sv nedlopp (hole allowing melted material into the mold) · ru ли́тник (hole allowing melted material into the mold) · sv nedgjut (hole allowing melted material into the mold) · de Anguss (Material that cools in the feed channels to a mold)
To remove the sprues (material left in feed channels) from a cast piece.
If we are to cast a simple pattern like a small ball we have at least three methods of sprueing the wax pattern (Fig. 6). 1985, Edward R. Dootz, “Technology of Casting and Soldering Alloys for Metal-Ceramic Applications”, in Conference on Recent Developments in Dental Ceramics, volume 6, numbers 1–2, page 86:
The method adopted for sprueing the wax pattern is much more important to the success of the inlay than is generally realized. 1947, The Ney Inlay Book, J. M. Ney Company, page 17:
In the brass spruing room is what is known as a Todd water tumbler, used for brass castings. 1882 August 15, “Details of a brass and iron foundry”, in American Machinist, page 3:
The pattern is completed in its final contour, is then sprued, invested and burned out of the investment, and the gold alloy is cast in the same manner as when the indirect technique is utilized 1976, Hazel Torres, Ann Beard Ehrlich, Modern Dental Assisting, page 662:
To provide for constructing and sprueing the wax sculpture, as described in Chapters 1 and 2, we must obviously have a wax working area, which in a foundry may also be referred to as the patternmaking area. 1985, Howard Hitchcock, Out of the Fiery Furnace: Casting Sculpture from Ceramic Shell Molds, Los Altos, Calif.: William Kaufmann, Inc., →ISBN, page 50: