FIELD: foundry production.
SUBSTANCE: method for preparing a wax model used for high-precision investment casting includes applying a wetting solution to the surface of the model, drying the model in air, and sprinkling with electrocorundum powder. An ethanol-based composition containing castor oil and rosin is used as a wetting solution. After drying the model and forming a sticky layer, it is sprinkled with electrocorundum powder until the surface of the model is completely covered with the formation of a hydrophilic primer layer with a developed capillary structure.
EFFECT: uniform wetting of the model is ensured due to the formation of a primer hydrophilic ceramic layer on its surface, which allows the use of ceramic suspensions that do not contain surfactant-wetting agent or defoamer.
2 cl, 2 dwg, 1 ex
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