無方向性電磁鋼板積層体の熱伝導特性とその異方性

Heat transfer properties of lamination stacks of the non-oriented electrical steels which important for heat management of high-performance motor core, were investigated. The thermal conductivity of in-plane direction of lamination stack almost coincided with the value which was estimated from the e...

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Bibliographic Details
Published in:	鉄と鋼 Vol. 107; no. 2; pp. 121 - 127
Main Authors:	山崎, 修一, 黒崎, 洋介, 脇坂, 岳顕
Format:	Journal Article
Language:	Japanese
Published:	一般社団法人日本鉄鋼協会 2021
Subjects:	anisotropic thermal conductivity interlaminar air gap lamination stack motor core non-oriented electrical steel
Online Access:	Get full text
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Summary:	Heat transfer properties of lamination stacks of the non-oriented electrical steels which important for heat management of high-performance motor core, were investigated. The thermal conductivity of in-plane direction of lamination stack almost coincided with the value which was estimated from the electrical resistance of the steel. The thermal conductivity of through-stack direction was depend on fixing methods of lamination stack and decreased with increase of the inter-lamellar air gap. Removal of the inter-lamellar air gap using glue is effective to improve heat transfer of the high performance motor core which adopted electrical steels with higher alloy and/or thinner gauge.
ISSN:	0021-1575 1883-2954
DOI:	10.2355/tetsutohagane.TETSU-2020-066