Lost Wax Casting Ceramic Shell

A self supporting ceramic shell mould about 6mm thick is formed all around the wax.

Lost wax casting ceramic shell.

The surface detail reproducible is much smaller better as the silica has a much finer grain size. Whether ceramic shell or plaster is used to make the shell the wax is a positive which must disappear in order to create a cavity or negative for the bronze to fill. The wax pattern assembly is dipped into slurry of ceramic or any refractory coating material. Students will create a wax sculpture then invest and cast it in bronze.

This creates a hollow ceramic shell mold. Ceramic shell casting material for the production of ceramic shells for the investment casting process a slurry is created from combining a liquid binder refractory flours and sands. One wax is needed to make one shell mold for one casting. The oldest known example of this technique is a 6 000 year old amulet from indus.

Ceramic shell is another technique often used in art casting. The positive of the form to be cast in metal is first created in wax which is then dipped repeatedly in a silica slurry that slowly builds up to the desired thickness. The main form will be made by casting and combining two hollow wax shapes cast from plaster molds then. The shell bakes and the wax is melted lost from the shell.

Thus the phrase lost wax casting comes from the process of the wax being melted or lost from the shell. Students will use a variety of techniques for working with wax. Typical slurry consists of silica flour suspended in a solution of ethyl silicate. Intricate works can be achieved by this method.

A ceramic slurry made from colloidal silica and fused silica flour is used as the binder in this molding system. The ceramic shell mold is removed from the kiln and immediately the molten bronze is poured into the shell. Lost wax casting also called investment casting precision casting or cire perdue which has been adopted into english from the french is the process by which a duplicate metal sculpture often silver gold brass or bronze is cast from an original sculpture. The ceramic shell mold is a single use waste mold system.

Remet supplies all the casting materials to create high quality ceramic shells able to be customized to meet a wide range of casting applications for the full. The ceramic shell is placed in a kiln and fired. Sculpture crafted directly in wax cast using the lost wax ceramic shell technique. At the time of.

Thus the term lost wax step 7 casting.