A Experimental Research On The Anti-erosion Material For Hydraulic Machinery

Hydraulic machinery used in many fields was badly eroded, but it was found that not enough has been done on the erosion mechanism and the anti-erosion material. By using a rotating jet erosion testbed, four kinds of materials were tested under different dynamics parameters. At the same time, aluminum bronze was tested under different size of sand particle. Some conclusions can been obtained after observing material surface by SEM. With the increase of Impacting velocity , the damage of material surface became serious and weight loss got bigger. With the increase of the impacting angle, the weight loss first increased and then decreased. At the same dynamics parameters, because surface damages of 06Cr19Ni10 and 45Cr are small, so 06Cr19Ni10 and 45Cr had the better anti-erosion performance. However, Q235 had worse anti-erosion performance. With the increase of sand size, the erosion of material surface got worse, and weight loss had an obviously change between 0.4mm and 0.5mm.