DEVICE FOR CASTING PLATES AND THIN-WALLED SHAPES HAVING ORDERED STRUCTURE Russian patent published in 1994 - IPC

FIELD: casting. SUBSTANCE: device includes piston located in the mold and mating the inner cavity cross section profile of the mold. The piston is movable under the influence of its own weight which is to exceed the force required to displace molten metal from the crucible to the mold in the direction from the top down. For this purpose the piston made from material unwettable by the molten metal is provided with the butt end contacting with the molten metal made of material wettable by the said molten metal. The device has a chamber designed to accommodate a heat absorbing material and located lower than the mold. Above the crucible the device is provided with a chamber designed to contain priming, and with means of priming thermostatic control placed externally, for example with heat shields. EFFECT: improved quality of the product. 4 cl, 6 dwg