Tube having filter therein for use in the casting of metals

Details Tube having filter therein for use in the casting of metals Tube having filter therein for use in the casting of metals

B - Operations, Transporting

22

D

22/124, 22/142,

B22D 1/00 (2006.01) B22C 9/08 (2006.01)

Patent

CA 1304562

FS 1409 ABSTRACT TUBE HAVING FILTER THEREIN FOR USE IN THE CASTING OF METALS A tube of refractory material having a filter therein for use in the casting of molten metals is made by forming a tube of fibrous refractory material, a binder and optionally particulate refractory material, inserting a filter into the tube, deforming the wall of the tube around the filter so as to hold the filter in place and causing or allowing the binder to harden. The filter may be a honeycomb type of structure having cells which extend from one face to an opposite face, or a structure having interconnecting cells such as a ceramic foam. In use the tube is inserted in a mould sprue which communicates directly with the mould cavity.

605809

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