Optimization of Manufacturing Conditions of Semi-Solid Slurry in Multiplex-Type Slurry Cup
Recently, we have developed a slurry maker using a multiplex-type slurry cup for rheoforming process. In the present study, the optimum manufacturing condition of semi-solid slurry having a fine and globular structure of primary solid phase was investigated in the multiplextype slurry cup. A various manufacturing condition, such as a pouring temperature of melt, a preheating temperature of slurry cup, and a holding temperature and time of melt in slurry cup was varied to make a processing map of the semi-solid slurry for rheoforming process. Through the microstructural examination of primary solid phase of the interrupt-quenched semi-solid slurry of Al-7wt%Si-0.35wt%Mg alloy produced in the multiplex-type slurry cup under a various manufacturing condition, the optimum manufacturing condition of the semi-solid slurry for rheoforming process were a pouring temperature of melt of 650, a preheating temperature of slurry cup of 300, and an isothermal holding time of melt in slurry cup of 10min at 580.
C.G. Kang, S.K. Kim and S.Y. Lee
S. W. Kang et al., "Optimization of Manufacturing Conditions of Semi-Solid Slurry in Multiplex-Type Slurry Cup ", Solid State Phenomena, Vols. 116-117, pp. 243-246, 2006