EP0080138B1 - Method of impregnating spun-coated wires and stranded wires by extrusion of thermoplastics - Google Patents
Method of impregnating spun-coated wires and stranded wires by extrusion of thermoplastics Download PDFInfo
- 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
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- 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.)
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Classifications
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- 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.
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zur Extrusionsbeschichtung von Rund- und Profildrähten sowie Litzen gemäß dem Gattungsbegriff des Hauptanspruches.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.
Es ist seit langem bekannt. Kupferleiter oder Aluminiumleiter, ggf. nach vorheriger Lackisolation, mit einer isolierenden Gewebefaserschicht zu umspinnen und die Umspinnung ggf. anschließend mit einem Lack zu imprägnieren.It has been known for a long time. To spin copper conductors or aluminum conductors, if necessary after prior lacquer insulation, with an insulating fabric fiber layer and, if necessary, to subsequently impregnate the wrapping with a lacquer.
Dabei kommen die verschiedenartigsten mehr oder weniger temperaturempfindlichen Isolierstoffe, z.B. Zellulosepapier, Baumwollgarn, Seidengarn, Acetatgarn, Polyamidgarn u.a., zum Einsatz, die meist zur Verbesserung ihrer thermischen Eigenschaften eine temperaturebeständige Imprägnierung erhalten. Günstiger ist der Einsatz von Glasgern für die Umspinnung, da dieses selbst schon höchsten Temperaturanforderungen genügt und darüber hinaus über wertvolle elektrische Eigenschaften verfügt. Das Netz- und Durchtränkungsvermögen der Glasseide ist allerdings schlecht. Deshalb ist es erforderlich, die Imprägnierung schon bei der Umspinnung vorzunehmen, um so eine feste Verankerung der Glasseide auf dem Dreht zu erzielen und zu verhindern, daß beim Einlagen der Leiter in die Nuten und den damit verbundenen Biegungen und Verdrillungen die Glasseidenumspinnung sich vom Draht abhebt.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 .
Der Imprägnierlack hat auch die Aufgabe, die leicht brechenden dünnen Glasfäden einzubetten und miteinander zu verbacken und so dem umsponnenen Draht eine glatte Oberfläche zu verleihen.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.
Durch die Ausfüllung der Zwischenräume bei der Imprägnierung werden die dielektrischen Eigenschaften verbesssert. Zur weiteren Verbesserung dieser Eigenschaften kann statt eines Blankdrahtes ein konventioneller Lackdraht eingesetzt werden.By filling the gaps during the impregnation, the dielectric properties are improved. To further improve these properties, a conventional enamelled wire can be used instead of a bare wire.
Bisher sind sehr verschiedenartige Lacke zur Imprägnierung verwendet worden, die den lsolierstoffklassen B, F aber auch H angehören. Duch die temperaturbeständige Glasseide kann aber das Gesamtsystem meist der Klasse H zugeordnet werden.So far, very different types of varnish have been used for impregnation, which belong to the insulation classes B, F but also H. Thanks to the temperature-resistant glass silk, the entire system can usually be assigned to class H.
Die lackgebundenen umsponnenen Drähte werden üblicherweise auf konventionnellen Lackdrahtmaschinen, die um eine bis zwei Umspinnvorrichtungen ergänzt worden sind, oder aber auf Anlagen, die den handelsüblichen Horizontal- und Vertakalmaschinen der Lackdrahtproduktion ähnlich sind, hergestellt. Die Abstreifung des überschüssigen Lackes erfolgt vorzugsweise mit einem Gummischwamm.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.
Für ein Verfahren zur Herstellung lackgebundener glasseidenumsponnener Drähte sind dabei die folgenden Arbeitsgänge möglich:
- 1. Auftragen eines Lackes auf den Blankleiter im Lackbad,
- 2. Anhärten des Lackfilms,
- 3. 2. Lackauftrag,
- 4. Umspinnen in den nassen Lackfilm
- 5. 3. Lackauftrag
- 6. zweites, häufig gegenläufiges Umspinnen,
- 7. 4. Lackauftrag,
- 8. Aushärten des nach 1.-7. erhaltenen lsolationsaufbaus,
- 9. 5. Lackauftrag,
- 10. Aushärten,
- 11. die Arbeitsgänge 9. und 10. mehrmals wiederholen entsprechend den Anforderungen, wie gewünschte Schichtstärke efc.
