PRESS-MOLD FOR PRESSING THIN POWDER ARTICLES Russian patent published in 1997 - IPC

FIELD: pressing of thin articles of hard alloys, ferrites, abrasive, ceramic and composition materials. SUBSTANCE: press-mold includes plate 1, die 2 arranged on late and having helical slit on its lateral surface, substrate 5, upper 4 and lower 3 punches. Press-mold is provided at least with two axles 8 supporting bearing assemblies 7 and nuts 9 for fixing lower punch 3. Bearing assemblies are mounted on axles 8 in slit of die 2. Both axles are arranged in die 2 in such a way that their one ends are rigidly secured to lateral surface of punch 3 in opening and on other end of axles nut 9 is mounted. At up-down motion of punch 3 bearing assemblies 7 move in slit of die 2. EFFECT: improved design. 3 dwg