WO2014139746A1 - A method to protect the cut end of an elongated metal element - Google Patents

A method to protect the cut end of an elongated metal element Download PDF

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Publication number
WO2014139746A1
WO2014139746A1 PCT/EP2014/052718 EP2014052718W WO2014139746A1 WO 2014139746 A1 WO2014139746 A1 WO 2014139746A1 EP 2014052718 W EP2014052718 W EP 2014052718W WO 2014139746 A1 WO2014139746 A1 WO 2014139746A1
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WO
WIPO (PCT)
Prior art keywords
cut end
metal element
elongated metal
pressure
heat
Prior art date
Application number
PCT/EP2014/052718
Other languages
French (fr)
Inventor
Santiago Juan GARCIA ESPALLARGAS
Hugo Lievens
Peter Persoone
Sanaa SARGHINI
Jesus Manuel DE VEGA VEGA
Original Assignee
Materials Innovation Institute - M2I
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 Materials Innovation Institute - M2I filed Critical Materials Innovation Institute - M2I
Publication of WO2014139746A1 publication Critical patent/WO2014139746A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/16—Auto-repairing or self-sealing arrangements or agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/24—Apparatus or accessories not otherwise provided for
    • B29C73/30—Apparatus or accessories not otherwise provided for for local pressing or local heating

