EP1963543A1 - Stahldrahtseil zur verwendung in einem antriebssystem - Google Patents

Stahldrahtseil zur verwendung in einem antriebssystem

Info

Publication number
EP1963543A1
EP1963543A1 EP06829620A EP06829620A EP1963543A1 EP 1963543 A1 EP1963543 A1 EP 1963543A1 EP 06829620 A EP06829620 A EP 06829620A EP 06829620 A EP06829620 A EP 06829620A EP 1963543 A1 EP1963543 A1 EP 1963543A1
Authority
EP
European Patent Office
Prior art keywords
zinc
wire rope
magnesium oxide
metallic wire
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06829620A
Other languages
English (en)
French (fr)
Other versions
EP1963543B1 (de
Inventor
Johan Vanbrabant
Wouter Vandenbranden
Dominique Lefebvre
Paul Bruyneel
Stijn Vancompernolle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bekaert NV SA
Original Assignee
Bekaert NV SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bekaert NV SA filed Critical Bekaert NV SA
Priority to PL06829620T priority Critical patent/PL1963543T3/pl
Priority to EP06829620A priority patent/EP1963543B1/de
Priority to PL11169291T priority patent/PL2365108T3/pl
Priority to SI200631177T priority patent/SI1963543T1/sl
Priority to EP11169291.9A priority patent/EP2365108B1/de
Publication of EP1963543A1 publication Critical patent/EP1963543A1/de
Application granted granted Critical
Publication of EP1963543B1 publication Critical patent/EP1963543B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/26—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/06—Zinc or cadmium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/321—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer with at least one metal alloy layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • C23C28/3225—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only with at least one zinc-based layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/345—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with at least one oxide layer
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/347—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with layers adapted for cutting tools or wear applications
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
    • D07B1/0606—Reinforcing cords for rubber or plastic articles
    • D07B1/0666—Reinforcing cords for rubber or plastic articles the wires being characterised by an anti-corrosive or adhesion promoting coating
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/201—Wires or filaments characterised by a coating
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/201—Wires or filaments characterised by a coating
    • D07B2201/2011—Wires or filaments characterised by a coating comprising metals
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2201/00—Ropes or cables
    • D07B2201/20—Rope or cable components
    • D07B2201/2001—Wires or filaments
    • D07B2201/201—Wires or filaments characterised by a coating
    • D07B2201/2013—Wires or filaments characterised by a coating comprising multiple layers
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2205/00—Rope or cable materials
    • D07B2205/30—Inorganic materials
    • D07B2205/3021—Metals
    • D07B2205/3071—Zinc (Zn)

