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1. (WO2018159617) WIRE ROD FOR CUTTING
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/159617 International Application No.: PCT/JP2018/007283
Publication Date: 07.09.2018 International Filing Date: 27.02.2018
IPC:
C22C 38/00 (2006.01) ,C22C 38/60 (2006.01) ,C21D 8/06 (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
Applicants: JFE STEEL CORPORATION[JP/JP]; 2-3, Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo 1000011, JP
Inventors: IMANAMI Yuta; JP
FUKUOKA Kazuaki; JP
NISHIMURA Kimihiro; JP
Agent: SUGIMURA Kenji; JP
Priority Data:
2017-03769528.02.2017JP
2017-03770528.02.2017JP
Title (EN) WIRE ROD FOR CUTTING
(FR) TIGE DE FIL DESTINÉE À COUPER
(JA) 切削加工用線材
Abstract:
(EN) Provided is a wire rod whereby excellent machinability is demonstrated regardless of tool material type and lubricant type, and even when a lubricant is not used. A wire rod for cutting, having a specific component composition and having a Vickers hardness satisfying expressions (1) and (2) when the average aspect ratio of ferrite grains at a position 1/4 the diameter from the surface of the wire rod for cutting is more than 2.8, and satisfying expressions (3) and (4) when the average aspect ratio is 2.8 or less. (1): Have ≤ 350. (2): Hσ ≤ 30. (3): Have ≤ 250. (4): Hσ ≤ 20.
(FR) L'invention concerne une tige de fil permettant d'obtenir une excellente usinabilité, indépendamment du type de matériau d'outil et du type de lubrifiant, et même lorsqu'un lubrifiant n'est pas utilisé. Une tige de fil destinée à couper, présentant une composition de constituant spécifique et présentant une dureté Vickers satisfaisant les expressions (1) et (2) lorsque le rapport d'aspect moyen des grains de ferrite à une position située au quart du diamètre à partir de la surface de la tige de fil destinée à couper est supérieur à 2,8, et satisfaisant les expressions (3) et (4) lorsque le rapport d'aspect moyen est inférieur ou égal à 2,8. (1): Have ≤ 350. (2): Hσ ≤ 30. (3): Have ≤ 250. (4): Hσ ≤ 20.
(JA) 工具材種および潤滑剤種を問うことなく、さらには潤滑剤を使用しない場合であっても、優れた被削性を発揮する線材を提供する。切削加工用線材であって、特定の成分組成を有し、前記切削加工用線材の表面から直径の1/4位置におけるフェライト粒の平均アスペクト比が2.8超の場合、下記(1)および(2)式を満足し、前記平均アスペクト比が2.8以下の場合、下記(3)および(4)式を満足する、ビッカース硬さを有する、切削加工用線材。 Have≦350 …(1) Hσ≦30 …(2) Have≦250 …(3) Hσ≦20 …(4)
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)