High-strength bead wire

Tringle de talon de pneumatique haute résistance

Wulstkern mit hoher Festigkeit


A steel wire (10) adapted for the reinforcement of the bead area of rubber tyres has a diameter d ranging from 0.75 mm to 2.50 mm, a tensile strength lying above 3100 - 600xd MPa, d being expressed in mm, a rubber adherable coating in the form of a copper alloy with a weight ranging from 0.10 to 1.40 grams per kilogram steel wire, and has a surface which is substantially free of residual macro tensile stresses in order to improve the torsional behaviour. The residual macro tensile stresses may be removed by subjecting the steel wire (10) to a series of subsequent bendings over rollers (12).




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Patent Citations (7)

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NO-Patent Citations (0)


Cited By (10)

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    EP-0751015-A1January 02, 1997SedeproTyre comprising circumferential cords for the anchoring of the carcass, method of preparation of such cords
    EP-0856422-A1August 05, 1998N.V. Bekaert S.A.Renfort de talon obtenu à partir d'un fil unique
    EP-0938985-A1September 01, 1999N.V. Bekaert S.A.Tringle léger avec des fils d'acier à haute résistance
    EP-1336666-A1August 20, 2003Bhp Steel (Jla) Pty. Ltd.Kaltverformbares metallbeschichtetes Bandmaterial
    FR-2736006-A1January 03, 1997SedeproPneumatique comportant des cables circonferentiels pour ancrer la carcasse, procede de preparation de tels cables
    US-5702548-ADecember 30, 1997SedeproTire having circumferential cables for anchoring the carcass
    US-6093267-AJuly 25, 2000SedeproTire having circumferential cables for anchoring the carcass and process of preparing such cables
    US-6425429-B1July 30, 2002SedeproTire having circumferential cables for anchoring the carcass and process of preparing such cables
    US-6706331-B2March 16, 2004Bhp Steel (Jla) Pty LtdCold-formable metal-coated strip
    US-6808569-B2October 26, 2004SedeproCable for anchoring a tire carcass