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1. (WO2011021582) PEARLITE RAIL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/021582    International Application No.:    PCT/JP2010/063760
Publication Date: 24.02.2011 International Filing Date: 13.08.2010
C22C 38/00 (2006.01), C22C 38/04 (2006.01), C22C 38/58 (2006.01)
Applicants: NIPPON STEEL CORPORATION [JP/JP]; 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071 (JP) (For All Designated States Except US).
UEDA Masaharu [JP/JP]; (JP) (For US Only).
SONOYAMA Kyohei [JP/JP]; (JP) (For US Only).
TANAHASHI Takuya [JP/JP]; (JP) (For US Only).
MIYAZAKI Teruhisa [JP/JP]; (JP) (For US Only).
IWANO Katsuya [JP/JP]; (JP) (For US Only)
Inventors: UEDA Masaharu; (JP).
SONOYAMA Kyohei; (JP).
MIYAZAKI Teruhisa; (JP).
IWANO Katsuya; (JP)
Agent: SHIGA Masatake; 1-9-2, Marunouchi, Chiyoda-ku, Tokyo 1006620 (JP)
Priority Data:
2009-189508 18.08.2009 JP
(JA) パーライト系レール
Abstract: front page image
(EN)Provided is a pearlite rail containing, by mass, 0.65-1.20% carbon, 0.05-2.00% silicon, and 0.05-2.00% manganese, with the remainder containing iron and unavoidable impurities. At least part of the head and at least part of the base of the provided rail are pearlite. The aforementioned pearlite regions have a surface hardness between 320 and 500 HV and a maximum surface roughness of at most 180 μm.
(FR)L'invention concerne un rail en perlite contenant, en masse: 0,65-1,20 % de carbone, 0,05-2,00 % de silicium, et 0,05-2,00 % de manganèse, le reste sous forme de fer et d'impuretés inévitables. Au moins une partie de la tête et au moins une partie de la base de ce rail sont en perlite. Les parties susmentionnées en perlite ont une dureté superficielle comprise entre 320 et 500 HV et une rugosité superficielle maximale de 180 μm tout au plus.
(JA) このパーライト系レールは、質量%で、C:0.65~1.20%と、Si:0.05~2.00%と、Mn:0.05~2.00%と、を含有し、残部がFeおよび不可避的不純物を含み;頭部の少なくとも一部および底部の少なくとも一部がパーライト組織であり;前記パーライト組織である部位の表面硬さがHv320~500の範囲でかつ最大表面粗さが180μm以下である。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, IS, JP, KE, KG, KM, 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, PE, PG, PH, PL, PT, RO, RS, RU, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, 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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)