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1. (WO2018042929) ROLL OUTER LAYER MATERIAL FOR ROLLING, AND COMPOSITE ROLL FOR ROLLING
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/042929 International Application No.: PCT/JP2017/026246
Publication Date: 08.03.2018 International Filing Date: 20.07.2017
IPC:
B21B 27/00 (2006.01) ,B22D 13/02 (2006.01) ,C21D 9/38 (2006.01) ,C22C 27/04 (2006.01) ,C22C 30/00 (2006.01) ,C22F 1/00 (2006.01) ,C22F 1/18 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
B
ROLLING OF METAL
27
Rolls; Lubricating, cooling or heating rolls while in use
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
D
CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
13
Centrifugal casting; Casting by using centrifugal force
02
of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
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
38
for roll bodies
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
27
Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/ or C22C16/130
04
Alloys based on tungsten or molybdenum
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
30
Alloys containing less than 50% by weight of each constituent
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
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
16
of other metals or alloys based thereon
18
High-melting or refractory metals or alloys based thereon
Applicants:
JFEスチール株式会社 JFE STEEL CORPORATION [JP/JP]; 東京都千代田区内幸町二丁目2番3号 2-3, Uchisaiwai-cho 2-chome, Chiyoda-ku, Tokyo 1000011, JP
Inventors:
市野 健司 ICHINO Kenji; JP
鈴木 健史 SUZUKI Takeshi; JP
岩田 直道 IWATA Naomichi; JP
持田 哲男 MOCHIDA Tetsuo; JP
石田 清仁 ISHIDA Kiyohito; JP
大沼 郁雄 OHNUMA Ikuo; JP
Agent:
熊坂 晃 KUMASAKA Akira; JP
井上 茂 INOUE Shigeru; JP
Priority Data:
2016-17138202.09.2016JP
Title (EN) ROLL OUTER LAYER MATERIAL FOR ROLLING, AND COMPOSITE ROLL FOR ROLLING
(FR) MATÉRIAU DE COUCHE EXTERNE POUR CYLINDRE DE LAMINAGE, ET CYLINDRE COMPOSITE DE LAMINAGE
(JA) 圧延用ロール外層材および圧延用複合ロール
Abstract:
(EN) Provided are a roll outer layer material and a composite roll for rolling that have remarkably improved abrasion resistance. A roll outer layer material that has a W-Co-based alloy composition: that is a graded composition in which W content decreases in the radial direction from an outer circumferential side toward an inner circumferential side; and that, at an outer layer material surface that is located at a maximum diameter during rolling, contains, by mass%, 25%-70% of W, 5%-45% of Co, 0.6%-3.5% of C, 0.05%-3% of Si, 0.05%-3% of Mn, and 1%-15% of Mo, the remainder being unavoidable impurities.
(FR) L’invention fournit un matériau de couche externe dont la résistance à l’usure est remarquablement améliorée, et un cylindre composite de laminage. Ce matériau de couche externe possède une composition d’alliage à base de W-Co. Plus précisément, ce matériau de couche externe présente une composition progressive dans laquelle la teneur en W diminue en allant d’un côté périphérique externe vers un côté périphérique interne dans la direction radiale contient, en % en masse W:25~70% et Co:5~45%, à sa surface en une position correspondant au diamètre maximal lors de sa mise en œuvre par laminage. En outre, ce matériau de couche externe comprend C:0,6~3,5%, Si:0,05~3%, Mn:0,05~3% et Mo:1~15%, le reste étant constitué des impuretés inévitables.
(JA) 耐摩耗性が顕著に向上したロール外層材および圧延用複合ロールを提供する。W含有量が径方向で外周側から内周側に向けて低下する傾斜組成で、圧延使用時の最大径に相当する位置の外層材表面で、質量%で、W:25~70%、Co:5~45%を含み、さらにC:0.6~3.5%、Si:0.05~3%、Mn:0.05~3%、Mo:1~15%を含有し、残部が不可避的不純物からなるW-Co 基合金組成を有するロール外層材とする。
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)