- 1. applying a varnish to the bare conductor in the varnish bath,
- 2. hardening of the paint film,
- 3. 2. paint application,
- 4. Spinning in the wet paint film
- 5. 3. Paint application
- 6. second, often opposing spinning,
- 7. 4. paint application,
- 8. Hardening the after 1.-7. insulation structure obtained,
- 9. 5. paint application,
- 10. curing,
- 11. Repeat the operations 9. and 10. several times according to the requirements, such as the desired layer thickness efc.
Die vielen Arbeitsgänge weisen auf ein recht umständliches Verfahren hin.The many operations indicate a rather cumbersome process.
Mit der wachsenden Forderung nach elektrischen Leitern mit guten mechanischen und dielektrischen Eigenschaften und hoher Hitzebeständigkeit für den Einsatz auf Gebieten mit hohen mechanischen und thermischen Belastungen, z.B. in Schweißtransformatoren, Bahnmotoren, Anschlußlitzen an elektrischen Bauteilen hoher Temperatur, wächst der Bedarf an umsponnenen Drähten, insbesondere glasseidenumsponnenen Drähten, da die Glasseide als solche schon eine hohe Temperaturfestigkeit bewirkt.With the growing demand for electrical conductors with good mechanical and dielectric properties and high heat resistance for use in areas with high mechanical and thermal loads, e.g. in welding transformers, railway motors, connecting strands on electrical components of high temperature, the need for braided wires, in particular glass-braided wires, grows, since the glass silk as such already brings about a high temperature resistance.
Die o.g. Verfahrensschritte sind nun nicht nur sehr arbeits- und zeitaufwendig. Das Verfahren besitzt auch weitere Nachteile, die insbesondere durch die Verarbeitung stark lösungsmittelhaltiger Lacke verursacht werden.The above Process steps are now not only very laborious and time consuming. The process also has other disadvantages, which are caused in particular by the processing of paints which contain a large amount of solvents.
Die Nachteile sind:
- a) Belastung der Umwelt mit lösungsmittelhaltiger Abluft oder aber notwendige katalytische Verbrennung der Lösungsmittel.
- b) Mangelnde Haftung der Umspinnung auf dem Leitermaterial, da der im Verfahren beschriebene dicke Lackfilm nicht optimal ausgehärtet wird.
- c) Nicht blasenfreie Aushärtung des lösungsmittelhaltigen Lackfilms mit dem Ergebnis schlechter elektrischer Eigenschaftswerte, z.B. Isolationswiderstand, Durchschlagsfestigkeit und mangelnder Elastizität des Isolationsaufbaus.
- a) Pollution of the environment with solvent-containing exhaust air or the necessary catalytic combustion of the solvent.
- b) Insufficient adhesion of the encapsulation on the conductor material, since the thick paint film described in the process is not optimally cured.
- c) Not bubble-free curing of the solvent-based paint film with the result of poor electrical property values, for example insulation resistance, dielectric strength and inadequate elasticity of the insulation structure.
Aus der EP-A-17 062 ist es bekannt, isolierte Wickeldrähte aus Kupfer in einem Extrusionsverfahren mit amorphen Polyethersulfonen zu beschichten.From EP-A-17 062 it is known to coat insulated copper winding wires in an extrusion process with amorphous polyether sulfones.
Ebenfalls seit längerer Zeit bekannt ist die Beschichtung von Kupfer- oder Aluminiumleitern mit Thermoplasten im Extrusionsverfahren. Dabei wird von dem sogenannten Schlauchspritzverfahren Gebrauch gemacht, d.h. es wird in einem ersten Arbeitsgang ein Schlauch aus dem thermoplastischen Material um den Leiter gespritzt, der anschließend in einem zweiten Arbeitsgang durch Verstrecken auf den Leiter aufgeschrumpft wird. Das wird dadurch erreicht, daß die Abzugsgeschwindigkeit des Leiters größer ist als die Ausspritzgeschwindigkeit des Schlauches. Die Schichtstärke wird dabei allein durch die Geschwindigkeit geregelt.The coating of copper or aluminum conductors with thermoplastics in the extrusion process has also been known for a long time. Use is made of the so-called 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.
