METHOD AND DEVICE FOR FORGING OF METAL IN SOLID-LIQUID STATE.

摘要

The invention allows to obtain high-quality forged mouldings for technological equipment: moulds and dies. The method provides for feeding the metal into a metal receiver, moving it from the metal receiver to a matrix and crystallizing it in the matrix under pressure. Before moving the metal to the matrix it is subjected to vacuum treatment. The metal is moved from the metal receiver to the matrix in the two-phase state: solid and liquid, whereas the metal is fed to the metal receiver in the solid state and melted directly inside the metal receiver. The metal is fed to the metal receiver in the form of powder or as a powder with additions of chemical compounds. A device for implementing the method comprises a hydraulic press consisting of a frame (1) with stationary cross-pieces (2, 3, 4) and movable cross-pieces (5, 6, 7), with power drives consisting of cylinders (8, 11, 14, 17) and pipe lines (38, 39, 40, 41), and further comprises a mould consisting of a matrix (34) and a punch (37). A distinction of the device consists in that it is provided with an envelope (24), a pressure chamber (33) and a metal receiver with a support (22, 23) and a heating element (26-31).