Release Time:2019-11-07  Hits:

Indexed by: Conference Paper

Date of Publication: 2002-01-01

Included Journals: EI

Volume: 15

Issue: 4 SPEC.

Page Number: 371-375

Abstract: In order to increase the casting speed of semi-continuous casting of aluminum billet, a mold with slits and external cooling water channels was designed. This cooling system can supply enough cooling strength and keep the cooling rate readily. By imposing a high frequency magnetic field, the surface quality and microstructure of the billets are improved, especially at a higher casting speed. The magnetic field has ideal profile inside the mold via the slits, which results in an easier controlling of meniscus level during the casting process and supports a possibility of higher casting speed with the effect of the external cooling water. Besides bringing the good surface quality, uniform structure, and fine grain; the casting defects such as segregation and porosity etc. also could be reduced or eliminated by imposing an electromagnetic field.