Aluminium - SiC Ceramic Particles Composites. The Technology Of Shape Composites Production.
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J. Gawroriski, M. Cholewa & J. Szajnar
Aluminium - SiC ceramic particles composites. The technology of shape composites production. J. Gawroriski, M. Cholewa, J. Szajnar Foundry Institute, Silesian Technical University, 44 100 Gliwice, Towarowa 7, Poland ABSTRACT In a paper some problems concerning section aluminium -ceramic particles composites production are discussed in a case of AlMg2-SiC. Silicon carbide surface activator has been used in production technology and two stages of stirring: first mechanic stage with an agitator inside a furnace for melting composite base with reinforcing material, and second inside a casting mould by means of rotating reversing magnetic field (RRMF). Stirring assisted with RRMF enables to obtain any shape of composite casting, which is illustrated by an example of cruciform cast, where whirlpool movement of liquid composite in cross arms is limited, nevertheless achieved SiC particles distribution homogeneity is good. INTRODUCTION Compos