塑性変形による鉄心性能劣化

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2012/06/01

タイトル(英語): Core Characteristics Deterioration due to Plastic Deformation

著者名: 開道　力（北九州工業高等専門学校），新井　聡（新日本製鐵（株））

著者名(英語): Chikara Kaido (Kitakyushu National College of Technology), Satoshi Arai (Nippon Steel Corporation)

キーワード: 塑性変形，電磁鋼板，鉄損，磁気異方性，鉄心，モータ　　plastic deformation，electrical steel sheet，iron loss，magnetic anisotropy，core，motor

要約(英語): This paper discusses the effect of plastic deformation at core manufacturing on the characteristics of cores where non-oriented electrical steel sheets are used as core material. Exciting field and iron loss increase proportionally to plastic deformation in the case of rP<10, where rP is a ratio of plastic deformation to that at yield point. In this region, anomalous eddy currents increase because plastic deformations of crystalline grains are distributed and then the flux distribution is induced. In the case of rP>20, the deterioration tend to saturate, and the increases in magnetic field and iron loss are 1000 to 1500A/m and 2 to 4W/kg. They are related to grain size, and high grade with larger grain may have lager field increase and smaller iron loss increase. Anomalous eddy current losses scarcely increase in this region. In actual motors, the plastic deformation affects iron loss increase although exciting current increases a little.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.6 （2012） 特集：超電導材料の合成と特性評価

本誌掲載ページ: 435-440 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/132/6/132_435/_article/-char/ja/