Vereinigte Aluminium-Werke Aktiengesellschaft

Fritz Wulfing

Gunter Helmrich

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.

Method of making shaped bodies

A method 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. The frequency of the vibratory motions is continuously increased until compaction is achieved.

Growing community of inventors

Rheydt, Germany

Fritz Wulfing