Steel shots, because of their special superior performance, are widely used in various fields, such as castings, forgings, and machined parts surface treatment and parts heat treatment surface treatment. Today I will introduce to you the selection criteria for shot blasting.

　　 1. Requirements for projectile materials

　　 1) Fast cleaning speed

　　 2) Stable quality

　　 3) Less consumption

　　 2. The relationship between density and life

　　 1) Hardness is proportional to cleaning speed, but inversely proportional to life. So the hardness is high and the cleaning speed is fast.

　　 2) Moderate hardness and excellent resilience, every corner in the blast can be fully cleaned, reducing processing time.

　　 3) The internal defects of the projectile such as blowhole cracks and internal shrinkage holes can affect its life and increase consumption.

　　 4) If the density is greater than 7.4g/cc, internal defects should be minimized.

　　 3. Selection criteria of projectile materials

　　 1) Appropriate hardness

　　 2) Adequate density

　　 3) Appropriate metallographic organization

The above is the information sharing brought to you by the steel pill manufacturers. For more related knowledge introduction, you can follow our official website!