Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2007-08-01

Journal: MATERIALS TRANSACTIONS

Included Journals: Scopus、EI、SCIE

Volume: 48

Issue: 8

Page Number: 2194-2201

ISSN: 1345-9678

Key Words: direct chill casting; aluminum wrought alloy; electromagnetic casting; casting speed

Abstract: A mold with slits and external cooling water channels was designed for the direct chill casting processing. By imposing a high frequency magnetic field, the surface quality and microstructure of the direct chill cast billets are improved. The casting speed could be improved by the simultaneous use of mold and electromagnetic coil. In the case of one kind of Al-Cu-Mg alloy with a wide freezing range, the critical casting cast with electromagnetic field is more fine and uniform than that of the to break-out can be improved 60%. The microstructure of the billet conventionally cast billet, and the subsurface segregation usually observed in the conventional billets is eliminated.