US3728424A - Method of making flat cables - Google Patents

Method of making flat cables Download PDF

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Publication number
US3728424A
US3728424A US00065563A US3728424DA US3728424A US 3728424 A US3728424 A US 3728424A US 00065563 A US00065563 A US 00065563A US 3728424D A US3728424D A US 3728424DA US 3728424 A US3728424 A US 3728424A
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Prior art keywords
temperature
cable
width
cooling
cooling zone
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US00065563A
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English (en)
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R Bauer
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International Business Machines Corp
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International Business Machines Corp
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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
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/156—Coating two or more articles simultaneously
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • 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
    • H01B7/08—Flat or ribbon cables
    • H01B7/0823—Parallel wires, incorporated in a flat insulating profile
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles

Definitions

  • This invention relates to a method of making flat cables, particularly a method of making flat electric cables in which conductors are coated with plastic by extrusion.
  • the insulation in the form of a hose is extruded onto the wires passing the extrusion die parallel to each other. Subsequently, at a reduced pressure in the space between the nozzle and the hose the insulation is applied to the conductors and bonded together.
  • the results obtained are not always perfect, which means that cavities result on the bonding surface between the conductors. Such cavities are undesirable, since the cable terminals thus produced are permeable to moisture, contaminants or soldering agents.
  • German Pat. No. 1,047,276 describes a method of automatically regulating the gauge and capacitance of plastics coated conductors.
  • the speed at which the conductor passes the screw press and the heating current for preheating the conductor are automatically and reciprocally adjusted as a function of the continuously meaprovided extends in the first place to the gauge and.
  • This method is used for coating individual conductors, preferably employing foam plastics.
  • the known method is not suitable for influencing the width of a flat cable, since the adjustment only to a limited degree to the width of the cable.
  • the above as well as other objects are obtained by extruding dielectric material in a plastic state onto a plurality of space conductors, then cooling the plastic material to a solid state in a controlled manner to control the dimensions of the cable and the desired spacing of conductors.
  • the plastic material is preferably noncrosslinked polyethylene and control of the size of the plastic mass is obtained by moving the encapsulated conductors through one or more cooling zones in a manner which controls the dimensions of the cable.
  • the temperature and/or the length of a first cooling zone and/or the temperature of the second cooling zone is/are so adjusted that the difference in the temperature of the flat cable entering the second cooling zone and the temperature of the second zone is increased as the width of the flat cable increases and is decreased as the width of the flat cable decreases.
  • FIG. 1 shows an embodiment of a flat cable manufactured in accordance with-the method of the invention
  • FIG. 2 illustrates an apparatus useable for practicing the method of the present invention
  • FIG. 3 shows certain details of an extrusion press useable in the apparatus shown in FIG. 2;
  • FIG. 4- shows details of a width measuring device useful in the apparatus shown in FIG. 2;
  • FIG. 5 illustrates width shrinkage of a flat cable during cooling
  • FIG. 6 is a chart showing how the width of the flat cable is influenced by the method in accordance with the'invention.
  • FIG. 1 is the cross-sectional view of a flat cable produced to the method in accordance with the invention.
  • the width of this cable is 29.2 mm and the gauge 0.7 mm.
  • Each of the 60 wires arranged side by side in the flat cable has a diameter of 0.18 mm.
  • the signal wires are identified by numeral 1.
  • One ground wire 2 each is arranged on both sides of a signal wire for screening the latter.
  • grooves 3 are formed in all those places on the cable surface where there are no wires.
  • polyethylene is used for plastics making the wires; also suitable for this purpose are polypropylene, polyethylene and polypropylene copolymerizates, polyvinyl chloride, silicone rubber or fluorinated ethylene propylene.
  • FIG. 2 shows an arrangement, by means of which the method in accordance with the invention is applied.
  • the wires and subsequently the flat cable pass the arrangement shown in FIG. 2 from left to right.
  • the wires for the flat cable are taken off the rollers 11 which are mounted in a pay-off frame 12.
