FIELD: foundry.
SUBSTANCE: invention relates to foundry. Centrifugal device for making a hollow lost-wax model comprises mould (1) with cavity secured by holder (2) to centrifuge rotor and steel puncheon (3) with stroke limiter (8). Puncheon is installed with possibility of movement in mould and comprises guide section adjacent to opposite part of mould cavity surface, and deforming section (6). Puncheon deforming section (6) surface is provided with thermal circuit (7), providing controlled heating of said surface to melting temperature of model material, which allows melting the layer of model material adjacent to the deforming section of the puncheon for extracting the puncheon from the formed lost-wax model.
EFFECT: extraction of puncheon deforming section from formed lost-wax model without distortion of its geometry.
1 cl, 2 dwg
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