Definitions

  • the invention relates to a method to provide the cut end of an elongated metal element such as a metal wire with corrosion protection.
  • the invention further relates to a device to protect the cut end of an elongated metal element.
  • Corrosion is a well-known problem of metals. As the economic impact of corrosion is extremely high, the protection of metals from corrosion has been an active area of materials sciences for many years.
  • One way to protect objects against corrosion is providing the objects with a coating, such as a metal or metal alloy coating and/or an organic coating.
  • a coating such as a metal or metal alloy coating and/or an organic coating.
  • metal or metal alloy coatings comprise zinc or tin coatings or coatings comprising alloys of zinc and/or tin.
  • organic coatings comprise epoxy coatings, polyurethane coatings, polyester coatings, paints, ...
  • Self-healing materials are known in the art. These materials are promising to deal with problems associated with coating failure as they are able to partially or completely heal damage inflicted on a substrate, for example damages such as scratches or cracks.
  • Intrinsic self-healing materials require a modest external stimulus trigger, such as heat or light, to trigger the healing mechanism. Extrinsic self-healing materials do not require any additional external trigger.
  • the healing process of extrinsic self-healing materials is based on healing agents such as micro- or nanocapsules embedded in the material. When damage occurs, healing agent is released in the crack to fill the gap and to start a chemical reaction to regenerate the protective layer.
  • a method to provide the cut end of an elongated metal element such as a metal wire with corrosion protection comprises the steps of
  • the section adjacent to said cut end has a length L.
  • the heat and pressure are applied in such a way that the self-healing coating of said section is triggered and is flowing out to cover said cut end.
  • the cut end is completely covered by the triggered self-healing coating.
  • the elongated metal element is cut at a predetermined length thereby leaving the cut end, more particularly the edge or edges of the cut end unprotected.
  • the heat and pressure is applied so that the self-healing coating is triggered and is flowing out to cover the uncoated cut end.
  • the method comprises the steps of
  • the heat can be applied by any means known in the art such as an
  • the means to heat can for example be integrated in a device to protect the cut end or in a cutting device for example in the blades or jaws of pincers.
  • adjacent to the cut end to which heat and pressure is applied should comprise enough material. This can for example be influenced by choosing the length L of the section to which heat and pressure is applied, by choosing the thickness of the coating, or by choosing the length of the section to which heat and pressure is applied and the thickness of the self- healing coating.
  • the length L of the section to which heat and pressure is applied is higher than the diameter of the elongated metal element.
  • the length L of the section to which heat and pressure is applied can be influenced by providing the cutting tool or the device to protect the cut end with extensions.
  • the heat applied to the section adjacent to the cut end is
  • the temperature at a distance L from the cut end is equal to a temperature Ti and the temperature at the cut end is T 2 , with T 2 > Ti .
  • the pressure is for example applied by a device to protect the cut end or by a cutting device for example by the blades or jaws of pincers.
  • the pressure applied to the section adjacent to the cut end is decreasing from a distance L from the cut end towards the end.
  • the pressure applied to the section adjacent to the cut end is equal to Pi at a distance L from the cut end and is decreasing towards a pressure equal to P 2 at the cut end.
  • the pressure P 2 is equal to zero.
  • the thickness of the self-healing coating in the section adjacent to the cut end is preferably higher than 1 % of the diameter or the equivalent diameter of the elongated metal element, more preferably, the thickness of the self-healing coating is higher than 2 % of the diameter or the
  • the equivalent diameter of an elongated metal element is defined as the diameter of an imaginary elongated metal element having a circular radial cross-section, which cross-section has a surface identical to the surface area of the particular elongated metal element.
  • the elongated metal element may for example comprise a metal wire, a metal cord, a metal rope, a metal tape or a metal ribbon.
  • structures comprising at least one elongated metal elements can be considered.
  • examples of such structures comprise woven, non-woven, braided, knitted or welded structures.
  • the elongated metal element may have any cross-section such as a circular, an oval or a rectangular cross-section.
  • Any metal or metal alloy can be used to provide the metal elements of the composite article according to the invention.
  • the metals or metal alloys are selected from iron, titanium, aluminium, copper and alloys thereof.
  • Preferred alloys comprise high or low carbon steel or stainless steel.
  • the elongated metal element can be coated with one or more metal or metal alloy coating before the self-healing coating is applied.
  • Preferred metal or metal alloy coatings comprise zinc and zinc alloy coatings such as zinc-copper, zinc-aluminum, zinc-manganese, zinc- cobalt alloy, zinc-nickel alloy, zinc iron alloy or zinc-tin alloy coatings.
  • a preferred zinc-aluminum coating comprises a zinc coating comprising 2 to 10 % Al and possibly 0.1 to 0.4 % or a rare earth element such as La and/or Ce.
  • the elongated metal elements comprises steel wires having a tensile strength higher than 1000 N/m 2 , higher than 1500 N/m 2 or higher than 2000 N/m 2 .
  • the elongated metal element is at least partially coated with a self-healing coating.
  • the amount of self-healing coating at the cut end or close to the cut end should be high enough so that there is enough material to cover the cut end.
  • the elongated metal element is coated partially.
  • the section adjacent to a cut end is coated with self-healing coating.
  • the elongated metal element is coated over its full length with a coating comprising a self-healing material.
  • the elongated metal element can be provided with a coating having a higher thickness at the section adjacent to a cut end.
  • the self-healing coating comprises an intrinsic self-healing material. More preferably the intrinsic self-healing material is based on reversible cross-links using heat as an external trigger.
  • This category comprises hydrogen bonds, ionomers, coordination bonds and reversible covalent bonds.
  • a device to protect the cut end of an elongated metal element is provided.
  • the device comprises a first jaw and a second jaw, hinged to one another.
  • the first jaw and the second jaw are provided with means to heat a section of said elongated metal element over a length L.
  • the first jaw and the second jaw are adapted to apply pressure on said elongated metal element over a length L.
  • the length L of the section to which heat and pressure is applied is preferably higher than half the diameter of the elongated metal element, for example higher than the diameter of the elongated metal element.
  • the first and the second jaw are preferably provided with heating means, such as inductive or resistive heating means.
  • Preferred devices comprise pincers or pliers.
  • first and/or the second jaw are provided with extensions.
  • FIG. 1 shows a schematic illustration of an embodiment of a device to protect the cut end of an elongated metal element according to the present invention
  • FIG. 2 shows the heat and pressure that is applied to the section adjacent to a cut end in function of the distance from the cut end in case the cutting step and the application of heat and pressure are performed in two consecutive steps;
  • FIG. 3 shows the heat and pressure that is applied to the section adjacent to a cut end in function of the distance from the cut end in case the cutting step and the application of heat and pressure are performed in one step.
  • Figure 1 is a schematic illustration of a device 100 to protect the cut end of an elongated metal element 102 against corrosion.
  • the elongated metal element 102 comprises for example a metal wire or a metal cord.
  • the elongated metal element is coated with a self-healing coating 103.
  • the device 100 comprises a first jaw 106 and a second jaw 108 hinged at point 1 10.
  • the first jaw 106 and the second jaw 108 are provided with means 109 to heat the elongated metal element 102 over a length L.
  • first jaw 106 and the second jaw 108 are adapted to apply pressure on said elongated metal element 102 over a length L.
  • Figure 2 is a schematic illustration of the heat and pressure that is applied to the section adjacent to the cut end in function of the distance from the cut end in case the cutting step and the application of heat and pressure are performed in two consecutive steps.
  • the vertical axis at the left side shows the temperature that is applied while the vertical axis at the right side shows the pressure that is applied.
  • the horizontal axis shows the distance from the cut end.
  • the temperature applied in function of the distance from the cut end is shown by curve 204. At a distance L from the cut end the temperature applied is equal to a temperature Ti and at the cut end the temperature applied is equal to T 2 , with T 2 > Ti .
  • Figure 3 is a schematic illustration of the heat and pressure that is applied to the section adjacent to a cut end in function of the distance from the cut end in case the cutting step and the application of heat and pressure are performed in one step.
  • Curve 304 is similar to curve 204 of Figure 2.
  • the pressure applied in function of the distance from the cut end is shown by curve 302.
  • the pressure applied at a distance L from the cut end is equal to Pi
  • the pressure applied is decreasing towards the cut end to a pressure P x and is increasing again to a pressure P2 at the cut end.
  • P2 can be higher than Pi .
  • the pressure P2 applied locally at the cut end is due to the cutting operation.