  • the rear side of the pay-off frame 12 is provided with the same number of rollers as the front side, but the former rollers are not visible in FIG. 2.
  • each side of the pay-off frame 12 would have to be equipped with 30 rollers, of which, for the sake of simplicity, only a limited number is shown.
  • rollers 11 are continuously decelerated, preferably using a shoe brake.
  • wires 10 enter from the left the angle extrusion head 21 of an extrusion press 22.
  • An enlarged perspective view of the extrusion press is shown in FIG. 3 to render the function of this machine readily understandable.
  • the granulated plastics such as, for example, polyethylene, are fed into a funnel 23.
  • funnel 23 is provided with a fan 24 which takes in its operating air via a tube 25.
  • the air is discharged into funnel 23 via tube 27.
  • the preheated granulate is fed to the screw press.
  • the screw press consists of a heated hollow cylinder 28 in which the screw 29, transferring the plastic material in the direction of the die 21, rotates.
  • Screw 29 is driven by an electric motor of which only the covering is visible in the bottom part of the extruder. Heating, compression and friction of the granulate result in a compound which becomes increasingly plastic in the direction of the die 21
  • the die 21 employed is an angle extrusion head as is mostly used for coating wires.
  • a path 30, which forms the extension of the hollow cylinder 28, is split into two paths 31, '32 which are both deflected through an angle of 90 and which then from above and below converge in the direction of the wires 10 which are led in parallel to each other.
  • the wires are densely surrounded with plastic material.
  • nozzle 33 On the right output of angle extrusion head 21 nozzle 33 is arranged, the cross-section of which exceeds that of the finished cable by the shrinkage in volume (e.g. by about 10 percent with regard to the width and gauge). Longitudinal shrinkage of the flat cable is prevented by the wires.
  • the screw output which can be adjusted as a function of the number of revolutions of the screw, is chosen so that the plastic material leaves nozzle 33 at the same speed at which the wires 10 are taken off.
  • the plastic material upon leaving the nozzle has a temperature of about 200C.
  • the flat cable 34 After having left nozzle 33, the flat cable 34, which at that stage is still plastic, passes a first cooling zone 35 which is formed by the surrounding air. This cooling zone may be some 40 cm long.
  • a cooling tank 37 which preferably takes the form of a water cooling tank.
  • the cooling tank 37 comprises two cooling zones 38 and 39.
  • the water as it comes out of the main, is led to cooling zone 39 via an inlet tube 40.
  • the front part of cooling zone 39 is designed as an overflow.
  • the water overflowing from cooling zone 39 enters cooling zone 38.
  • the front part of cooling zone 38 is also provided with an overflow.
  • the water overflowing from this zone accumulates in basin 41 and is subsequently discharged via tube 42.
  • the temperature of cooling zone 38 is set to a nominal value.
  • the temperature of cooling zone 38 is, for example, C. This temperature is generated by means of a heating coil 44.
  • the water is agitated by means of a circulating unit 45 which consists of a motor-driven propeller.
  • the flat cable is guided by means of two rollers 46.
  • Cooling zone 39 is provided with three further rollers 47, of which the first one is so positioned in relation to the overflow that the flat cable is transferred to the second cooling zone 39 above the overflow.
  • the water in cooling zone 39 has the temperature at which it leaves the main. This temperature is not critical.
  • the flat cable is led out of cooling zone 39 through a foam plastic coated aperture 48, by means of which any water still adhering to the cable is wiped off.
  • a width measuring device 49 which takes the form of a feeler roll measuring unit.
  • the feeler roll measuring unit can be replaced by any other measuring device, such as, for example, a measuring device working to the pneumatic principle. Details of the width measuring device 49 are shown in FIG. 4.
  • the actualmeasuring device is arranged on a frame 50.
  • the flat cable passes between two rollers 51 and 52.
  • the two rollers are resiliently mounted, so that they are laterally moved by the lateral edges of flat cable 34. This lateral movement is transferred to pin 53 and can be indicated by means of a measuring instrument 54.
