Title (en)

Steel tube having improved corrosion-resistance and method for manufacturing the same

Title (de)

Stahlrohr mit verbesserter Korrosionbeständigkeit und Verfahren zur Herstellung

Title (fr)

Tube d'acier ayant une résistance à la corrosion amèliorée et méthode pour sa fabrication

Publication

EP 1760166 A3 20080416 (EN)

Application

EP 06116733 A 20060706

Priority

KR 20050081692 A 20050902

Abstract (en)

[origin: EP1760166A2] Disclosed is a steel tube with superior corrosion-resistance treated with plating and a manufacturing method of the same. The manufacturing method of the steel tube includes the steps of: preheating a steel tube formed through a milling process; maintaining the temperature of the preheated steel tube above a predetermined temperature, and creating a reduction atmosphere; melting an Al-Zn alloy containing 55 wt% of aluminum and 43.4-44.9 wt.% of zinc, and plating the molten alloy over the surface of the steel tube; cooling the steel tube; and coating the surface of the steel tube with a resin.

IPC 8 full level

C23C 2/02 (2006.01); C23C 2/12 (2006.01); C23C 2/26 (2006.01)

CPC (source: EP KR US)

B05D 7/146 (2013.01 - EP); B21D 51/00 (2013.01 - KR); C21D 1/00 (2013.01 - KR); C23C 2/00 (2013.01 - EP KR US); C23C 2/00342 (2022.08 - EP KR US); C23C 2/0035 (2022.08 - EP KR US); C23C 2/00362 (2022.08 - EP KR US); C23C 2/0038 (2022.08 - EP KR US); C23C 2/0222 (2022.08 - EP KR US); C23C 2/0224 (2022.08 - EP KR US); C23C 2/024 (2022.08 - EP KR US); C23C 2/12 (2013.01 - EP); C23C 2/16 (2013.01 - EP); C23C 2/24 (2013.01 - EP); C23C 2/26 (2013.01 - EP KR US); C23C 28/00 (2013.01 - EP); C23C 28/021 (2013.01 - EP); B05D 2350/65 (2013.01 - EP)

Citation (search report)

• [YX] US 3559280 A 19710202 - MAILHIOT ALFRED F, et al
• [XY] US 2004022951 A1 20040205 - MAURUS NORBERT [DE]
• [X] US 6428851 B1 20020806 - FRIEDERSDORF FRITZ J [US], et al
• [Y] EP 0545408 A1 19930609 - ARMCO STEEL CO LP [US]
• [Y] EP 0855450 A1 19980729 - KAWASAKI STEEL CO [JP], et al
• [Y] EP 0227386 A2 19870701 - ALLIED TUBE & CONDUIT CORP [US]
• [A] JP S59193278 A 19841101 - NISSHIN STEEL CO LTD

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

DOCDB simple family (publication)

EP 1760166 A2 20070307; EP 1760166 A3 20080416; EP 1760166 B1 20160914; CN 1924075 A 20070307; CN 1924075 B 20100602; JP 2007070725 A 20070322; JP 4423273 B2 20100303; KR 100667174 B1 20070112

DOCDB simple family (application)

EP 06116733 A 20060706; CN 200610112176 A 20060815; JP 2006186782 A 20060706; KR 20050081692 A 20050902