Title:
METAL SOFT MAGNETIC POWDER CORE RESISTANT TO HIGH TEMPERATURE HEAT TREATMENT
Document Type and Number:
WIPO Patent Application WO/2019/029147
Kind Code:
A1
Abstract:
A metal soft magnetic powder core resistant to high temperature heat treatment, made of metal soft magnetic powder and silicone resin, the mass ratio of the metal soft magnetic powder to the silicone resin being 0.5-5: 100. The present metal soft magnetic core undergoes high-temperature heat treatment in a non-oxidising gas atmosphere, so that the internal stress is fully released and hysteresis loss is reduced; and the coating layer is unbroken, maintaining integrity and having good insulation effects. The complete, crack-free, and uniform thickness coating layer increases high temperature resistance, facilitating high temperature annealing of the metal soft magnetic core, the core loss being reduced by 50mW/cm3.
Inventors:
GUO XIONGZHI (CN)
ZHANG YUNFAN (CN)
XIAO QIANG (CN)
XU FANGSHENG (CN)
ZHOU JIN (CN)
LIU HUAN (CN)
HE KAI (CN)
ZHANG YUNFAN (CN)
XIAO QIANG (CN)
XU FANGSHENG (CN)
ZHOU JIN (CN)
LIU HUAN (CN)
HE KAI (CN)
Application Number:
PCT/CN2018/076092
Publication Date:
February 14, 2019
Filing Date:
February 09, 2018
Export Citation:
Assignee:
POCO HOLDING CO LTD (CN)
International Classes:
H01F1/147; H01F1/26
Foreign References:
| CN104867640A | 2015-08-26 | |||
| CN104031601A | 2014-09-10 | |||
| CN107464650A | 2017-12-12 | |||
| CN107578872A | 2018-01-12 | |||
| CN107446352A | 2017-12-08 | |||
| CN106205936A | 2016-12-07 | |||
| CN104098751A | 2014-10-15 | |||
| EP2723154A1 | 2014-04-23 | |||
| CN104028750A | 2014-09-10 | |||
| CN104028749A | 2014-09-10 |
Attorney, Agent or Firm:
SHENZHEN MINGRIJINDIAN INTELLECTUAL PROPERTY AGENCY FIRM (GENERAL) (CN)
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