Large DC Electromagnet for Semi-Industrial Thermomagnetic Processing of Nanocrystalline Ribbon

Author

Kozlowski, Adam ; Rygal, Roman ; Zurek, Stan

Author_Institution

Magneto Ltd., Czestochowa, Poland

Volume

50

Issue

4

fYear

2014

fDate

Apr-14

Firstpage

1

Lastpage

4

Abstract

A large dc electromagnet with a 200 mm long air gap was designed, constructed, and tested. Analytical calculations provided the first approximation of required parameters. The design was refined with the aid of finite element modeling. Thermomagnetic processing required nominal flux density level to be 0.35 T. It was validated on a prototype that the average flux density in the air gap exceeded this value. The magnetizing coils were designed to be cooled by natural air convection. Despite a large size (~1900 kg), the electromagnet was designed to consume less than 2.5 kW and could be energized from a single-phase mains socket.

Keywords

coils; finite element analysis; magnetic flux; magnetisation; nanomagnetics; nanoribbons; natural convection; thermomagnetic effects; air gap; cooling; dc electromagnet; finite element modeling; flux density level; magnetizing coils; nanocrystalline ribbon; natural air convection; semiindustrial thermomagnetic processing; single-phase main socket; Amorphous magnetic materials; Coils; Electromagnets; Finite element analysis; Magnetic cores; Prototypes; Soft magnetic materials; Air gap; electromagnet; nanocrystalline cores;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2288322

Filename

6798057