LAMINATED CORE AND MANUFACTURING METHOD THEREFOR

Title:

LAMINATED CORE AND MANUFACTURING METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2023/074584

Kind Code:

A1

Abstract:

Provided is a laminated core (10) provided with: a laminate (10A) of electromagnetic steel plates (W); and, a granular oxide that contains magnetite and covers a side surface (20) of the laminate (10A), the contact angle of water droplets from when the water droplets are dripped onto the side surface (20) covered by the granular oxide to when 20 minutes have elapsed being 80° or greater. Provided is the laminated core (10), in which, when the peak heights for which 2θ is detected to be within the ranges of 41-42° and 38-39° by XRD measurement of the side surface (20) covered by the granular oxide are H1 and H2 respectively, H1/(H1+H2) is 0.8 or greater.

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Inventors:

MORIYAMA HIROYUKI (JP)
BABA SHINTARO (JP)
KAKU HIROKI (JP)

Application Number:

PCT/JP2022/039367

Publication Date:

May 04, 2023

Filing Date:

October 21, 2022

Export Citation:

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Assignee:

MITSUI HIGH TEC (JP)

International Classes:

H01F3/02; C21D9/00; C21D9/46; C23C8/18; H01F27/245; H01F41/02; H02K15/02

Foreign References:

JP2021027737A	2021-02-22
JP2016125086A	2016-07-11
JP2015042015A	2015-03-02

Attorney, Agent or Firm:

SHIN-EI PATENT FIRM, P.C. (JP)

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