EP 3617350 A1 20200304 - METHOD FOR COATING A METAL PART DESTINED TO BE SUBJECTED TO HIGH CONTACT PRESSURES AND METAL PART OBTAINED THEREFROM
Title (en)
METHOD FOR COATING A METAL PART DESTINED TO BE SUBJECTED TO HIGH CONTACT PRESSURES AND METAL PART OBTAINED THEREFROM
Title (de)
VERFAHREN ZUR BESCHICHTUNG EINES METALLTEILS, DAS DAZU BESTIMMT IST, HOHEN ANPRESSDRÜCKEN AUSGESETZT ZU WERDEN, UND DARAUS HERGESTELLTES METALLTEIL
Title (fr)
PROCÉDÉ DE REVÊTEMENT D'UNE PIÈCE MÉTALLIQUE DESTINÉE À ÊTRE SOUMISE À DE HAUTES PRESSIONS DE CONTACT ET PIÈCE MÉTALLIQUE OBTENUE À PARTIR DE CELUI-CI
Publication
Application
Priority
EP 18382639 A 20180831
Abstract (en)
The invention relates to a method for coating a metal part (P) destined to be subjected to high contact pressures, an external layer of the metal part (P) forming a substrate (S) to be coated, which comprises the steps consisting in a) Applying a nickel strike treatment to the substrate (S), such that a first layer (1) of nickel is obtained; b) Applying a copper electrolytic plating to the first layer (1) of nickel, such that a second layer (2) of copper is obtained; c) Applying a tin plating to the second layer (2) of copper, such that a third layer (3) is obtained, the interface between the second layer (2) and the third layer (3) being bronze. The invention also relates to coated parts using said method, the coated parts being preferably a pin and/or a box of a threaded joint for oil and gas applications
IPC 8 full level
C25D 7/00 (2006.01); C23C 18/16 (2006.01); C23C 18/52 (2006.01); C25D 3/12 (2006.01); C25D 3/38 (2006.01); C25D 5/12 (2006.01); E21B 17/00 (2006.01)
CPC (source: EP US)
C23C 18/1653 (2013.01 - EP); C23C 18/52 (2013.01 - EP); C25D 3/12 (2013.01 - EP US); C25D 3/38 (2013.01 - EP); C25D 5/12 (2013.01 - EP US); C25D 7/003 (2013.01 - EP)
Citation (applicant)
- US 4527815 A 19850709 - FRICK JOHN P [US]
- US 4758025 A 19880719 - FRICK JOHN P [US]
- US 2015159277 A1 20150611 - WOJCIK MATTHEW JOSEPH [US], et al
- US 2004086656 A1 20040506 - KOHL PAUL A [US], et al
- WO 8201015 A1 19820401 - SHIPLEY CO [US]
Citation (search report)
- [XI] EP 2128506 A1 20091202 - SUMITOMO METAL IND [JP], et al
- [XI] WO 2013073712 A1 20130523 - NIPPON STEEL & SUMITOMO METAL CORP [JP], et al
- [A] US 4816070 A 19890328 - HOLTZMAN ABRAHAM M [IL], et al
- [A] WO 03060198 A1 20030724 - HUNTING OILFIELD SERVICES LTD [GB], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 18382639 A 20180831; EP 2019073222 W 20190830