What are the roles of heat treatment in the steel industry

Heat treatment plays a vital role in the steel industry, mainly including the following aspects:

1. Improve the organizational structure of steel: Heat treatment can change the grain structure and organizational state of steel, thereby improving the performance of steel, such as increasing hardness, strength, toughness, etc.
2. Eliminate residual stress: During the processing of steel, internal residual stress will be generated. Heat treatment can eliminate or reduce these stresses and improve the stability and durability of the steel.
3. Adjust the properties of steel: Through heat treatment processes such as quenching and tempering, the properties of steel can be adjusted to adapt to different engineering requirements, such as improving wear resistance, corrosion resistance, etc.
4. Improve processing performance: After appropriate heat treatment, the processing performance and work hardening performance of steel will be improved, thereby improving processing efficiency and reducing costs.
5. Improve the surface quality of steel: Heat treatment can improve the surface quality of steel, improve the surface finish and flatness, and facilitate subsequent surface treatment and application.

In general, heat treatment is an indispensable process in the steel industry. By accurately controlling heat treatment parameters and process flow, steel can achieve the performance required by the design and expand the application range of steel.