(19)
(11) EP 2 365 108 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.09.2011 Bulletin 2011/38

(43) Date of publication A2:
14.09.2011 Bulletin 2011/37

(21) Application number: 11169291.9

(22) Date of filing: 11.12.2006
(51) International Patent Classification (IPC): 
C23C 28/00(2006.01)
C23C 30/00(2006.01)
C23C 2/26(2006.01)
(84) Designated Contracting States:
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

(30) Priority: 21.12.2005 EP 05112555

(62) Application number of the earlier application in accordance with Art. 76 EPC:
06829620.1 / 1963543

(71) Applicant: NV Bekaert SA
8550 Zwevegem (BE)

(72) Inventors:
  • Vanbrabant, Johan
    8550 Zwevegem (BE)
  • Vandenbranden, Wouter
    9070 Destelbergen (BE)
  • Lefebvre, Dominique
    8582 Outrijve (BE)
  • Bruyneel, Paul
    8710 Ooigem (BE)
  • Vancompernolle, Stijn
    9000 Gent (BE)

(74) Representative: Seynhaeve, Geert Filiep 
NV Bekaert SA D.I.E. Bekaertstraat 2
8550 Zwevegem
8550 Zwevegem (BE)

   


(54) A steel wire rope for use in a drive system


(57) A steel wire rope for use in a drive system such as found on a sliding vehicle door or window elevator is revealed. Particular about this rope is that it has a remarkable corrosion resistance in combination with a reduced wear of guiding pieces around which the wire rope is guided. The corrosion resistance is obtained by spreading magnesium oxide particles over the zinc or zinc alloy coated steel wires and bringing those particles in contact with the coating. The reduced wear is obtained by spreading fine abrasive particles over the coating. The spreading and contacting can be achieved by means of a liquid carrier such as an aliphatic mineral oil that is commonly used as the lubricant for such steel wire ropes. The magnesium oxide ensures an equal or better corrosion resistance even when reducing the thickness of the zinc coating. Reducing the thickness of the zinc coating increases the strength of the steel wire rope, while maintaining the diameter of the cord. The abrasive particles ensure a polishing of the wire leading to a smoother surface and reduced wear of the guiding pieces.





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