s a necessary process in ship manufacturing and repair, cleaning is mainly used in the two stages of steel plate pretreatment and sectional pretreatment of new ships, as well as rust removal and paint removal in ship repair. Although the current sandblasting process is relatively mature and efficient, it still has its technical defects. For example, the roughness of pretreatment exceeds the standard. Sandblasting process cannot be used on luxury cruise ships and other high-end ships. Its environmental pollution and physical damage to workers engaged in sandblasting operations for a long time can not be underestimated. The sand blasting process has serious pollution and is not environmentally friendly. Moreover, in addition to steel sand, this operation also consumes a lot of water, electricity and labor, which is easy to cause serious occupational diseases for workers engaged in sand blasting for a long time.