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WO2018197365A1 - Câble et procédé de production d'un câble - Google Patents

Câble et procédé de production d'un câble Download PDF

Info

Publication number
WO2018197365A1
WO2018197365A1 PCT/EP2018/060246 EP2018060246W WO2018197365A1 WO 2018197365 A1 WO2018197365 A1 WO 2018197365A1 EP 2018060246 W EP2018060246 W EP 2018060246W WO 2018197365 A1 WO2018197365 A1 WO 2018197365A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheath
cable
release layer
layer
cable according
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.)
Ceased
Application number
PCT/EP2018/060246
Other languages
German (de)
English (en)
Inventor
Claus Beisert
Sebastian GOSS
Daniel LASTINGER
Jörg Ruder
Werner TECKER
Jörg Wenzel
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.)
Leoni Kabel GmbH
Original Assignee
Leoni Kabel GmbH
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 Leoni Kabel GmbH filed Critical Leoni Kabel GmbH
Publication of WO2018197365A1 publication Critical patent/WO2018197365A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • H01B13/141—Insulating conductors or cables by extrusion of two or more insulating layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • H01B13/148—Selection of the insulating material therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875—Multi-layer sheaths
    • H01B7/1885—Inter-layer adherence preventing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
    • H01B7/361—Insulated conductors or cables characterised by their form with distinguishing or length marks being the colour of the insulation or conductor