Abstract

The invention relates to a method to provide a cut end of an elongated metal element with corrosion protection, said method comprising the steps off - providing an elongated metal element, said elongated metal element being at least partially coated with a self-healing coating; - cutting said elongated metal element, thereby providing said elongated metal element with a cut end; - applying heat and pressure to a section of said coated elongated metal element adjacent to said cut end, said section having a length L, whereby said heat and pressure is applied in such a way that the self-healing coating of said section is triggered and is flowing out to cover said cut end. The invention further relates to a device for protecting the cut end of an elongated metal element.

Description

A method to protect the cut end of an elongated metal element
Description
Technical Field
[0001 ] The invention relates to a method to provide the cut end of an elongated metal element such as a metal wire with corrosion protection.
The invention further relates to a device to protect the cut end of an elongated metal element.
Background Art
[0002] Corrosion is a well-known problem of metals. As the economic impact of corrosion is extremely high, the protection of metals from corrosion has been an active area of materials sciences for many years.
[0003] One way to protect objects against corrosion is providing the objects with a coating, such as a metal or metal alloy coating and/or an organic coating. Examples of metal or metal alloy coatings comprise zinc or tin coatings or coatings comprising alloys of zinc and/or tin.
Examples of organic coatings comprise epoxy coatings, polyurethane coatings, polyester coatings, paints, ...
[0004] Even when an object, such as an elongated metal element for example a wire is protected with a coating, at some length the object is cut leaving the cut end unprotected.
In order to protect the uncoated cut end from corrosion expensive additional treatments such as applying a corrosion resistant coating at the cut end or providing the cut end with caps are required.
[0005] Self-healing materials are known in the art. These materials are promising to deal with problems associated with coating failure as they are able to partially or completely heal damage inflicted on a substrate, for example damages such as scratches or cracks.
Depending on the required trigger and the nature of the self-healing process, two main groups of self-healing materials can be identified : intrinsic self-healing materials and extrinsic self-healing materials.
Intrinsic self-healing materials require a modest external stimulus trigger, such as heat or light, to trigger the healing mechanism. Extrinsic self-healing materials do not require any additional external trigger. The healing process of extrinsic self-healing materials is based on healing agents such as micro- or nanocapsules embedded in the material. When damage occurs, healing agent is released in the crack to fill the gap and to start a chemical reaction to regenerate the protective layer.
Disclosure of Invention
[0006] It is an object of the present invention to provide a method to protect the cut end of an elongated metal element from corrosion.
It is another object of the present invention to provide a device to protect the cut end of an elongated metal element from corrosion.
[0007] According to a first aspect of the present invention a method to provide the cut end of an elongated metal element such as a metal wire with corrosion protection is provided. The method comprises the steps of
providing an elongated metal element, said elongated metal element being at least partially coated with a self-healing coating;
cutting said elongated metal element at a predetermined length, thereby providing said elongated metal element with a cut end;
applying heat and pressure to a section of said coated elongated metal element adjacent to said cut end. The section adjacent to said cut end has a length L. The heat and pressure are applied in such a way that the self-healing coating of said section is triggered and is flowing out to cover said cut end.
Preferably, the cut end is completely covered by the triggered self-healing coating.
[0008] The cutting step and the application of heat and pressure can be
performed in two consecutive steps. Alternatively, the cutting step and the application of heat and pressure are performed in one step.
[0009] In case the cutting step and the application of heat and pressure are
performed in two consecutive steps, the elongated metal element is cut at a predetermined length thereby leaving the cut end, more particularly the edge or edges of the cut end unprotected. In a subsequent step the heat and pressure is applied so that the self-healing coating is triggered and is flowing out to cover the uncoated cut end.
[0010] In case the cutting step and the application of heat and pressure are
performed in one step the method comprises the steps of
providing an elongated metal element, said elongated metal element being at least partially coated with a self-healing coating;
cutting said elongated metal element thereby providing a cut end and while cutting applying heat and pressure to a section adjacent to said cut end in such a way that the self-healing coating of said section is triggered and that the self-healing coating of said section is flowing out to cover said cut end.
