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1. (WO2017098964) STEEL WIRE FOR MECHANICAL STRUCTURAL COMPONENTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/098964 International Application No.: PCT/JP2016/085371
Publication Date: 15.06.2017 International Filing Date: 29.11.2016
IPC:
C22C 38/00 (2006.01) ,C22C 38/60 (2006.01) ,C21D 8/06 (2006.01) ,C21D 9/52 (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
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
60
containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
8
Modifying the physical properties by deformation combined with, or followed by, heat treatment
06
during manufacturing of rods or wires
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
9
Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor
52
for wires; for strips
Applicants:
株式会社神戸製鋼所 KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) [JP/JP]; 兵庫県神戸市中央区脇浜海岸通二丁目2番4号 2-4, Wakinohama-Kaigandori 2-chome, Chuo-ku, Kobe-shi, Hyogo 6518585, JP
Inventors:
佐々木 雄基 SASAKI, Yuki; --
高知 琢哉 KOCHI, Takuya; --
千葉 政道 CHIBA, Masamichi; --
坂田 昌之 SAKATA, Masayuki; --
Agent:
鮫島 睦 SAMEJIMA, Mutsumi; JP
山尾 憲人 YAMAO, Norihito; JP
Priority Data:
2015-23844507.12.2015JP
Title (EN) STEEL WIRE FOR MECHANICAL STRUCTURAL COMPONENTS
(FR) FIL D'ACIER POUR ÉLÉMENTS STRUCTURAUX MÉCANIQUES
(JA) 機械構造部品用鋼線
Abstract:
(EN) Provided is a steel wire for mechanical structural components, substantially comprising C: 0.3-0.6 mass%, Si: 0.05-0.5 mass%, Mn: 0.2-1.7 mass%, P: greater than 0 mass% to no more than 0.03 mass%, S: 0.001-0.05 mass%, Al: 0.005-0.1 mass%, and N: 0-0.015 mass%, the balance being iron and unavoidable impurities. The metal structure is composed of ferrite and cementite; the standard deviation σc of the cementite count contained in a 5 × 5 μm area satisfies expression (1) below; and the average particle size of the cementite is 0.5 μm or greater. 1.5 ≤ σc ≤ 4.5 (1), where [C%] indicates the carbon content expressed in mass%.
(FR) L'invention concerne un fil d'acier pour des éléments structuraux mécaniques, comprenant sensiblement C : 0,3 à 0,6 % en masse, Si : 0,05 à 0,5 % en masse, Mn : 0,2 à 1,7 % en masse, P: plus de 0 % en masse à pas plus de 0,03 % en masse, S : 0,001 à 0,05 % en masse, Al : de 0,005 à 0,1 % en masse, et N : 0-0 015 % en masse, le reste étant du fer et des impuretés inévitables. La structure métallique est composée de ferrite et cémentite; l'écart type σc de la quantité de cémentite contenue dans une zone 5 × 5 μm satisfait l'expression (1) ci-dessous; et la taille moyenne de particule de la cémentite étant de 0.5 μm ou plus. 1,5 ≤ σc ≤ 4,5 (1), où [C %] indique la teneur en carbone exprimée en % en masse.
(JA) C :0.3質量%~0.6質量%、Si:0.05質量%~0.5質量%、Mn:0.2質量%~1.7質量%、P :0質量%超、0.03質量%以下、S :0.001質量%~0.05質量%、Al:0.005質量%~0.1質量%、N :0質量%~0.015質量%、および残部:鉄および不可避不純物、から実質的に成り、金属組織が、フェライトおよびセメンタイトより構成され、5μm×5μmの面積に含まれるセメンタイト数の標準偏差σcが下記(1)式を満足し、セメンタイトの平均粒径が0.5μm以上である機械構造部品用鋼線である。 1.5≦σc≦4.5 (1) ただし、[C%]は質量%で示したCの含有量を示す。
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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, KE, KG, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)