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1. (WO2013161122) GALVANIZED STEEL TUBE, AND METHOD FOR MANUFACTURING GALVANIZED STEEL TUBE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/161122    International Application No.:    PCT/JP2012/082397
Publication Date: 31.10.2013 International Filing Date: 13.12.2012
IPC:
C23C 2/06 (2006.01), C22C 18/04 (2006.01), C23C 2/02 (2006.01), C23C 2/38 (2006.01)
Applicants: NIPPON STEEL & SUMITOMO METAL CORPORATION [JP/JP]; 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071 (JP)
Inventors: OKAMOTO, Kouichi; (JP).
TAKEBAYASHI, Hiroshi; (JP).
SOGA, Yoshitaka; (JP)
Agent: UEBA Hidetoshi; INTELIX Patent & Law Firm, Dojima Axis Building, 2-28, Dojimahama 2-chome, Kita-ku, Osaka-shi, Osaka 5300004 (JP)
Priority Data:
2012-098298 24.04.2012 JP
Title (EN) GALVANIZED STEEL TUBE, AND METHOD FOR MANUFACTURING GALVANIZED STEEL TUBE
(FR) TUBE EN ACIER GALVANISÉ, ET PROCÉDÉ DE FABRICATION DU TUBE EN ACIER GALVANISÉ
(JA) 溶融亜鉛めっき鋼管及び溶融亜鉛めっき鋼管の製造方法
Abstract: front page image
(EN)Provided are a galvanized steel tube in which peeling of the plating layer does not readily occur even when the galvanized steel tube is worked, and a method for manufacturing the galvanized steel tube. The galvanized steel tube of the present invention is provided with a steel tube and a plating layer formed on a surface of the steel tube. The value fn defined by the formula below is at least 99.9 throughout the entire depth of the plating layer. fn = Fe + Al + Zn, where the element symbols in the formula represent the content (mass%) of each element in the plating layer.
(FR)La présente invention concerne un tube en acier galvanisé dans lequel on n'observe pas directement d'écaillage de la couche de placage même lorsque le tube en acier galvanisé est travaillé. L'invention concerne également un procédé de fabrication du tube en acier galvanisé. Le tube en acier galvanisé selon la présente invention comprend un tube en acier et une couche de placage formée sur une surface du tube en acier. La valeur fn définie par la formule ci-dessous est d'au moins 99,9 sur toute la profondeur de la couche de placage. fn = Fe + Al + Zn, les symboles des éléments dans la formule représentant la teneur (en % en masse) de chaque élément dans la couche de placage.
(JA) 加工してもめっき層の剥離が生じにくい溶融亜鉛めっき鋼管、及びその溶融亜鉛めっき鋼管の製造方法を提供する。溶融亜鉛めっき鋼管は、鋼管と、鋼管の表面に形成されためっき層とを備える。そして、めっき層の全深さにわたって、下式で定義されるfnが99.9以上である。 fn=Fe+Al+Zn ここで、上式の元素記号には、めっき層中の各元素の含有量(質量%)が代入される。
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, 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, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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, 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, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)