  • measuring instrument 54 indicates the width of the flat cable.
  • a circuit 55 is provided which converts the mechanical deflection of pin 53 into an electric signal on lines56.
  • pin 53 can be converted into an electric signal in one of several manners. So, for example, pin 53 can be employed to change the tap of a potentiometer, thus causing an electric current to be changed. Pin 53 can also be used to change the capacitance of a measuring bridge capacitor, whereby the change in capacitance affects a signal. If necessary, these signals can be amplified.
  • Devices for converting mechanical movements into electric signles are, for example, described in the book Control Engineers Handbook published by Truxal, McGraw Hill Book Company, Inc., 1958, chapter 17 Signal Transducers.
  • Lines 56 are connected to a regulating device 57, by means of which to the method in accordance with the invention, the heating voltage of the heating coil 43 is so regulated that as the width of the flat cable on the feeler roll measuring device 49 increases, the tempera ture of cooling zone 38 is reduced, while the temperature of cooling zone 38 is increased as the width on feeler roll measuring device 49 decreases.
  • the temperature of cooling zone 38 can also be set by hand. Manual adjustment of the temperature is effected in accordance with the deflection of the pointer indicator 54 on the feeler roll measuring device. How the temperature of cooling zone 38 affects the width of flat calbe 34 is described below by means of FIGS. 5 and 6.
  • a take-off 58 is arranged behind the feeler roll measuring device 49, which comprises two tractors 59 and 60.
  • the two tractors embodied by two rubber bands which revolve around two rollers each, are driven by an electric motor, not shown.
  • a coiling device 61 is provided behind the take-off 58.
  • the coiling device 61 is driven by means of an electric motor, not shown, which can be decelerated to standstill.
  • FIG. 5 is a plan view of the cable.
  • the amounts of shrinkage encountered are shown in exaggerated form.
  • the dotted lines 72 define the outer edge of an extruded plastic strip without wires. In the area of air cooling zone 35, cooling and shrinkage of this strip are relatively insignificant. Upon entering water cooling zone 38 at line 70, the plastic strip is cooled relatively intensely, which results in a bend at this line the material shrinks considerably. Depending upon the temperature of cooling zone 35, the plastic strip will shrink more or less heavily in this area. The total shrinkage of a plastic strip without longitudinal wires is invariably the same, irrespective of whether the temperature in cooling zone 35 is high or low. Beyond the straight line 71 the plastics are set, whereby it is negligible that freezing occurs over a wider area. Shrinkage beyond line 71 is almost excusively attributable to the coefficient of thermal expansion. I
  • the shrinkage of a flat cable is slightly different from that experienced with a plastic strip (dotted line 72).
  • the flat cable is designated by the unbroken line 73. It is readily recognizable that the shrinkage plot'is not bent at the entry to the second cooling zone, since the tensile stress of the wires prevent any abrupt change in width while the material is in a plastic state,
  • the diagram of FIG. 6 serves to explain in detail how the shrinkage of a plastic strip with and without wires proceeds and how the width B of an extruded flat cable is influenced by changing the temperature of the second cooling zone 38.
  • width B during cooling, is shown on the abscissa with respect to the spacing A from the nozzle outlet.
  • the three cooling zones, the first zone 35, the second 38, and the third 39, are defined in relation to each other by vertical lines 100, 101, and 102.
  • Plot section 103 shows how the width of the extruded plastic strip decreases in the first cooling zone, the air cooling zone 35.
  • the width of the platic strip decreases in accordance with the dotted plot 104. If the cooling water temperature of the second cooling zone 38 is lower than that of the first, say, for example, 50C, the reduction in width in cooling zone 38 proceeds in accordance with plot 105.
  • the straight line 100 the point where the plastic strips enter cooling basin 23, the width plot is bent.
  • Plots 104 and 105 are proportional to the amount of cooling. Points 108 and 109 are the freezing points. Beyond these points the plastics are set over their full cross-sectional area. In some areas setting occurs more rapidly.
