Foseco International Limited

Jean P Villani

Max G Neu

David R Butler

Roland Lenoir

George Snow

Philip Sandford

Alain Teyssedre

A mould (61) for metal casting has a mould cavity (62) and a sprue (63) communicating directly with the mould cavity (62) and located in the sprue (63) a sleeve (64) of refractory material having a cellular ceramic filter (65) fixed therein. The mould, which has no running system apart from the sprue, may be a sand mould or a metal die for producing castings by gravity or low pressure diecasting. The cellular ceramic filter may be a honeycomb type of structure having cells which extend between two outer surfaces of the filter or a structure having interconnecting cells such as a ceramic foam.

Moulds for metal casting and sleeves containing filters for use therein

Pouring tubes for use between a ladle and tundish or tundish and mould in continuous casting operations are formed of an inner refractory tube (2) with an outer reinforcing fibrous mat (3) applied around the tube. The fibrous mat may be formed by a helically wound strip and may be impregnated with particulate refractory and optionally a binder to improve the strength and resistance of the composite tube. Metal support means may be attached near one end of the tube.

Pouring tubes

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Charleville Mezieres, France

Jean P Villani