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Inlet-outlet cover of a valve for a nuclear power station produced using investment casting. Investment casting is an industrial process based on lost-wax casting, one of the oldest known metal-forming techniques. [1] The term "lost-wax casting" can also refer to modern investment casting processes.
Lost-wax casting – also called investment casting, precision casting, or cire perdue (French: [siʁ pɛʁdy]; borrowed from French) [1] – is the process by which a duplicate sculpture (often a metal, such as silver, gold, brass, or bronze) is cast from an original sculpture. Intricate works can be achieved by this method.
Then, the clay is fired and the wax melts (thus "lost wax"). Molten metal is then poured into the clay mould to replace the burnt wax model. After the metal cools, the fired-clay model is opened to reveal the finished product. The resulting cast object is a metal replica of the original wax model.
Lost-foam casting – Type of evaporative-pattern casting process; Lost-wax casting – Process by which a duplicate metal sculpture is cast from an original sculpture; Molding (process) – Shaping a liquid or plastic material by making it conform to a more rigid mold; Plaster casting (process) [18] – Sand casting process with use of plaster ...
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An aluminum can (British English: aluminium can) is a single-use container for packaging made primarily of an aluminum exterior with an epoxy resin or polymer coated interior. [1] It is commonly used for food and beverages such as olives and soup but also for products such as oil, chemicals, and other liquids.
The metal will flow down the sprue, into the mold cavity, and back up the riser (of which there may be several). Once the metal has cooled enough to solidify, the flask can then be separated again, and the sand removed to reveal the rough casting. The rough casting is separated from the sprue and riser(s) either by sawing them off, or just ...
Evaporative-pattern casting is a type of casting process that uses a pattern made from a material that will evaporate when the molten metal is poured into the molding cavity. The most common evaporative-pattern material used is polystyrene foam. [1] The two major evaporative-pattern casting processes are: [1] Lost-foam casting; Full-mold casting