Effect of material parameters on iron losses in non-oriented electrlcal steel sheets

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  • 無方向性電磁鋼板の鉄損に及ぼす素材要因の影響
  • ム ホウコウセイ デンジ コウハン ノ テッソン ニ オヨボス ソザイ ヨウイ
  • Effect of material parameters on iron losses in non‐oriented electrical steel sheets

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Abstract

The effect of Si content, grain size and thickness on iron losses in non-oriented electrical steels sheets were investigated. The non-oriented electrical sheets with larger grain sizes have higher permeabilities, lower hysteresis losses and higher eddy current losses. However, the effect of grain size is weaker at higher magnetic fluxes. The ratios of eddy current losses to values due to classical theory increase sharply in thinner non-oriented electrical sheets. The permeabilities and hysteresis losses are little affected by thickness except non-oriented electrical sheets less than 0.2mm thick. The frequency dependences of magnetic properties in non-oriented electrical sheets are estimated from skin effects

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