of steel and reduce the residual stress; At the same time, it can reduce the hardness, improve the plasticity and toughness, and improve the cutting performance.
Therefore, annealing and improving the organization defects and internal stress of the previous process, and preparing for the subsequent process, so annealing is a semi-finished heat treatment, also known as pre-heat treatment.
High-construction steel is mainly used in high-rise buildings, super high-rise buildings, long-span stadiums, airports, exhibition centers and steel structure plants and other large construction projects.
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