Study on Instantaneous Impact Dynamic Behavior and Application of Shot Blasting Blades
The derusting treatment of marine steel is a key process affecting daily maintenance,and the wear and frac-ture of shot blasting blade is an important factor affecting the service life of derusting equipment.In this paper,the formation mechanism of blade wear fracture,nonlinear dynamic behavior of projectile impact and impact erosion process,and blade wear characteristics of shot blasting machine are reviewed.The vibration response and structural characteristics of blade un-der rotating softening effect are discussed.The relationship between crystal orientation,element content and blade wear is analyzed.According to wear mechanisms,such as friction,micro-cutting,fatigue crack,etc.,the corresponding quantitative models of impact erosion are studied.The application of simulation and experiment in the study of blade erosion by different projectile parameters is summarized.The instantaneous impact analysis technology of shot blasting blade is prospected.