B - Operations – Transporting – 22 – C
Patent
B - Operations, Transporting
22
C
B22C 9/02 (2006.01) B22C 1/08 (2006.01) B22C 9/22 (2006.01) B22C 9/24 (2006.01) B22C 13/08 (2006.01)
Patent
CA 2760375
Slurry which contains a) from (50) to (80)% by weight of refractory particles having an average particle size of from (0.5) m to (150) m, b) from (5) to (35)% by weight of aluminium oxide particles having an average particle diameter of less than (300) nm and c) from (5) to (35)% by weight of water and d) a pH of from (5) to (12). Process for producing the slurry using a dispersion, and also the dispersion itself. Process for producing a casting mould, and also the casting mould itself.
La présente invention se rapporte à une suspension qui contient a) de (50) à (80) % en poids de particules réfractaires ayant une taille de particule moyenne de (0,5) m à (150) m, b) de (5) à (35) % en poids de particules d'oxyde d'aluminium ayant un diamètre de particule moyen inférieur à (300) nm et c) de (5) à (35) % en poids d'eau et d) un pH de (5) à (12). L'invention se rapporte également au processus de production de la suspension à l'aide d'une dispersion, et également à dispersion elle-même. Elle concerne aussi un processus de production d'un moule de coulée ainsi que le moule de coulée lui-même.
Frulli Danilo
Lortz Wolfgang
Perlet Gabriele
Schmidt-Kluge Erich
Tontrup Christoph
Center For Abrasives And Refractories Research & Development C.a
Evonik Degussa Gmbh
Marks & Clerk
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