In der DE-A-26 38 763 wird erstmals die Herstellung von Wickeldrähten durch Extrusion von thermoplastischen Polykondensaten in einem Arbeitsgang ohne Nachbehandlung, wie Verstrecken, und in einer Schichtstärke möglich, die der Norm DIN 46435 entspricht. Die Schichtstärke wird dabei durch das Düsensystem bestimmt. Als Beschichtungsmaterial werden lösungsmittelfreie teilkristalline, thermoplastische Polykondensate mit einem Kristallitschmelzpunkt oberhalb 170°C eingesetzt.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.
Der Erfindung liegt die Aufgabe zugrunde, das gattungsbildende Verfahren dahingehend zu verbessern, daß ein vereinfachtes Verfahren zur Impragnierung und Beschichtung umsponnener Drähte und Litzen geschaffen wird, das neben einer vereinfachten Verfahrensführung eine höhere Produktivität aufweist und die Verfestigung und Haftung zum elektrischen Leiter verbessert.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.
Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object on which the invention is based is achieved by the teaching of the main claim.
Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen erläutert.Advantageous embodiments of the invention are explained in the subclaims.
Mit der Erfindung wird die bekannte Extrusionsbeschichtung mit teilkristallinen oder amorphen thermoplastischen Polykondensaten für die Imprägnierung umsponnener Drähte und Litzen eingesetzt, was folgende Vorteile bietet:
- a) Es sind nicht die sich mehrfach wiederholenden Lackier- und Härtungsprozesse erforderlich, sondern die ein- oder mehrfach umsponnenen Blankleiter, Lackdrähte oder Litzen werden in einem einzigen Arbeitsgang imprägniert und dadurch verfestigt.
- b) Das Verfahren ist aber nicht nur sehr wirtschaftlich, sondern durch den Einsatz der lösungsmittelfreien Thermoplaste auch umweltfreundlich.
- c) Als umsponnene Drähte und Litzen können solche eingesetzt werden, die aus im Lackier- oder im Extrusionsverfahren beschichteten Wickeldrähten erhalten worden sind.
- d) Im Gegensatz zu der Lackimprägnierung kann flammwidrig eingestelltes Beschichtungsmaterial eingesetzt werden. Flammwidrige Imprägnierlacke sind bisher nicht bekannt geworden.
- e) Die druckimprägnierten und beschichteten umsponnenen Drähte und Litzen zeichnen sich wohl infolge der Druckimprägnierung in der Düse durch eine verbesserte Einbettung der einzelnen, die Umspinnung aufbauenden Fasern und eine bessere Haftung des Isolationsaufbaus auf dem Leiter sowie auch durch eine verbesserte Elastizität aus.
- a) The repetitive repeating painting and hardening processes are not necessary, but the single or multiple wound blank conductors, enamelled wires or strands are impregnated in a single operation and thereby solidified.
- b) The process is not only very economical, but also environmentally friendly through the use of solvent-free thermoplastics.
- c) Wound wires and strands can be used which have been obtained from winding wires coated in the coating or extrusion process.
- d) In contrast to the paint impregnation, flame-retardant coating material can be used. Flame-retardant impregnation paints have so far not become known.
- e) Due to the pressure impregnation in the nozzle, the pressure-impregnated and coated wound wires and strands are characterized by improved embedding of the individual fibers that form the spinning and better adhesion of the insulation structure to the conductor and also by improved elasticity.
