Working principle of spring-through reinforced shot blasting machine

Spring-strengthened shot blasting machine is a kind of equipment for spring surface treatment. Shot blasting is a specially designed process for improving the fatigue strength of components that are subjected to alternating stress. The impact of the high-speed projectile flow on the surface of the spring produces a cyclic plastic strain layer on the surface, which results in favorable changes in the microstructure of the surface of the spring and introduces a residual compressive stress field into the surface. Thereby, the fatigue fracture and stress corrosion fracture resistance of the spring are improved, and the reliability and durability of the spring are improved. Spring roller through-type intensified shot blasting machine. In the process of shot blasting, the adjustable speed conveying roller is electrically controlled to send springs or other annular products into the projectile area of the shot blasting machine room, and all surfaces of the body are affected by different coordinate directions. The strong and dense projectiles hit and rub, so that the oxide scale, rust layer and dirt on it will quickly fall off, and the surface of the spring will obtain a certain roughness and smooth surface. The workpiece is loaded and unloaded on both sides of the shot blasting room. According to modern metal strength theory, increasing the dislocation density inside the metal is the main direction to improve the strength of the metal. Practice has proved that shot blasting is an effective process method to increase the metal dislocation structure. This is of great significance for some metals that cannot be hardened by phase transformation (such as martensitic quenching) or require further strengthening on the basis of transformation hardening. Aviation, aerospace industry, automobiles, tractors and other parts require lighter weight, but the reliability requirements are getting higher and higher. An important process measure is to use shot blasting to improve the strength and fatigue strength of components.