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1. (WO2019044093) LOW THERMAL EXPANSION ALLOY HAVING EXCELLENT LOW-TEMPERATURE STABILITY, METHOD FOR MANUFACTURING SAME, LOW THERMAL EXPANSION ALLOY POWDER, AND LAMINATION-MOLDED MEMBER
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Pub. No.: WO/2019/044093 International Application No.: PCT/JP2018/021328
Publication Date: 07.03.2019 International Filing Date: 04.06.2018
IPC:
C22C 38/00 (2006.01) ,B22F 1/00 (2006.01) ,B22F 3/105 (2006.01) ,B22F 3/16 (2006.01) ,B22F 9/08 (2006.01) ,B33Y 70/00 (2015.01) ,C22C 38/10 (2006.01)
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
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
10
Sintering only
105
by using electric current, laser radiation or plasma
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
12
Both compacting and sintering
16
in successive or repeated steps
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
[IPC code unknown for B33Y 70]
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
10
containing cobalt
Applicants:
日本鋳造株式会社 NIPPON CHUZO K.K. [JP/JP]; 神奈川県川崎市川崎区白石町2番1号 2-1, Shiraishi-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa 2109567, JP
Inventors:
半田 卓雄 HANDA Takuo; JP
劉 志民 RYU Shimin; JP
大山 伸幸 OYAMA Nobuyuki; JP
Agent:
高山 宏志 TAKAYAMA Hiroshi; JP
Priority Data:
2017-16677631.08.2017JP
2017-20497724.10.2017JP
Title (EN) LOW THERMAL EXPANSION ALLOY HAVING EXCELLENT LOW-TEMPERATURE STABILITY, METHOD FOR MANUFACTURING SAME, LOW THERMAL EXPANSION ALLOY POWDER, AND LAMINATION-MOLDED MEMBER
(FR) ALLIAGE À FAIBLE DILATATION THERMIQUE AYANT UNE EXCELLENTE STABILITÉ À BASSE TEMPÉRATURE, SON PROCÉDÉ DE FABRICATION, POUDRE D'ALLIAGE À FAIBLE DILATATION THERMIQUE ET ÉLÉMENT MOULÉ PAR STRATIFICATION
(JA) 低温安定性に優れる低熱膨張合金、その製造方法、低熱膨張合金粉末、および積層造形部材
Abstract:
(EN) Provided is a low thermal expansion alloy characterized by containing, in terms of mass%, no more than 0.05% C, no more than 0.4% Si, no more than 0.5% Mn, 32.5-34.5% Ni, and 2.0-4.5% Co, the Ni + 0.78 Co content being 35.5-36.5%, and the remainder comprising Fe and unavoidable impurities, the low thermal expansion alloy having a solidification structure in which the secondary dendrite arm spacing is 5 µm or less, and the low thermal expansion alloy having an average thermal expansion coefficient in the range of 0±0.5 ppm/°C at a temperature of 10-40°C and an Ms point of -100°C or lower.
(FR) L'invention concerne un alliage à faible dilatation thermique caractérisé en ce qu'il contient, en termes de % en masse, pas plus de 0,05 % de C, pas plus de 0,4 % de Si, pas plus de 0,5 % de Mn, 32,5 à 34,5 % de Ni, et 2,0 à 4,5 % de Co, la teneur en Ni + 0,78 Co étant de 35,5 à 36,5 %, et le reste comprenant du Fe et des impuretés inévitables, l'alliage à faible dilatation thermique ayant une structure de solidification dans laquelle l'espacement de bras de dendrite secondaire est de 5 µm ou moins, et l'alliage à faible dilatation thermique ayant un coefficient de dilatation thermique moyen dans la plage de 0 ± 0,5 ppm/°C à une température de 10 à 40 °C et un point Ms de -100 °C ou moins.
(JA) 質量%で、C:0.05%以下、Si:0.4%以下、Mn:0.5%以下、Ni:32.5~34.5%、Co:2.0~4.5%を含有し、かつNi+0.78Co:35.5~36.5%であり、残部がFeおよび不可避不純物からなり、デンドライト2次アーム間隔が5μm以下である凝固組織を有し、10~40℃の平均熱膨張係数が0±0.5ppm/℃の範囲で、かつMs点が-100℃以下であることを特徴とする低熱膨張合金を提供する。
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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)