FIELD: production of casting molds.
SUBSTANCE: invention relates to production of a ceramic core having a shape with at least one first lateral ledge. Method comprises injection of a paste comprising a ceramic granulate and a polymer binder into a cavity of a mold for forming a part, which shape corresponds to rod shape with at least one additional lateral ledge adjacent to said first lateral ledge. Part is annealed and said extra lateral ledge is removed after burning.
EFFECT: as a result, internal stresses are reduced.
11 cl, 2 dwg
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