DE2215091A1 - Method and apparatus for producing coaxial transmission media - Google Patents

Description

Patent attorney
Dip! .-! Ng. Next Jackish

7 Stuttgart N, Menzelstrasse 40

Western Electric Company Inc. 27 * MSn-1972

195 Broadway "

Few York, NY 1OOO? / USA A 32 923

A tandem production line is used to convert raw material into a finished high-frequency coaxial cable with a substantially stretch-free, corrugated, laminated outer Line in which the corrugations are symmetrical and uniform in size and not too undesirable Changes in the impedance of the coaxial cable contribute so that the coaxial cable has the desired physical and electrical characteristics with reduced possibility for high voltage breakdowns between the inner and outer lines as well as relatively low structural recirculation losses owns.

It is extreme in high frequency transmission systems such as those using coaxial cables as lines important to maintain the matched impedance between all components. In other words, the impedances must a coaxial unit precisely to the impedance of a Relay amplifier or other terminating units to which the coaxial cable is connected »The impedance

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© FHQINAL INSfEGTBD

a coaxial unit is closely related to the ratio between the diameter of the χηηβεη line and the diameter the outside line.

Inner lines of coaxial units are mostly drawn from Made of copper wire, the diameter of which can be adjusted very precisely. The outer lines, on the other hand, are off Manufactured metal pipes, which are mostly made from flat metallic strips. Hence it becomes extreme In order to create an effective transmission system, it is important that the diameter of the tubular outer conductor is very precise and that largely any mechanical stresses are eliminated within the tubular structure, which one Could cause warping of the tubular line after its manufacture.

In the production of coaxial cables with corrugated outer conductors made of steel, copper and polymer laminates, this is Laminate formed by heating the three components while keeping them constantly under pressure in a rolling process will. Because the two metallic components, steel and copper, have different coefficients of thermal expansion have, the laminated material tends to curl after cooling to ambient temperature. the Manufacture of a tubular outer line from a laminate with such a corrugation results in unfavorable internal mechanicals Tensions that remain in the external line »

Another case where there is an unfavorable stress concentration forms within the external line, results when the laminated material is provided with rollers Wave device is corrugated. Shaft devices for the production of systems, for example according to the USA patent 3 399 44-9 use powered corrugating rollers to make the pulling laminated material into position between the rollers when the rollers are rotated.

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Corrugated material emerging from such a corrugation device , very often shows a distorted shape in the Tooth profile. This shows a sawtooth-shaped appearance instead of a symmetrical shape, this asymmetry being unfavorable introduces non-uniform stresses in the external line.

Another reason for unfavorable tension within the Outer conduit results when corrugated laminated material is brought into a tubular shape of precise dimensions which is required in the external conduit, the joint being connected by soldering or welding. In the Formation of any metallic structure into a curved one Shape, for example a cross-section of the ear, each stage of manufacture has a certain degree of its own "spring-back effect" of the metal goes hand in hand »When a pipe is connected at its joint, as in the present case of a coaxial cable applies, and the own rebound effect is not let loose is, the "spring back" force is maintained as internal tension within the closed tubular outer conduit «,

Another factor which adversely affects the constancy of the diameter of the outer conduit is expansion of the corrugations after they have been pressed into the laminated material of the outer wall. Such a stretching of the corrugations occurs when there is an error in the coordination of the speeds of a friction roller, which is a finished one Coaxial unit pulls out, and there is a system that drives the rollers of a Formadage that are used to form the Pipe-shaped external line is used »

When the molding line is in speed behind the friction roller The difference between the linear speeds of the structural unit is absorbed by an expansion of the coaxial units. When the coaxial unit is stretched, the total height of the l / elations is reduced, with a decrease in the Diameter of the eoaxial unit and a connected thereto

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Change in the characteristic impedance of the unit occur.

In assembling a coaxial unit of the type described, it is extremely important to understand the internal components of the coaxial unit to be kept free from contamination, for example from oil or dust, because of the presence of such "contamination" there is an increased probability of high voltage breakdowns. About the degree of pollution inside the coaxial unit To reduce this, it is common practice to thoroughly clean the central conduit before inserting it into the coaxial unit.

According to a previous method in the field of the production of coaxial cables, specific wires were used for the inner lines subjected to a meticulous thorough cleaning, so that all lubricant residues applied during wire drawing from the surface the wire has been removed; this cleaning was done in one of the actual manufacture of the coaxial cable assembly separate process. As a result of using separate operations, the wire for the center lines was wound on spools and passed over various guide rollers before being insulated with washers and finally to a coaxial cable was put together. As a result of scrupulously clean cleaning, which keeps the wire surface free of lubricant and following abrasive action between the wire surface and adjacent sections of the wire on spools and the various Leaves guide wheels, over which the wire was guided, developed a certain wear of the Wire, which causes sharp splinters and / or flakes of copper to be present on the wire surface at certain times. The sharp splinters and / or flakes of copper are places where there is an increased likelihood of a high voltage breakdown is present between the inner line and the outer line of the Koaxialkabele.inheit. These can also be splinters and / or flakes contribute to the generation of a corona discharge if a voltage is below the breakdown voltage is placed on the coaxial cable unit. The presence of a

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Corona discharge at or near those made of polyethylene Insulating washers leads to the formation of oxalic acid, which may the polyethylene disc oxidizes and causes a high voltage breakdown leads o

Another problem that arises in the manufacture of coaxial cables is the contiguous application of Insulating washers on the center line at high speeds. According to the state of the art, the disks of the central lines in a separate work process compared to the production of the coaxial line taking place in a manufacturing section punched. The punched disks are packed into a funnel and fed to an inserter by means of a vibrating and gravity feed systems. The presence of a static charge on the surface of the wafers often results in the wafers not advancing properly so that there are gaps along the center line form where no washers are attached; these spaces reveal themselves as undesirable discontinuities the impedance.

The object of the invention is to create a coaxial cable with corrugated outer line, the corrugations being symmetrical and similar in shape, so that their presence is not too contributes to an unfavorable change in the impedance of the coaxial cable. .

A process for the production of coaxial transmission media With certain features of the present invention, processes may include: making a laminate from Materials with different coefficients of thermal expansion, which are bonded with a temperature-sensitive adhesive be, being a certain three-dimensional ^ curvature is transferred to each of the fabrics of the laminate - while the adhesive is flowing and the fabrics are on a certain level elevated temperature above ambient temperature while the material is cooled to ambient temperature

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to achieve, wherein the three-dimensional curvature is removed, so that a flat and substantially tension-free Laminate results.

