Steel shot is a widely used abrasive in the industrial field, mainly used for metal surface treatment and strengthening. The following is a detailed introduction to steel shot, including its composition, manufacturing process, uses and advantages.
Composition of steel shot
Steel shot is usually made of high-carbon alloy steel, containing a certain proportion of carbon, manganese, silicon and other elements. The proportion of these elements can be adjusted according to the specific application requirements to meet different hardness and wear resistance requirements. Compared with steel sand, steel shot has a more uniform spherical design, which enables it to provide more stable impact force when used.

The manufacturing process of steel shot mainly includes the following steps:
1. Melting steel block
First, high-quality steel blocks are used for melting. This process is usually carried out in a high-temperature furnace to ensure that the steel is completely melted.
2. Spray molding
The molten steel is dispersed into tiny particles by high-pressure water spraying technology. This method can effectively form spherical shot bodies, and commonly used spraying methods include impact method and atomization method.
3. Heating purification
The formed shot body will be reheated to achieve the purpose of purification and homogenization. This step is to remove possible impurities and ensure the quality of the steel shot.
4. Quenching treatment
Finally, the heated shot is quenched to improve its hardness and wear resistance. Quenching is achieved by rapid cooling, which can enhance the physical properties of the steel shot.
Classification of manufacturing methods
The manufacturing process of steel shot can be divided into two main types:
Casting: by pouring molten metal into a mold and cooling it.
Forging: shaping the metal through mechanical pressure, usually used to improve the strength and toughness of the material.
This manufacturing process ensures that the steel shot has good wear resistance and sufficient toughness for a variety of industrial applications.
Main application areas of steel shot
Steel production:
Steel shot is used in steel mills to remove burrs and scales on freshly fired steel and steel plates to improve the surface quality and appearance of the product.
Foundry industry:
In foundries, steel shot is used to clean and polish castings to help remove sand and impurities on the surface, thereby improving the finish and strength of the castings.
Shipbuilding:
Shipyards use steel shot for surface treatment of ship hulls, removing rust and old paint to ensure the adhesion and durability of the coating.
Construction industry:
Steel structures need to be rust-free before construction. Steel shot can effectively clean the surface to meet the structural requirements stipulated by the state while reducing environmental pollution.
Automobile manufacturing:
In the automotive industry, steel shot is used for surface treatment of car bodies and parts to improve corrosion resistance and aesthetics.
Metal surface strengthening:
Steel shot is widely used in sandblasting and shot blasting processes to enhance the hardness and wear resistance of metal surfaces and extend the service life of products
Advantages of steel shot
Durability: Steel shot has a long service life and can withstand 2000 to 2900 impacts without breaking easily.
High cleaning efficiency: Due to its spherical design, steel shot can evenly apply impact force, quickly clean the metal surface, and improve work efficiency.
Economical efficiency: Although the initial cost is relatively high, due to its durability and high efficiency, long-term use can reduce the overall cost.
Conclusion
In short, steel shot is an excellent industrial abrasive suitable for a variety of metal surface treatment and strengthening processes. Its unique composition and manufacturing process make it play an important role in casting, steel production and other fields. When selecting abrasives, the best cleaning effect and economic benefits can be achieved by comprehensively considering the characteristics of steel shot and other abrasives (such as steel grit) according to specific needs.