Apparatus and method for compacting particulate materials

Details Apparatus and method for compacting particulate materials Apparatus and method for compacting particulate materials

B - Operations, Transporting

30

B

18/1120

B30B 11/04 (2006.01) B30B 15/06 (2006.01)

Patent

CA 1056573

APPARATUS AND METHOD FOR COMPACTING PARTICULATE MATERIALS Abstract of the Disclosure Powder in a plurality of die cavities is compacted by a corresponding plurality of punches on a head, each punch being connected with a piston in a hydraulic cylinder on the head. The cylinders communi- cate with each other and with a hydraulic accumulator cylinder which permits the punches individually to shift axially and compensate for cavity-to-cavity variations in the amount of powder fill. When the head moves beyond the range in which compensation occurs, a piston in the accumulator bottoms out to build equal pressure in the cylinders to transmit uniform compact- ing force to the punches. i.

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