金属板の誘導加熱装置及び誘導加熱方法

Induction heating apparatus and induction heating method for metal plate

Abstract

PROBLEM TO BE SOLVED: To provide an induction heating apparatus and an induction heating method that can control a heating temperature distribution irrespective of a magnetic or non-magnetic property for even a thin metal plate, and perform heating while following change of plate width and meandering.SOLUTION: In an apparatus for inductively heating a metal plate passing through the inside of an induction coil, with respect to vertical projection images obtained when electric conductors constituting induction coils at the front and back surface sides of the metal plate respectively are vertically projected onto the metal plate, the electrical conductors at the front and back surface sides are arranged to be displaced from each other so that the electrical conductors are not overlapped with each other in the longitudinal direction of the metal plate at the center portion in the width direction of the metal plate, and also the electrical conductors are arranged to be partially overlapped with each other in parallel in the longitudinal direction of the metal plate at at least one end portion in the width direction of the metal plate.
【課題】薄い金属板であっても、磁性、非磁性を問わず加熱温度分布が制御でき、また、板幅変更、蛇行に追従加熱できる誘導加熱装置および誘導加熱方法を提供する。 【解決手段】誘導コイルの内側を通過する金属板を誘導加熱する装置であって、金属板の表面側と裏面側の誘導コイルを構成する導体を、それぞれ該金属板へ垂直投影した際の垂直投影像において、表面側と裏面側の該導体が、該金属板の幅方向中央部においては、金属板の長手方向に対して互いに重ならないようにずらして配置されるとともに、該金属板の少なくともどちらかの幅方向端部においては、金属板の長手方向に対して互いに少なくとも一部が平行に重なるように配置されることを特徴とする。 【選択図】図3

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Patent Citations (3)

    Publication numberPublication dateAssigneeTitle
    JP-2002151245-AMay 24, 2002Toyo Seikan Kaisha Ltd, 東洋製罐株式会社金属基材の加熱方法及び加熱装置
    JP-S6412490-AJanuary 17, 1989Ajiyatsukusu Magunesaamic CorpContinuous induction heater for metal strip
    US-3031555-AApril 24, 1962Magnethermic CorpInduction heating

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