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1. (WO2016104880) HOT PRESS FORMED ARTICLE HAVING EXCELLENT DELAMINATION RESISTANCE AND METHOD FOR MANUFACTURING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/104880    International Application No.:    PCT/KR2015/004327
Publication Date: 30.06.2016 International Filing Date: 29.04.2015
IPC:
C22C 38/38 (2006.01), C22C 38/28 (2006.01), C23C 2/12 (2006.01), C23C 2/28 (2006.01)
Applicants: POSCO [KR/KR]; (Goedong-dong) 6261, Donghaean-ro, Nam-gu Pohang-si Gyeongsangbuk-do 790-300 (KR)
Inventors: KIM, Heung-Yun; (KR).
SOHN, Il-Ryoung; (KR).
BAE, Dae-Chul; (KR)
Agent: C&S PATENT AND LAW OFFICE; 7th Floor, Daelim Acrotel 13 Eonju-ro 30-gil Gangnam-gu Seoul 135-971 (KR)
Priority Data:
10-2014-0189098 24.12.2014 KR
Title (EN) HOT PRESS FORMED ARTICLE HAVING EXCELLENT DELAMINATION RESISTANCE AND METHOD FOR MANUFACTURING SAME
(FR) ÉLÉMENT DE MOULAGE HPF PRÉSENTANT UNE EXCELLENTE RÉSISTANCE AU DÉLAMINAGE ET SON PROCÉDÉ DE FABRICATION
(KO) 내박리성이 우수한 HPF 성형부재 및 그 제조방법
Abstract: front page image
(EN)Provided are an hot press formed (HPF) article having excellent delamination resistance, and a method for manufacturing same. The present invention relates to an HPF article which has a melted aluminum plating layer formed on the surface of a base steel sheet and has excellent delamination resistance, wherein the base steel sheet comprises: 0.18-0.25% by weight of C; 0.1-1.0% by weight of Si; 0.9-1.5% by weight of Mn; 0.03% by weight or less of P; 0.01% by weight or less of S; 0.01-0.05% by weight of Al; 0.05-0.5% by weight of Cr; 0.01-0.05% by weight of Ti; 0.001-0.005% by weight of B; 0.009% by weight or less of N; and the balance Fe and other impurities, and wherein the plating layer consists of a soft diffusion layer and a hard alloy layer, the hard alloy layer having a tau layer irregularly and non-continuously dispersed and distributed on the inside thereof at 10% or more of the entire area fraction so that the difference in hardness between the alloy layer and the diffusion layer is 400 (Hv) or less.
(FR)L'invention concerne un élément de moulage HPF présentant une excellente résistance au délaminage, et son procédé de fabrication. La présente invention concerne un élément de moulage HPF possédant une couche de plaquage en aluminium fondu formée sur la surface d'une tôle d'acier de base et présentant une excellente résistance au délaminage, la tôle d'acier de base comprenant : de 0,18 à 0,25 % en poids de C; de 0,1 à 1,0 % en poids de Si; de 0,9 à 1,5 % en poids de Mn; 0,03 % en poids ou moins de P; 0,01 % en poids ou moins de S; de 0,01 à 0,05 % en poids d'Al; de 0,05 à 0,5 % en poids de Cr; de 0,01 à 0,05 % en poids de Ti; de 0,001 à 0,005 % en poids de B; 0,009 % en poids ou moins de N; et le reste étant constitué de Fe et d'autres impuretés, et la couche de placage étant constituée d'une couche de diffusion souple et d'une couche d'alliage dure, la couche d'alliage dure ayant une couche tau dispersée de manière irrégulière et non continue et répartie sur l'intérieur de cette dernière sur 10 % ou plus de la fraction de zone entière de sorte que la différence de dureté entre la couche d'alliage et la couche de diffusion est de 400 (Hv) ou moins.
(KO)내박리성이 우수한 HPF 성형부재 및 그 제조방법이 제공된다. 본 발명은, 소지강판의 표면에 용융알루미늄 도금층이 형성되고 있는 HPF 성형부재에 있어서, 상기 소지강판은, 중량%로 C:0.18~0.25%, Si:0.1~1.0%, Mn:0.9~1.5%, P:0.03% 이하, S:0.01%이하, Al:0.01~0.05%, Cr:0.05~0.5%, Ti:0.01~0.05%, B:0.001~0.005, N:0.009%이하, 잔부 Fe 및 기타 불순물을 포함하고; 상기 도금층은 연질의 확산층과 경질의 합금층으로 이루어지고; 상기 합금층과 확산층간의 경도차이가 400(Hv) 이하가 되도록, 상기 합금층 내부에는 타우층이 전체 면적분율로 10%이상으로 불규칙하고 불연속적으로 분산 분포되어 있음을 특징으로 하는 내박리성이 우수한 HPF 성형부재에 관한 것이다.
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, 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 (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: Korean (KO)
Filing Language: Korean (KO)