Precautions for correct selection of alloy steel shot

　　The determination of alloy steel shot mainly depends on the workpiece you want to clean: aluminum shot or stainless steel shot is generally used for non-ferrous metals; steel shot is used for ordinary steel weldments, castings, steel, etc.; the larger the diameter of the steel shot, the higher the surface roughness after cleaning. But the cleaning efficiency is also high; moreover, the cleaning efficiency of irregularly shaped cast steel grit or steel wire cut shot is higher than that of spherical shot, but the surface roughness is also high; the shot with high cleaning efficiency also wears the equipment faster (relatively); just The use time is calculated, but compared with the production efficiency, the wear is not fast: the hardness of the alloy steel shot is directly proportional to the cleaning speed, but inversely proportional to the service life. Therefore, the higher the hardness of the steel shot, the faster the cleaning speed for a long time, but the short service life consumes a lot, so the hardness should be moderate (about HRC40-50 is appropriate) and the use effect is good. Select the steel shot with moderate hardness and excellent resilience, which can reach every place in the cleaning room and can also reduce the processing time.

　　1.Internal defects of projectile materials such as air hole cracks and internal shrinkage cavities can affect its life and increase consumption.

　　2. Hardness is directly proportional to cleaning speed, but inversely proportional to life. Therefore, the hardness is high, the cleaning speed is fast, but the life is short and the consumption is large, so the hardness should be moderate (about HRC40-50 is appropriate) and the effect is good.

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

　　4. Moderate hardness, with excellent resilience, so that the steel shot can reach every place in the cleaning room, reducing the processing time.