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Application of linear induction motor for tension supply and heating to thin sheet steel
Author(s) -
Yamada Takahiro,
Fujisaki Keisuke
Publication year - 2009
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.20845
Subject(s) - linear induction motor , thrust , electromagnetic induction , tension (geology) , lorentz force , induction heating , induction motor , mechanics , normal force , mechanical engineering , physics , materials science , engineering , electromagnetic coil , electrical engineering , classical mechanics , magnetic field , moment (physics) , quantum mechanics , voltage
A linear induction motor to be able to achieve induction heating and tension in thin steel sheet treatment process is researched. The major problems in the application of the linear induction motor are meandering of thin steel sheet by the electromagnetic force in the normal direction, the heating characteristic, and the evaluation of the thrust force as a tension. As a result of the investigation of the frequency characteristic by means of electromagnetic FEM calculation, it is confirmed that the electromagnetic force in the normal direction which consists of repelling force caused by the magnetization and repulsive force caused by Lorentz force becomes almost zero at the crossover frequency. In this frequency, the temperature of the steel sheet at the front and back have almost the same distribution. Since the tension value converted from the thrust force is about 10% of experiment equipment, the linear induction motor is also useful for the auxiliary function of the tension roll. © 2009 Wiley Periodicals, Inc. Electr Eng Jpn, 168(2): 38–47, 2009; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.20845