According to the invention, successive processes are carried out on raw materials in order to convert them into a finished one To transform coaxial cables of desired physical and electrical characteristics. A copper strip and a steel strip are fed into assigned collectors by infeed pressure rollers. Exit pressure rollers pull the tapes out of the collectors and convey them to a degreasing facility. When the strips leave the degreaser, the copper strip arrives over it, while the steel strip goes underneath and under a copolymer adhesive glue application station. The tape is pulled through a collector with a pressure roller system controlled by a "dancer" which is designed in such a way that that the tension of the outgoing strip is nearly cheesecloth. A minimum tension in the copolymer strip is required because its tensile strength is practically zero at the coating temperatures. The copper strip is preheated, after which the copper strip, the copolymer strip and the steel strip in one adjustable stratification guide. The stratification of the three elements is achieved by making the Copper, copolymer and steel existing sandwich structures are fed through three pairs of heated rollers. The last pair of heated rollers are driven so that the laminate is pulled through the guide under the rollers. Soft copper wire is used in a single tool wire drawing machine guided around the center line to manufacture. The central line is drawn to a diameter of 2.57 mm in an Ereon AtmoSphere by inserting the The drawing tool is vibrated with ultrasound to form a clean, smooth central pipe. The drawn central line is passed through the disc application device where Polyethylene washers are pushed onto the central line at a distance of about 25 mm. The laminate runs underneath the Wire drawing machine as well as the disk application device to a pair of drawing rollers controlled by means of a "dancer" for pre-

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thrust of the laminate to the corrugating device without backward-facing " Tension. The laminate is corrugated with a special irofil in order to achieve the required material absorption, flexibility and To create ring strength. The corrugation profile of the laminated sandwich structure is made so that the overlapping side is interlocked with the opposite side. The corrugated laminate and the washer insulated center wire are in a pipe forming machine was introduced where the corrugated laminate is formed around the central conduit isolated by the washers. The pipe then has the correct dimensions in terms of a correct impedance, after which the overlap seam is soldered.

The invention is explained in more detail below with reference to the drawings. Show it:

Fig. 1 shows an embodiment of a coaxial cable according to the invention with a corrugated, laminated outer line, in a partial perspective view,

Fig. 2 shows an embodiment of an inventive device for manufacturing the coaxial cable of FIG. Λ, in schematic side view deashers

FIG. 3 is a component part of the device according to FIG Alignment and stacking unit in an enlarged side view,

Fig. 4- A heating stand, which is part of the alignment and lamellar unit of Fig. 3 forms, in side view,

Fig. 5 shows the heating stand according to Fig. 4- in a view from the front,

6 with the device according to FIG. 1 at ambient temperature Laminate to be produced in enlarged cross-section "representation,

Fig. 7 shows the laminate according to FIG. 6 .in the heated state and Ί.χι

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- 8 cross-sectional view,

Pig. 8 the laminate according to FIGS. 6, 7 in a curved and heated Condition as well as in cross-section,

Pig. 9 is a part of the Pig device. 1 educational Wire drawing machine in an enlarged side view and partly in a broken view,

FIG. 10 shows a component part of the device according to FIG. 1 Disk application device in an enlarged sectional view,

FIG. 11 shows a section along the line 11-11 of FIG. 10, Figure 12 is a section along line 12-12 of Pig. 10, FIG. 13 a section along the line 13 - 13 of FIG. 10,

Figure 14 is a cam diagram of a drum cam of the disc applicator according to Fig. 10,

15 shows a part of the device according to FIG. forming equipment in an enlarged side view,

16 shows a part of a coaxial line according to the invention forming symmetrical laminated and corrugated outer pipe in enlarged cross-sectional view,

FIG. 17 is a view similar to FIG. 16, but of a corrugated one State-of-the-art management,

18 shows an enlarged plan view of a soldering machine forming part of the device according to FIG.

Pig. 19 shows the forming and soldering machine according to FIG. 18 in an enlarged view Side view,

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Pig. 20 shows a form and roll stand of the form and soldering machine according to FIG 19 in a view from the front or as a section along the line 20-20 of FIG. - ■.-...

FIG. 21 shows the form rolling stand according to FIG. 20 as a longitudinal section the line 21-21 of Fig. 20-,

22 shows the device according to FIG. 21 in a contrast different operating positions,

Fig. 2J the path of movement of a laminate when this to a Outer line of a coaxial cable is formed, according to certain features of the invention,

Figure 24 illustrates a mathematical method of finding a desired mold radius of a roll forming apparatus for molding flat strips in cylindrical tubes with certain desired Characteristic values.

According to FIG. 1 ″, a coaxial cable 50 comprises an inner line 52 as well as several insulating washers 54 »54, which the inner line Hold 52 centrally within an outer pipeline 56. One Shield 58 is formed around the outer lead 56 and on the outer line with a film 60 of adhesive polymer " material layered. The outer line 56 and the shield 58 are formed into a tube, the outer line being a has partially butted edge 62, while the shield has a soldered overlapped edge 64 ..

Fig. 2 shows a production line 66 for continuous Manufacture of the coaxial cable 50. The production line 66 includes a feed point 68 for a copper strip 69, which forms the outer line 56, a feed point '/ 0 for a steel strip 711 which forms the shield 58, and a feed point 72 for the IClebcinibbel polymer film 60, which is used for connection of the copper band 69 with the steel band 71 is used to form a laminate 75. The substances of each feed point

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68, 70, 72 are guided into an alignment and lamination unit 74. The unit 7 ^ is used to denote by the unit to heat and stack up the guided materials. A wire feed point 76 is used to denote a (not illustrated) To lead wire to a wire drawing machine 78, which the this brings the supplied wire into the dimensions and in the shape that are required for the inner line 52 * The inner line 52 runs from the wire drawing machine 78 to a washer application device 80, which the insulating washers 54-54 the inner line 52 with a desired distance.

The composite external line 56, the film 60 and the Ab- ■ shield 58 are through a shaft device 81 and in a Pipe forming and soldering machine 82 together with the inner line and the insulating washers 54, 5 ^ out .. Inside the Rohrformund Soldering machine, the various elements of the coaxial cable 50 are assembled; a main friction roller 84 is used, to pull the finished coaxial cable out of the machine 82 « A receptacle 86 is used to hold the completed To wind coaxial cable 50 on a supply reel 88.

According to FIG. 3, the copper strip 69 and the steel ^strip 71 are brought together in an alignment device 90 which is part of the alignment and layering unit 74. The alignment unit 90 aligns the fabrics in accordance with the description of French patent specification 1 503 017.

If parts of the aligned copper strip 69, the steel strip 71 and the film 90 made of adhesive plastic material depart from the alignment device 90, they arrive at the first of three identical heating stations 110, 110.

