C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
C22B 9/02 (2006.01) B22D 11/119 (2006.01) B22D 43/00 (2006.01) C22B 21/06 (2006.01)
Patent
CA 2148905
An apparatus with a filtering zone (28) for filtering molten material, such as a molten metal-ceramic particle mixture, includes a porous cloth filter (50) located so that the mixture must pass through the cloth filter (50), and a mechanical filter shaker (54) that prevents the accumulation of filtered solids on the porous cloth filter (50). Where a further degree of filtration is required) there is a second filter (60) located so mae molten mixture leaving the porous cloth filter (50) passes through the second filter (60) after it passes through the porous cloth filter (50), and a mechanism such as a stirring impeller (64) that prevents an accumulation of filtered solids on the second filter (60). The second filter (60) is desirably a porous media filter.
Appareil possédant une zone (28) de filtrage d'une matière en fusion telle qu'un mélange fondu de particules de matière céramique et de métal. L'appareil comprend un filtre en tissu poreux (50) positionné de manière que le mélange doive le traverser, et un dispositif mécanique (54) servant à agiter le filtre afin d'empêcher l'accumulation sur le filtre en tissu poreux (50) de matières solides filtrées. Afin de permettre l'obtention d'un filtrage plus poussé, un second filtre (60) est positionné de manière que le mélange fondu en sortie du filtre en tissu poreux (50) traverse le second filtre (60) après avoir traversé le filtre en tissu poreux (50), et un mécanisme tel qu'un rotor agitateur (64) empêche l'accumulation sur le second filtre (60) de matières solides filtrées. Le second filtre (60) est de préférence un filtre à milieu poreux.
Bruski Richard S.
Holsgrove Peter
Hust Gary
Montgrain Luc
Alcan International Limited
Kirby Eades Gale Baker
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