| 摘要 |
The invention relates to metallurgy. A method for producing castings includes placing inserts is a mold with modifying or alloying components, which are further melted, and subsequent casting molten metal in the mold, wherein the inserts are used in the form of separate elements and secured on predetermined areas of the mold namely in the areas of hazardous operating loads or possible destruction of the casting, while the inserts are secured at a distance A from the mold walls, which is defined by the relation A=(0,8-1,5)•D, where D - diameter or cross-sectional width of the insert. Use of the method allows at a minimum consumption of alloying or modifying agents to produce necessary structure and properties of the surface and adjacent layers of the specified sections of the casting, which ensures its increased service life. |