According to Fi ^ u 4, 5 each of the heating stations 110, 110 is with one Main frame 112 is provided. An upper heating roller 114 and a lower heating roller 116 are rotatable in conventional bearings 118, appropriate. The bearings 118, 118, which are the upper Kiz roll

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store are slidably received in bearing mountings 120, 120; the vertical position of the sliding bearing mounts can be changed by operating air cylinders 122, 122, which are attached to the main frame 112. When the pistons of the air cylinders 122, 122 are retracted, a mutual release of the heated rollers 114-116; the union of the copper band 69, the steel band 71 and the film 60 made of adhesive plastic material can easily be placed between the two rollers «when the pistons of the air cylinders 122, 122 are extended are, the rollers 114,. 116 with the belts 69, 71 with a desired force in engagement, which through Regulation of the air pressure within the air cylinder is determined ο ■.

Each of the heated rollers 114, 114 and 116, 116 includes a stainless steel body portion 124, 125, respectively, with at least one 32 surface treatment on the outer peripheral surface of the body part, 69 softer one of the ligaments? 71 touches “Each of the parts of the body 124, 126 is provided with six continuous cylindrical passages 128, 128, which have sufficient dimensions, to accommodate conventional heating inserts 130, 130. The heating inserts 130, 130 are sufficient to achieve the desired heating achieve if they are designed for 230 watts »lines 132, 132 run from each of the heating inserts 130, I30 to usual Slip ring assemblies 134, 136, which on shafts 138, 140 of the Rollers 114 and “116 are arranged” each of the rollers 114, 116 is provided with spur gears 142 and 144, which are mounted concentrically on it. * The spur gears 142, 144 synchronize the speed of rotation of the rollers 114 ·, 116 so that a Differential slip is avoided by the rollers. A common one Drive motor (not illustrated) can be used to drive the lower heated roller 116 if required is to get the correct stretch control within the Belts 69, 71 and the film 60 to maintain »A synchronization between the drive motor (not illustrated) and the friction roller 34 can be achieved by (not shown) control elements be achieved",

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From Fig. 3 it can be seen that the heating of the Fabrics in three. Stages is achieved, each successive process step in a successive Heating station 110 is carried out within the group of heating stations. After parts of the material to be stacked from the the last of the heating elements 110, 110 emerge, the substances are at a sufficiently high temperature so that the PiIm 60 of the plastic adhesive is softened to the desired state and that the surface state of the copper tape 69 or Steel strip 71 for achieving a correct adhesion between the copper and steel tape with the film of plastic adhesive in between.

Because copper and steel have significantly different coefficients of thermal expansion have the case of FIG. 6. The steel band 71 and the copper band 69 can when brought together have a desired orientation in the cold state, which is indicated by imaginary recording marks Ac, As, Bc, Bs, Cc, Cs can be represented. If, in the example of FIG. 6, there is a heating, the difference between the coefficients of thermal expansion copper and steel are present, bring about a separation of the imaginary recording marks, as illustrated in FIG. Here the Recording marks Bc, Bs are still in alignment as they represent the central portion of the tape 69 and 71, respectively, while the recording mark Ac is offset from the recording mark As; similar is the record mark Cc is offset from the recording mark Cs.

When the film 60 of plastic adhesive bonds between the tapes 69, 71 while the recording marks Ac and Cc are apart from the markings As and Cs, then there is a final cooling on the 6 shows a heat-shear stressing process within the film 60. Since the film 60 is basically made of polyethylene exists, the presence of shear stress indicates a tendency

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- 13 - ■■. · ■. ■ -. '■

for cold flow of the adhesive material until the shear stress in the essentially eliminated is »A reduction in stress as a result of a cold flow process can persist over a long period of time extend, possibly over years, with the result that a change in the exposure value in the. conductive state of Coaxial cable 50 also occurs = such a change in the The load value of the conductive part of the coaxial cable 50 can very well have an unfavorable influence on the constancy of the transmission characteristics of the coaxial cable. Such inconsistency is undesirable in systems where a great deal of care is taken for the matching of the impedance of the transmission unit to the impedance of the various relay amplifiers is expended, such as they are applied in the system. A gradual change in the load value can contribute to severely mismatched impedances.

It is possible to produce coaxial cables 50, 50 in which the Film 60 is essentially stress-free, even at the time of manufacture. This can be achieved by performing a corrective spherical curvature on both copper band 69 and steel band 71 during the occurrence of the joint is transferred between the steel and copper tape * According to Fig. can eliminate the mismatch between the recording marks Ac, As as well as between the recording marks Cc, Cs when the correct radius of curvature is on the copper or Steel band 69 or 71 is transferred.

From Fig. 3 it can be seen that such a spherical curvature is transferred to the copper and steel strip 69 and 71, respectively can in that parts of the strips are guided over a roller 46, which is designed as a segment part of a ball. the Bands 69, 71 as well as the film 60 are turned 90 ° around the Curvature of roller 146 passed from a horizontal to a vertical path »The radius of curvature of the spherical portion of the Roll 146, the copper band 69 and the steel band 71 results

result from the following relationships:

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-15 -

2. P ₁ - r ₀ 4

^T c

O 2} --Γ + T 4- T + -
ti O 5 et £ _

Here mean

r is the radius of the ball roller 146;

r- ^ the radius of the center line of the steel strip 71 in the Laminate 75;

Γρ the radius of the center line of the copper tape 69 in the Laminate 75;

the extension length of the steel belt 71 in the laminate 75; the extension length of the copper tape 69 in the laminate 75;

t the temperature of the laminate 75 at the heating stands 110, 110 minus the ambient temperature; T "the thickness of the steel strip 71;
T is the thickness of the copper tape 69;
T_ the thickness of the adhesive film 60 ,.

After a spherical curvature is transferred to the bands 69 »71 by passing the tapes over ball roller 146, the tapes will advance downward from the ball roller left while cooling to ambient temperature he follows.

It is preferable to adjust the degree of curvature in the flat State inversely proportional to the relationship with the rate at which cooling occurs.

From Fig. 2 it can be seen that the wire for the center line 52 from the wire supply 76 into the wire drawing machine 78 by conventional means Pulleys (not shown) are supplied.

Referring to Figure 9, the machine 78 includes a tank 148 which is partially is filled with a fluid cleaning agent I50, which is also acts as a wire drawing lubricant. The fluid I50 can be a halo-

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be genized hydrocarbon, for example trichlorotrifluoroethane.

The central line 52 is descended through the machine 78 by means of a inclined friction roller 152 pulled over a belt pulley 154 is driven, which in turn is driven by a motor 155, "A common, ultrasonic vibrations Wire drawing mechanism 156 is arranged within a holder 157, which? is immersed in the liquid I50. The tool 156 is used to measure the dimensions of the inner conduit 52 .UQ 7 ·, mm (1 American Wire Gauge).

