Khilkov

pp.1-14

A series of special experiments using castings of the simple configuration (slabs and bars) defines a value of the feeding zone of a butt end and makes it out as the regressional dependences of the feeding butt end zone on the characteristic sizes of this or that casting. Thus, considerable material and time expenditures are demanded to define the value of the feeding butt end zone to be used further, including calculation of directional solidification of castings. The paper offers a design procedure to calculate a zone of the feeding butt end via computing simulation of solidification in the casting mould thereby sharply reducing expenditures for searching the desirable values. To reveal spaces in the casting, staggered with shrinkable porosity, the new criteria of porosity developed in BMSTU are used. The paper shows a possibility to use the effective size as a characteristic parameter of casting for the regressional dependence of the feeding butt end zone thus providing this dependence universality and a possibility to use it for making any shaped casting, but not just the castings of a simple configuration.