HIGH-TEMPERATURE ALLOY PRESSURE CASTING MOLD AND CASTING PROCESS FOR IMPELLER AND GUIDE VANE

摘要

Disclosed is a high-temperature alloy pressure casting mold for an impeller and a guide vane. The high-temperature alloy pressure casting mold comprises a casting main pipe (1), a lower casting pipe (3), and forming steel mold assemblies (2), wherein the plurality of forming steel mold assemblies surround the casting main pipe, the casting main pipe is provided with a pressure device, the bottom of the casting main pipe is connected to a casting gate at the bottom of each forming steel mold assembly by means of the lower casting pipe, and casting is carried out using pressure supplied by the main pipe. Further disclosed is a high-temperature alloy pressure casting process for an impeller and a guide vane using the casting mold. By means of improvement of the mold structure, the casting mold can adapt to high-temperature alloy casting at a temperature of 1400°C or above, multiple sets of impellers and guide vanes can be formed at a time, and the production efficiency is improved; and by using a pressure supply design of the pressure casting main pipe, risers and shrinkage cavities are reduced, the quality of castings is improved, the process yield is also improved, and the production cost is reduced.