Process for the production of thick-walled hollow centrifugal metal castings

摘要

375,159. Casting processes. PROJAHN, H., 16, Oskarstrasse, Gelsenkirchen, Germany. Oct. 6, 1931, No. 27731. Convention date, Oct. 25, 1930. [Class 83 (i).] In making thick-walled centrifugal castings, a jet is moved to and fro over the mould and supplies metal at such rates that fresh metal is applied to the metal already cast before this solidifies. The metal may be delivered during movement of the pourer in one direction only, the reverse movement being more rapid. In casting conical articles the speed of the pourer must be varied. If desired one jet may operate in each end of a mould.