EP0080138B1 - Procédé d'imprégnation de fils et de câbles torsadés gainés par extrusion d'une matière thermoplastique - Google Patents

Procédé d'imprégnation de fils et de câbles torsadés gainés par extrusion d'une matière thermoplastique Download PDF

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Publication number
EP0080138B1
EP0080138B1 EP82110490A EP82110490A EP0080138B1 EP 0080138 B1 EP0080138 B1 EP 0080138B1 EP 82110490 A EP82110490 A EP 82110490A EP 82110490 A EP82110490 A EP 82110490A EP 0080138 B1 EP0080138 B1 EP 0080138B1
Authority
EP
European Patent Office
Prior art keywords
wires
thread
covered
extrusion
thermoplastic polycondensates
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.)
Expired
Application number
EP82110490A
Other languages
German (de)
English (en)
Other versions
EP0080138A1 (fr
Inventor
Helmut Lehmann
Udo Dipl.-Chem. Dr. Reiter
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.)
BASF Coatings GmbH
SI Group Inc
Original Assignee
Dr Beck & Co AG
Beck Dr and Co 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 Dr Beck & Co AG, Beck Dr and Co GmbH filed Critical Dr Beck & Co AG
Priority to AT82110490T priority Critical patent/ATE18314T1/de
Publication of EP0080138A1 publication Critical patent/EP0080138A1/fr
Application granted granted Critical
Publication of EP0080138B1 publication Critical patent/EP0080138B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/065—Insulating conductors with lacquers or enamels

Definitions

  • the invention relates to a method for the extrusion coating of round and profile wires and strands according to the preamble of the main claim.
  • the most diverse and more or less temperature-sensitive insulating materials are used, e.g. Cellulose paper, cotton yarn, silk yarn, acetate yarn, polyamide yarn, etc., which are mostly given a temperature-resistant impregnation to improve their thermal properties.
  • the use of glass jars for spinning is cheaper because it itself meets the highest temperature requirements and also has valuable electrical properties.
  • the wetting and soaking capacity of the glass silk is poor. It is therefore necessary to carry out the impregnation during the spinning process in order to achieve a firm anchoring of the glass fiber on the turn and to prevent the fiberglass spinning from lifting off the wire when the conductor is inserted into the grooves and the associated bends and twists .
  • the impregnation varnish also has the task of embedding the easily breaking thin glass threads and baking them together, thus giving the wound wire a smooth surface.
  • the dielectric properties are improved.
  • a conventional enamelled wire can be used instead of a bare wire.
  • the enamelled wound wires are usually produced on conventional enamelled wire machines, which have been supplemented by one or two rewinder devices, or on systems that are similar to the commercial horizontal and interlocking machines used in enamelled wire production.
  • the excess paint is preferably wiped off with a rubber sponge.
  • thermoplastics in the extrusion process
  • hose spraying method ie a hose made of the thermoplastic material is injected around the conductor in a first operation, which is then stretched onto the conductor in a second operation Head is shrunk. This is achieved in that the withdrawal speed of the conductor is greater than the injection speed of the hose.
  • the layer thickness is regulated solely by the speed.
  • DE-A-26 38 763 makes it possible for the first time to manufacture winding wires by extrusion of thermoplastic polycondensates in one operation without aftertreatment, such as stretching, and in a layer thickness which corresponds to the standard DIN 46435.
  • the layer thickness is determined by the nozzle system. Solvent-free, partially crystalline, thermoplastic polycondensates with a crystallite melting point above 170 ° C. are used as the coating material.
  • the invention has for its object to improve the generic method in such a way that a simplified method for the impregnation and coating of wound wires and strands is created which, in addition to a simplified procedure, has a higher productivity and improves the solidification and adhesion to the electrical conductor.
  • thermoplastic polycondensates can be used as the thermoplastic material for pressure impregnation, e.g. the following semi-crystalline polycondensates: linear aromatic polyesters. such as polyethylene terephthalate, possibly also filled with titanium dioxide, linear aliphatic or aromatic polyamides, polyphenylene sulfide, which have crystallite melting points above 170 ° C, and polyether ketones and araliphatic polyamides with crystallite melting points of at least 280 ° C and the amorphous polyether sulfones.
  • linear aromatic polyesters such as polyethylene terephthalate, possibly also filled with titanium dioxide, linear aliphatic or aromatic polyamides, polyphenylene sulfide, which have crystallite melting points above 170 ° C, and polyether ketones and araliphatic polyamides with crystallite melting points of at least 280 ° C and the amorphous polyether sulfones.
  • thermoplastic polycondensates used can be those which have been made flame-retardant using the methods known for fire protection equipment with halogen compounds, also in combination with phosphorus compounds, e.g. Polyethylene terephthalate with brominated oligostyrene or with polybrominated diphenyl ether or with hexabromophenyl and triphenylphosphine oxide. It should be noted that the polyethersulfones do not require any additives since they are intrinsically flame-retardant (according to Underwriters Lab. Test 94-VO).
  • the wire material for pressure impregnation includes both bare and enamelled wires and extrusion-coated winding wires in the form of round and profile wires and strands, which are coated with the various insulating materials known for spinning, e.g. Cotton, silk, acetate or polyamide yarn, have been spun, but preferably those in which the glass fiber used as a good basis for thermally resistant insulation is used as the spinning material.
  • various insulating materials known for spinning e.g. Cotton, silk, acetate or polyamide yarn, have been spun, but preferably those in which the glass fiber used as a good basis for thermally resistant insulation is used as the spinning material.
  • the pressure-impregnated wound wires and strands are used wherever high mechanical and thermal requirements are placed, i.e. the usual areas of application for enamelled wound wires and strands.
  • a 1 L or a 2 L winding wire was used, which had been produced by coating with a polyethylene terephthalate filled with 8% titanium dioxide in the extrusion process and was then wound with glass fiber once or twice. It first went through a preheating section and, after passing through the coating zone in the extruder head, a wiper nozzle to regulate the layer thickness. The pressure-impregnated wire then passed a cooling section and was wound up.
  • the specified extruder temperatures refer to the distance from the inlet to the nozzle, whereby the last three temperature specifications apply to the nozzle system.

