Molding composition and method using same to form...

C - Chemistry – Metallurgy – 04 – B

Patent

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C04B 35/653 (2006.01) E21B 10/00 (2006.01) B22D 15/00 (2006.01)

Patent

CA 2713829

A method to form a displacement for use in a metal casting process, wherein the method provides a plurality of ceramic particles and a plurality of resin particles. The method grinds the plurality of ceramic particles until those ceramic particles comprise diameters less than 150 microns, and grinds the plurality of resin particles until those resin particles comprise diameters less than 100 microns, and forms a powder blend comprising the plurality of ground ceramic particles and the plurality of ground resin particles. The method then disposes the powder blend into a mold comprising a cavity defining the desired displacement. The method further densities the blend, and cures the resin to form the displacement.

L'invention concerne un procédé pour former un déplacement à utiliser dans un processus de coulage de métal, le procédé fournissant une pluralité de particules céramiques et une pluralité de particules de résine. Le procédé broie la pluralité de particules céramiques jusqu'à ce que ces particules céramiques comportent des diamètres inférieurs à 150 microns, et broie la pluralité de particules de résine jusqu'à ce que ces particules de résine comportent des diamètres inférieurs à 100 microns, et forme un mélange de poudre comportant la pluralité de particules céramiques broyées et la pluralité de particules de résine broyées. Le procédé dispose ensuite un mélange de poudre dans un moule comportant une cavité définissant le déplacement souhaité. Le procédé densifie en outre le mélange, et vulcanise la résine pour former le déplacement.

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