The duplex stainless steel diffuser for an underwater device has the characteristics of large size, complicated structure and high mechanical properties requirement, and the defects such as porosity, crack are easy to appear in the casting process, which is difficult to cast. Simulation was performed by using ProCAST software, the correctness of the process scheme was verified, and the process parameter of shakeout time was obtained. Through strict control of the production process, the qualified diffuser casting is obtained at first time. The internal quality and the dimensions of the casting...
