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Patent Searching and Data


Title:
HIGH-PERFORMANCE SENDUST POWDER CORE AND METHOD FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2014/175555
Kind Code:
A1
Abstract:
The present invention provides a high-performance sendust powder core and a method for the production thereof. The core is produced by using fine powder with a low apparent density prepared by high pressure water atomization without grinding and heat treatment of the powder, coating with a polyimide-based binder as an insulator between powders, and automatic compression molding in the temperature range of 300˚C to 600˚C using MoS2 powder, which can be lubricated at high temperatures, as a lubricant, thereby providing a sendust powder core having high molding density and molding strength, low iron loss and improved direct current bias characteristics with inexpensive manufacturing costs compared to typical sendust powder cores.

Inventors:
KIM HYUN-CHEUL (KR)
Application Number:
PCT/KR2014/002439
Publication Date:
October 30, 2014
Filing Date:
March 24, 2014
Export Citation:
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Assignee:
BAE EUN YOUNG (KR)
International Classes:
B22F3/12; B22F1/102; B22F3/24; H01F3/08
Foreign References:
KR20000046247A2000-07-25
JP2012151179A2012-08-09
US20100245015A12010-09-30
JP2005072112A2005-03-17
JP2003318014A2003-11-07
Attorney, Agent or Firm:
LEE, DU-HAN (KR)
이두한 (KR)
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