A proper tension is established in the inner lead 52 on an output side the friction roller 152 maintained by the main friction roller 84, which pulls off the finished coaxial cable 50 and the force on the wire 52 via the insulating washers 54-, 5 ^ - transmits. The speed control is through a conventional DC drive system with a tachometer generator for reverse regulation (not shown) maintained.

The use of the machine 78 on the illustrative in Pig ₀ 2 + - '^ site has a remarkable effect in reducing the severity of the fragmentation on, which is caused by the scraping action, as the prior art. A reduction in the formation of splinters has a direct influence on reducing the possibility of high-voltage breakthroughs occurring between the inner line 52 and the outer line 56, the. Creation of corona discharges and "return loss pattern wise" reflections.

Since the inner line 52 in a cleaning medium, for example se a halogenated hydrocarbon, is drawn, occurs the inner line from the tank 14-8 in a very clean condition the end. However, after the inner line 52 exits the tank 14-8, the path of the inner line runs in a straight line, at least until the insulating washers 54-, 54- are on the inner line and the outer line 56 is placed around the washers 54-, 54-

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4t

is brought. There are no intermediate bends in the inner conduit, and the inner conduit need not run around any guide wheels until the outer conduit 56 is fully formed around the inner conduit. The only bend or scrape that ^r the inner conduit after passing through the tool 56 is exposed, occurs when the inner line runs around the friction roller 152 = However, the friction roller 152 is immersed in the fluid I50, and the fluid acts as a lubricant between the various turns of the inner line 52 and the friction roller = therefore that the shortest route to? Handling of the inner line 52 is the one which successively reduces the probability of the occurrence of high-voltage breakdowns and the like between the inner line 52 and the outer line 56 »

According to Figo 10, the insulating washers 54, 5 ^ äe ^r inner line 52 of the coaxial cable 50 are fed with the disc applicator 80 = the disc applicator 80 is arranged so that the inner line 52 runs through a central passage 162 which runs through the entire length of the device »

Raw material for the insulating washers 5 ^> 54- is in the form of Polyethylene tapes 164, 166 are provided which have a continuous Length, width, of 12.4 mm and thickness of 2.1 mm »The polyethylene resin used to manufacture the tapes 164, 166 is an electrically insulating quality material of high density =

The polyethylene straps 164 ', 166 are guided through the two guide channels 168 or = 170, which are in a plane perpendicular to the inner line 52 are aligned »The tape guide channel 168 is attached to one side of the line 52, while the other tape guide channel I70 is on the other side of the The line is located »The BandEihrungskanäle 168, 17Ο are partially formed from Bandfuhrungsnuten I72 and 174, which have a Inner surface 176 of a punch plate 178 are formed. There is an inner passage at the center of the punching platform

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180, through which the inner line 52 runs.

Cut around the passage 190 and in the drawing plate 178 four cullet punching tools 182, 184 * 186, 188 are provided, which run through the thickness of the punching plate 178. The disc punches 182, 184, 186, '188 are generally circular in shape, but are through. ... ■ opening formed by each of the disc punches extending through slot cutting projections 192, 194, 196 »198 provided. the Projections 192, 194, 196, 198 are; p> / eils with narrow slot-forming Parts 202, 204, 206 or 208 and beveled insertion parts 212, 214, 216, 218 are provided. The insertion parts 212, 214, 216, 218 allow the insulating washers 54, 54-. Which with the corresponding shape of the disc punching tools 182, 184, 186, 188 are easily engaged with the associated portions of the inner conduit 52 on which they are arranged.

The centers of two of the disk punching tools 182, 184 are in alignment with the central axis of one of the tape guide grooves 174; similarly are the other disc punches 186, 188 located on the central axis of the other tape guide groove 172.

There are four disc application guide grooves in the surface of die 178 222, 224, 226, 228 molded in. The grooves 222, 224, 226, 228 have a depth corresponding essentially to that Thickness of the insulating washers 54, 54. Each of the grooves 222, 224, 226, 228 is wide with a portion 232, 234, 234, 236, and 238, respectively and a narrow part 242, 244-, 244-, 246 and 248, respectively. The narrow parts 242, 244, 246, 248 are just wide enough to allow proper sliding play for the discs running therein 54, 54 to ensure. The wide portions 232, 234, 236, 238 are wide enough to provide a stable operating base for associated Disk applicators 252, 254, 256, 258 (Fig. 12) create.

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The disc applicators 252, 254, 256, 258 are flat Plates made of tool steel «The application devices 252, 254-, 256, 258 are provided with wide sections 262, 264, 266 and 268 respectively and narrow parts 272, 274, 276 and 278 respectively, both of which Sections in their dimensions the wide sections 232, 234, 236, 238 or the narrow sections 242, 244, 246, 248 of the grooves 222, 224, 226, 228 correspond. The narrow parts 272, 274, 276, 278 of the disc applicators 222, 224, 226, 228 are provided with ends 282, 284, 286, 288 that are concave. The shapes of the ends 282, 284, 286, 288 correspond to essentially the shape of the segment of the disks 54, 54, the are held in engagement by the application devices 222, 224, 226, 228 «,

The wider sections 262, 264, 266, 268 have cam actuation openings 292, 294, 296 and 298, respectively, which extend therethrough. The thickness of each of the applicators 252, 254, 256, 258 is substantially equal to the thickness of the insulating washers 54, 54. The stano tool plate 178 is formed with four cam actuating grooves 302, 304, 306, 308, each of the grooves in alignment with the central axis one of the disk application guide grooves 222, 224, 226 and 228, respectively. The Nockenbetätigurs ⁰ grooves 302, 304, 306, 308 extend through the entire thickness of the punch plate 178th

The centerline of each of the disc punches 182, 184, 186, 188 is sufficiently close to the centerline of the inner conduit 52, so that, for example, when one of the disks 54, 54 is printed out from the associated disk application groove 222, the disk engages the associated part of the inner conduit 52, before it loses contact with the narrow part 242 of the groove. This arrangement ensures that the control at the location of the disc 54 during its transition from the punching plate 178 to the inner conduit 52 is maintained.

The polyethylene tapes 164, 166 "are replaced by the corresponding Tape guide channels 168, I70 with a conventional (not shown) Roller feeder pulled. The roll feeder

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direction is operated in such a way that a two distances ■ Generated extensive stepping movement of alternating ligaments so that, in other words, each polyethylene tape 166 that is incremented a distance from the center lines the disk punching tools 182, 184 is moved. After Stepping motion cuts both disc punch 182 and disc punch 18A- one of the discs 54, 54 off before further indexing occurs.

