vacuum casting

vacuum casting
the pouring of plastic material into an impression or mold, under conditions of lowered atmospheric pressure; the end of the mold distal to the sprue is subjected to a vacuum, allowing atmospheric pressure to force the casting material into the mold.

Medical dictionary. 2011.

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  • Vacuum casting — is a means of casting small metal parts or jewelry that have fine detail or for casting various plastic materials. A porous or vented mold is used and is placed on a table or container where vacuum is applied. The liquid to be cast will be driven …   Wikipedia

  • Vacuum casting — Vacuum casting. См. Вакуумное литье. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • vacuum casting — Смотри вакуумное литье …   Энциклопедический словарь по металлургии

  • vacuum casting — Смотри разливка в вакууме …   Энциклопедический словарь по металлургии

  • Casting (metalworking) — Casting iron in a sand mold In metalworking, casting involves pouring liquid metal into a mold, which contains a hollow cavity of the desired shape, and then allowing it to cool and solidify. The solidified part is also known as a casting, which… …   Wikipedia

  • Vacuum engineering — deals with technological processes and equipment that use vacuum to achieve better results than those run under atmospheric pressure. The most widespread applications of vacuum technology are: * Pyrolytic Chromium Carbide Coating * Antireflecting …   Wikipedia

  • Vacuum Arc Remelting — (VAR) is a secondary melting process for production of metal ingots with elevated chemical and mechanical homogeneity for highly demanding applications. [ Modeling for Casting Solidification Processing , by Kuang Oscar Yu,CRC; 1st edition… …   Wikipedia

  • Vacuum Induction Melting — is a process for melting metal under vacuum conditions using electromagnetic induction. It works by creating electrical eddy currents in the metal which heats the charge to melt it. This process is used for refining of high purity metal and… …   Wikipedia

  • Casting defect — A casting defect is an irregularity in the metal casting process that is undesired. Some defects can be tolerated while others can be repaired otherwise they must be eliminated. They are broken down into five main categories: gas porosity,… …   Wikipedia

  • casting — 1. A metallic object formed in a mold. 2. The act of forming a c. in a mold. centrifugal c. c. molten metal into a mold by spinning the metal from a crucible at the end of a revolving arm. ceramo metal c. a c. made of alloys containing or… …   Medical dictionary

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