METHOD FOR PRODUCING CAST PRODUCT, CAST PRODUCT PRODUCTION DEVICE, AND MOLD

原文（中国語）

A production method includes a preparation step of preparing a mold including a fixed mold and a movable mold, disposing a pipe in the mold such that an injection opening and a discharge opening are exposed outside from the mold, closing the mold, injecting an incompressible fluid into the injection opening to fill a third flow path of a main portion of the pipe with the incompressible fluid, filling a molding space formed by the movable mold and the fixed mold with a melted metal material, discharging the incompressible fluid in the third flow path from the discharge opening, and separating the movable mold from the fixed mold to open the mold and extracting a cast product having the incompressible fluid discharged from the third flow path.