Casting
In casting, a sprue is the passage through which a molten material is introduced into a mold, and the term also refers to the excess material which solidifies in the sprue passage. In sand casting, the sprue is formed by a dowel which is removed from the sand to make the hole into which the metal is poured.
Read more about this topic: Sprue (manufacturing)
Famous quotes containing the word casting:
“This I do know and can say to you: Our country is in more danger now than at any time since the Declaration of Independence. We don’t dare follow the Lindberghs, Wheelers and Nyes, casting suspicion, sowing discord around the leadership of Franklin D. Roosevelt. We don’t want revolution among ourselves.”
—Lyndon Baines Johnson (1908–1973)
“All we know
Is that we are a little early, that
Today has that special, lapidary
Todayness that the sunlight reproduces
Faithfully in casting twig-shadows on blithe
Sidewalks. No previous day would have been like this.”
—John Ashbery (b. 1927)
“For the gods, though slow to see, see well, whenever a man casting aside worship turns folly.”
—Sophocles (497–406/5 B.C.)