GATING SYSTEM FOR CENTRIFUGAL CASTING OF COMPLEX-PROFILE PARTS Russian patent published in 1994 - IPC

FIELD: foundry. SUBSTANCE: gating system has central riser 1, metal receiver 2, horizontal running channels 3 each of which terminates with sump 4 and passes into collector 5 rising upwardly and coupled with cavities 8 through feeders. Collectors 5 are tied with height-wise located dampers 6. The number of dampers 6 and distance between them depend on structural features of castings (poured cavities 8). The horizontal running channels are deflected from radial direction by angle α=5-25^° of 5-25 degrees towards the side opposite to rotation and collectors 5 are deflected from vertical position outwardly from the rotation axis by angle β=5-20^° of 5-20 degrees. Cavities 8 are coupled to the upper half of dampers 6 through feeders 7 inclined from horizontal plane upwardly by angle γ=30-85^° of 30-85 degrees. The surface of dampers 6 from the conjugation line with the collectors is convex. EFFECT: enhanced efficiency and widened operating capabilities. 2 cl, 18 dwg