Definitions

  • the invention relates to a cable with a separating layer between a cable element of the cable and a jacket. Furthermore, the invention relates to a method for producing a cable.
  • Such a cable is used for example for data transmission and / or power transmission.
  • the respective cable comprises one or more line elements which are surrounded by an outer sheath as a cable sheath.
  • the at least one line element in this case has an enclosure which forms a cable jacket.
  • the line element is in particular a wire.
  • the line element is a line core, which may have a plurality of individual elements, for example a plurality of cores, which are jointly surrounded by the sheath.
  • the adhesive fit between the conduit member and the sheath of a cable may vary.
  • the adhesive seat designates the force required to separate the sheath of the cable and the conduit member after a radial cut of the sheath in the cable longitudinal direction, in order to strip and sheath the cable, for example, in one end portion.
  • Powders or powders for example talcum / stearates
  • films are currently usually used as release agents.
  • the respective adhesive seat is hereby specific and in particular matched to the automatic equipment used, which can realize a process-safe stripping of the line only in a specific adhesion seat area.
  • films are used as release agents.
  • the films which are usually made of polyethylene (PET), polyethylene terephthalate (PETP) or similar materials are placed around the wires and then fixed in the jacket extrusion.
  • PET polyethylene
  • PETP polyethylene terephthalate
  • the films used are due to their small thickness of a few ⁇ a major hurdle in the stripping.
  • a radial cut that softens the sheath does not necessarily have to be up to the inner cores. If this radial cut is deep enough, automatic packaging machines can tear off the remaining material. However, if a film under the jacket attached, this can not be removed, which leads to problems in automatic equipment.
  • the invention is therefore based on the object of specifying a way by means of which the stripping of a cable can be improved.
  • a cable with at least one line element which has an envelope made of a first material and a separating layer applied to the envelope of a separating layer from the first material. having different second material.
  • the cable has a jacket made of a third material, wherein the separating layer consists of a crosslinked second material and is arranged between the jacket and the jacket.
  • the release layer is located directly between the sheath and the sheath.
  • the material of the separating layer expediently has a greater adhesion or a higher adhesive fit to the sheath than to the sheath.
  • the release layer is firmly connected to the enclosure. Since the release layer is not wound around the sheath (as a foil) or in the form of a powder application, as has hitherto been customary, a firm connection is achieved between the sheath and the release layer.
  • the separating layer is preferably formed as a closed layer or a closed envelope, which encloses the envelope completely in the manner of a jacket both in the longitudinal direction of the cable and over the entire circumference of the envelope.
  • crosslinked second material results in a release layer that allows for improved strippability of the jacket from the wire or cladding.
  • degree of crosslinking influence on the mechanical and thermal properties such as strength, modulus of elasticity or toughness and in particular on the adhesive seat can be taken.
  • use of a crosslinkable material allows a high process and application speed for the release layer.
  • the separating layer consists of a curable by UV second material.
  • the UV radiation forms radicals or reactive cations, which in turn initiate crosslinking of the material and thus the formation of a particularly closed separation layer.
  • a high process speed can be set by, for example, selecting the illumination path for the UV curing to be sufficiently long and / or setting the UV illumination appropriately.
  • an acrylate is particularly preferable to use an acrylate as the second material.
  • Acrylates or acrylic resins are synthetic resins and are based on polymers or copolymers of acrylic acid, methacrylic acid and their esters.
  • thermosetting acrylate is one-component, room-temperature curing reaction resins whose radical polymerization is effected by UV or visible light.
  • Acrylates 838 / L 23700, 831/804 and L 23381 from "Farbtechnike Herkula AG”, Sankt Vith (Belgium) have proved to be particularly suitable, in particular when these acrylates were used, it was possible to adjust low adhesion fits and thus improve the cable's strippability ,
  • cyanoacrylates as a one-component system is suitable.
  • Two- or multi-component systems such as epoxy resins, phenolic resins, aminoplasts, polyester resins or polyurethanes can also be used in the context of the invention as a second material for the release layer.
  • the release liner is applied by a suitable method which generally applies or sprays the second material in liquid or viscous form and then cures.
  • the separating layer that is to say the second material
  • the covering for example, or to apply it by means of an immersion bath through which the line element is pulled.
  • the separating layer is extruded onto the casing.
  • the second material used to form the release layer is pressed out under pressure continuously from a shaping opening.
  • a conventional method is used, which is also used in a conventional coat extrusion and allows high process speeds.
  • first and / or the third material are also extrudable, then it is further advantageous if a plurality of materials, in particular the covering and the separating layer, are applied by coextrusion in one working step. Alternatively, the respective materials of the components are successively applied individually by extrusion.
  • the separating layer of the cable expediently has a layer thickness in the range of at least 10 ⁇ and preferably up to 100 ⁇ . Furthermore, the layer thickness is in particular in the range of 20 ⁇ to 70 ⁇ and especially in the range of 30 ⁇ to 40 ⁇ . For the desired separation effect, thin layers in the range of a few micrometers are sufficient. In addition, thin layers allow rapid curing and thus high process speeds. The preferred value ranges, especially the range between 30 ⁇ and 40 ⁇ , have been found in tests to be particularly suitable.
  • the first material used is preferably at least one thermoplastic which is selected from a group consisting of polypropylene (PP), cross-linked polyethylene (PE-X), cross-linked ethylene-vinyl acetate (EVA) and polyvinyl chloride (PVC).
  • PP polypropylene
  • PE-X cross-linked polyethylene
  • EVA cross-linked ethylene-vinyl acetate
  • PVC polyvinyl chloride
  • the envelope of the inner conductor is made of at least one of the aforementioned materials.
  • the envelope is preferably made of exactly one material.
  • the envelope can also be constructed in multiple layers of different materials. In this case, the outermost layer is preferably formed from one of the aforementioned materials.
  • thermoplastic elastomer As a third material for the coat applied to the separating layer, in a preferred embodiment at least one thermoplastic elastomer (TPE) is used, which is preferably selected from a group consisting of TPE-O, TPE-S and TPE-U.
  • Thermoplastic elastomers are materials in which elastic polymer chains are incorporated in thermoplastic material. They can be processed in a purely physical process in combination of high shear forces, heat and subsequent cooling.
  • thermoplastic olefins based on olefin such as polypropylene / ethylene-propylene-diene rubbers (PP / EPDM), styrene block copolymers (TPE-S) such as styrene-butadiene block copolymers (SBS), styrene Ethylene-butylene-styrene (SEBS) or methyl methacrylate-butadiene-styrene (MBS) and urethane-based thermoplastic elastomers (TPE-U).
  • TPE-O polypropylene / ethylene-propylene-diene rubbers
  • styrene block copolymers such as styrene-butadiene block copolymers (SBS), styrene Ethylene-butylene-styrene (SEBS) or methyl methacrylate-butadiene-styrene (MBS)
  • thermoplastic elastomers in combination with the release layer, in particular of acrylate, has been found to be particularly favorable for the desired adjustment of the low adhesion seat between release liner and sheath, while at the same time providing good adhesion to the sheath, especially when made from any of the aforementioned materials for the second material. Overall, this gives a good strippability.
  • Styrene block copolymers (TPE-S) and / or thermoplastic elastomers based on olefins (TPE-O) are preferably used as the third material for the sheath, and the first material for the sheath is a thermoplastic elastomer, in particular based on urethane (TPE-U).
