Method of making shaped bodies

Details Method of making shaped bodies Method of making shaped bodies

1971-07-29

1978-08-08

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Treatment of material by vibrating, jarring, or agitating...

By reciprocating or vibrating mold

264120, B28B 104, B29G 100

Patent

active

041057295

ABSTRACT:
A method and an apparatus for producing coherent shaped bodies from granular material. The granular material is confined in a mold and the mold is subjected to vibratory motions requisite for compacting the granular material. In accordance with the invention, the granular material is vibrated at its resonant frequency under a light load, then a substantial compressive force is applied to the granular material and the granular material is vibrated at the resonant frequency of the whole vibrating system under compression.

REFERENCES:
patent: 831296 (1906-09-01), Purvis
patent: 1884528 (1932-10-01), Benner et al.
patent: 1937028 (1933-11-01), Lux et al.
patent: 2311358 (1943-02-01), Baily
patent: 2507302 (1950-05-01), Hedstrom
patent: 2667679 (1954-02-01), Jackman
patent: 3042594 (1962-07-01), Hauth
patent: 3470279 (1969-09-01), Abbott
Anon., Vibratory Compacting of Metal and Ceramic Powders, U.S. Dept. of Commerce, pp. 11-14.

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