Method for the preparation of thixotropic slurries

Details Method for the preparation of thixotropic slurries Method for the preparation of thixotropic slurries

C - Chemistry, Metallurgy

22

C

75/154

C22C 1/02 (2006.01) B01F 3/00 (2006.01) B01F 13/08 (2006.01) C22C 1/00 (2006.01)

Patent

CA 1117321

8024-MB ABSTRACT OF THE DISCLOSURE This invention relates to an improved method for the preparation and delivery of semi-solid thixotropic metal slurries for use in metal forming processes such as the rheocast and thixocast processes. The method includes inducing turbulent motion within the metal during solidification by electromagnetic or electrodynamic techniques under controlled temperature conditions so as to produce a highly fluid semi-solid slurry with a degenrate dendritic structure comprising solid spheroids dispersed in liquid. In the method of the preferred embodiment of the present invention, flow of the thixotropic metal slurry from the vibrating chamber is controlled by electromagnetic techniques and may be continuous or semi- continuous.

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