  • TPE-S Styrene block copolymers
  • TPE-O thermoplastic elastomers based on olefins
  • TPE-U thermoplastic elastomer, in particular based on urethane
  • the cable preferably comprises a plurality of conduit elements each having a release layer applied to its enclosure and which are coextensive with the enclosure.
  • the jacket in particular represents the outermost jacket of the cable.
  • no further layer or sheath is formed concentrically around or on the outer circumference of the cable sheath.
  • the Sheath expediently directly surrounds the plurality of line elements, that is to say in particular without the interposition of further layers, such as, for example, sheath layers or the like.
  • the respective line element is preferably designed as a core.
  • a core is formed by an inner conductor and a sheath forming the sheath and the release layer.
  • the separating layer is therefore applied directly to the wire jacket.
  • the cable comprises a plurality of line elements, in particular wires, which differ in color, for which purpose only the separation layers of the wires differ in color, but the sheaths of the individual wires are color-indistinguishable.
  • each vein is colored differently, wherein the color is expediently achieved by a correspondingly colored second material for the respective separating layers.
  • line elements, especially cores are produced on a larger scale in neutral color, to be subsequently coated with colored second materials to form corresponding separating layers according to customer specifications.
  • the object is further achieved by a method for producing a cable having at least one line element, which has an envelope of a first material and a release layer applied to the envelope of a second material different from the first material. Furthermore, the cable has a sheath made of a third material, wherein a crosslinkable second material is applied to the sheath and then cured to form the release layer.
  • the advantages and preferred embodiments given with regard to the cable can also be transferred analogously to the method. Preferred developments are contained in the subclaims.
  • the layer thickness of the acrylate that is to say the applied release layer, is expediently monitored, in particular by means of cameras which detect the diameter. In this case, it is expedient at the same time to check that the acrylate layer is closed radially around the sheath.
  • an acrylate is applied in a preferred embodiment by extrusion, which is subsequently cured by UV curing.
  • the surface of the coating is treated before the release layer is applied, in particular by a corona treatment.
  • extrusion as well as the subsequent UV curing are carried out at high line speeds of preferably several hundred meters per minute, for example 300 to 800 meters per minute.
  • the respective line element is preferably conveyed through a lighting path, for example through a tunnel, in which the second material hardens / polymerizes by the irradiation with UV light and thus is almost chemically inert. It is also possible to double the line speed in the order process by, for example, doubling the number of UV lamps used, thereby shortening the overall order time.
  • first of all a plurality of line elements, in particular wires with the separating layer, are preassembled, as it were.
  • the resulting line elements are wound up after the curing of the separating layer, for example on coils.
  • several of the line elements are combined to form a desired end product, which form a cable core around which then the jacket is applied by means of a jacket extrusion.
  • the individual line elements which are prefabricated with the separating layer are unwound from the coils.
  • Such a data cable is in particular formed by one or more pairs of wires stranded together, each core being surrounded by the separating layer.
  • the jacket is applied directly, without interposition of other sheathings such as shielding.
  • the respective coating materials were applied to polypropylene extrudates by means of 80 ⁇ m spiral wraps to form a corresponding separating layer.
  • the curing took place by means of UV radiation.
  • the dry layer thickness of the formed separating layers was in each case about 40 ⁇ .
  • the coatings were then tested for adhesion, cure and flexibility.
  • the adhesion was determined by means of a tape test and a cross-hatch.
  • the cure was checked for surface dryness. The flexibility was ensured by manual bending.
  • the curing of the Acrylates 838 / L23700 and 831/804 takes place analogously to the screening experiments.
  • the jacket materials were on with the respective acrylate coated Adermate alien laid.
  • the core materials and cladding materials were fixed between two glass plates and loaded by a 5 kg weight with a force of 0.22 N / cm 2 .
  • the assembly was heated at 190 ° C for 15 minutes. After cooling, the blocking resistance was assessed on the basis of whether the jacket materials could be stripped off the coated core materials.
  • TPE-S styrene block copolymers
  • TPE-O olefin-based thermoplastic elastomers
  • TPE-U urethane-based thermoplastic elastomers
  • Fig. 1 shows a schematic cross section through a provided with the separating layer wire
  • Fig. 2 is a schematic cross section through multi-core cable.
  • the core 3 comprises an inner conductor 5, for example made of copper, and a surrounding enclosure 7, for example made of polypropylene, as the first material.
  • a release layer 9 is applied directly.
  • the release layer 9 is applied by extrusion to the envelope 7 and consists of a second material, in particular of an acrylate.
  • the sheath 7 and the release layer 9 are preferably formed by coextrusion.
  • the first and second materials are different from each other. After the extrusion of the second material, this was crosslinked by UV radiation and cured and forms a completely closed separating layer 9 with a layer thickness d of, for example, 30-40 ⁇ .
  • the conduit element itself may comprise a plurality of elements, such as cores, and thereby form a cable core having the sheath 7 as a common enclosure for the plurality of elements.
  • the release layer 9 is applied on this common envelope 7, the release layer 9 is applied.
  • the wires 3 which are prefabricated with the separating layer 9 are preferably used in a subsequent final assembly of a cable 1, as illustrated, for example, in FIG. 2.
  • the wires 3 are stranded (paired) together to form a lead core.
  • the wires 3 are surrounded directly by a jacket 1 1 of your third material, which is usually applied by means of coat extrusion.
  • the jacket 1 1 is for example tubular, so that free gussets are formed to the wires 3.
  • the third material of the shell penetrates 1 1 in the
  • the third material is different from the second material of the release layer 9.
  • the jacket 11 preferably consists of a styrene block copolymer (TPE-S). All three materials consist in particular of a non-conductive insulating material, in particular of a plastic material.
  • the shell 1 1 on a single-core line that is applied directly to the illustrated in Fig. 1 and provided with the release layer 9 wire 3.
  • the sheath 1 1 can also be applied to the provided with the separation layer 9 common sheath 7 of the previously described variant of the conduit element, wherein the conduit element comprises a plurality of elements.
  • the separating layer 9 is directly between the shell 1 1 and the enclosure 7, that is, there is no further layer between the release layer 9 and the inside of the shell 1 1 attached.
  • the separating layer 9 forms part of the core 3.
  • the UV radiation crosslinking acrylate as a second material for the release layer 9 of the adhesive seat between the shell 1 1 and wire 3 is reduced, thus ensuring the easy strippability of the applied to the release layer 9 shell 1 1.
  • the individual wires 3 are easily separated from each other as a result of the separating layers 9.
  • the wires 3 are each shown with the same diameter.
  • the wires 3 may also have different diameters depending on the type of cable 1 and be used, for example, for data transmission or power transmission.
  • the cable 1 is in a variant of a pure data cable and has - preferably exclusively - one or more (pair) stranded cores 3 on.
  • it is designed for example as a hybrid cable, in which a part of the wires 3 are used for data transmission and another part for power transmission and formed.
  • a central strand 13 is still arranged, for example, as Bushstrang or as a strain relief.
  • the individual wires 3 preferably have different colors, for which purpose preferably only the separating layers 9 are colored differently. On the coloring of the sheaths 7 is particularly omitted, i. these have the same color in all wires 3.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Abstract

