TRANSVERSE TYPE INDUCTION HEATING DEVICE - MITSUBISHI ELECTRIC CORP

Title:

TRANSVERSE TYPE INDUCTION HEATING DEVICE

Document Type and Number:

WIPO Patent Application WO/2004/089041

Kind Code:

A1

Abstract:

A transverse type induction heating device for heating a material to be rolled (1) by inductors (2, 3) to which power is supplied from an ac power supply (4), wherein the inductors (2, 3) are disposed on the plate-width center line of the material to be rolled (1) so that the iron core width, in the plate-width direction of the material to be rolled (1), of the inductors (2, 3) is made smaller than the plate-width of the material to be rolled (1), and the heating frequency of the ac power supply (4) is set so that a current penetration depth &dgr in the expression (1) satisfies the expression (2) when a current penetration depth is &dgr (m), the specific resistance of the material to be rolled (1) &rgr (&ohm - m), the magnetic permeability of the material (1) μ (H/m), the heating frequency of the ac power supply (4) f (Hz), a circle ratio &pgr and the plate thickness of the material (1) tw (m). &dgr = &lcub &rgr /(μ · f · &pgr )&rcub ^1/2 -------(1) (tw/&dgr ) < 0.95 --------(2)

Inventors:

EGUCHI TOSHINOBU (JP)
SAKAMOTO HIDEO (JP)
SAIJOU NORIHIRO (JP)

Application Number:

PCT/JP2004/004174

Publication Date:

October 14, 2004

Filing Date:

March 25, 2004

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)
EGUCHI TOSHINOBU (JP)
SAKAMOTO HIDEO (JP)
SAIJOU NORIHIRO (JP)

International Classes:

H05B6/10; B21B45/00; H05B6/02; H05B6/06; H05B6/44; (IPC1-7): H05B6/10; B21B45/00

Foreign References:

JPH1094818A	1998-04-14
JPS5832383A	1983-02-25
JPS531339A	1978-01-09
JPS51122649A	1976-10-26
JP2003082412A	2003-03-19
JPH0638563Y2	1994-10-12
JPH01321009A	1989-12-27
EP0839588A1	1998-05-06
FR1235881A	1960-07-08

Other References: