Four steel grit extraction methods

The steel shot manufacturer introduces you to four steel grit extraction methods: Liaoning alloy steel shot

1. Water jet impact method

Using water jets, the liquid metal is scattered into the water to cool and solidify, and finally into pellets. The disadvantage of this preparation method is that it has a large hollow rate and is easy to form special-shaped pellets. By changing the cross-sectional shape of the nozzle, the flow rate and pressure of the water jet can be controlled, and the pelletizing rate can be effectively improved.

2. Rotating cone centrifugal atomization method

The combination of water jet and centrifugal method, the molten steel is passed through a certain device to form a metal liquid film on the surface of the rotating cone, and then atomized into fine droplets under the action of centrifugal force and surface tension and thrown out. ; At the same time, the cooling medium is sprayed out along a position perpendicular to the direction of movement of the droplets, so that the droplets can be quickly granulated. The prepared steel shot has good quality and comprehensive mechanical properties.

3. Centrifugal method

The molten steel flows to a special spin plate with a series of small holes around it rotating at a high speed. Under the action of centrifugal force, the liquid flies out of the spin plate and falls into the water to form pellets. The steel shot produced by centrifugal method has a higher shot rate than the water jet method, which greatly reduces the proportion of hollow shots.

4. Roller method

Pour the liquid metal onto the rotating drum, causing the liquid metal to splash, and then fall into the water to form pellets. However, this method has been eliminated due to the poor rate of steel shot particles prepared by this method.