Als thermoplastisches Material für die Druckimprägnierung können bekannte thermoplastische Polykondensate eingesetzt werden, z.B. die folgenden teilkristallinen Polykondensate: lineare aromatische Polyester. wie Polyethylenterephthalat, ggf. auch mit Titandioxid gefüllt, lineare aliphatische oder aromatische Polyamide, Polyphenylensulfid, die Kristallitschmelzpunkte oberhalb 170°C besitzen, sowie Polyetherketone und araliphatische Polyamide mit Kristallitschmelzpunkten von mindestens 280°C und die amorphen Polyethersulfone.Known 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.
Als flammwidrig eingestellte thermoplastische Polykondensate können solche eingesetzt werden, die nach den für die Branschutzausrüstung bekannten Verfahren mit Halogenverbindungen, auch in Kombination mit Phosphorverbindungen, flammwidrig gemacht wurden, z.B. Polyethylenterephthalat mit bromiertem Oligostyrol oder mit polybromiertem Diphenylether oder mit Hexabromphenyl und Triphenylphosphinoxid. Es sei bemerkt, daß die Polyethersulfone keine Zusätze benötigen, da sie an sich flammwirdrig sind (n. Underwriters Lab. Test 94-VO).The flame-retardant 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).
Das Drahtmaterial für die Druckimprägnierung umfaßt sowohl Blank- als auch Lackdrähte und extrusionsbeschichtete Wickeldrähte in Form von Rund- und Profildrähten und Litzen, die mit den zur Umspinnung bekannten verschiedenartigen Isolierstoffen, wie z.B. Baumwoll-, Seiden-, Acetat- oder Polyamidgarn, umsponnen worden sind, bevorzugt aber solche, bei denen als Umspinnungsmaterial die eine gute Grundlage für thermisch beständige Isolierungen bildende Glasseide verwendet wurde.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.
Die druckimprägnierten umsponnenen Drähte und Litzen haben ihre Einsatzgebiete überall dort, wo hohe mechanische und thermische Anforderungen gestellt werden, d.h. den üblichen Einsatzgebieten für lackgebundene umsponnene Drähte und Litzen.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.
In den folgenden Beispielen werden die Verarbeitungsbedingungen für ein- oder mehrfach umsponnene Drähte und gefüllte oder ungefüllte thermoplastische Polykondensate bei Benutzung der in der Schweizer Patentanmeldung CH 8446/76 beschriebenen Extrusionsvorrichtung angegeben.The following examples show the processing conditions for single or multiple wound wires and filled or unfilled thermoplastic polycondensates when using the extrusion device described in Swiss patent application CH 8446/76.
In den Beispielen 1 bis 4 kam ein 1 L- oder ein 2 L- Wickeldraht, der durch Beschichtung mit einem mit 8% Titandioxid gefülltem Polyethylenterephthalat im Extrusionsverfahren hergestellt worden war und dann anschließend mit Glasseide einfach oder zweifach umsponnen wurde, zum Einsatz. Er durchlief zunächst eine Vorheizstrecke und nach Passieren der Beschichtungszone im Extruderkopf eine Abstreiferdüse zur Regulierung der Schichtstärke. Anschließend passierte der druckimprägnierte Draht eine Kühlstrecke und wurde aufgespult.In Examples 1 to 4, 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.
Die angegebenen Extrudertemperaturen beziehen sich jeweils auf die Strecke vom Einlauf bis zur Düse, wobei die drei letzten Temperaturangaben für das Düsensystem gelten.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.
Folgender umsponnener Kupferdraht wurde eingesetzt:
Imprägnierungs- und Beschichtungsmaterial:
- Mit 8% Titandioxid gefülltes Polyethylenterephthalat.
- Polyethylene terephthalate filled with 8% titanium dioxide.
Verarbeitungsbedingungen:
Einqesetzter Kupferdraht:
Imprägnierungs- und Beschichtungsmaterial:
- Polyethylenterephthalat, ungefüllt.
- Polyethylene terephthalate, unfilled.
