The use performance and mechanical properties of ball mill steel
The movement, the stress state and the working condition of the ball of the ball mill are decided by the performance of the steel ball. According to the mechanical analysis and wear failure mechanism of ball mill ball, the wear resistance of steel ball should be based on the hardness and toughness. Therefore, the mechanical properties of the steel ball should be:
First, ball mill ball has higher hardness and higher HV/E value, in order to resist the grinding of hard abrasive grain
Second, ball mill ball has enough toughness (KI) to resist impact and crack propagation
Third, ball mill steel ball has good anti fatigue ability, in order to resist the effect of alternating stress and impact fatigue wear.
Fourth, the ball mill ball of a certain heat resistance, in order to resist the temperature rise caused by the wear resistance of the ball.
Under the condition of wet grinding, the steel ball material has good corrosion resistance according to the nature of the medium. Because of the different wear mechanism to the steel ball wear resistance, therefore, the mechanical properties of the steel ball should be based on different types of wear and conditions of the conditions have been focused.