Flask (foundry)

Flask (foundry)

A flask is a type of tooling used to contain a mold in metal casting. A flask has only sides, and no top or bottom, and forms a frame around the mold, which is typically made of molding sand. The shape of a flask may be square, rectangular, round or any convenient shape. A flask can be any size so long as it is larger than the pattern being used to make the sand mold. Flasks are commonly made of steel, aluminum or even wood. A simple flask has two parts, the cope and the drag, and more elaborate flasks may have three or even four parts.

Flask Design

Flasks are often designed with bars which extend span two opposite sides. The bars act as reinforcement to the molding sand which is relatively weak in tensile strength. The bars help support the sand through the molding and pouring operation.

Flasks are designed with an alignment or registration feature so that the two flasks can be aligned to one another to insure a casting can be more dimensionally accurate.

Flasks will usually have handles or trunions designed into their construction which assist in handling the flasks with cranes or other lifting machinery.

Some flasks are used to form a mold and they are removed before pouring the casting so another mold can be made. Other flasks are designed to contain the mold through the pouring operation, and then the casting is shaken out of the mold. The flasks are then used again and again.

Flasks are usually (though not always) the property of the foundry making the casting. The amount of available flasks can be a limiting factor in the overall production rate.

References

*Citation
last = Beeley
first = Peter
author-link =
last2 =
first2 =
author2-link =
publication-date =
date =
year = 2001
title = Foundry Technology
edition = Second
volume =
series =
publication-place =Oxford, UK
place =
publisher =Butterworth-Heinemann
pages =
page =448
id =
isbn =0 7506 4567 9
doi =
oclc =
url =http://books.google.com/books?id=nYQFfqjY-LwC&printsec=frontcover&dq=Foundry+Technology&sig=EwmvCLo-IeEV8uH_hBKBXJHCoiM
accessdate =2008-02-17.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Flask — may refer to: *Vacuum flask a container designed to keep warm drinks warm and refrigerated drinks cold *Hip flask, a small container used to carry a small amount of liquid *Laboratory flask, laboratory glassware for holding larger volumes than… …   Wikipedia

  • Flask — Flask, n. [AS. flasce, flaxe; akin to D. flesch, OHG. flasca, G. flasche, Icel. & Sw. flaska, Dan. flaske, OF. flasche, LL. flasca, flasco; of uncertain origin; cf. L. vasculum, dim. of vas a vessel, Gr. ?, ?, ?. Cf. {Flagon}, {Flasket}.] 1. A… …   The Collaborative International Dictionary of English

  • flask — [flask, fläsk] n. [ME < ML flasco & OE flasce, both < LL flasco (gen. flasconis) < flasca < Gmc * flasko, bottle, wicker enclosed jug, prob. < base of OHG flechtan, to weave: for IE base see FLAX] 1. any small, bottle shaped… …   English World dictionary

  • flask — I. /flask / (say flahsk) noun 1. a bottle shaped container made of glass, metal, etc.: a flask of oil; a brandy flask. 2. an iron container for shipping mercury. 3. (in foundry work) a moulding box which holds the sand into which molten metal is… …  

  • Erlenmeyer flask — Flask Flask, n. [AS. flasce, flaxe; akin to D. flesch, OHG. flasca, G. flasche, Icel. & Sw. flaska, Dan. flaske, OF. flasche, LL. flasca, flasco; of uncertain origin; cf. L. vasculum, dim. of vas a vessel, Gr. ?, ?, ?. Cf. {Flagon}, {Flasket}.] 1 …   The Collaborative International Dictionary of English

  • Florence flask — Flask Flask, n. [AS. flasce, flaxe; akin to D. flesch, OHG. flasca, G. flasche, Icel. & Sw. flaska, Dan. flaske, OF. flasche, LL. flasca, flasco; of uncertain origin; cf. L. vasculum, dim. of vas a vessel, Gr. ?, ?, ?. Cf. {Flagon}, {Flasket}.] 1 …   The Collaborative International Dictionary of English

  • Pocket flask — Flask Flask, n. [AS. flasce, flaxe; akin to D. flesch, OHG. flasca, G. flasche, Icel. & Sw. flaska, Dan. flaske, OF. flasche, LL. flasca, flasco; of uncertain origin; cf. L. vasculum, dim. of vas a vessel, Gr. ?, ?, ?. Cf. {Flagon}, {Flasket}.] 1 …   The Collaborative International Dictionary of English

  • Goldens' Foundry — Infobox Company | company name = Goldens Foundry and Machine Co. company company type = Private foundation = Columbus, Georgia, USA (1882) location city = Columbus, Georgia location country = USA key people = George Golden Boyd, Sr., Chairman and …   Wikipedia

  • Berlin Foundry Cup — The Berlin Foundry Cup ( de. Erzgießerei Schale) is a red figure kylix (drinking cup) from the early fifth century BC. It is the name vase of the Attic vase painter known conventionally as the Foundry Painter. Its most striking feature it the… …   Wikipedia

  • Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”