Definitions

  • the invention relates to the field of steel wire ropes more in particular to steel wire ropes that have to withstand corrosive circumstances during operation.
  • steel wire ropes can be found in many drive systems such as a window elevator in a car door, or a drive system for a sliding door, or a canvas roof drive, or a garage door opener drive system, or a hoisting rope to name just a few.
  • the invention offers a more corrosion resistant kind of rope while maintaining good fatigue properties and improved friction properties. Background of the invention.
  • Steel wire ropes are in many cases the preferred means to convey force and displacement (i.e. work) over a distance between meters and kilometres at a low cost.
  • the ropes can be made very flexible - so that the rope can accommodate small bending pulleys - by using fine wire diameters.
  • the strength of the rope can be increased thus enabling the transmittal of higher forces.
  • the modulus of elasticity is close to that of steel and the elongation of the cord can be minimised thus eliminating slack out of the drive system.
  • the ropes can be designed to withstand the repeated bending, torsion or stretch movements that occur in such drive systems.
  • steel wire ropes are reliable because the fatigue limit can be accurately predicted by means of tests that simulate the real live usage of the ropes.
  • the steel wire ropes show a favourable friction coefficient with respect to wear pieces, a property that in many cases allows the replacement of bending pulleys with fixed rope guides with considerable cost savings in the drive system as a consequence.
  • most steels tend to rust when subjected to conditions that enhance corrosion (such as outdoor usage, but also in the inside of an elevator shaft, or the inside of an automobile door). Corrosion is in that respect detrimental that it can reduce the predicted fatigue level dramatically leading to premature, fatal fractures.
  • Such a mechanism is known in the field as 'corrosion fatigue' i.e. the fatigue phenomena that occur when dynamic loading of the cord is performed in a corrosive environment.
  • a few standard solutions are known to the skilled person to reduce this corrosion:
  • the corrosion progress is regularly (e.g. every 24 hours) visually monitored and graded into a number of classes ('dots of light brown rust', 'spots of light brown rust', 'dots of dark brown rust', 'spots of dark brown rust' and '5% surface coverage with dark brown rust').
  • 'dots of light brown rust', 'spots of light brown rust', 'dots of dark brown rust', 'spots of dark brown rust' and '5% surface coverage with dark brown rust' the number of hours salt spray withstood in this test is until 'spots of dark brown rust' appear on the sample.
  • wire ropes must withstand a minimum of 72 hours of salt spray before being accepted in the automobile industry.
  • the lubricant is chosen in order to optimise the fatigue life. Estimates for the fatigue life can be obtained through dedicated test procedures that simulate the real life usage of the rope in the drive system. Hence, there are a number of proprietary test benches available to determine this fatigue life. A publicly available test is the MIL-W-
  • the inventors have searched for a particularly simple corrosion inhibitor adapted to the specific use of wire ropes in drive systems that is effective, cheap, environmentally friendly and easy to apply: another object of their invention.
  • a metallic wire rope is provided that is intended for use in a drive system.
  • Such wire ropes have a diameter smaller than 5 mm, although sizes below 3 mm are more preferred while nowadays sizes of 2 mm and 1.5 mm are most popular.
  • the inventors believe that the trend towards smaller diameter wire ropes will continue and foresee that 1 mm diameter ropes will become possible in the foreseeable future.
  • the metallic wire rope is assembled out of zinc or zinc alloy coated steel wires.
  • the steel used to produce these wires is - as high strength is needed - a high carbon steel.
  • Such steels have compositions according following lines: a carbon content between 0.35 and 1.15 wt.
  • % preferably between 0.60 and 1.00 wt.% carbon, a manganese content between 0.30 and 0.70 wt. %, a silicon content between 0.10 and 0.60 wt.%, a maximum sulphur content of 0.05 wt. %, a maximum phosphorus content of 0.05 wt.%.
  • Micro-alloying with particular elements such a chromium, nickel, vanadium, boron, cobalt, copper, molybdenum are not excluded for amounts ranging from 0.01 to 0.08 wt.% as this alloying may help to reach higher strength levels.
  • Particularly popular coatings for these steel wires are: - a coating of technically pure zinc whereby the unavoidable impurities are also included
  • zinc-iron alloys such as those comprising 0.3 to 1.5 wt.% of Fe or those comprising 15 to 25 wt. of Fe, the remainder being zinc.
  • the iron can originate from the steel substrate itself.
  • Zinc-nickel alloys such as those comprising 20 to 30 wt. % nickel, the remainder being zinc.
