Factors affecting the strength of cast steel shot

　　The strength of cast steel shot is the key to determine the quality of the product, so we should always pay attention to the change of product strength in use, so as not to affect the use efficiency of cast steel shot. The factors of steel shot hardness are understood, and corresponding solutions are formulated. The strength of the cast steel shot is the key to determining the quality of the product, so we should always pay attention to the change of the product strength in use, so as to prevent the use efficiency of the cast steel shot from being affected. to understand the factors and to formulate corresponding solutions.

　　There are four factors that affect the strength of cast steel shot:

　　1. Size of cast steel shot: The larger the cast steel shot, the greater the impact energy, and the greater the strength of the cast steel shot, but the coverage of the cast steel shot is reduced. Therefore, under the premise that the required strength of the cast steel shot can be produced, it is advantageous to reduce the size of the cast steel shot as much as possible. In addition, the choice of cast steel shot size is also limited by the shape of the cast steel shot to handle the part, its diameter should not exceed half of the inner radius of the groove, and the cast steel shot size is generally selected between 0.2-3.0mm.

　　2. The hardness of cast steel shot: when its hardness is greater than the hardness of the part, the change of the hardness of the cast steel shot does not affect the strength of the cast steel shot. On the contrary, the reduction of the hardness value of the cast steel shot will reduce the strength of the cast steel shot.

　　3. Cast steel shot speed: The higher the cast steel shot speed, the stronger the cast steel shot will be, but the high speed will increase the amount of broken steel.

　　4. Injection angle: when it is in a vertical state, the strength of the cast steel shot is relatively high, so the cast steel shot is generally treated in this state. If it is limited by the shape of the parts, when the steel shot must be cast at a small angle, it should be appropriately increased Cast steel shot size and speed.

　　5.The amount of broken cast steel shot: the strength of the broken cast steel shot is low, so the broken shot should be removed frequently to ensure that the integrity of the cast steel shot is not less than 85%. In addition, the sharp-edged pellets can scratch the parts.