Electrophoretic moulding process

Process for moulding by electrophoretic casting which produces a cast object in very dense green state, with a residual liquid such as water lower than 7 %, and which eliminates the excess liquid and deterioration of the electrode. This result is obtained by carefully choosing the viscosity of the s...

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Bibliographische Detailangaben
1. Verfasser: JOHN WILLIAM LUCEK
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:Process for moulding by electrophoretic casting which produces a cast object in very dense green state, with a residual liquid such as water lower than 7 %, and which eliminates the excess liquid and deterioration of the electrode. This result is obtained by carefully choosing the viscosity of the slip, by using an impervious casting mould in which only a minor part of the mould is conductive, by applying a variable voltage cycle and by moving one electrode in relation to the other. L'INVENTION CONCERNE UN PROCEDE DE MOULAGE PAR COULEE ELECTROPHORETIQUE QUI PRODUIT UN OBJET COULE A L'ETAT VERT TRES DENSE, AVEC UN LIQUIDE RESIDUEL TEL QUE DE L'EAU INFERIEUR A 7, ET QUI ELIMINE LE LIQUIDE EN EXCES ET LA DEGRADATION DE L'ELECTRODE. CE RESULTAT EST OBTENU EN CHOISISSANT AVEC SOIN LA VISCOSITE DE LA BARBOTINE, EN UTILISANT UN MOULE DE COULEE IMPERMEABLE DANS LEQUEL SEULE UNE PARTIE MINEURE DU MOULE EST CONDUCTRICE, EN APPLIQUANT UN CYCLE DE TENSION VARIABLE ET EN DEPLACANT UNE ELECTRODE PAR RAPPORT A L'AUTRE.