Based on the theory of stir cast invented by Mr. D.B. Spencer and M.C.Flemings, the semi solid die casting technic has been further developed and applied over 30 years world wide. The main principle of this technic is to perform a strong stir during the metal phase change from liquid to solid, thus break the cylindrical and dendritic crystal to achieve much smaller grain size. While this phase still maintains certain flow property, the die casting could be performed to the metal.
The Advantages Of Semi-solid Die Casting
The advantage of semi-solid die casting is contributed from the very nice microstructure product its resulted. As the rough big crystal were removed, leaving small, even, dense structure metal, the final products possess a number of fine property, and the casting process is more controllable as well.
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