  • the coating of the wire is usually done on an intermediate diameter steel wire that is subsequently drawn to finer diameters through a series of dies. During drawing the tensile strength of the wire gradually increases, an increase that is outspoken for steel wires with a high carbon content such as the ones envisaged in this application.
  • the steel wires have tensile strengths in excess of 1750 N/mm 2 , typically above 2500 N/mm 2 , or more preferred in excess of 2750 N/mm 2 , or even in excess of 3000 N/mm 2 .
  • Such higher tensile strengths are necessary to be able to further reduce the wire rope diameter.
  • the diameters of the wires for this kind of rope are rarely above 0.25 mm and by preference below 0.22, even more preferred below 0.15 mm.
  • fine diameter wires results in a wire rope that is better fatigue resistant than a rope with less wires that have a larger diameter.
  • the wires are assembled into strands that may or may not be further assembled into wire ropes.
  • Typical configurations that are common in the field are 7x7, 7x19, 19+8x7, 19W+8x7, 7x8, 8x7, 8x8 19+9x7, 1x3+5x7 to name just a few.
  • 7x8 designates a rope consisting of 7 strands that each consist of 8 wires.
  • a strand consists of a core wire around which 7 outer wires are helically twisted with a certain pitch. Six of said strands are twisted around a central core strand, again with a defined pitch.
  • the diameters of the outer wires are by preference chosen such that they easily fit around the core wire.
  • the diameter of the core strand can be so chosen as to be adapted to the diameter of the outer strands.
  • the strands can be produced layer by layer by twisting wires around intermediate strands leading to an exemplary configuration of a core wire surrounded by six wires again surrounded by twelve wires giving a 1+6+12 configuration that is shortened to a 19 wire strand.
  • a special case is where the wire diameters are so chosen as to fit nicely together as in a Warrington configuration (as in the core of the 19W+8x7 construction). All 19 wires are then assembled together with the same pitch.
  • strands are compacted prior to cabling or even complete cables are compacted.
  • a fibre replaces the core wire. The inventive idea of this application is equally well applicable to all these variations.
  • the amount of coating on the wire is expressed in grams of coating per square meter of wire surface. As the coating does not add to the strength of the cord, it must be as thin as possible without jeopardising the corrosion resistance.
  • Conventional coating amounts are - the number between brackets refers to the average thickness for a corresponding zinc coating having a density of 7.14 kg/dm 3 - minimum 30 g/m 2 (4.2 ⁇ m). However, lower amounts such as lower than 25 g/m 2
  • the inventors have found that the reduced corrosion resistance can be compensated by the use of corrosion inhibitor applied by means of a liquid carrier.
  • a very simple compound namely magnesium oxide (MgO) was best fitted to this end.
  • the magnesium oxide (MgO) must be finely dispersed in the carrier.
  • the carrier only serves to distribute the magnesium oxide evenly over the surface of the wire: the particles must come in close contact with the coating of the wire.
  • the liquid carrier can remain in place or may evaporate: it has been found that the positive, corrosive inhibitive effects remain.
  • the magnesium oxide makes it possible to use thinner zinc coatings, entailing the advantages of higher strength and better fatigue, while maintaining and even improving the corrosion resistance. Mutatis mutandis the magnesium oxide gives more certainty against corrosion when used on wires with the currently used zinc coatings.
  • Magnesium oxide (MgO) is a very common product that can be obtained through a number of process routes.
  • a first route is through heating of magnesite (magnesium carbonate, a natural mineral deposit) in the presence of oxygen.
  • a second route uses brine containing MgCI 2 that is first converted to Mg(OH) 2 for purification through wet precipitation followed by calcination to drive out the water. The latter route is more preferred.
  • the resultant magnesium oxide (MgO) can be classified in different grades:
  • the 'light burned' grade is most preferred, while the 'hard burned' grade is less preferred.
  • the 'dead burned' grade is hard to disperse and hence least preferred.
  • the 'fused magnesium oxide' is too inert to be useful.
  • an aliphatic mineral oil is most preferred. Aliphatic mineral oils are normally used to enhance the fatigue life of the wire rope by reducing the friction between the wires as they are bent over a pulley or a wear piece. As they are to be applied on the wire rope anyhow, they can conveniently be used as a carrier for the magnesium oxide dispersion.
  • Other possible liquid carriers are paraphenes and more in particular isoparaphenes that are known to easily evaporate.
  • MgO magnesium oxide
  • MgO a cathodic inhibitor, of which the effectiveness increases with the amount of magnesium oxide present.
  • the magnesium oxide is finely spread over the wire surface in order to obtain a uniform spread of the magnesium oxide floes. This is best obtained by using a finely ground magnesium oxide with an average particle size of between 1 and 100 micrometer, most preferred being 5 to 75 micrometer.
