A method of making a ceramic ornament having short undercuts...

B - Operations – Transporting – 28 – B

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B28B 1/14 (2006.01) B28B 7/34 (2006.01) B28B 7/36 (2006.01)

Patent

CA 2373428

A method of producing pottery ornament, that is densely covered with tiny edges and corners. The main step is to make resin prototype by silica-gel mould, that moulded by a base densely covered with tiny edges and corners. Cover and below parts of silica-gel mould are made separately by resin prototype. Then, slurry is poured into silica-gel mould, moisture of slurry is absorbed by cover part of mould, forming two parts of base with established thickness. Cover part of silica-gel mould is removed, slurry is applied into junction of two parts of base. After the slurry injunction is dried, the complete base is made. With high temperature sintering, the pottery ornament densely covered with tiny edges and corners is obtained.

L'invention concerne un procédé de production d'un décor qui est recouvert d'un grand nombre de bords et de coins. La principale étape consiste à produire le prototype en résine à l'aide d'un moule en silicagel qui permet de réaliser une base recouverte d'un grand nombre de petits bords et coins. Le couvercle et les parties inférieures du moule en silicagel sont constituées séparément par le prototype en résine. Ensuite la suspension est versée dans le moule en silicagel et l'humidité de cette suspension est absorbée par la partie couvercle du moule, formant deux parties de base d'une épaisseur déterminée. La partie couvercle du moule en silicagel est enlevée, la suspension est appliquée au niveau du raccordement des deux parties de la base. Une fois que la suspension insérée dans le raccordement est séchée, on obtient le décor sur poterie recouvert d'un grand nombre de petits bords et coins.

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