Filler component for investment casting slurries

Details Filler component for investment casting slurries Filler component for investment casting slurries

B - Operations, Transporting

28

B

B28B 7/34 (2006.01)

Patent

CA 2579814

A filler component for making an investment casting slurry, which comprises: a major portion of finely divided silica, aluminum silicate, alumina, zircon, or mixtures thereof; and a minor portion of one or more finely divided materials having particles in which, on average, at least one dimension of the particle is at least about four times greater than at least one other dimension of the particle. Typically, the particles are of generally plate-like or needle-like shape.

La présente invention a trait à un constituant de charge pour une suspension de moulage de précision, comportant: une portion majoritaire de silice, de silicate d'alumine, d'alumine, de zircon finement divisés, ou des mélanges de ceux-ci, et une portion minoritaire d'une ou de plusieurs matières finement divisées ayant des particules dans lesquelles, en moyenne, au moins une dimension de la particule est au moins quatre fois supérieure à celle d'au moins une autre dimension de la particule. De manière caractéristique, les particules présentent une forme globale de feuillet ou d'aiguille.

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