Heat treatment process and influencing factors of steel grit

　　Steel grit is a commonly used abrasive, and its performance and wear resistance are directly affected by the heat treatment process and influencing factors. Heat treatment is to change the structure and properties of steel grit through heating, insulation and cooling processes to obtain the required mechanical properties and wear resistance. The following are the processes and influencing factors of steel grit heat treatment:

　　1. Heat treatment process

　　1. Heating: Place the steel grit in a furnace for heating, raising its temperature to a certain level to cause structural changes within the grains.

　　2. Insulation: Keep it at a certain temperature for a period of time to stabilize the internal structure of the grains and give them a chance to recrystallize and precipitate.

　　3. Cooling: Through appropriate cooling methods, the organizational structure of the steel grit can be solidified and achieve the required hardness and wear resistance.

　　2. Influencing factors

　　1. Heating temperature: Heating temperature directly affects the recrystallization and precipitation process of steel grit grains. Too high or too low temperature will affect the performance of steel grit.

　　2. Heat preservation time: The length of heat preservation time determines the stability of the internal structure of the grain and has an important impact on wear resistance.

　　3. Cooling rate: The cooling rate will affect the structure morphology and grain size of the steel grit, thereby affecting the wear resistance and strength.

　　4. Heat treatment medium: Different heat treatment media will affect the cooling rate of steel grit, thereby affecting the final performance.

　　5. Heat treatment equipment: The performance and stability of the heat treatment furnace are directly related to the control of the heat treatment process and the quality of the steel grit.

　　The heat treatment process and influencing factors of steel grit directly determine its mechanical properties and wear resistance. Therefore, these parameters need to be carefully controlled in actual production to obtain steel grit products that meet the requirements.