  • shrinkage of the plastics is mainly governed by the coefficient of thermal expansion and only to a very limited degree by crystallization.
  • the degree of crystallization depends upon the temperature of cooling zone 38. Subsequent crystallization is encountered as long as one week after cooling, producing a negligible shrinkage of some 2 percent in the width and gauge of the material.
  • Straight line 101 defines the entry to cooling zone 39.
  • the temperature of this cooling zone is assumed to be 20C.
  • the width of the plastic strip proceeds along the dotted plot 106 if the temperature of cooling zone 38 is 80C and along plot 107 if the temperature is 50C. Plots 106 and 107 converge.
  • the plastic strip has a uniform width under identical environmental and material conditions, which is independent of how cooling is effected, i.e. in this case of whether the temperature of cooling zone 38 is 80 or broken lines.
  • the reduction in width of the flat cable proceeds parallel to the reduction in width of the plastic strip.
  • the width of the flat cable corresponds to plot 110 and after entry into the third cooling zone 39 to plot 11].
  • the width of a flat cable cooled to 50C in the second cooling zone 38 decreases beyond the freezing point according to plot 112 and in cooling zone 39 to plot 113.
  • Plots 110 and 111 are shifted downwards in relation to plots 104 and 106 and plots 112 and 113 with respect to plots 105 and 107. This is due to the wires being pressed together in cooling zone 38 during cooling, which results in the width of the flat cable, which is in a plastic state in cooling zone 35, being reduced.
  • the different widths in this area are represented by plots 114 and 115.
  • the reduction in width is more pronounced, the more intense the cooling in the second cooling zone 38, i.e. the more marked the bend at the straight line 100. Freezing points 116 and 117 of the flat cable are below freezing points 108 and 109 which apply to plastic strip.
  • cooling zone 38 The influence of the temperature of cooling zone 38 on the final width of the cable can also be readily physically explained by means of FIG. 6. While the actual nozzle outlet of the extruder in FIG. 6 is at abscissa 0, one can imagine a virtual nozzle in the area of the first cooling zone in which the flat cable is still in a plastic state. Assuming the virtual nozzle is located near the vertical 100. At this vertical the width 114 or 115 of the flatcable differs considerably, which is due to the wires being forced together by the varying amounts of shrinkage in the second cooling zone 38. This interaction produces an effect similar to that obtainable by a real nozzle with variable cross-section. These conditions, in particular the variations in temperature in the second cooling zone, are shown in exaggerated form in FIG. 6.
  • the cooling water temperatures in an arrangement according to the invention differ only slightly, for example, by 3C.
  • the temperature of the controlled cooling zone is about 80C, this value being accurately regulable within a tolerance of C.
  • the reduction in width of the cable in the area of cooling zone 35 is pronounced and the final dimensions of the cable are smaller, the more marked the bent of the cooling plot of a strip without wires is under similar cooling conditions above the freezing temperature.
  • the angle of this bent can also be influenced in a manner other than is described in the above example where the temperature of the second cooling zone, in which the plastics set, is changed.
  • the angle of the bent can also be altered by changing the length of the first cooling zone 35. This results in the temperature of the flat cable being changed upon entry into the second cooling zone 38.
  • the temperature of the flat cable upon entry into the second cooling zone can also be influenced by changing the temperature of the first cooling zone 35 (e. g. by altering the air temperature of the air flow). Finally, it is also possible to change these parameters simultaneously.
  • the invention is not only suitable for cooling systems consisting of air and water cooling zones, but may also be utilized for systems employing different cooling speeds before the freezing point of the plastics.
