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1. (WO2019065500) METHOD FOR MANUFACTURING POWDER MAGNETIC CORE, POWDER MAGNETIC CORE, AND INDUCTOR
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Pub. No.: WO/2019/065500 International Application No.: PCT/JP2018/035066
Publication Date: 04.04.2019 International Filing Date: 21.09.2018
IPC:
H01F 41/02 (2006.01) ,B22F 1/00 (2006.01) ,B22F 3/00 (2006.01) ,C22C 38/00 (2006.01) ,H01F 1/153 (2006.01) ,H01F 17/04 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41
Apparatus or processes specially adapted for manufacturing or assembling the devices covered by this subclass
02
for manufacturing cores, coils or magnets
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
1
Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
F
WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1
Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01
of inorganic materials
03
characterised by their coercivity
12
of soft-magnetic materials
14
metals or alloys
147
Alloys characterised by their composition
153
Amorphous metallic alloys, e.g. glassy metals
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
17
Fixed inductances of the signal type
04
with magnetic core
Applicants:
株式会社トーキン TOKIN CORPORATION [JP/JP]; 宮城県仙台市太白区郡山六丁目7番1号 7-1, Koriyama 6-chome, Taihaku-ku, Sendai-shi, Miyagi 9828510, JP
Inventors:
千葉 美帆 CHIBA Miho; JP
浦田 顕理 URATA Akiri; JP
Agent:
山崎 拓哉 YAMAZAKI Takuya; JP
Priority Data:
2017-19068229.09.2017JP
Title (EN) METHOD FOR MANUFACTURING POWDER MAGNETIC CORE, POWDER MAGNETIC CORE, AND INDUCTOR
(FR) PROCÉDÉ DE FABRICATION DE NOYAU MAGNÉTIQUE EN POUDRE, NOYAU MAGNÉTIQUE EN POUDRE ET INDUCTEUR
(JA) 圧粉磁心の製造方法、圧粉磁心及びインダクタ
Abstract:
(EN) This method for manufacturing a powder magnetic core is provided with: a step for heat-treating amorphous soft magnetic alloy powder to obtain nanocrystal powder; a step for obtaining granulated powder from nanocrystal powder, malleable powder, and a binder; a step for pressure-molding the granulated powder to obtain a green compact; a step for curing the binder by heat-treating the green compact at a temperature which is equal to or higher than the curing initiation temperature of the binder and lower than the crystallization initiation temperature of the amorphous soft magnetic alloy powder.
(FR) L'invention concerne un procédé de fabrication d'un noyau magnétique en poudre, comprenant : une étape de traitement thermique de poudre d'alliage magnétique tendre amorphe permettant d'obtenir une poudre nanocristalline ; une étape d'obtention de poudre granulée à partir d'une poudre nanocristalline, d'une poudre malléable et d'un liant ; une étape de moulage par pression de la poudre granulée permettant d'obtenir un comprimé cru ; une étape de durcissement du liant par traitement thermique du comprimé cru à une température supérieure ou égale à la température d'initiation de durcissement du liant et inférieure à la température d'initiation de cristallisation de la poudre d'alliage magnétique tendre amorphe.
(JA) 圧粉磁心の製造方法は、非晶質軟磁性合金粉末を熱処理してナノ結晶粉末を得る工程と、ナノ結晶粉末と展性粉末と結合材とから造粒粉末を得る工程と、造粒粉末を加圧成型して圧粉体を得る工程と、結合材の硬化開始温度以上かつ前記非晶質軟磁性合金粉末の結晶化開始温度未満の温度で圧粉体を熱処理し、結合材を硬化させる工程と、を備える。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)