| 摘要 |
According to the invention, in order to produce cast parts having passage openings and having optimized mechanical properties with low equipment expense, the following work steps are performed a) providing a casting mold, in which at least one casting core for forming the passage opening is present, wherein the casting core is made of a molding material comprising a binder, which molding material decomposes under the influence of force or temperature, b) pouring the metal melt into the casting mold to the cast part, c) cooling the cast part in the casting mold to a temperature that is below the liquidus temperature of the metal melt but above a minimum temperature down to which a higher-tensile structure is formed when accelerated cooling is performed, d) producing a passage channel, that leads through the passage opening of the cast part, which passage channel opens at an outside of the casting mold, in that the binder of the molding material, from which the casting core forming the passage opening burns due to the heat input into the casting mold during the pouring of the metal melt into the casting mold, or in that the casting core forming the particular passage opening and the areas of the casting mold arranged in the extension of the casting core are at least partially mechanically destroyed, e) cooling the cast part in the casting mold while a cooling medium flows through the passage channel. |