  • a method of making flat cables comprising moving a plurality of spaced coplanar wire elements through an extrusion device;
  • a method in accordance with claim 1 which further comprises passing said cable through a third cooling zone for cooling the flat cable to a final temperature approaching an external temperature;
  • plastic material is selected from the class of materials comprising polyethylene, polypropylene, copolymerizates of polyethylene and polypropylene, polyvinyl chloride, silicone rubber, or fluorinated ethylene propylene.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
US00065563A 1969-08-22 1970-08-19 Method of making flat cables Expired - Lifetime US3728424A (en)

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JP (1) JPS523472B1 (enrdf_load_stackoverflow)
CA (1) CA942023A (enrdf_load_stackoverflow)
DE (1) DE1942784B1 (enrdf_load_stackoverflow)
FR (1) FR2059618B1 (enrdf_load_stackoverflow)
GB (1) GB1313388A (enrdf_load_stackoverflow)
SE (1) SE358502B (enrdf_load_stackoverflow)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849192A (en) * 1972-05-12 1974-11-19 Gen Cable Corp Inc Method of applying and cooling low density polyethylene cable insulation
US3897187A (en) * 1971-11-15 1975-07-29 Greengate Cables Limited Apparatus for the continuous production of laminated electric conductors
US3993726A (en) * 1974-01-16 1976-11-23 Hercules Incorporated Methods of making continuous length reinforced plastic articles
US4025257A (en) * 1972-05-17 1977-05-24 Sekisui Kagaku Kogyo Kabushiki Kaisha Apparatus for continuously manufacturing an elongated reinforced shaped article
US4055526A (en) * 1974-03-29 1977-10-25 Shin Kiyokawa Planar heating element and production thereof
US4078111A (en) * 1976-01-06 1978-03-07 Ube Industries, Ltd. Process of extrusion-coating the central core with an insulator of high pressure-processed polyethylene
US4212612A (en) * 1979-07-05 1980-07-15 Western Electric Company, Inc. Apparatus for enclosing a plurality of conductors in a partitioned jacket
US4221756A (en) * 1978-09-15 1980-09-09 Western Electric Company, Incorporated Methods of enclosing a plurality of conductors in a partitioned jacket
US4277642A (en) * 1978-09-15 1981-07-07 Western Electric Company, Inc. Cordage having a plurality of conductors in a partitioned jacket
US4314958A (en) * 1980-07-22 1982-02-09 Phillips Petroleum Company Plastic pipe extrusion
US4500481A (en) * 1983-04-25 1985-02-19 At&T Technologies, Inc. Methods for controlling vinyl plastic extrudate
US4726750A (en) * 1985-02-26 1988-02-23 Siemens Aktiengesellschaft Device for double encasing a strand of material containing one or more waveguides
US4772435A (en) * 1984-12-14 1988-09-20 Maillefer S.A. Method of sheathing a fiber optic
US6232557B1 (en) * 1997-11-07 2001-05-15 Rockwell Technologies, Llc Network cable and modular connection for such a cable
US6403504B1 (en) 1984-03-15 2002-06-11 Cytec Technology Corp. Composite fiber blends
US6958102B2 (en) * 2000-02-23 2005-10-25 The Yokohama Rubber Co., Ltd. Method and system for producing unvulcanized-rubber/steel-wire composites
US20060131059A1 (en) * 2004-12-17 2006-06-22 Xu James J Multiconductor cable assemblies and methods of making multiconductor cable assemblies
US20090133896A1 (en) * 2007-11-27 2009-05-28 Kazunari Kosaka Multiconductor cable assembly and fabrication method therefor
US20100276180A1 (en) * 2004-12-17 2010-11-04 Sabic Innovative Plastics Ip B.V. Flexible poly(arylene ether) composition and articles thereof
US8362359B1 (en) * 2009-07-27 2013-01-29 Superior Essex Communications Lp Surface modified drop cable, method of making same, and drop cable assembly
US20140235094A1 (en) * 2013-02-19 2014-08-21 Wieland Electric Gmbh Electrical contact-making system
US20230102027A1 (en) * 2020-01-24 2023-03-30 Sikora Ag Device and method for determining the temperature of a tubular strand
CN119704531A (zh) * 2025-01-08 2025-03-28 镇江优凯电力科技有限公司 一种扁形电缆生产制造装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2735476C2 (de) * 1977-08-04 1985-10-31 Siemens AG, 1000 Berlin und 8000 München Verfahren und Vorrichtung zur Herstellung von Kabeln und Leitungen mit SZ-verseilten Verseilelementen
EP0012100A1 (de) * 1978-11-29 1980-06-11 Siemens Aktiengesellschaft Vieladrige Flachleitung mit Rundleitern
FR2631280A1 (fr) * 1988-05-16 1989-11-17 Microdia Sa Tete d'extrusion pour la fabrication d'un cable plat
FR2662011B1 (fr) * 1990-05-11 1995-03-31 Labinal Perfectionnements aux ensembles de conducteurs electriques en nappes.
