FIELD: foundry.
SUBSTANCE: invention relates to foundry field. Facility contains ceramic mold, in the basis of which there are implemented inoculating cavity with located in it single-crystal seed, crystal cavity and conic starting cavity, connected to mold form, forming cast. Crystal cavity is implemented in the form of rectilinear and tapered part. Tapered part adjoin to inoculating cavity and is 1/3-1/4 part of whole length of crystal cavity. Sectional area bottom part of tapered crystal part is 0.5÷0.9 of surface area dummy bar.
EFFECT: it is achieved improvement of finished cast implemented ensured at the expense of probability excluding of dummy bar melting or originating on it arbitrary orientation grains.
1 dwg, 1 ex
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