Producto
BALL MILLING SMALL SIZE BALLS
Molinos Trituradores / Grinding Mills
Molycop manufactures balls for grinding operations (using high carbon alloy steel bars as the raw material) through special bar heating, forging and heat treatment processes, the objective of which is to obtain optimum wear and impact resistance. The small ball series is used primarily for regrind or tertiary grinding operations in which high wear resistance is the main ball attribute required.
SIZES
Molycop manufactures small balls, less than 2 inch or 50mm. Common nominal sizes are 1.0, 1.25, and 1.5 inch or 25, 32, and 40mm. The tolerance for the mass of the balls is – 0; +20% overweight.
CHEMISTRY
The chemistry ranges for each diameter ball are designed to optimise the microstructure and hardness after appropriate heat treatment. The hardenability parameter Di, which depends on the chemistry, is equal to or larger than the diameter of the ball to be made with alloy. Careful selection of steel bar suppliers through agreed process assessment, process qualification and continuous monitoring of supplier capability, ensures ball chemistry is optimized within the specification. The mean composition may vary with the ball diameter