METHOD OF VACUUM SUCTION CASTING AND PLANT FOR ITS EMBODIMENT

摘要

FIELD: methods and plants for vacuum suction casting. SUBSTANCE: mold provided with helical inlet channel and melt conduit is placed into vacuum chamber. Melt conduit is submerged into melt source. Pressure differential is built up between mold space and melt source. Melt fills the mold through helical inlet channel. Melt conduit is removed from melt source and mold is turned in direction preventing melt flowing out of mold space. Helical channel is made of two identical refractory members, one of which is turned over. Channel configuration is similar to horizontally oriented letter S when melt conduit is submerged into melt and located in horizontal position. EFFECT: reduced time of cycle for filling mold with melt. 11 cl, 11 dwg øøø1