Reduced running system for metal casting moulds

The sprue for a metal casting mould communicates directly with the mould cavity. A sleeve of refractory material is located in the sprue, and a cellular ceramic filter is fixed into the sleeve. The mould has no other running system, and may be a sand mould or a gravity metal die. The sleeve may be l...

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Bibliographische Detailangaben
Hauptverfasser:	BUTLER DAVID RICHARD SNOW GEORGE, VILLANI JEAN PIERRE TEYSSEDRE ALAINE LENOIR ROLAND, SANDFORD PHILIP NEU MAX GERHARD
Format:	Patent
Sprache:	eng ; ita
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES FOUNDRY MOULDING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POWDER METALLURGY SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	The sprue for a metal casting mould communicates directly with the mould cavity. A sleeve of refractory material is located in the sprue, and a cellular ceramic filter is fixed into the sleeve. The mould has no other running system, and may be a sand mould or a gravity metal die. The sleeve may be located by protrusions in the sprue, or its exterior may be flared. The filter may be located on a ledge or projection inside the sleeve. It may be glued in place, or filter and sleeve may be formed integrally.