DE10352773A1 (de) * 2003-11-12 2005-06-30 Siemens Ag Kontaktierung für einen Aktor und zugehöriges Herstellungsverfahren
CN104409176A (zh) * 2014-11-25 2015-03-11 韦江华 一种耐高温电缆电线的冷却设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369858A (en) * 1943-03-26 1945-02-20 Standard Telephones Cables Ltd Cable forming apparatus
DE1113728B (de) * 1959-02-27 1961-09-14 Siemens Ag Verfahren und Fertigungseinrichtung zur kontinuierlichen Erstellung von geklebten oder umspritzten Bandkabeln mit ausgeformten Loetoesen
US3082292A (en) * 1957-09-30 1963-03-19 Gore & Ass Multiconductor wiring strip
US3288895A (en) * 1963-03-13 1966-11-29 Bell Telephone Labor Inc Control of capacitance of individual wires of multiwire structure
US3295163A (en) * 1964-04-28 1967-01-03 Western Electric Co Strand cooling apparatus
US3300554A (en) * 1963-09-27 1967-01-24 Western Electric Co Method of making cellular articles
GB1137626A (en) * 1965-07-09 1968-12-27 Phelps Dodge Copper Peroducts Improvements in or relating to the manufacture of electrical cable insulated with a synthetic plastics material

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1000484A (fr) * 1946-02-12 1952-02-12 Comp Generale Electricite Installation pour le refroidissement sous pression d'objets de grande longueur comportant des matières synthétiques thermoplastiques

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2369858A (en) * 1943-03-26 1945-02-20 Standard Telephones Cables Ltd Cable forming apparatus
US3082292A (en) * 1957-09-30 1963-03-19 Gore & Ass Multiconductor wiring strip
DE1113728B (de) * 1959-02-27 1961-09-14 Siemens Ag Verfahren und Fertigungseinrichtung zur kontinuierlichen Erstellung von geklebten oder umspritzten Bandkabeln mit ausgeformten Loetoesen
US3288895A (en) * 1963-03-13 1966-11-29 Bell Telephone Labor Inc Control of capacitance of individual wires of multiwire structure
US3300554A (en) * 1963-09-27 1967-01-24 Western Electric Co Method of making cellular articles
US3295163A (en) * 1964-04-28 1967-01-03 Western Electric Co Strand cooling apparatus
GB1137626A (en) * 1965-07-09 1968-12-27 Phelps Dodge Copper Peroducts Improvements in or relating to the manufacture of electrical cable insulated with a synthetic plastics material

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897187A (en) * 1971-11-15 1975-07-29 Greengate Cables Limited Apparatus for the continuous production of laminated electric conductors
US3849192A (en) * 1972-05-12 1974-11-19 Gen Cable Corp Inc Method of applying and cooling low density polyethylene cable insulation
US4025257A (en) * 1972-05-17 1977-05-24 Sekisui Kagaku Kogyo Kabushiki Kaisha Apparatus for continuously manufacturing an elongated reinforced shaped article
US3993726A (en) * 1974-01-16 1976-11-23 Hercules Incorporated Methods of making continuous length reinforced plastic articles
US4055526A (en) * 1974-03-29 1977-10-25 Shin Kiyokawa Planar heating element and production thereof
US4078111A (en) * 1976-01-06 1978-03-07 Ube Industries, Ltd. Process of extrusion-coating the central core with an insulator of high pressure-processed polyethylene
US4277642A (en) * 1978-09-15 1981-07-07 Western Electric Company, Inc. Cordage having a plurality of conductors in a partitioned jacket
