METHOD OF MANUFACTURING A MOLDING PUNCH Russian patent published in 2018 - IPC B28B7/34 

FIELD: technological processes.

SUBSTANCE: invention relates to the molding process of large-sized, complex profile ceramics from aqueous slurries. Method for manufacturing the forming punch comprises applying a layer of plastic material, for example gypsum, onto a metal framework, processing it to a predetermined profile and size, application of epoxy resin layer, holding until it dries completely and hardens, processing to the required dimensions and profile. At the same time, before application of epoxy resin, from 30 to 70 % of finely divided ceramic powder and from 0.5 to 3.0 % of alcohol are added to it. Processing of the hardened epoxy resin layer is carried out by grinding it with a diamond wheel. After that, the final surface of the punch is polished to the required roughness.

EFFECT: technical result is the simplification of the manufacturing technology of forming punches and the improvement of their surface quality.

1 cl, 1 dwg