According to FIG. 10, a stripping plate 310 is arranged within the punching plate 178. The stripper plate 310 has generally the same outer contour as the punch plate 178. An end plate 311 is arranged outside of the punch plate 178. The end plate 311 has generally the same outer contour as the punch plate 178. Compression springs 313 1 313 are used to create a spring preload for four punch holders 322, 324, 326, 328, which can be seen from FIG. Each of the punch holders 322, 324, 326, 328 corresponds in the shape of its outline to the shape of a quadrant of the punching plate 178 (FIG. 10). Two shoulder bolt passages 329, 329 are provided in each of the punch holders 322, 324, 326, 328. A punch holder passage 330 is provided on each of the punch holders 322, 324, 326, 328. The passage 330 is formed with a shoulder and a thread.

Stamp 332, 334 ₅ 336, 338 in each of the die holders 322, 324, 326 and stored 328th By virtue of its corresponding shape, each of the punches essentially corresponds to the shape of each of the disk punching tools 182, 184, 186, 188 with sufficient play to ensure that the polyethylene strips 164, 166 are cut out correctly. Each punch holder 322, 324, 326, 328 is actuated by a skirt member 342, 344, 346, and 348, respectively. According to FIG. 10, a typical cam member from the group of cam members 342, 344, 346, 348 (FIG. I3) comprises a projection 349 for actuating the associated punch holders 322, 324, 326, 328 and a cam part 350. The cam part drives the associated Disc applicator 252 perpendicular to the movement of cams 342, 344, 346, 348. The cam part

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350 is provided with a dwell section 35 through which the associated disk applicator 252 in a retracted position "A beveled traverse section 356 acts on the associated disk applicator the disc applicator within the disc applicator grooves 222, 224, 226, 228 to move; a sharply curved injection section 358 is used to move the disk applicator in their final application position »On the inside End of cam link 342 is a normal cam follower 360 provided The cam follower element 360 operates within a cam groove 362, which is a recess in the surface a drum cam 364 is formed »

According to Pig »14, the cam groove 362 includes a passive portion 366 which in an area of approximately 260 the surface of the Drum cam 364 surrounds "The other 100 ° of the cam groove 362 represent the action part 368" The action part 368 includes a punch contact section 370 and a punch retraction section 372 = the punch contact section 370 is over 40 ° Surface of the drum cam 364 is formed while the punch retracting portion 372 is formed over 60 ° of the surface.

According to Pig 10, in connection with the typical cam member 344, it can be seen that when the drum cam 364 rotates about its axis, the cam follower member 360 / mi1? aSa. passive part 366 is engaged which holds cam members 342, 344, 346, 348 in a retracted position with respect to the associated punch holder 324; consequently, the associated punch 334- is held in a retracted position because the spring preload of the punch holder is present ο

For example, when the cam follower 360 in association with the cam member 344 is in engagement with the active part 368 (Fig 14) the cam groove 362 arrives, so the ITock link 3 ^ 4- so driven that the projection> 349 with the punch holder 324 in When the punch holder 324 is moved into engagement with the associated part of the polyethylene tape 166, it pulls

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the sawed-off transverse part 356 of the cam part 350 removes the washer application device 2 - 4 from its washer application guide groove 224, so that a clearance is created for the punch 334 to advance through its associated washer punching tool 184. The actual punching out of one of the insulating washers 54, 54 (Fig. 1) takes place while the pad applying device 274 is in abutment with the dwell section 354 of the cam member 344 = the maximum stroke of the ram 334 occurs, as is understood when the cam follower member 360 abuts the innermost part of the cam groove 362 stands _β

As the drum cam 364 continues to rotate, the cam follower 360 engages the punch retracting section 372 (Fig = 14) of the cam groove 362, with a withdrawal of the punch 334 from its cutting position by the Force of the compression spring 313 is made possible on the punch holder 324 is effective «

When the cam follower 360 enters the punch retracting portion 372 (FIG. 14) of the cam groove 362, it moves Cam member 344 in sequence so that the dwell portion 354 with respect to the disk application device 274 out of engagement arrives; the beveled traverse portion 356 engages the disk applicator, thereby applying the disks Bring device is driven inwards, so that the discs Br ing device has come into engagement with one of the insulating washers 54, 54. When the cam follower 360 engages the passive part 366 (Fig = 14) of the cam groove 362 approaches, but still during the period in which it is still in engagement with the plunger retracting portion 372 (FIG. 14) is located, the injection portion 358 of the cam member 354 engages therewith of the disk applier 274 and transfers onto the disks bringing device the necessary movement for pressing the insulating washer 54 on the inner line 52 (see application device 266 in Fig. 12) “After the cam follower 360 reaches the passive part 366 (Fig. 14) of the cam groove 362, the disk applicator 274 engages a

- 23 -

209 8 4 2 / 080Ö

Idle section 366 of the cam member 34-4-, in this position the disk applicator 274- is kept away from the path of the insulating disks 54-, 54- when they are along the inner line 52 (see application device 252 in Fig. 12) move"

When the drum cam 364 continues to rotate, the active part 368 (Fig. 14-) of the squat groove 362 successively in contact with cam follower 360 of cam members 34-2, 34-6, 34-8 (Figo 12) ο A constant rotation of the drum cam 364- results in cyclical operation, with four insulating washers 54-, 54- punched through and the inner line 52 with each rotation be fed to the drum cam »

The drum cam 364- includes a support portion 378, which is attached to a conventional warehouse 380. A cylindrical conduit guide section is also located on the drum cam 364- 382, which is small enough in its outside diameter to allow clearance for the projections 34-9-34-9 of the cam members 34-2, 344 ·, 34-6, 34-8.

The entire disk punching and applying device 88 is surrounded by a main frame 384- = the drum cam 364- is through any conventional drive element (not illustrated) in transmission connection to operate at the correct speed and the insulating washers 54-, 54- at the correct intervals along the central line 52 to keep apart.

11 is a step-by-step advancement of the polyethylene tape 164- affects after the disc punching tools 186, 188 their corresponding insulating washers 54-, 54- from the tape 164-, as well as during the time in which the disk punching tools 182, 184- cut their respective insulating washers cut out of the polyethylene tape 166. Similar Thus, the polyethylene tape 166 is incrementally advanced when the cutting operation is performed on the polyethylene tape 164- will "

- 24- -

209842/0808

After a laminate 61 runs over the wire drawing machine 78 and the disk application device 80, it reaches the corrugating machine 81, which is best shown in FIG. The corrugating machine 81 comprises a frame 386 on which a drive motor 388 is arranged, which drives a group of corrugating rollers 390, 391 via a belt 392. An output-side voltage control part 39 ^ is * ^w ith a potentiometer 396 through a belt / pulley assembly coupled so that any changes in the output speed of the corrugated rolls 390, are displayed 391 and the potentiometer may send a signal to den.Motor to the speed change by a control circuit (not illustrated) to compensate. ·

Also within the corrugator 81 is an input tension control roller 400. The roller 400 is arranged so that that it is able to slide along a path 402 under the frame of a conventional spring motor 404, so that an im substantially constant tension can be applied to the laminate 61. The movement of the roller 400 along the path 402 causes it a change in a sliding wire resistor assembly 406. The changes in the resistance of assembly 406 cause changes in the speed of the motor which drives the last of the heating units 110, 110. Therefore, the input voltage of the laminate 61 is controlled when the laminate is between the corrugated rollers 390, 391 passes through.

