New method and devices for electromagnetic drip-and leakage-free levitation melting

verfasst von

Ovidiu Peşteanu, Egbert Baake

Abstract

A new method to exert EML forces along the z-axis is presented, consisting in the utilization of two homogeneous sinusoidal magnetic fields of different frequencies, whose field lines in absence of a charge are horizontal and reciprocally normal. The two-frequency device comprises a magnetic core composed of a yoke and four teeth, onto which four copper tube coils are wound. In a vertical quartz tube. The two electromagnetic fields produced by the two coil pairs were computed by the calculation method. For the free surface determination, the simplified method for the two-dimensional calculation of steady free surfaces is applied. The applicability and generality of this model is tested for a large frequency range, between 50 Hz and 30 kHz, and for the different free surface profiles of various recirculated, rotational semi- or entirely-levitated flows, driven in mono- or rotational three-phase magnetic fields.

Organisationseinheit(en)

Institut für Elektroprozesstechnik

Typ

Artikel

Journal

ISIJ international

Band

52

Seiten

937-938

Anzahl der Seiten

2

ISSN

0915-1559

Publikationsdatum

15.05.2012

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Werkstoffmechanik, Maschinenbau, Metalle und Legierungen, Werkstoffchemie

Elektronische Version(en)

https://doi.org/10.2355/isijinternational.52.937 (Zugang: Offen)