The roller shell of the pressure ball machine is the core component of the pressure ball machine. The quality of the roller of the pressure ball machine directly determines the service life of the ball press. The hardness of the roller of the ball press is the most important parameter to measure the quality of the roll of the ball press. The hardness of the roll depends on the alloy steel number selected for the roll and the final heat treatment level.
The production process of the roller shell of the ball press: firstly, the blank is made according to the roll skin drawing, and then the car is processed to achieve a clear eight-face light. Next, the ball socket is engraved on the circumference of the roll skin. Of course, the size and shape of the ball socket need to be determined according to various factors such as the diameter of the roll skin and the material to be pressed.
The last process is heat treatment, which is also the most critical process. In the case of the same raw material of the roll, the hardness of the roll is determined by heat treatment.
Press ball machine roll type: press ball machine roll skin can be divided into two types, casting and forging. The steel number commonly used for casting roll skin is 65 manganese alloy, the cost is relatively low, but the hardness of the roll skin is not too high, not very wear-resistant, suitable for pressing pulverized coal, clay and other delicate and boring. The steel number commonly used for forged roll skin is 92 chrome molybdenum, which is relatively high in cost and cost, but the hardness of the roll skin is also relatively high, which can reach above HRC62, and is suitable for pressing rough materials such as iron powder and metal mineral powder.
