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1. (WO2016105157) ZN ALLOY PLATED STEEL SHEET HAVING EXCELLENT PHOSPHATABILITY AND SPOT WELDABILITY AND METHOD FOR MANUFACTURING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/105157    International Application No.:    PCT/KR2015/014253
Publication Date: 30.06.2016 International Filing Date: 24.12.2015
IPC:
C23C 2/06 (2006.01), C23C 2/28 (2006.01), C23C 2/16 (2006.01), C23C 2/40 (2006.01)
Applicants: POSCO [KR/KR]; (Goedong-dong) 6261, Donghaean-ro, Nam-gu Pohang-si, Gyeongsangbuk-do 37859 (KR)
Inventors: OH, Min-Suk; (KR).
KIM, Sang-Heon; (KR).
KIM, Tae-Chul; (KR).
KIM, Jong-Sang; (KR).
YOO, Bong-Hwan; (KR).
YUN, Hyun-Chu; (KR)
Agent: C&S PATENT AND LAW OFFICE; 7th Floor, Daelim Acrotel 13 Eonju-ro 30-gil Gangnam-gu, Seoul 06292 (KR)
Priority Data:
10-2014-0188046 24.12.2014 KR
10-2015-0185499 23.12.2015 KR
Title (EN) ZN ALLOY PLATED STEEL SHEET HAVING EXCELLENT PHOSPHATABILITY AND SPOT WELDABILITY AND METHOD FOR MANUFACTURING SAME
(FR) TÔLE D'ACIER À PLACAGE EN ALLIAGE AU ZINC AYANT UNE EXCELLENTE APTITUDE À LA PHOSPHATATION ET UNE EXCELLENTE SOUDABILITÉ PAR POINTS, ET SON PROCÉDÉ DE FABRICATION
(KO) 인산염 처리성과 스폿 용접성이 우수한 아연합금도금강판 및 그 제조방법
Abstract: front page image
(EN)A Zn alloy plated steel sheet having excellent phosphatability and spot weldability and a method for manufacturing the same are provided. In the Zn alloy plated steel sheet including a base steel sheet and a Zn alloy plating layer, the Zn alloy plating layer includes, by wt%, Al: 0.5-2.8%, Mg: 0.5-2.8%, and a remainder of Zn and inevitable impurities, and a cross-sectional structure of the Zn alloy plating layer includes, by area percentage, more than 50% of a Zn single phase structure and less than 50% of a Zn-Al-Mg-based intermetallic compound. A surface structure of the Zn alloy plating layer includes, by area percentage, 40% or less of a Zn single phase structure and 60% or more of a Zn-Al-Mg-based intermetallic compound.
(FR)L'invention concerne une tôle d'acier à placage en alliage au zinc ayant une excellente aptitude à la phosphatation et une excellente soudabilité par points, et son procédé de fabrication, la tôle d'acier à placage en alliage au zinc comprenant une tôle d'acier de base et une couche à placage en alliage au zinc, la couche à placage en alliage au zinc comprenant, en % en poids, Al : de 0,5 à 2,8 %, Mg : de 0,5 à 2,8 %, et le reste étant du Zn et des impuretés inévitables, et la texture de section transversale de la couche à placage en alliage au zinc comprenant, par taux d'aire de remplissage, plus de 50 % d'une texture de phase unique Zn et moins de 50 % d'un composé intermétallique à base de Zn-Al-Mg, et la texture de surface de la couche à placage en alliage au zinc comprenant, par taux d'aire de remplissage, 40 % ou moins de texture de phase unique Zn et 60 % ou plus d'un composé intermétallique à base de Zn-Al-Mg.
(KO)소지강판과 아연합금도금층을 포함하는 아연합금도금강판에 있어서, 상기 아연합금도금층은 중량%로, Al: 0.5~2.8%, Mg: 0.5~2.8%, 잔부 Zn 및 불가피한 불순물을 포함하고, 상기 아연합금도금층의 단면조직은 면적 점유율로 50% 초과의 Zn 단상조직 및 50% 미만의 Zn-Al-Mg계 금속간 화합물을 포함하고, 상기 아연합금도금층의 표면조직은 면적 점유율로 40% 이하의 Zn 단상조직 및 60% 이상의 Zn-Al-Mg계 금속간 화합물을 포함하는 인산염 처리성과 스폿 용접성이 우수한 아연합금도금강판과 이를 제조하는 방법이 개시된다.
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)