Claims (7)

1. Procédé de revêtement par extrusion de fils métalliques ronds et profilés ainsi que de torons, au moyen de produits de polycondensation thermoplastiques partiellement cristallins ou amorphes, exempts de solvant, caractérisé par le fait que l'on imprègne sous pression et que l'on revêt en une seule opération des fils métalliques et torons guipés, dans un seul appareil d'extrusion.
2. Procédé selon la revendication 1, caractérisé par le fait que l'on utilise comme produits de polycondensation thermoplastiques des produits de polycondensation thermoplastiques partiellement cristallins ayant des points de fusion de cristallites supérieurs à 170°C.
3. Procédé selon la revendication 1, caractérisé en ce que comme produits de polycondensation thermoplastiques, on utilise des polyéthers-sulfones amorphes.
4. Procédé selon les revendications 1 à 3, caractérisé par le fait que comme produits de polycondensation thermoplastiques, on utilise des produits de polycondensation thermoplastiques ignifuges.
5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que comme fils métalliques guipés, on utilise des fils métalliques nus guipés.
6. Procédé selon les revendications 1 à 4, caractérisé en ce que comme fils métalliques et torons guipés, on utilise ceux qui ont été obtenus en partant de fils de bobinage revêtus par le procédé de vernissage ou d'extrusion.
7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que comme fils métalliques et torons guipés, on utilise des fils métalliques et torons guipés de silionne.
EP82110490A 1981-11-19 1982-11-13 Procédé d'imprégnation de fils et de câbles torsadés gainés par extrusion d'une matière thermoplastique Expired EP0080138B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110490T ATE18314T1 (de) 1981-11-19 1982-11-13 Verfahren zur impraegnierung umsponnener draehte und litzen durch extrusion von thermoplasten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3145918 1981-11-19
DE19813145918 DE3145918A1 (de) 1981-11-19 1981-11-19 Verfahren zur impraegnierung umsponnener draehte mit litzen durch extrusion von thermoplasten.

