Production technology of shot blasting machine steel shot

　　The process of steel shot granulation is the whole process. At present, the main methods are impact method, centrifugal method and atomization method.

　　The impact method uses high-speed and high-pressure water flow to break up the molten steel, causing the liquid metal to fall into the water to cool, solidify, and finally become pellets. The disadvantage of this method is that the hollow content of the steel shot is high and it is easy to form special-shaped shots.

　　The centrifugal method is to pour molten steel onto a high-speed rotating disc. There are many small holes around the disc. Under the action of centrifugal force, the molten steel flies out of the disc and falls into the water to cool into pellets. The pelleting effect of the centrifugal method is much better than that of the impact method, which greatly reduces the proportion of hollow steel pellets.

　　The atomization method is actually a combination of the impact method and the centrifugal method. First, the molten steel is placed on the surface of the rotating cone using special equipment to form a metal liquid film, and then atomized into fine droplets under the action of centrifugal force and surface tension and thrown out. , and at the same time, the cooling water is ejected along the position perpendicular to the movement direction of the molten droplets, so that the molten droplets are quickly cooled into pellets. The quality and comprehensive mechanical properties of the steel pellets produced by this method are very good.