The principle,the advantage,the weakness and the research development of nondendritic semi-solid slurry preparation technologies have been summarized,the technologies are Stirring,SIMA,Near-liquidus Cast,Cooling Slope(Tube),etc.

Preparation of A356 Aluminum Alloy Semi-solid Slurry by Damper Cooling Tube Method;

Numerical simulation and parameters optimization of preparation of AZ91D magnesium alloy semi-solid slurry by damper cooling tube method;

Preparation of semi-solid slurry by melt spreading and mixing technique;

A low cost and high efficiency preparation technology of semisolid slurry by slope cooling body method is introduced,and the researching status,the effect of relative technique parameter on the microstructure morphology and the key problem needed to be resolved at home and abroad are summarized.

The A390 melt was imposed with ultrasonic vibration once it was poured into the metal cup and controlled in the liquid-solid temperature range, and the effects of ultrasonic vibration time, isothermal holding time, rest-work ratio on the semisolid slurry were studied.

Semisolid metal processing (SSP) technology is regarded as one of the near-net shape forming technologies in 21 century, which has a wide prospect for application, and previous studies have shown that the preparation of semisolid slurry for semisolid metal process is the key technique.