  • the magnesium oxide must be in physical contact with the zinc or zinc coating layer, otherwise the corrosion protection is less effective or non- existent.
  • the inventors added abrasive particles of about the same size (5 to 50 micrometer average particle size) as the magnesium oxide particles into the liquid carrier. The idea was that by adding this abrasive, the surface of the zinc coating is ground thus embedding better the magnesium oxide particles.
  • Such guiding pieces are usually made of hard polymers such as polyoxymethylene (POM) or polyamide (Nylon 6).
  • POM polyoxymethylene
  • ylon 6 polyamide
  • abrasive particles not only activate the zinc coating, but also polish the surface of the wire making it smoother.
  • silicon carbide SiC
  • Other abrasives quartz, cubic boron nitride, diamond and many others
  • Remarkable is also that these abrasive particles do not have a negative influence on the fatigue behaviour of the steel wire rope. It has been found that between 0.1 and 10, preferably between 0.1 and 2 grams of SiC per kilogram of wire rope more than suffices to obtain the positive effects.
  • a metallic wire product is defined that comprises at least one zinc or zinc alloy coated steel wire.
  • this steel wire Special about this steel wire is that a corrosion inhibitor is embedded in the zinc or zinc alloy coating as a finely dispersed solid.
  • this corrosion inhibitor is present in the outer surface of the coating.
  • the solid corrosion inhibitor is embossed, pressed into the outer surface of said coating.
  • this corrosion inhibitor is magnesium oxide (MgO) .
  • a method is disclosed to protect a metallic wire product.
  • the method starts from a steel wire of intermediate diameter provided with a zinc or zinc alloy coating.
  • the steel and coating compositions are in line with the compositions described in the first aspect of the invention.
  • On a wire drawing bench preferably a wet wire drawing bench, the wire is sequentially drawn through progressively smaller dies, a technique common in the art.
  • the wire drags a finally dispersed corrosion inhibitor into one of the drawing dies.
  • the corrosion inhibitor gets impressed into to the outer surface of the coating by the compressive action of the die on the wire.
  • the corrosion inhibitor can be applied on the wire at one die e.g. the entrance (i.e. the largest) die or at the exit (i.e.
  • the inhibitor can be fed to the wire at two or more dies, or at every die of the whole die series.
  • the corrosion inhibitor can be provided in a powder form.
  • the corrosion inhibitor can be mixed into powder soaps that are common in the art of steel wire dry drawing as solid lubricants.
  • Such a powder mixture can be fed together with the wire into the die by guiding the wire through a soap box at the entrance of the die.
  • the corrosion inhibitor can be mixed into a liquid carrier that is dragged by the wire into the die entrance.
  • the corrosion inhibitor comes in intimate, electrical contact with the zinc or zinc alloy coating.
  • the corrosion inhibitor therefore should not be isolated from the zinc or zinc alloy coating by drawing soap residues.
  • the corrosion inhibitor is magnesium oxide (MgO).
  • the magnesium oxide powder has been finely ground so as to pass a 74 micrometer mesh.
  • the cord has a linear mass of 9.78 g/m and a wire surface of 33.56 m 2 /km of cord. If not indicated to the contrary, the rope wires have obtained a hot dip galvanised, technically pure zinc coating of about 100 g per kg of coated steel wire rope (i.e. 28 g/m 2 or an average thickness of 3.9 ⁇ m).
  • the radius of curvature of the POM guiding piece was 15 mm while the rope covers 180° of the piece.
  • the wear is evaluated after 5 000 back and forth cycles (i.e. 10 000 passages) in which the same 430 mm of rope glides over the guiding piece. No lubricant is added prior to the testing.
  • the inventors want to stress that the invention is equally well applicable to all kinds of configurations of steel wire ropes and that their use is not limited to window elevator systems but to all kinds of drive systems (sliding doors, sliding rooftops, garage doors, curtain drives, brake cables, clutch cable, door latch system, a non-exhaustive list).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Ropes Or Cables (AREA)
  • Lubricants (AREA)
EP06829620A 2005-12-21 2006-12-11 Stahldrahtseil zur verwendung in einem antriebssystem Active EP1963543B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL06829620T PL1963543T3 (pl) 2005-12-21 2006-12-11 Lina stalowa do stosowania w układzie napędowym
EP06829620A EP1963543B1 (de) 2005-12-21 2006-12-11 Stahldrahtseil zur verwendung in einem antriebssystem
PL11169291T PL2365108T3 (pl) 2005-12-21 2006-12-11 Lina z drutu stalowego do użycia w systemie napędowym
SI200631177T SI1963543T1 (sl) 2005-12-21 2006-12-11 Jeklena vrv za uporabo pri voznem sistemu
EP11169291.9A EP2365108B1 (de) 2005-12-21 2006-12-11 Stahldrahtseil zur Verwendung in einem Antriebssystem

