方向性電磁鋼板のTD磁気特性における磁区モデル

カテゴリ: 研究会(論文単位)

論文No: RM13007

グループ名: 【D】産業応用部門 回転機研究会

発行日: 2013/01/24

タイトル(英語): Magnetic Domain Models of TD Magnetic Properties of Grain-oriented Electrical Sheet Sheets

著者名: 開道 力(北九州工業高等専門学校),松尾 哲司(京都大学),美舩 健(京都大学),李 燦(日立製作所),宮田 健治(日立製作所)

著者名(英語): Kaido Chikara(KItakyushu College of Technology),Matsuo Tetsuji(Kyoto University),Mifune Takeshi(Kyoto University),Lee Chahn(Hitachi,Ltd.),Miyata Kenji(Hitachi,Ltd.)

キーワード: 方向性電磁鋼板|磁気特性|ＴＤ|還流磁区|９０゜磁壁|磁歪|grain-oriented electrical steel sheet|magnetic properties|transverse direction|closure domain|90゜domain wall|magnetostriction

要約(日本語): ＧＯ各方向の磁化曲線、鉄損カーブと磁歪の実測データを基に、ＴＤ励磁での、鋼鈑表面磁極抑制のための還流磁区挙動を検討し、ＴＤを含めた磁気特性の方向依存性を説明します。

要約(英語): This paper discusses the magnetic priperties models of grain-oriented electrical steel sheets (GO) in transverse direction (TD) to rolling direction (RD) using magnetic domain models. Excitation in TD causes 90゜domain wall displacements which give rise to magnetostrictions and eddy current losses due to magnetic flux changes normal to GO steel surfaces. The magnetic properties under about 0.1 T are calculated from the displacements of RD 180゜domain wall inclined to TD. Those at middle flux density are estimated with magnetostrictions that 90゜domain wall displacements accompanied and RD tensile stresses due to GO steel surface coating, which get hard to magnetize and increase exciting fields and hysteresis losses. Magnetization curves over about 1.3 T are calculated as magnetization rotation, although induced complicated and fine domain structure causes the difficulty .

原稿種別: 日本語

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