Patent ID: 7393497
Filing Date: 2008-07-01
Classification: B01D,B01J,C22B,Y02P

Abstract:
1. A system for filtering hard alpha inclusions from a reactive metal alloy comprising at least one of the group consisting of a titanium alloy and a zirconium alloy, said system comprising: a vessel capable of holding the reactive metal alloy in a molten form, wherein said vessel is capable of pouring the molten reactive metal alloy, wherein the reactive metal alloy comprises at least one of the group consisting of a titanium alloy and a zirconium alloy; a receptacle for receiving the molten reactive metal alloy poured from said vessel; and a filter disposed between said vessel and said receptacle through which the molten reactive metal alloy passes before being received by said receptacle for preventing at least some hard alpha inclusions from entering said receptacle, said filter comprising a plurality of metal strands to define a plurality of openings of substantially equal size, and said filter comprised of a material having a melting point that exceeds a melting point of the reactive metal alloy and is at least partially insoluble in the molten reactive metal alloy.