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  2. Plaster mold casting - Wikipedia

    en.wikipedia.org/wiki/Plaster_mold_casting

    The dried mold is then assembled, preheated, and the metal poured. Finally, after the metal has solidified, the plaster is broken from the cast part. The mold is usually damaged from the metal so reusing is usually not done. Discarded plaster can be recycled by grinding but care must be used since silica dust causes permanent lung damage. [1] [2]

  3. Casting - Wikipedia

    en.wikipedia.org/wiki/Casting

    Plaster and other chemical curing materials, such as concrete and plastic resin, may be cast using single-use waste molds as noted above, multiple-use 'piece' molds, or molds made of small rigid pieces or of flexible material such as latex rubber (which is in turn supported by an exterior mold). When casting plaster or concrete, the material ...

  4. Ceramic forming techniques - Wikipedia

    en.wikipedia.org/wiki/Ceramic_forming_techniques

    Ceramic shell casting techniques using silica, zirconia and other refractory materials are currently used by the metal parts industry for 'net casting', forming precision shell moulds for molten metal casting. The technique involves a successive wet dipping and dry powder coating or stucco to build up the mould shell layer.

  5. Plaster cast - Wikipedia

    en.wikipedia.org/wiki/Plaster_cast

    Plaster cast bust of George Washington by Jean-Antoine Houdon based on a life mask cast in 1786.. A plaster cast is a copy made in plaster of another 3-dimensional form. The original from which the cast is taken may be a sculpture, building, a face, a pregnant belly, a fossil or other remains such as fresh or fossilised footprints – particularly in palaeontology (a track of dinosaur ...

  6. Plaster - Wikipedia

    en.wikipedia.org/wiki/Plaster

    Plaster may be cast directly into a damp clay mold. In creating this piece molds (molds designed for making multiple copies) or waste molds (for single use) would be made of plaster. This "negative" image, if properly designed, may be used to produce clay productions, which when fired in a kiln become terra cotta building decorations, or these ...

  7. Ceramic mold casting - Wikipedia

    en.wikipedia.org/wiki/Ceramic_mold_casting

    Ceramic mold casting, also known ambiguously as ceramic molding, [1] is a group of metal casting processes that use ceramics as the mold material. It is a combination of plaster mold casting and investment casting. [2] [3] There are two types of ceramic mold casting: the Shaw process and the Unicast process. [4]

  8. Molding (process) - Wikipedia

    en.wikipedia.org/wiki/Molding_(process)

    A mold or mould is a hollowed-out block that is filled with a liquid or pliable material such as plastic, glass, metal, or ceramic raw material. [2] The liquid hardens or sets inside the mold, adopting its shape. A mold is a counterpart to a cast. The very common bi-valve molding process uses two molds, one for each half of the object.

  9. Injection moulding - Wikipedia

    en.wikipedia.org/wiki/Injection_moulding

    Filter for nozzle with a plastic toy next to it. Injection moulding is used to create many things such as wire spools, packaging, bottle caps, automotive parts and components, toys, pocket combs, some musical instruments (and parts of them), one-piece chairs and small tables, storage containers, mechanical parts (including gears), and most other plastic products available today.