To obtain a metallic matrix composites with a uniform incorporation and dispersion of particles require the control of technological parameters. The fabrication of MMCs by means of casting methods is necessary to prepare a liquid metallic matrix/non-metallic particles suspensions before casting. The Vortex method is one such method to prepare suspensions. In this case the feeding rate of liquid matrix with particles is a important technological parameters which influences the uniformity of incorporation and dispersion of particles within metallic matrix. The present paper shown experimental researchs concerning of the influence of feeding rate on the incorporation degree and dispersion particles in an aluminium matrix composites.