[001 1 ] It is essential for the invention that the section of the coated elongated metal element adjacent to the cut end is heated to a temperature that is triggering the self-healing coating to heal. The required temperature is thus dependent on the self-healing coating.
Furthermore, it is essential that pressure is applied to the section of the coated elongated metal element in such a way that the coating of this section is forced to flow out thereby covering the cut end.
[0012] The heat can be applied by any means known in the art such as an
inductive or resistive heating means. The means to heat can for example be integrated in a device to protect the cut end or in a cutting device for example in the blades or jaws of pincers.
[0013] In order to guarantee a minimum coverage of the cut end, the section
adjacent to the cut end to which heat and pressure is applied should comprise enough material. This can for example be influenced by choosing the length L of the section to which heat and pressure is applied, by choosing the thickness of the coating, or by choosing the length of the section to which heat and pressure is applied and the thickness of the self- healing coating.
[0014] The length L of the section to which heat and pressure is applied is
preferably higher than half the diameter of the elongated metal element. More preferably, the length L of the section to which heat and pressure is applied is higher than the diameter of the elongated metal element. The length L of the section to which heat and pressure is applied can be influenced by providing the cutting tool or the device to protect the cut end with extensions.
[0015] Preferably, the heat applied to the section adjacent to the cut end is
increasing from a distance L from the cut end to the cut end. Preferably, the temperature at a distance L from the cut end is equal to a temperature Ti and the temperature at the cut end is T2, with T2 > Ti .
[0016] The pressure is for example applied by a device to protect the cut end or by a cutting device for example by the blades or jaws of pincers.
[0017] Preferably, the pressure applied to the section adjacent to the cut end is decreasing from a distance L from the cut end towards the end. The pressure applied to the section adjacent to the cut end is equal to Pi at a distance L from the cut end and is decreasing towards a pressure equal to P2 at the cut end. In some embodiments the pressure P2 is equal to zero.
[0018] In case the cutting step and the application of heat and pressure are
performed in one step, locally high pressure is applied at the place where the cut end is created due to the cutting. In this case the pressure applied to the section adjacent to the cut end is equal to Pi at a distance L from the cut end and is decreasing towards the cut end to a pressure Px and is increasing again to a pressure P2 at the cut end. P2 can be higher than Pi . [0019] The thickness of the self-healing coating in the section adjacent to the cut end is preferably higher than 1 % of the diameter or the equivalent diameter of the elongated metal element, more preferably, the thickness of the self-healing coating is higher than 2 % of the diameter or the
equivalent diameter of the elongated metal element, for example 3 % or 5 % of the diameter or the equivalent diameter of the elongated metal element. The equivalent diameter of an elongated metal element is defined as the diameter of an imaginary elongated metal element having a circular radial cross-section, which cross-section has a surface identical to the surface area of the particular elongated metal element.
[0020] ELONGATED METAL ELEMENT
The elongated metal element may for example comprise a metal wire, a metal cord, a metal rope, a metal tape or a metal ribbon.
Also structures comprising at least one elongated metal elements can be considered. Examples of such structures comprise woven, non-woven, braided, knitted or welded structures.
The elongated metal element may have any cross-section such as a circular, an oval or a rectangular cross-section.
[0021 ] Any metal or metal alloy can be used to provide the metal elements of the composite article according to the invention.
Preferably, the metals or metal alloys are selected from iron, titanium, aluminium, copper and alloys thereof.
Preferred alloys comprise high or low carbon steel or stainless steel.
[0022] The elongated metal element can be coated with one or more metal or metal alloy coating before the self-healing coating is applied.
Preferred metal or metal alloy coatings comprise zinc and zinc alloy coatings such as zinc-copper, zinc-aluminum, zinc-manganese, zinc- cobalt alloy, zinc-nickel alloy, zinc iron alloy or zinc-tin alloy coatings. A preferred zinc-aluminum coating comprises a zinc coating comprising 2 to 10 % Al and possibly 0.1 to 0.4 % or a rare earth element such as La and/or Ce. [0023] In preferred embodiments the elongated metal elements comprises steel wires having a tensile strength higher than 1000 N/m2, higher than 1500 N/m2 or higher than 2000 N/m2.
[0024] SELF HEALING COATING
The elongated metal element is at least partially coated with a self-healing coating.
It is clear for a person skilled in the art that the amount of self-healing coating at the cut end or close to the cut end should be high enough so that there is enough material to cover the cut end.
In a first embodiment the elongated metal element is coated partially.
