FIELD: process engineering.
SUBSTANCE: invention relates to casting shaped casts (different-wall complex-shape casts) using casting moulds. Proposed method consists in feeding melt portions in the mould in definite time intervals. Melt portions are solidified solely from below by directed heat exchange between portion and mould and said heat exchange is controlled by temperature control instruments. Program of portion feed digital ACS control signals is developed to control portion volume and time intervals between portion feed with due allowance for computer simulation of melt solidification in mould. To determine portion volume, criterion of invariability of reduced portion R0 is used as relation of liquid melt portion volume V to area of portion chilled surface F, while time of feed next portion is defined from (60…80)%-th degree of previous portion solidification.
EFFECT: reduced amount of casting wastes.
3 cl, 5 dwg
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