L'invention concerne un câble pourvu d'au moins un élément conducteur qui présente un gainage réalisé dans un premier matériau et une couche barrière appliquée sur le gainage et constituée d'un deuxième matériau différent du premier matériau, ainsi qu'une gaine réalisée dans une troisième matériau, la couche barrière étant constituée d'un deuxième matériau réticulé et étant disposée entre la gaine et le gainage.
PCT/EP2018/060246 2017-04-24 2018-04-20 Câble et procédé de production d'un câble Ceased WO2018197365A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017003959 2017-04-24
DE102017003959.3 2017-04-24

Publications (1)

Publication Number Publication Date
WO2018197365A1 true WO2018197365A1 (fr) 2018-11-01

Family

ID=62046913

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/060246 Ceased WO2018197365A1 (fr) 2017-04-24 2018-04-20 Câble et procédé de production d'un câble

Country Status (1)

Country Link
WO (1) WO2018197365A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024110628A1 (fr) 2022-11-25 2024-05-30 Gebauer & Griller Kabelwerke Gesellschaft M.B.H. Câble de données

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767894A (en) * 1984-12-22 1988-08-30 Bp Chemicals Limited Laminated insulated cable having strippable layers
JPH07320560A (ja) * 1994-05-19 1995-12-08 Hitachi Cable Ltd 紫外線硬化発泡絶縁電線及びその製造方法
EP0727790A2 (fr) * 1995-02-16 1996-08-21 Delta Crompton Cables Limited Câble électrique
DE29808657U1 (de) * 1998-05-14 1999-08-12 Siemens AG, 80333 München Elektrisches Signalübertragungskabel
DE202006021023U1 (de) * 2005-06-16 2012-02-27 Leoni Kabel Holding Gmbh & Co. Kg Kabel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4767894A (en) * 1984-12-22 1988-08-30 Bp Chemicals Limited Laminated insulated cable having strippable layers
JPH07320560A (ja) * 1994-05-19 1995-12-08 Hitachi Cable Ltd 紫外線硬化発泡絶縁電線及びその製造方法
EP0727790A2 (fr) * 1995-02-16 1996-08-21 Delta Crompton Cables Limited Câble électrique
DE29808657U1 (de) * 1998-05-14 1999-08-12 Siemens AG, 80333 München Elektrisches Signalübertragungskabel
DE202006021023U1 (de) * 2005-06-16 2012-02-27 Leoni Kabel Holding Gmbh & Co. Kg Kabel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024110628A1 (fr) 2022-11-25 2024-05-30 Gebauer & Griller Kabelwerke Gesellschaft M.B.H. Câble de données

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