What impact does the heat treatment of castings have on Rail Transit Casting?

The heat treatment of castings has a profound impact on Rail Transit Casting, covering several key aspects. First, heat treatment can significantly improve the overall performance of castings by improving the crystal structure, improving uniformity and purity, and optimizing mechanical properties. This not only enhances the wear resistance and durability of the casting, but also has a positive impact on the strength of the structure to withstand important loads such as train loads.

Heat treatment can also accurately control the hardness of castings, achieve precise control of hardness through quenching and other processes, and improve the wear resistance of castings. In addition, heat treatment helps relieve residual stress and improve the stability and fatigue resistance of castings. For castings operating in harsh environments, heat treatment can also improve corrosion resistance and extend service life.

Heat treatment can also adjust the grain size of the casting, thereby affecting its fine structure and improving its plasticity and toughness. This is critical to ensuring that the casting performs well in a variety of application scenarios.