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1. (WO2009142401) NON-ORIENTED ELECTRICAL STEEL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/142401    International Application No.:    PCT/KR2009/002344
Publication Date: 26.11.2009 International Filing Date: 04.05.2009
IPC:
C22C 38/02 (2006.01)
Applicants: POSCO [KR/KR]; #1, Goedong-dong Nam-gu, Pohang-si Gyeongsangbuk-do 790-300 (KR) (For All Designated States Except US).
KIM, Jae-Hoon [KR/KR]; (KR) (For US Only).
KIM, Jae-Kwan [KR/KR]; (KR) (For US Only).
HAN, Chan-Hee [KR/KR]; (KR) (For US Only).
HIROMICHI, Koshiishi [JP/KR]; (KR) (For US Only)
Inventors: KIM, Jae-Hoon; (KR).
KIM, Jae-Kwan; (KR).
HAN, Chan-Hee; (KR).
HIROMICHI, Koshiishi; (KR)
Agent: HONG, Sung-Chul; (KR)
Priority Data:
10-2008-0048159 23.05.2008 KR
Title (EN) NON-ORIENTED ELECTRICAL STEEL
(FR) TÔLE MAGNÉTIQUE EN ACIER NON ORIENTÉE
(KO) 무방향성 전기강판
Abstract: front page image
(EN)The present invention relates to a non-oriented electrical steel sheet, which is widely used as material for the steel cores of rotating machinery such as drive motors for automobiles, and is composed of 1.3 – 2.5% Al, 0.8 – 2.0% Si, 0.6 – 1.2% Mn and 0.05 – 0.2% P by weight as well as residual Fe and other impurities which are unavoidably added. It satisfies the composition equations Al+Si+Mn+P= 3.9 – 4.45%, Al+Si= 2.5 – 3.8%, Al/Si= 0.65 – 3.1 and Mn/P= 4 – 16. The present invention provides a non-oriented electrical steel sheet with a specific resistance of 50 – 60μΩ ㎝, characterised by a cross-sectional Vickers hardness of Hv 185 or less. Accordingly, the present invention allows for the production of a non-oriented steel sheet, which is excellent in production, with greater or equal magnetism compared with a 35A300 – 35A230 (JIS specification) Fe-Si series non-oriented electric steel sheet.
(FR)L'invention concerne une tôle magnétique en acier non orientée, qui est largement utilisée en tant que matériau pour des noyaux d'acier de machines tournantes tels que des moteurs d'entraînement pour automobiles, et est composée de 1,3 – 2.5% Al, 0,8 – 2.0% Si, 0,6 – 1,2% Mn et 0,05 – 0,2% P en poids ainsi que du Fe résiduel et d'autres impuretés qui sont inévitablement ajoutées. Les équations de composition sont satisfaites Al+Si+Mn+P= 3,9 – 4,45%, Al+Si= 2,5 – 3,8%, Al/Si= 0,65 – 3,1 et Mn/P= 4 – 16. Cette invention concerne une tôle magnétique en acier non orientée à résistance spécifique de 50 – 60μΩ ㎝, caractérisée par une dureté Vickers de section transversale de Hv 185 ou moins. Par conséquent, cette invention permet la production d'une tôle magnétique en acier non orientée, excellente dans la production, à magnétisme supérieur ou égal à 35A300 – 35A230 (spécification JIS) de série Fe-Si sur la tôle magnétique en acier non orientée.
(KO)본 발명은 자동차 구동용 모터와 같은 회전기기의 철심재료로서 널리 이용되고 있는 무방향성 전기강판에 관한 것으로, 중량%로, Al: 1.3~2.5%, Si: 0.8~2.0%, Mn: 0.6~1.2%, P:0.05~0.2%와 잔부 Fe 및 기타 불가피하게 첨가되는 불순물로 구성되고, Al+Si+Mn+P= 3.9~4.45%, Al+Si= 2.5~3.8%, Al/Si= 0.65~3.1, Mn/P= 4~16 조성식을 만족하며, 고유저항이 50~60μΩ·㎝를 전제로 하되, 단면 비커스 경도가 Hv 185 이하인 것을 특징으로 하는 무방향성 전기강판을 제공한다. 이에 따라, 본 발명은 Fe-Si계 무방향성 전기강판 중 35A300 ~ 35A230 (JIS규격)과 비교하여 동등 혹은 그 이상의 자성을 가지며 생산성이 우수한 무방향성 전기강판을 제조할 수 있다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, 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, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, 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 (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, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)