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1. GB2242844 - A pneumatic flow-control column for molten metal

Office Royaume-Uni
Numéro de la demande 9007618
Date de la demande 04.04.1990
Numéro de publication 2242844
Date de publication 30.05.1990
Type de publication A
CIB
B22D 39/06
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
22FONDERIE; MÉTALLURGIE DES POUDRES MÉTALLIQUES
DCOULÉE DES MÉTAUX; COULÉE D'AUTRES MATIÈRES PAR LES MÊMES PROCÉDÉS OU AVEC LES MÊMES DISPOSITIFS
39Équipement pour l'alimentation en métal liquide en quantités bien définies
06comportant un réglage de la pression sur le bain de métal liquide
B22D 41/14
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
22FONDERIE; MÉTALLURGIE DES POUDRES MÉTALLIQUES
DCOULÉE DES MÉTAUX; COULÉE D'AUTRES MATIÈRES PAR LES MÊMES PROCÉDÉS OU AVEC LES MÊMES DISPOSITIFS
41Récipients de maintien d'un bain de fusion, p.ex. poches, paniers de coulée, bassins de coulée ou systèmes analogues
14Fermetures
CPC
B22D 39/06
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
39Equipment for supplying molten metal in rations
06having means for controlling the amount of molten metal by controlling the pressure above the molten metal
B22D 41/14
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
41Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
14Closures
Déposants MONKS JAMES HERBERT
Inventeurs MONKS JAMES HERBERT
Données relatives à la priorité 9007618 04.04.1990 GB
Titre
(EN) A pneumatic flow-control column for molten metal
Abrégé
(EN)
A tubular ceramic column (1) locates over an outlet nozzle (2) in a melt-containing vessel. Lower part of column (1) comprises two galleries, separated by weir (3). Up-feed gallery (4) has inlet orifice (5) near vessel floor for liquid to enter. Down-feed gallery (6) passes directly into outlet nozzle (2). Pressurised gas is fed into upper chamber (7) via supply hose (10) located in fittings (8) sealed into top of column. Chamber (7) may also be vented to atmosphere as desired. Interaction between outflow and input upon gas confined in chamber (7) results in a self-regulating condition so that column height in down-feed gallery (6) remains stable at any given height. Outflow rate is instantly altered by adjusting column height in down-feed gallery (6); this is achieved by increasing or decreasing system pressure. The column completely drains in halting outflow; this makes for ease of re-start after long halt times.