The production process of the ball press roll: First, the blank is made according to the roll skin drawing, and then the car is processed. 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 from the technical point of view: casting and forging. The steel grade 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 fine materials such as coal powder and clay. The steel number of the 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 ore powder.
The effect of the quality of the press roller on the ball press:
1. Whether the ball socket of the ball press roller is well connected, the two ball sockets must be facing. If the ball socket and the ball socket are not completely opposite, but the wrong position, then the ball you suppress will not be Elliptical, but two half-elliptical misalignment, which directly affects the strength and sphericity of the finished ball.
2. The gap between the two rollers is too large, and the raw materials cannot be directly pressed out of the roller by pressing, resulting in failure to form a ball.
3. If the roll skin is damaged, the joints of the two rolls will be very large, so that many raw materials can not be directly pressed into balls, but directly passed through the ball socket of the roll skin and directly conveyed out, thus causing kaolin pressure. The ball shooting rate is not high.
