APPARATUS FOR MAKING SHAPED PRODUCTS BY CRUCIBLE-FREE DIRECTED CRYSTALLIZATION Russian patent published in 1994 - IPC

FIELD: production of turbine engine parts by directed crystallization method. SUBSTANCE: apparatus has a heater and seed holder, connected with means for vertical drawing, for rotation around a horizontal axis and for controllable reciprocation motion in horizontal plane. In order to create a melt zone a blank of initial material in the form of a strip is being melt with use of the heater; the seed is being brought to contact with the melt zone for forming on it at first a shaft and then a disk by changing of amplitudes of reciprocation motion. Turbine disks, had been produced, are monolithic with the shaft, and have diameter 200 mm. The shaft has diameter 70 mm and length value 80 mm. EFFECT: enhanced quality of turbine engine parts. 1 cl, 2 dwg