Publications (2)

Publication Number Publication Date
EP0080138A1 EP0080138A1 (fr) 1983-06-01
EP0080138B1 true EP0080138B1 (fr) 1986-02-26

Family

ID=6146743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82110490A Expired EP0080138B1 (fr) 1981-11-19 1982-11-13 Procédé d'imprégnation de fils et de câbles torsadés gainés par extrusion d'une matière thermoplastique

Country Status (7)

Country Link
US (1) US4590025A (fr)
EP (1) EP0080138B1 (fr)
JP (1) JPS58501973A (fr)
AT (1) ATE18314T1 (fr)
BR (1) BR8207940A (fr)
DE (2) DE3145918A1 (fr)
WO (1) WO1983001864A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05269726A (ja) * 1992-03-25 1993-10-19 Mitsui Constr Co Ltd 土木建築構造物補強材
US6258453B1 (en) 1996-09-19 2001-07-10 Lawrence V. Montsinger Thermoplastic composite materials made by rotational shear
US6533977B1 (en) * 1997-12-10 2003-03-18 Acs Industries, Inc. High temperature composite structure and method of manufacturing same

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172931A (en) * 1965-03-09 Method of making conduit utilizing helically preformed elements
US2163119A (en) * 1937-12-07 1939-06-20 Anaconda Wire & Cable Co Magnet wire
US2349951A (en) * 1938-11-16 1944-05-30 Bell Telephone Labor Inc Electrical conductor
US2349952A (en) * 1939-04-22 1944-05-30 Bell Telephone Labor Inc Electrical conductor
US2669754A (en) * 1947-11-26 1954-02-23 Danielson Mfg Company Manufacture of composite wire and rope
US2636923A (en) * 1948-12-30 1953-04-28 Standard Telephones Cables Ltd Low capacitance cable and method of making the same
US2718544A (en) * 1950-09-09 1955-09-20 Gen Electric Jacketed multiple conductor cable
US3579379A (en) * 1966-12-01 1971-05-18 Franciscus C A A Van Berkel Process for producing conductors insulated with polyethylene terephthalate
US3606632A (en) * 1968-01-19 1971-09-21 Anaconda Wire & Cable Co Extruded cable covering with fibrous interlayer and apparatus
US4033800A (en) * 1971-01-25 1977-07-05 United States Steel Corporation Method of making an electric cable
US3856888A (en) * 1972-11-01 1974-12-24 Universal Oil Prod Co Flame retardant compositions
JPS5645942B2 (fr) * 1973-01-18 1981-10-29
DE2409655B2 (de) * 1973-03-01 1976-10-28 Minnesota Mining and Manufacturing Co.,-Saint Paul, Minn. (V.St.A.) Verfahren zum umkleiden von elektrischen leitern aus aluminium
US4172859A (en) * 1975-05-23 1979-10-30 E. I. Du Pont De Nemours And Company Tough thermoplastic polyester compositions
CH616264A5 (fr) * 1976-07-01 1980-03-14 Maillefer Sa
CH612789A5 (fr) * 1976-07-01 1979-08-15 Maillefer Sa
US4131758A (en) * 1977-08-10 1978-12-26 United States Steel Corporation Double caged armored electromechanical cable
DE2753917A1 (de) * 1977-12-03 1979-06-07 Beck & Co Ag Dr Verwendung von thermoplasten zur herstellung von isolierten wickeldraehten im extrusionsverfahren
JPS5910698B2 (ja) * 1978-05-18 1984-03-10 東洋紡績株式会社 ポリエステル組成物
DE2911269C2 (de) * 1979-03-22 1982-12-09 Dr. Beck & Co Ag, 2000 Hamburg Verwendung von Thermoplasten zur Herstellung von isolierten Wickeldrähten im Extrusionsverfahren
DE2936795C2 (de) * 1979-09-12 1982-12-09 Dr. Beck & Co Ag, 2000 Hamburg Verfahren zur Herstellung isolierter Wickeldrähte durch Extrusion von Thermoplasten
JPS5699914A (en) * 1979-12-27 1981-08-11 Beck & Co Ag Dr Method of manufacturing directly soldable insulated coil
US4309597A (en) * 1980-05-19 1982-01-05 Sunbeam Corporation Blanket wire utilizing positive temperature coefficient resistance heater

Also Published As

Publication number Publication date
US4590025A (en) 1986-05-20
DE3269476D1 (en) 1986-04-03
DE3145918A1 (de) 1983-05-26
JPS58501973A (ja) 1983-11-17
EP0080138A1 (fr) 1983-06-01
WO1983001864A1 (fr) 1983-05-26
BR8207940A (pt) 1983-10-04
ATE18314T1 (de) 1986-03-15

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