Preferably, the section adjacent to a cut end is coated with self-healing coating.
In an alternative embodiment the elongated metal element is coated over its full length with a coating comprising a self-healing material.
It can be preferred to provide the elongated metal element with a coating having a higher thickness at the section adjacent to a cut end.
[0025] As self-healing coating any material that is self-healing can be considered.
Preferably, the self-healing coating comprises an intrinsic self-healing material. More preferably the intrinsic self-healing material is based on reversible cross-links using heat as an external trigger.
This category comprises hydrogen bonds, ionomers, coordination bonds and reversible covalent bonds.
[0026] According to a second aspect of the present invention a device to protect the cut end of an elongated metal element is provided.
The device comprises a first jaw and a second jaw, hinged to one another. The first jaw and the second jaw are provided with means to heat a section of said elongated metal element over a length L. The first jaw and the second jaw are adapted to apply pressure on said elongated metal element over a length L. [0027] The length L of the section to which heat and pressure is applied is preferably higher than half the diameter of the elongated metal element, for example higher than the diameter of the elongated metal element.
[0028] The first and the second jaw are preferably provided with heating means, such as inductive or resistive heating means.
[0029] Preferred devices comprise pincers or pliers.
[0030] In preferred embodiments the first and/or the second jaw are provided with extensions.
Brief Description of Figures in the Drawings
[0031 ] The invention will now be described into more detail with reference to the accompanying drawings whereby
- Figure 1 shows a schematic illustration of an embodiment of a device to protect the cut end of an elongated metal element according to the present invention;
- Figure 2 shows the heat and pressure that is applied to the section adjacent to a cut end in function of the distance from the cut end in case the cutting step and the application of heat and pressure are performed in two consecutive steps;
- Figure 3 shows the heat and pressure that is applied to the section adjacent to a cut end in function of the distance from the cut end in case the cutting step and the application of heat and pressure are performed in one step.
Mode(s) for Carrying Out the Invention
[0032] The present invention will be described with respect to particular
embodiments and with reference to certain drawings but the invention is not limited thereto but only by the claims. The drawings described are only schematic and are non-limiting. In the drawings, the size of some of the elements may be exaggerated and not drawn on scale for illustrative purposes. The dimensions and the relative dimensions do not correspond to actual reductions to practice of the invention.
[0033] Figure 1 is a schematic illustration of a device 100 to protect the cut end of an elongated metal element 102 against corrosion. The elongated metal element 102 comprises for example a metal wire or a metal cord. The elongated metal element is coated with a self-healing coating 103. The device 100 comprises a first jaw 106 and a second jaw 108 hinged at point 1 10. The first jaw 106 and the second jaw 108 are provided with means 109 to heat the elongated metal element 102 over a length L.
Furthermore the first jaw 106 and the second jaw 108 are adapted to apply pressure on said elongated metal element 102 over a length L.
[0034] Figure 2 is a schematic illustration of the heat and pressure that is applied to the section adjacent to the cut end in function of the distance from the cut end in case the cutting step and the application of heat and pressure are performed in two consecutive steps.
The vertical axis at the left side shows the temperature that is applied while the vertical axis at the right side shows the pressure that is applied. The horizontal axis shows the distance from the cut end.
[0035] The temperature applied in function of the distance from the cut end is shown by curve 204. At a distance L from the cut end the temperature applied is equal to a temperature Ti and at the cut end the temperature applied is equal to T2, with T2 > Ti .
[0036] The pressure applied in function of the distance from the cut end is shown by curve 202. The pressure applied at a distance L from the cut end is equal to Pi, whereas the pressure applied at the cut end is equal to P2, with Pi>P2.
[0037] Figure 3 is a schematic illustration of the heat and pressure that is applied to the section adjacent to a cut end in function of the distance from the cut end in case the cutting step and the application of heat and pressure are performed in one step.
[0038] The temperature applied in function of the distance from the cut end is shown by curve 304. Curve 304 is similar to curve 204 of Figure 2.
[0039] The pressure applied in function of the distance from the cut end is shown by curve 302. The pressure applied at a distance L from the cut end is equal to Pi , the pressure applied is decreasing towards the cut end to a pressure Px and is increasing again to a pressure P2 at the cut end. P2 can be higher than Pi .
The pressure P2 applied locally at the cut end is due to the cutting operation.