Verarbeitungsbedingungen:
Eingesetzter Kupferdraht:
Imprägnierungs- und Beschichtungsmaterial:
- mit 8% Titandioxid gefülltes Polyethylenterephthalat Verarbeitungsbedingungen:
- Polyethylene terephthalate filled with 8% titanium dioxide Processing conditions:
Eingesetzter Kupferdraht:
Imprägnierungs- und Beschichtungsmaterial:
- Polyethylenterephthalat, ungefüllt Verarbeitungsbedingungen:
- Polyethylene terephthalate, unfilled Processing conditions:
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT82110490T ATE18314T1 (en) | 1981-11-19 | 1982-11-13 | PROCESS FOR IMPREGNATION OF BRAIDED WIRE AND STRANDS BY EXTRUSION OF THERMOPLASTICS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3145918 | 1981-11-19 | ||
| DE19813145918 DE3145918A1 (en) | 1981-11-19 | 1981-11-19 | METHOD FOR IMPREGNATING STRAPPED WIRE WITH STRAND BY EXTRUSION OF THERMOPLASTICS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0080138A1 EP0080138A1 (en) | 1983-06-01 |
| EP0080138B1 true EP0080138B1 (en) | 1986-02-26 |
Family
ID=6146743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP82110490A Expired EP0080138B1 (en) | 1981-11-19 | 1982-11-13 | Method of impregnating spun-coated wires and stranded wires by extrusion of thermoplastics |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4590025A (en) |
| EP (1) | EP0080138B1 (en) |
| JP (1) | JPS58501973A (en) |
| AT (1) | ATE18314T1 (en) |
| BR (1) | BR8207940A (en) |
| DE (2) | DE3145918A1 (en) |
| WO (1) | WO1983001864A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05269726A (en) * | 1992-03-25 | 1993-10-19 | Mitsui Constr Co Ltd | Reinforcing material for structure of civil engineering structure |
| 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)
| 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 (en) * | 1973-01-18 | 1981-10-29 | ||
| JPS5411514B2 (en) * | 1973-03-01 | 1979-05-15 | ||
| US4172859A (en) * | 1975-05-23 | 1979-10-30 | E. I. Du Pont De Nemours And Company | Tough thermoplastic polyester compositions |
| CH616264A5 (en) * | 1976-07-01 | 1980-03-14 | Maillefer Sa | |
| CH612789A5 (en) * | 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 (en) * | 1977-12-03 | 1979-06-07 | Beck & Co Ag Dr | USE OF THERMOPLASTICS FOR THE MANUFACTURE OF INSULATED WINDING WIRES IN THE EXTRUSION PROCESS |
| JPS5910698B2 (en) * | 1978-05-18 | 1984-03-10 | 東洋紡績株式会社 | polyester composition |
| DE2911269C2 (en) * | 1979-03-22 | 1982-12-09 | Dr. Beck & Co Ag, 2000 Hamburg | Use of thermoplastics for the production of insulated winding wires in the extrusion process |
| DE2936795C2 (en) * | 1979-09-12 | 1982-12-09 | Dr. Beck & Co Ag, 2000 Hamburg | Process for the production of insulated winding wires by extrusion of thermoplastics |
| 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 |
-
1981
- 1981-11-19 DE DE19813145918 patent/DE3145918A1/en not_active Ceased
-
1982
- 1982-11-13 BR BR8207940A patent/BR8207940A/en not_active IP Right Cessation
- 1982-11-13 AT AT82110490T patent/ATE18314T1/en not_active IP Right Cessation
- 1982-11-13 DE DE8282110490T patent/DE3269476D1/en not_active Expired
- 1982-11-13 WO PCT/DE1982/000211 patent/WO1983001864A1/en unknown
- 1982-11-13 EP EP82110490A patent/EP0080138B1/en not_active Expired
- 1982-11-13 JP JP82503534A patent/JPS58501973A/en active Pending
-
1985
- 1985-04-16 US US06/722,770 patent/US4590025A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE18314T1 (en) | 1986-03-15 |
| WO1983001864A1 (en) | 1983-05-26 |
| DE3269476D1 (en) | 1986-04-03 |
| BR8207940A (en) | 1983-10-04 |
| DE3145918A1 (en) | 1983-05-26 |
| EP0080138A1 (en) | 1983-06-01 |
| JPS58501973A (en) | 1983-11-17 |
| US4590025A (en) | 1986-05-20 |
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