die-casting

▪ industrial process

forming metal objects by injecting molten metal under pressure into dies, or molds. An early and important use of the technique was in the Mergenthaler Linotype machine (1884) to give line-long combinations of letters, but the appearance of the mass-production automobile assembly line gave die-casting its real impetus. Great precision is possible, and products range from tiny parts for sewing machines and automobile carburetors to aluminum engine-block castings.

The two major die-casting techniques differ only in how the molten metal is introduced: in the cold-chamber process, the metal is ladled into a chamber; a plunger impels the metal into the cold die cavity, in which it quickly hardens.

In the piston, or gooseneck, process the plunger and its cylinder are submerged in the molten metal, the metal being admitted through a hole in the top of the cylinder when the plunger is retracted; the advance of the plunger forces the metal into the die cavity as before. The die core is in position in the die cavity when the metal enters and fills the space around it; as soon as the metal hardens, the die core is retracted. The die is then opened, and the finished casting is ejected.

In modern die-casting the sequence is governed electronically.

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die casting — n. 1. the process of making a casting by forcing molten metal into a metallic mold, or die, under great pressure 2. a casting so made die caster n … English World dictionary
die casting — die casting, adj. Metall. 1. a process in which molten metal is forced into metallic molds under hydraulic pressure to shape it, form objects, etc. 2. an article made by this process. [1910 15] * * * Forming metal objects by injecting molten… … Universalium
die-casting — dieˈ casting noun • • • Main Entry: ↑die … Useful english dictionary
Die casting — Die casting. См. Литье под давлением. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) … Словарь металлургических терминов
die casting — die .casting n [U] the process of making metal objects by forcing liquid metal into a hollow container with a particular shape, and then allowing it to become hard … Dictionary of contemporary English
Die casting — An engine block with aluminium and magnesium die castings. Die casting is a metal casting process that is characterized by forcing molten metal under high pressure into a mold cavity. The mold cavity is created using two hardened tool steel dies… … Wikipedia
die casting — noun : a part made by die casting * * * die casting, adj. Metall. 1. a process in which molten metal is forced into metallic molds under hydraulic pressure to shape it, form objects, etc. 2. an article made by this process. [1910 15] * * * die… … Useful english dictionary
die casting — liejimas slegiant statusas T sritis chemija apibrėžtis Gaminių formavimas iš metalų arba termoplastinių polimerų, kai žaliavos lydalas įpurškiamas į šaltą formą ir joje aušdamas sukietėja. atitikmenys: angl. die casting; injection casting;… … Chemijos terminų aiškinamasis žodynas
Die Casting Couch — Filmdaten Deutscher Titel Die Casting Couch – Heiße Dates und sexy Girls Originaltitel National Lampoon s Cattle Call … Deutsch Wikipedia
die-casting — noun make (a metal object) in this way. → die cast … English new terms dictionary

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