METHOD OF HOT COMPACTION OF SOLID HARD-TO-DEFORM POWDER MATERIALS AND DEVICE TO THIS END Russian patent published in 2012 - IPC B22F3/14 B30B11/00 

FIELD: process engineering.

SUBSTANCE: invention relates to powder metallurgy, particularly, to compaction of billets from solid hard-to-deform powder material to device to this end. It may be used in production of structural materials for precise instrumentation of spacecraft control and navigation systems. Powder material is arranged in inner cavity of split female die 1 with its conical surface mating external container 2, and evacuated. Inclination of said mating lateral conical surface of said female die and said container are selected within self-deceleration angle limits. Said split female die rests on bottom dummy block 5 fitted on support 6. Screen is arranged in split die working zone. Container fitted on split female die is heated, creeped and tightened. Compaction is performed by top male die 3 with top detachable dummy block 4. Extrusion is performed after mounting support under container in pressing male die against split female die. To withdraw article, container is removed from split female die conical surface.

EFFECT: increased yield, higher hardness, no defects.

5 cl, 3 dwg, 2 ex