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05112555 2005-12-21
PCT/EP2006/012069 WO2007071340A1 (en) 2005-12-21 2006-12-11 A steel wire rope for use in a drive system
EP06829620A EP1963543B1 (de) 2005-12-21 2006-12-11 Stahldrahtseil zur verwendung in einem antriebssystem

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP11169291.9A Division EP2365108B1 (de) 2005-12-21 2006-12-11 Stahldrahtseil zur Verwendung in einem Antriebssystem
EP11169291.9 Division-Into 2011-06-09

Publications (2)

Publication Number Publication Date
EP1963543A1 true EP1963543A1 (de) 2008-09-03
EP1963543B1 EP1963543B1 (de) 2011-09-07

Family

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EP06829620A Active EP1963543B1 (de) 2005-12-21 2006-12-11 Stahldrahtseil zur verwendung in einem antriebssystem
EP11169291.9A Active EP2365108B1 (de) 2005-12-21 2006-12-11 Stahldrahtseil zur Verwendung in einem Antriebssystem

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EP (2) EP1963543B1 (de)
KR (1) KR101404645B1 (de)
CN (2) CN102162077B (de)
AT (1) ATE523611T1 (de)
ES (2) ES2674405T3 (de)
PL (2) PL2365108T3 (de)
PT (2) PT2365108T (de)
SI (2) SI1963543T1 (de)
TR (1) TR201809596T4 (de)
WO (1) WO2007071340A1 (de)

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EP2743225A2 (de) 2011-03-11 2014-06-18 Kone Corporation Aufzugssystem

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CN102975422B (zh) * 2012-12-12 2015-04-22 华勤钢丝绳有限公司 一种高强度钢丝、其制备方法以及输送带用超高强度钢丝绳
CN103541250B (zh) * 2013-10-14 2016-03-02 无锡通用钢绳有限公司 一种钢丝绳
CN107815784A (zh) * 2017-10-25 2018-03-20 江阴市蒋氏汽摩部件有限公司 一种耐磨高强度拉索及其制备方法
FI20176129A1 (fi) 2017-12-15 2019-06-16 Kone Corp Pastavoitelu
US11066783B2 (en) * 2018-09-17 2021-07-20 Leggett & Platt Canada Co. Corrosion resistant cable

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Also Published As

Publication number Publication date
CN101346490A (zh) 2009-01-14
SI2365108T1 (sl) 2019-02-28
EP2365108A2 (de) 2011-09-14
CN102162077A (zh) 2011-08-24
ATE523611T1 (de) 2011-09-15
EP2365108A3 (de) 2011-09-21
PT1963543E (pt) 2011-12-15
EP2365108B1 (de) 2018-05-23
SI1963543T1 (sl) 2012-06-29
CN102162077B (zh) 2013-03-13
CN101346490B (zh) 2012-05-23
ES2674405T3 (es) 2018-06-29
KR101404645B1 (ko) 2014-06-09
ES2371777T3 (es) 2012-01-10
TR201809596T4 (tr) 2018-07-23
PL1963543T3 (pl) 2012-01-31
PL2365108T3 (pl) 2018-10-31
KR20080077984A (ko) 2008-08-26
WO2007071340A1 (en) 2007-06-28
PT2365108T (pt) 2018-07-05
EP1963543B1 (de) 2011-09-07

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