What are the causes of breakage in grinding steel balls?

1. Unqualified chemical composition: The unqualified chemical composition of the steel ball will directly affect its material properties, resulting in the ball being prone to breakage and out-of-roundness during use.

2. Steel quality: The inherent quality problems of steel, such as segregation, central porosity, and high levels of non-metallic inclusions, can affect the strength and wear resistance of steel balls, resulting in crushing.

3. Incorrect heat treatment process: Incorrect or poorly executed heat treatment process can lead to uneliminated internal stress in the steel ball, unreasonable metallographic structure, and high residual austenite, which can result in peeling and crushing during use

4. Operating conditions of the mill: factors such as the speed of the mill, the structure of the liner plate, and the degree of grading can also affect the wear and breakage of steel balls

Preventive and Remedial Measures:

Optimizing chemical composition: Ensure that the chemical composition of the steel ball meets the requirements and select high-quality raw material suppliers.

Improve heat treatment process: Ensure the correct implementation of heat treatment process, eliminate internal stress, and reasonably control the content of residual austenite.

Improve the quality of steel: strictly control the internal quality of steel, reduce segregation, central porosity and other issues.

Adjust the working conditions of the mill: optimize the speed of the mill, the structure of the liner, etc., to reduce the wear on the steel balls.

Control the quality of raw materials: ensure that the hardness, temperature, moisture, and other indicators of raw materials meet the requirements.

Through the above measures, the crushing phenomenon of steel balls in ball mills can be effectively reduced, and their service life and efficiency can be improved.