FIELD: metallurgy.
SUBSTANCE: method for manufacturing models of foam polystyrene involves installing, at least, one element in the mould that improves the mechanical properties of the casting and is fixed in the model, filling in the polystyrene pellets and foaming the pellets in the mould. The mould is filled with stratified pre-foamed polystyrene pellets, and, at least, one fixable element is installed on the top of each layer, improving the mechanical properties of the casting. The surface of, at least, one fixed element improving the mechanical properties of the casting is preliminarily applied with the alloying elements or joints.
EFFECT: fixing the element that improves mechanical properties of the casting in the required parts of the model, depending on the requirements for casting.
9 cl, 5 ex
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