The cleaning effect of the steel pipe inner wall shot blasting machine can be evaluated by the following aspects:

Shot parameters: The type, size and hardness of the shot have a significant impact on the cleaning effect. For example, cast steel shot has a higher hardness and is suitable for removing harder oxide scale and rust layer; wire cut shot has better toughness and wear resistance and is suitable for multiple use. The larger the size of the shot, the stronger the impact force, which is suitable for removing thick layers of dirt, but may leave deeper marks; smaller size shots are suitable for occasions requiring higher surface quality.

Shot blasting machine parameters: Shot blasting speed, angle and time have a direct impact on the cleaning effect. High shot blasting speed can improve the cleaning effect, but may increase equipment wear and energy consumption; the appropriate shot blasting angle can ensure that the shot evenly covers the inner wall of the steel pipe; the longer the shot blasting time, the better the cleaning effect, but the production cost and production efficiency need to be balanced.

Steel pipe parameters: The material, diameter and length of the steel pipe will also affect the cleaning effect. Steel pipes of different materials react differently to the projectiles. The material characteristics of the steel pipes should be considered when selecting appropriate shot blasting parameters. Steel pipes with smaller diameters or longer lengths may be difficult to fully cover, affecting the cleaning effect.

‌Working environment‌: Temperature and humidity have an impact on the performance of the projectiles and the stability of equipment operation. In a high temperature and high humidity environment, the projectiles are prone to rust, affecting the cleaning effect.

‌Evaluation method‌:

‌Appearance inspection‌: Visually inspect the cleanliness and surface roughness of the inner wall of the steel pipe to evaluate the cleaning effect.

‌Surface roughness measurement‌: Use a surface roughness meter to detect the shot blasting effect on the surface of the workpiece and evaluate the surface cleaning quality.