Continuous Casting of Semisolid Al-Si-Mg Alloy

  1. Dipl.-Ing. K. Ehrke Chairman2 and
  2. Prof. Dr. W. Schneider3
  1. Tetsuichi Motegi and
  2. Fumi Tanabe

Published Online: 21 APR 2006

DOI: 10.1002/3527607331.ch12

Continuous Casting

Continuous Casting

How to Cite

Motegi, T. and Tanabe, F. (2000) Continuous Casting of Semisolid Al-Si-Mg Alloy, in Continuous Casting (eds K. Ehrke and W. Schneider), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527607331.ch12

Editor Information

  1. 2

    ALUMINIUM Essen GmbH, Sulterkamp 71, D-45356 Essen, Germany

  2. 3

    VAW Aluminium AG, Forschung und Entwicklung, Georg-von-Boeselager-Str. 25, D-53117 Bonn, Germany

Author Information

  1. Chiba Institute of Technology, Department of Metallurgical Engineering, Japan

Publication History

  1. Published Online: 21 APR 2006
  2. Published Print: 29 NOV 2000

ISBN Information

Print ISBN: 9783527302833

Online ISBN: 9783527607334

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Keywords:

  • continuous casting;
  • continuous casting of semisolid Al-Si-Mg alloy

Summary

One of the most interesting cast technologies is the semisolid casting process and its products. Ingots made by the semisolid casting are utilized to the thixocasting process. The advantages of this process are the low casting temperature, good fluidity of the semisolid alloys, and homogeneity of the solidified structures. In general, the semisolid alloy ingots are produced by either electromagnetic stirring or mechanical stirring of the molten alloys. However, both require huge equipment and the costs are high. We have invented a new casting machine for semisolid alloy. It possesses an inclined cooling plate, which is used to make numerous crystal seeds and to disperse in the molten alloy before casting. Molten alloy with crystal seeds flow into a tundish and the seeds grow granular crystals within it. Thus the semisolid alloy is cast by a DC continuous casting machine.

In this investigation, a molten Al-Si-Mg casting alloy was poured down a cooling plate to form abundant crystal seeds in the molten alloy. It was then cast into the horizontally continuous casting machine.