Title:
WOUND IRON CORE PRODUCTION APPARATUS AND WOUND IRON CORE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/149523
Kind Code:
A1
Abstract:
This wound iron core production apparatus (40) produces a wound iron core by folding and stacking steel sheets (21), the wound iron core production apparatus (40) comprising a bending processing device (20) for bending the steel sheets (21) and a feeding roll (60) for feeding the steel sheets (21) to the bending processing device (20), the diameter of the feeding roll (60) being 5-500 mm, the pressure applied to the steel sheets (21) by the feeding roll (60) being 0.4-2.4 MPa, and the Shore hardness of the outer peripheral surface of the feeding roll (60) as measured at 45°C being A38-A90 inclusive.
Inventors:
MIZUMURA TAKAHITO (JP)
MOGI HISASHI (JP)
MOGI HISASHI (JP)
Application Number:
PCT/JP2023/003466
Publication Date:
August 10, 2023
Filing Date:
February 02, 2023
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
H01F41/02; H01F27/245
Foreign References:
| JP2018148036A | 2018-09-20 | |||
| JP2018060886A | 2018-04-12 | |||
| JPS6335746A | 1988-02-16 | |||
| JPS55132027A | 1980-10-14 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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