FIELD: metallurgy.
SUBSTANCE: invention refers to foundry engineering. A refractory suspension is applied onto a unit of molten out models. Into composition of the suspension of the first layer there introduced is fine modifying agent - abrasive dust of polishing and grinding processing of items from alloys of ferrous metals in the quantity of 1-2 wt % of the suspension. Dusting with granular material, melting of models, drying, annealing of moulds and their placement into a screening thermostating device is performed. Shell-type moulds are filled with a metal melt and finishing operations are performed.
EFFECT: obtaining casts of high quality at provision of controlled crystallisation.
1 dwg, 1 ex
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