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The wax now looks like the finished piece. Wax pieces that were moulded separately can now be heated and attached; foundries often use registration marks to indicate exactly where they go. Spruing. The wax copy is sprued with a treelike structure of wax that will eventually provide paths for the molten casting material to flow and for air to ...
Bronze casting showing sprue and risers. A sprue is a large diameter vertical channel through which liquid material is introduced into a mold. It connects the pouring basin to the runner.
Wax patterns are used in an alternative casting process called investment casting. A combination of paraffin wax, bees wax and carnauba wax is used for this purpose. In this case the wax "pattern" is melted out from the mould cavity which is normally a rigid plaster like material rather than sand, so the wax "pattern" can only be used once. [5]
In contrast to most foundries that have switched over to ceramic shell casting, Modern Art utilizes the lost-wax casting method for producing its large-scale work. [3] Workers first create a wax copy of the artist's original model and then apply a plastic coating to it. The mold is then fired in a kiln, which causes the wax to melt away. Molten ...
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Carbonless copy paper; Photographic processes: Reflex copying process (also reflectography, reflexion copying) Breyertype, Playertype, Manul Process, Typon Process, Dexigraph, Linagraph; Daguerreotype; Salt print; Calotype (the first photo process to use a negative, from which multiple prints could be made) Cyanotype; Photostat machine; Rectigraph