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1. (WO2018180659) METHOD FOR PRODUCING COMPOSITE MAGNETIC BODY, MAGNETIC POWDER, COMPOSITE MAGNETIC BODY AND COIL COMPONENT
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Pub. No.: WO/2018/180659 International Application No.: PCT/JP2018/010689
Publication Date: 04.10.2018 International Filing Date: 19.03.2018
IPC:
H01F 1/147 (2006.01) ,B22F 1/02 (2006.01) ,B22F 3/00 (2006.01) ,B22F 3/10 (2006.01) ,B22F 3/24 (2006.01) ,H01F 1/24 (2006.01) ,H01F 17/04 (2006.01) ,H01F 41/02 (2006.01) ,C22C 38/00 (2006.01)
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
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
02
comprising coating of the powder
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
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
10
Sintering only
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
24
After-treatment of workpieces or articles
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
20
in the form of particles, e.g. powder
22
pressed, sintered, or bound together
24
the particles being insulated
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
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
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
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.[JP/JP]; 1-61, Shiromi 2-chome, Chuo-ku, Osaka-shi, Osaka 5406207, JP
Inventors: TAKAHASHI Takeshi; --
Agent: KAMATA Kenji; JP
MAEDA Hiroo; JP
Priority Data:
2017-07089331.03.2017JP
Title (EN) METHOD FOR PRODUCING COMPOSITE MAGNETIC BODY, MAGNETIC POWDER, COMPOSITE MAGNETIC BODY AND COIL COMPONENT
(FR) PROCÉDÉ DE PRODUCTION DE CORPS MAGNÉTIQUE COMPOSITE, POUDRE MAGNÉTIQUE, CORPS MAGNÉTIQUE COMPOSITE ET COMPOSANT DE BOBINE
(JA) 複合磁性体の製造方法、磁性粉体、複合磁性体およびコイル部品
Abstract:
(EN) This method for producing a composite magnetic body comprises: a press molding step wherein an Fe-Si-based metal magnetic material is press molded into a predetermined shape; a primary heat treatment step wherein an Si oxide coating film is formed on the surface of the metal magnetic material by subjecting the metal magnetic material to a heat treatment in an atmosphere having a first oxygen partial pressure; and a secondary heat treatment step wherein an Fe oxide layer is formed on at least a part of the surface of the Si oxide coating film by subjecting the metal magnetic material after the primary heat treatment to a heat treatment in an atmosphere having a second oxygen partial pressure that is higher than the first oxygen partial pressure.
(FR) L’invention concerne un procédé de production d'un corps magnétique composite comprenant : une étape de moulage à la presse dans laquelle un matériau magnétique métallique à base de Fe-Si est moulé par pression selon une forme prédéterminée ; une étape de traitement thermique primaire dans laquelle un film de revêtement d'oxyde de Si est formé sur la surface du matériau magnétique métallique en soumettant le matériau magnétique métallique à un traitement thermique dans une atmosphère ayant une première pression partielle d'oxygène ; et une étape de traitement thermique secondaire dans laquelle une couche d'oxyde de Fe est formée sur au moins une partie de la surface du film de revêtement d'oxyde de Si en soumettant le matériau magnétique métallique après le traitement thermique primaire à un traitement thermique dans une atmosphère ayant une seconde pression partielle d'oxygène qui est supérieure à la première pression partielle d'oxygène.
(JA) 複合磁性体の製造方法は、Fe-Si系の金属磁性材料を所定の形状に加圧成形する加圧成形工程と、金属磁性材料を第1の酸素分圧の雰囲気中で熱処理して、金属磁性材料の表面にSi酸化物被膜を形成する一次熱処理工程と、一次熱処理工程後の金属磁性材料を、第1の酸素分圧よりも高い第2の酸素分圧の雰囲気中で熱処理して、Si酸化物被膜の表面の少なくとも一部にFe酸化物層を形成する二次熱処理工程とを含む。
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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)