The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 08, 2006
Filed:
Mar. 25, 2004
Toshinobu Eguchi, Tokyo, JP;
Hideo Sakamoto, Tokyo, JP;
Norihiro Saijou, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In a transverse induction heating apparatus in which a material to be rolled is heated by inductors to which electric power is supplied from an AC power source, iron core widths of the inductors in a plate width direction of the material to be rolled are smaller than plate width of the material to be rolled, they are disposed on a plate width center line of the material to be rolled, and when a current penetration depth is δ(m), specific resistance of the material to be rolled is ρ(Ω-m), magnetic permeability of the material to be rolled is μ(H/m), heating frequency of the AC power source is f (Hz), and plate thickness of the material to be rolled is tw (m), the heating frequency of the AC power source is set so thatδ={ρ/(μ··π)}and (/δ)<0.95.