Guide rollers 408, 409, 410 have been used to corresponding Create paths for the laminate so that the tension control rollers 394, 400 can work properly.

In conjunction with FIG. 16, the convenience of controlling the input voltage of the laminate can be seen when it is through the rollers 390, 391 are corrugated.

For any particular angular velocity of the rollers 390, 391 the linear speed of the laminate changes as it advances through the rollers "Since the circumferential speed

.- 25 -

209842 / 08ÖS

speed of the rollers 390, 391 is constant and the linear speed As the laminate surface changes, the laminate must slide over the roller surfaces.

16 occurs when the input voltage is controlled symmetrically corrugated laminate between the rolls. According to the prior art, the corrugations are asymmetrical or beveled shape as illustrated in FIG is. This is commonly referred to as a "sawtooth" shape and is an unfavorable characteristic of a corrugated laminate. A coaxial tube made from the sawtooth-shaped corrugated laminate is established, results in a non-uniform impedance within the known coaxial cables.

The mechanism by which the "sawtooth" shape develops, is not fully known, but it is believed that the problem is related to non-uniform frictional forces, which results from the relative movement between the roller surfaces develop the laminate surfaces; these frictional forces seem to be related to the tension present in the laminate, when this is inserted into the shaft device. It was found that the control of the voltage had the "sawtooth" effecti * + able to reduce.

The different radii, profile heights, profile slopes and angles at the tangents of the radii according to FIG. 16 are used so that the inner copper surface has the least "absorption" maximum height of the ski run, great flexibility and minimal slope, because the "warping of the corrugated profile has a strong influence on the electrical passwords of the coaxial cable»

According to FIGS. 18, 19, after exiting between the solid rolls, the laminate arrives at the forming and soldering machine 82. The forming and soldering machine 82 Soldering machine comprises a soldering station 442, an input guide 444, several form rolling stands 446, 446 with vertically oriented Shafts and several form roll stands 448, 448 with horizontal oriented want.

- 26 -

209842/0808

se

The role Scores 448, 448 are power driven by a common driving group, which includes a motor 450, a-reducer 452, and a distance shaft 454 "There are five roll stands 448, 448 with five interposed spaced vertical roll stands 446, provided 446, wherein all roll stands in a basic bedding 456 are arranged, each of the five roller stands 448, 448 is provided with a normal right-angled power take-off 458. ■

A detailed view of one of the Itorm roller stands 448, 448 results from FIG. 20. The power take-off 458 (FIG. 18) is coupled to a lower horizontal shaft 460 with a conventional flexible coupling (not shown). The shaft 460 is mounted on conventional roller bearings 464, 464. The shaft 460 is held in place within the roller bearings 464, 464 with normal bearing lock nuts 466, 466. The bearings 464, 464 are in turn supported within an external mounting frame 468 and an inner mounting frame 470.

An upper horizontal shaft 472 is similarly, within two of the usual roller bearings 464, 464 supported. The bearings 464, 464, which support the upper horizontal shaft 472, 'are mounted within bearing adjustment blocks 4? 4, 474. One the adjustment blocks 474, 474 is sliding inside the outside lying mounting frame 468, one of the mounting sb] * <". ke in a similar manner within the inside Mounting block 470. An adjusting screw 476. is in each of adjustment blocks 474, 474 inserted. The screws 476, 476 run along the top of the associated mount SQestell-468, 470 "Each ^ of the attachment point 468, 470 is with a cap 478. »A calibrated adjusting nut 480 is within each of the caps 478, 478 with a conventional retaining ring (not illustrated) held. The upper horizontal shaft 472 can be raised or lowered by rotating the Adjusting nuts 480, 480 are effected.

"The possibility of changing the position of the upper horizontal

- 27 r-

2098 42/0 80S

Shaft is beneficial because it allows the standard roll stand 448 has to be adapted to different thicknesses of the laminate formed and because the exertion of changing pressure values on the Laminate is possible.

The upper shaft 472 is in sync with the lower shaft 460 via a planetary gear 482 is driven. The shaft 460 has a conventional spur gear 486. The gears 484, 486 are with their respective shafts 460, 472 by one usual each Keyed spring (not illustrated). The pitch diameter of the gears 484, 486 and the distance between the centers of shafts 460, 472 are chosen so that the gears are not in mesh.

Idler gears 488, 488 are rotatable on shaft 472 too attached to both sides of the gear 480. A planetary gear 490 is between the two idle members 488, attached, which are mounted on the shaft 472. A planetary gear 490 has the same tooth configuration as the gear 486. The gear 490 is rotatably mounted on a shaft 492 which is held in place between the two idler members 488, 488 istο The shaft 492 is at a distance from the Shaft 472 so that gear 490 is in proper engagement with gear 486.

A planetary gear 494 mates with gear 484 in

similarly held in engagement as is the case for gear 490 versus gear 486. The gear 494 is between one of the idle members 488, 488 and an extended one Idle link 496 mounted. The idle link 496 runs, along the centerline of shaft 460 to such an extent that the idler member is in contact with part of a base 498 and part of a main frame 5OO arrives. The wave 492, which supports the gear 490, and the shaft 502, which supports the gear 494, are at a fixed distance from each other Links 504, 504 held. The gears 490, 494 are kept at such a distance that they are correctly in

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209842/0808

handle stand «, since the gearwheel 484 with the gearwheel 494 and the Gear 494 are in engagement with the gear 490, which is ultimately in engagement with the gear 486, must all Gears have the same tooth profile.

Movement of shaft 472 up or down does not interfere with the ability of transmission 482 to drive shaft 472 in synchronism with shaft 460. An upward deflection of the center line of the shaft 472 results in a slight rotation of the gear 490 about the axis of the gear 486 and a corresponding slight rotation of the connecting member 504 about the axis of the gear 494.

The arrangement described above reduces the elongation of the formed Laminates 61 if differences between the surface speed of the laminate and the surface speed of a lower forming roller 506 and an upper forming roller 508 while visiting or slowing down the molding equipment stand 448 are present «If, according to FIG. 22, the surface speed of the laminate is higher than the surface speed of the lower roller 506 attached to the shaft 460 is the top roller 508 »the one on the shaft seated, given the opportunity with a certain angular velocity which is different from the angular velocity of the lower roller 506 on the shaft 460. If this Condition occurs, the Plaoä: en gear 494 runs in a clockwise direction about the axis of gear 484, with planetary gear 490 rotating clockwise about gear 486, until the expanded idle member 496 comes into contact with the base 498.

