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Verfahren zur Formgebung gleitfaehiger Massen durch Druckfoerderung und Vorrichtung zur Durchfuehrung des Verfahrens

Pressure-assisted conveying method for homogenous/compressible materials with ultrasound injected into material and use of sliding agent, to change material consistency
: Garrecht, H.; Geissler, A.; Goetz, J.; Peciar, M.

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DE 2000-10024762 A: 20000519
DE 2000-10024762 A: 20000519
DE 10024762 B4: 20050623
Patent, Electronic Publication
Fraunhofer ICT ()

(A1) Bei einem Verfahren zur Druckfoerderung gleitfaehiger Massen in einen vorgegebenen Foerderquerschnitt wird in die Randzone des Foerderquerschnitts Gleitmittel eingespeist und in die gefoerderte gleitfaehige Masse und/oder das Gleitmittel Ultraschall eingekoppelt.


DE 10024762 A UPAB: 20020128 NOVELTY - Ultrasound is injected into a material with poor sliding behavior before it is transported. A sliding agent is fed into the edge zone of the conveyed width, upstream and/or downstream of the ultrasound injection point. Ultrasound may also be injected into the sliding agent. DETAILED DESCRIPTION - The sliding material is for the production of molded parts of pastes, dispersions, or mixed materials with low fluid content, and using a fluid as part of binding agent. The material may be cement mortar, ceramic, or plastic, or components for burning may be fabricated from a compressed material. The process may be carried out in pipe lines or by extruders. USE - Fabrication of parts from pastes, dispersions, etc. with low fluid content. ADVANTAGE - Reduces drop in pressure in poorly sliding materials, prevents defects close to surface in molded parts.