The main methods to improve the performance of steel include
1. Alloying: Adding a certain proportion of alloying elements to steel, such as manganese, chromium, vanadium, etc., these elements can form new compounds with steel, thereby improving the strength and hardness of steel.
2. Heat treatment: changing the structure and properties of steel through heating and cooling, thereby improving the strength and hardness of steel. Commonly used heat treatment methods include quenching, tempering, quenching and tempering, etc.
3. Cold working: Through cold rolling, cold forging and other methods, the steel produces elastic deformation energy during the plastic deformation process and converts it into lattice distortion energy, thereby improving the strength and hardness of the steel.
4. Surface hardening treatment: Improve the surface hardness by changing the chemical composition and microstructure of the steel surface. Commonly used surface hardening treatment methods include carburizing, nitriding, boronizing, etc.
5. Refining: Through refining technology, impurity elements in steel are removed, the purity of steel is improved, and the performance of steel is improved.
What role does ferrosilicon play in steelmaking?
Ferrosilicon acts as a deoxidizer in steelmaking.
During the steelmaking process, ferrosilicon is added to the molten steel and melted at high temperature to fully react with the molten steel, effectively removing oxygen from the molten steel and improving the purity and quality of the steel. Compared with other steelmaking additives, ferrosilicon has the advantages of high deoxidation effect, high alloying performance and environmental friendliness.
At the same time, ferrosilicon can also be used as an alloying element additive to improve the properties of steel.