It can be seen that the shaft 472 can rotate to some extent, regardless of the rotation of the shaft 460 as the extended idle member 496 moves from a contacting position with part of the main equipment 500 to the one mentioned above Moved position in contact with the base 498, which in other words the transition from the state according to FIG.

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20 9 842/080 8

stood according to FIG. 22 corresponds. The ability of the top role 508, "idle", allows the surface speed of the top roller to match the surface speed of the laminate 61. This ability to adjust surface speeds prevents the laminate from sliding 61 over the surface of the upper roller 508, thereby helping to reduce the elongation of the laminate.

If the surface speed of the laminate is lower than the surface speed of the rollers 506, 508, so the transmission 482 reacts in the opposite Uoise to the above explanations. I turn the planetary gear 494 the axis of gear 484 is counterclockwise. The planetary gear 490 rotates counterclockwise around the axis of gear 486. The extended idler link 496 moves from a position in which it is in contact with part of the base 498 to a position in which the link is in contact with part of the main frame 500.

When making the tubes with the forming rollers, for example rollers 506, 508, the edge of the strip could be a Form cosine curve when a projection in the x- ^ y-plane (Fig. 23) takes place. A molding machine consisting of a pair of rolls in support in the roll stands that are in uniform Spacing on the machine frame could be used to make pipes as shown in FIG in practice happens. The form rolls must have a special one Have radius so that the edge of the shaped strip protrudes on a C.osinuskurvc. The edge of a shaped strip When viewed from the end, fens forms a "Limacon" curve in an x-y plane. In right-angled coordinates this is Fourth order curve and difficult to determine while reproducing it in polar coordinates in general terms is as follows: ^ = .a (b + cosa). If at regular intervals arranged Rollonformstando in the pipe forming process are to be used, the radius of curvature and the x- and y-

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209842/0808

. 29 ■ 2215001

Points marking the edge of the strip in a section of the Represent the forming process, mathematically for each role in one special status can be determined "If the pipe from a completely plastic material is produced, i.e. a material which can be stretched and compressed without stress is, then this radius obtained in this way would be valid »However, all materials have a" springback effect ". Accordingly a strip of material like the laminate must be overmolded on each group of rollers to compensate for springback and to end with a tube of desired diameter that does not have excessive residual stress after the Butt edges have been closed by soldering or welding.

If pipes with residual tension for the external lines 56, 56 the coaxial cable 50 are used, it is possible that the Solder creeps, xrobei the diameter of the outer leads can change »This would change the characteristic impedance of the coaxial cable 50 change, which is highly unfavorable. Since the transmission ssysterne using coaxial cables for well-matched Characteristic impedances of the elements of the system are designed, changes in the diameter of the outer line 56 would by no means tolerable ο Therefore, the elimination of residual tension, which result from incorrect compensation of the springback effect are an important consideration if Coaxial cable 50 are produced.,

In some simple pipe forming operations, such as forming a round pipe from a well known homogeneous one Material with uniform physical properties, technical development has empirically established certain standard values. means, due to which form rollers can be built around the to ensure the necessary degree of deformation and a tube to create that is essentially free of residual stress. Such standard values are only available after extensive experimental work and can therefore be used for Substances are not used that were not previously used for the manufacture of pipes were used "

_ 31 _ ■

20 98 kl I 0808

A first step in compensating for the springback effect in complex materials it is necessary to determine the size of the rebound effect. The springback effect can be for a specific Material can be determined by performing a simple tensile test on a sample of material. The exam includes the Measurement of the original length, application of a load which is above the proportional limit, measurement of the stretched Length, removal of the load and measurement of the set Length. Repeating the test on some samples of the same material results in some set values, one of which Average value can be formed.

Graphical results of a determination of the springback process are shown in FIG. 24 for the laminate 61. The tensile test can be performed on the laminate 61 in either the corrugated or non-corrugated condition when the transverse pulling operation to the axis of the belt, i.e. parallel to the corrugation.

According to FIG. 24, the shape radius of a roll former can be used for manufacturing flat strips in pipes with certain desired characteristics can be determined using the following formulas:

Ru ₀ X are not known

_{r β}

The following applies:

t / 2)

tan / i =

- 32 -

209842/0808

tan t. -

Lr = L ₀ + L _o S

Lm-L - LS tan / = | 2_

_f,. . y _ 36OL _n γ _ 360L ₀

90L _n r

90L ₀ -irr (ß-jß)

90L r

90L _n - irr pfcan -1 / Lm - L _n \ - tan -1 j Lm -

Here mean:

R is the radius of the formed roller groove (unknown), r is the radius of the formed tube after the forming cycle, set

approx. the degree of shaping for one shaping run, set

L is the original strip width, L is the relaxed outer surface strip width (after spring back), Lin is the theoretical outer surface strip width, t is the strip thickness, 3 is the degree of shape for the shaped strip (after spring back), θ is the spring back angle = p - 0 , S is the degree of elongation in mm per mm (as determined from the tensile test).

-33, -209 842/080 8

Below is a specific example "Calculated. The following Conditions are specified for a typical shaped pipe:

T) -Q ZiQQ

1. Nominal diameter of the finished '- ^
Pipe,

r = 0.195

2. Outside diameter of the finished pipe = 0.424

3. Inside diameter of the finished pipe = 0.356

4. Thickness of the material (corrugated) t = 0.034 5 = material overlap, W = 0.126

6. Material _{width L Q} = ^ D + WL _Q = 1.350

7 " Total degree of deformation ₉ ^r = 360 L _Q ckt = 396.657 °

8. Applying 10 molding passes, 1 = 39.6657
Degree of shaping per pass - * '-,

9. Elongation "S" from the tensile test S = 0.0015 min /

It is the nominal radius R of the forming roll for the second
To determine throughput "

Formed angle τ ₂ = 79.3314 °

Formed radius r ₂ = ¹⁸⁰¹ ^ o = (180) (1.35) = 0.975

w * '2 fTO, 3314)

Theoretical outer surface of the formed strip = Lm

+0.017)

Lm = 1 = 3735

- 34 209842/0808

η Lm - L 1.3735 "- t-350 ο

Tan | U -τ-2 = 0Q34 = 0.692 = 34 ° 41 '

Lm - Lr, Lr = L + L S

2 °

= 1.350 + '1350 0.0015 Lr = 1.352025

Tan * - 1.3735 - 1-352025, ^ _{6316 β 3} 2 ° 17 '0 »034

e = / 5- (Zf = 3 ^ ° 41 · - 32 ° 17 * = 2 ° 24 '= 2Λ ° H = Cf: - 20 = 79.3314 ° - 4.8 ° = 7 ^ .5314 °

_{= n =} 180 (1.35 )

E = 1058 "ΊΤ (74.5314)

90L t _o

E =

90 L ₀ - r ₂ ["tan -1 / L- LA tan -1 / Lm - L _Q - L _Q L \ /

90 (1.35) 0- 975)

90 (1.35) - 'i! (975) (34.663 -. 32.283)

118.4625
121.5 - (3 = 06306) (2o4)

118.4625 ₌ 118.4625

121.5 - 7.3-51404 114.1486

E = 1,038

It will be understood that the above arrangements are illustrative only serve the principles of the invention.

