How to choose the right steel shot
1. Determine the steel shot mainly depends on the type of workpiece you want. Aluminum shot or stainless steel shot is generally used for non-ferrous metals; ordinary steel weldments, castings, steel, etc. use steel shots; the larger the diameter of the steel shot, the finished surface roughness The higher the efficiency, but the work efficiency is also very high; the irregular shape of the steel sand or steel wire pill cleaning efficiency is higher than the spherical pill, but the surface roughness is also high; the high-efficiency projectile wears the device quickly; It's just time to calculate, but it's not too fast compared to production efficiency; the hardness of steel shots is directly proportional to the cleaning speed, but inversely proportional to the life. Therefore, the higher the hardness of the steel shot, the faster the cleaning speed is, but the short life is consumed, so the hardness should be moderate (HRC40-50 is suitable). Select steel shots with moderate hardness and excellent resilience. It can reach every part of the cleaning room and reduce processing time.
2. In the production process, correctly adjust and frequently check the throwing angle of the throwing head to maximize the utilization of the steel shot and reduce the occurrence of empty throwing.
3. Timing supplementary feeding, and each feeding does not exceed 10% of the total amount of steel shots. In the production process, the particle size distribution of the steel shots is often checked to ensure that the steel pellets have the same level of grading, so as to ensure the cleaning efficiency and the surface quality of the castings. stable.