Claims

A method to provide a cut end of an elongated metal element with corrosion protection, said method comprising the steps of
providing an elongated metal element, said elongated metal element being at least partially coated with a self-healing coating;
cutting said elongated metal element, thereby providing said elongated metal element with a cut end;
applying heat and pressure to a section of said coated elongated metal element adjacent to said cut end, said section having a length L, whereby said heat and pressure is applied in such a way that the self-healing coating of said section is triggered and is flowing out to cover said cut end.
A method according to claim 1 , whereby said cutting step and said application of heat and pressure are performed in one step.
A method according to claim 1 , whereby said cutting step and said application of heat and pressure are performed in two consecutive steps.
A method according to any one of the preceding claims, whereby said length L is higher than the diameter of said elongated metal element.
A method according to any one of the preceding claims, whereby said self- healing coating has a thickness higher than 1 % of the diameter or the equivalent diameter of said elongated metal element.
A method according to any one of the preceding claims, whereby heat is applied to said section adjacent to said cut end in such a way that the temperature at a distance L from said cut end is equal to Ti and the temperature at said cut end is T2, with T2 being higher than T
A method according to any one of the preceding claims, whereby pressure is applied to said section adjacent to said cut end in such a way that the pressure applied at a distance L from said cut end is equal to Pi and that the pressure applied is decreasing towards the cut end.
8. A method according to claim 5, whereby said pressure is gradually
increasing with the distance from said cut end.
9. A device for protecting the cut end of an elongated metal element according to a method as described in any one of claims 1 to 8, said device
comprising at least a first jaw and a second jaw, said first jaw and said second jaw being hinged to one another, said first jaw and said second jaw being provided with means to heat a section of said elongated metal element over a length L, said first jaw and said second jaw being adapted to apply pressure on said elongated metal element over said length L.
10. A device according to claim 9, whereby said first and said second jaw are provided with heating means.
PCT/EP2014/052718 2013-03-11 2014-02-12 A method to protect the cut end of an elongated metal element WO2014139746A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13158618 2013-03-11
EP13158618.2 2013-03-11

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Publication Number Publication Date
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040183210A1 (en) * 2003-03-18 2004-09-23 Shijian Luo Protective layers formed on semiconductor device components so as to reduce or eliminate the occurrence of delamination thereof and cracking therein
US20060149290A1 (en) * 2003-03-21 2006-07-06 Romano Matthys-Mark Cutting and forming device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040183210A1 (en) * 2003-03-18 2004-09-23 Shijian Luo Protective layers formed on semiconductor device components so as to reduce or eliminate the occurrence of delamination thereof and cracking therein
US20060149290A1 (en) * 2003-03-21 2006-07-06 Romano Matthys-Mark Cutting and forming device

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