Title:
INSULATING MATERIAL FOR SLOT COIL OF ROTATING MACHINE AND MOLDING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/215482
Kind Code:
A1
Abstract:
A thermoplastic synthetic resin, which has flowed into tab-shaped flanges 16, 16 from gates 173, 173 on both sides, collides with a facing wall 161 of each tab-shaped flange 16, thereby changing direction by 90 degrees and reducing the inflow speed, and fills the tab-shaped flanges 16, 16 and long-sided flanges 15, 15. Subsequently, the thermoplastic synthetic resin flows into thin outer peripheral walls 131, 132 and partition walls 133 at an optimal inflow speed; therefore, the flow of the thermoplastic synthetic resin improves, thus making it possible to create a smooth molded article with an accurate shape. The tab-shaped flanges 16, 16 and the long-sided flanges 15, 15 function as runners, and the thermoplastic synthetic resin smoothly flows into the thin outer peripheral walls 131, 132 and the partition walls 133.
Inventors:
OGAWA NORITAKA (JP)
Application Number:
PCT/JP2021/016218
Publication Date:
October 28, 2021
Filing Date:
April 21, 2021
Export Citation:
Assignee:
NAKAGAWA SPECIAL STEEL INC (JP)
International Classes:
B29C45/00; B29C45/38; H02K3/04; H02K3/34; H02K15/02; H02K15/085
Foreign References:
| JP2003070201A | 2003-03-07 | |||
| JP2019134677A | 2019-08-08 | |||
| JP2012148292A | 2012-08-09 | |||
| JP2008035687A | 2008-02-18 | |||
| JP2019161964A | 2019-09-05 | |||
| JP2018125924A | 2018-07-02 |
Other References:
See also references of EP 4140689A4
Attorney, Agent or Firm:
TOMISAKI Motonari et al. (JP)
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