Optimization of Manufacturing Conditions of Semi-Solid Slurry in Multiplex-Type Slurry Cup

Abstract:

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
.

• Periodical: Solid State Phenomena (Volumes 116-117)
• Pages: 243-246
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.116-117.243
• Online since: October 2006
• Authors: Suk Won Kang, Dock Young Lee, Ki Bae Kim
• Keywords: Coarsening, Globular Structure, Pouring Temperature, Preheating Temperature, rheoforming, Semi-Solid Slurry

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