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1. (WO2014208419) ELECTRICAL CONTACT MATERIAL AND METHOD FOR MANUFACTURING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2014/208419 International Application No.: PCT/JP2014/066166
Publication Date: 31.12.2014 International Filing Date: 18.06.2014
IPC:
H01H 11/04 (2006.01) ,B22F 9/08 (2006.01) ,C22C 5/06 (2006.01) ,C22F 1/14 (2006.01) ,H01B 1/02 (2006.01) ,H01B 13/00 (2006.01) ,H01H 1/023 (2006.01) ,C22F 1/00 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
11
Apparatus or processes specially adapted for the manufacture of electric switches
04
of switch contacts
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
9
Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
02
using physical processes
06
starting from liquid material
08
by casting, e.g. through sieves or in water, by atomising or spraying
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
5
Alloys based on noble metals
06
Alloys based on silver
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
14
of noble metals or alloys based thereon
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
B
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1
Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
02
mainly consisting of metals or alloys
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
B
CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
13
Apparatus or processes specially adapted for manufacturing conductors or cables
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
1
Contacts
02
characterised by the material thereof
021
Composite material
023
having a noble metal as the basic material
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
Applicants: MITSUBISHI ELECTRIC CORPORATION[JP/JP]; 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008310, JP
Inventors: KEMMOTSU, Takayuki; JP
NAKANO, Yoshikazu; JP
ARAKI, Takeshi; JP
Agent: SOGA, Michiharu; JP
Priority Data:
2013-13168624.06.2013JP
Title (EN) ELECTRICAL CONTACT MATERIAL AND METHOD FOR MANUFACTURING SAME
(FR) MATÉRIAU DE CONTACT ÉLECTRIQUE ET PROCÉDÉ POUR FABRIQUER CELUI-CI
(JA) 電気接点材料及びその製造方法
Abstract:
(EN)  The present invention addresses the problem of providing an electrical contact material in which the oxide content can be increased, the manufacturing cost can be reduced, and exceptional levels of performance and workability as an electrical contact can be realized, and providing a method for manufacturing said material. The present invention is a method for manufacturing an electrical contact material characterized in including: a step for obtaining an alloy powder in which a gas that contains particles of an oxide of a metal other than Ag are atomized and rapidly solidified while being blown into molten Ag, and the oxide particles are finely dispersed, the oxide particles being controlled in said step so that the average particle diameter is 500 nm to 5 µm, and the mass ratio of the oxide particles in the gas to the total mass of the molten Ag and the oxide particles in the gas being controlled to 10-30% by mass; and a step for hot-extruding the alloy powder.
(FR)  La présente invention traite le problème de fourniture d’un matériau de contact électrique dans lequel le contenu d’oxyde peut être augmenté, le coût de fabrication peut être réduit, et des niveaux exceptionnels de performances et d’aptitude au façonnage en tant que contact électrique peuvent être réalisés, et de fourniture d’un procédé pour fabriquer ledit matériau. La présente invention est un procédé pour fabriquer un matériau de contact électrique caractérisé par le fait qu’il comprend : une étape pour obtenir une poudre d’alliage dans laquelle un gaz qui contient des particules d’un oxyde d’un métal autre que Ag est atomisé et rapidement solidifié tout en étant soufflé dans de l'Ag fondu, et les particules d’oxyde sont finement dispersées, les particules d’oxyde étant commandées dans ladite étape de telle sorte que le diamètre de particule moyen est de 500 nm à 5 µm, et le rapport de masse des particules d’oxyde dans le gaz sur la masse totale de l’Ag fondu et des particules d’oxyde dans le gaz étant commandé à 10-30 % en masse ; et une étape pour l'extrusion à chaud de la poudre d’alliage.
(JA)  本発明は、酸化物の量を増大させること及び低コストで製造することが可能であり、且つ電気接点としての性能及び加工性に優れる電気接点材料及びその製造方法を提供することを課題とする。本発明は、Ag以外の金属の酸化物粒子を含有するガスを溶融Agに吹き付けながら微粒化して急冷凝固し、該酸化物粒子が微細に分散した合金粉末を得る工程であって、該酸化物粒子の平均粒子径を500nm以上5μm以下、及び該ガス中の該酸化物粒子と該溶融Agとの合計質量に対する該ガス中の酸化物粒子の質量割合を10質量%以上30質量%以下に制御する工程と、該合金粉末を熱間押出加工する工程とを含むことを特徴とする電気接点材料の製造方法である。
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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)