US4221756A (en) * 1978-09-15 1980-09-09 Western Electric Company, Incorporated Methods of enclosing a plurality of conductors in a partitioned jacket
US4212612A (en) * 1979-07-05 1980-07-15 Western Electric Company, Inc. Apparatus for enclosing a plurality of conductors in a partitioned jacket
US4314958A (en) * 1980-07-22 1982-02-09 Phillips Petroleum Company Plastic pipe extrusion
US4500481A (en) * 1983-04-25 1985-02-19 At&T Technologies, Inc. Methods for controlling vinyl plastic extrudate
US6403504B1 (en) 1984-03-15 2002-06-11 Cytec Technology Corp. Composite fiber blends
US4772435A (en) * 1984-12-14 1988-09-20 Maillefer S.A. Method of sheathing a fiber optic
US4893998A (en) * 1984-12-14 1990-01-16 Maillefer S.A. Installation for producing a fiber optic cable component
US4726750A (en) * 1985-02-26 1988-02-23 Siemens Aktiengesellschaft Device for double encasing a strand of material containing one or more waveguides
US6232557B1 (en) * 1997-11-07 2001-05-15 Rockwell Technologies, Llc Network cable and modular connection for such a cable
US6958102B2 (en) * 2000-02-23 2005-10-25 The Yokohama Rubber Co., Ltd. Method and system for producing unvulcanized-rubber/steel-wire composites
US7828920B2 (en) 2004-12-17 2010-11-09 Sabic Innovative Plastics Ip B.V. Method of making multiconductor cable assemblies
US7332677B2 (en) 2004-12-17 2008-02-19 General Electric Company Multiconductor cable assemblies and methods of making multiconductor cable assemblies
US20080142145A1 (en) * 2004-12-17 2008-06-19 Xu James J Method of making multiconductor cable assemblies
US20100276180A1 (en) * 2004-12-17 2010-11-04 Sabic Innovative Plastics Ip B.V. Flexible poly(arylene ether) composition and articles thereof
US20060131059A1 (en) * 2004-12-17 2006-06-22 Xu James J Multiconductor cable assemblies and methods of making multiconductor cable assemblies
US8563131B2 (en) 2004-12-17 2013-10-22 Sabic Innovative Plastics Ip B.V. Flexible poly(arylene ether) composition and articles thereof
US20090133896A1 (en) * 2007-11-27 2009-05-28 Kazunari Kosaka Multiconductor cable assembly and fabrication method therefor
US7989701B2 (en) 2007-11-27 2011-08-02 Sabic Innovative Plastics Ip B.V. Multiconductor cable assembly and fabrication method therefor
US8362359B1 (en) * 2009-07-27 2013-01-29 Superior Essex Communications Lp Surface modified drop cable, method of making same, and drop cable assembly
US20140235094A1 (en) * 2013-02-19 2014-08-21 Wieland Electric Gmbh Electrical contact-making system
US9450314B2 (en) * 2013-02-19 2016-09-20 Wieland Electric Gmbh Electrical contact-making system
US20230102027A1 (en) * 2020-01-24 2023-03-30 Sikora Ag Device and method for determining the temperature of a tubular strand
CN119704531A (zh) * 2025-01-08 2025-03-28 镇江优凯电力科技有限公司 一种扁形电缆生产制造装置

Also Published As

Publication number Publication date
CA942023A (en) 1974-02-19
FR2059618B1 (enrdf_load_stackoverflow) 1974-09-20
FR2059618A1 (enrdf_load_stackoverflow) 1971-06-04
GB1313388A (en) 1973-04-11
SE358502B (enrdf_load_stackoverflow) 1973-07-30
JPS523472B1 (enrdf_load_stackoverflow) 1977-01-28
DE1942784B1 (de) 1971-02-04

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