209842/0808

Claims (1)

22 / 15-031 Ans οj Process for the production of coaxial transmission media with an inner line and a tubular outer line, the cross-sectional dimensions of successive parts of a wire can be reduced to the desired cross-sectional dimensions of the inner line and the inner line with a Multitude of slotted disks is isolated, characterized by transferring a certain three-dimensional Curvature on each fabric of a coherent laminate (69, 71, 60) made of fabric (69, 71) with different Thermal expansion coefficient is formed, wherein the substances are connected to a temperature-responsive adhesive (60) while the adhesive is kept flowing and the fabrics are at a certain elevated temperature compared to the ambient temperature (Fig. 4 ·), and cooling the substances to the ambient temperature while the three-dimensional curvature is removed to substantially expose the laminate to the load. 2. The method according to claim 1, characterized in that the three-dimensional curvature is continuously transferred to successive parts of the fabrics forming the laminate and is removed from these » 3. The method according to any one of claims 1 or 2, characterized that the three-dimensional curvature is transferred to the material by guiding the material over a roller (146) become, which is a Kugelsegmerfc » 4. Method according to one of claims 1 or 2, characterized through continuous otsi-prung of the radius of the three-dimensional Curvature during cooling of the laminate from the elevated temperature to the ambient temperature is inversely proportional to a temperature difference between the ambient - 36 - 209842/0808 " BS 2145-034 temperature as well as the temperature that is present in any given state of cooling = 5ο method according to any one of claims 1-4, characterized by reducing the cross-sectional dimensions of the successive Parts of a wire (52) within a liquid medium, delivery of successive parts of the ■ inner line (52) from the liquid medium along an axis around which the tubular outer line (56) is formed is, punching disks (54-, 54-) from a Web supply of insulating material with several punching devices (332 - 338), pressing each disc onto the Inner line with an injection device (252-258) in association with each of the punching devices, which in The interaction with this is to be actuated, advancing successive sections of the laminate in and through a corrugation device (81), corrugation of successive Parts of the laminate, sensing a tension in the laminate at an input side of the weighing device, Modulation of a force output variable of a voltage generating device (406) as a function of the sensed voltage, in order to set the voltage within the given To positively control boundaries and any undesirable distortions in the material through the To reduce corrugation generated corrugations, adding successive sections of the laminate as well the inner conduit, insulated with disks, into a pipe forming machine (82) and forming the laminate around the with Disc-insulated external line. 6ο method according to claim 5, characterized in that the reducing process is effected in a liquid medium which is subjected to an ultrasonic reaction. " 7 »Method according to claim 6, characterized in that the liquid medium is a solvent for organic contaminants. 209 842/0808 8. The method according to any one of claims 6 or 7, characterized in that the liquid medium is a halogenated hydrocarbon, 9ο method according to one of claims 5-8? marked by punching out the slices from a web-like supply made of insulated material with several stamping elements and pressing each of the discs onto the pipe after each of the Discs is punched with an injection element that is in Assignment to each punching element is and is to be activated in conjunction with this » 10. The method according to claim 9, characterized by actuating the Punching element in the axial direction of the line and actuation of the injection element laterally opposite the axis of the line « 11. The method according to any one of claims 9 or 10, characterized in that that by actuating each punching element and the associated injection element one of the disks is brought onto the line with an alignment of the slot, which differs from the slot alignment of a previous disc » 12o method according to any one of claims 9-11 characterized in that the .stanzvorgang on at least two strips of the insulating material is carried out and that a first strip is advanced step by step, while a second Strip is punched, 13ο Device for carrying out the method according to one of the Claims 1-12, characterized by elements for transmitting a certain three-dimensional curvature in each the fabrics of the laminate (69, 71, 60), and elements for. Cooling of the material in order to reach the ambient temperature, while the three-dimensional curvature is removed, so that a flat and essentially tension-free Laminate, yields, - 38 - 209 842/0808. "COPY 14. The device according to claim 13 _5, characterized in that the elements for transmitting a three-dimensional curvature on the material include a roller (146) "which is a 'spherical segment" Device according to one of Claims 13 or 14, characterized in that the radius of curvature of the spherical segment of the roller, the layer material which is inwardly opposite the roller, and the layer material which is outermost opposite the roller are given by the following expressions . true are: '. · V = 2. r, = r _n + Ts where mean:. · ■ ■ " r _{Q is} the radius of the spherical segment of the roller, r - [_ the radius of the center line of the laminate material inwardly opposite the roller, ". · ? 2 the radius of the center line of the laminate material outermost, opposite the roll, . AIg is the stretching length of the laminate material in relation to the roll,. ■ - Alλ is the stretching length of the laminate material outermost in relation to the roll,. t is the temperature of the laminate at the specific elevated temperature minus the ambient temperature, T _{3 is} the thickness of the laminate material at the center of the roll,. '- T is the thickness of the laminate material outermost compared to the roll, .... '.. - ..- ■ · T ₅ , "the thickness of the adhesive" ■ .. ....-'-. 209842/0808 ■ · '- ·:'^; ^ ^; -r ' ■■ ·'.-..... '.. ■.: .-.'; ■ Copy 22150S1 - SS 16. Device according to one of claims 13-15, characterized by Hßiaente (156) to reduce the cross-sectional dimensions successive parts of a wire to the desired cross-sectional dimensions of the inner conduit (52) within of the liquid medium (150) and elements for dispensing successive portions of the inner conduit of desired dispensing. measurements "from the liquid medium on an axis around which the tubular outer line is formed. 17 »Device according to claim 16, characterized in that the Elements for reducing wire dimensions include a wire drawing tool. 18o device according to claim 16, characterized in that one Device for applying ultrasound to the liquid Medium (150) is provided. 19 · Device according to one of claims 16-18, characterized in that that the liquid medium is a solvent for organic contaminants. 20, device according to one of claims 16-19 »characterized in that that the medium is a halogenated hydrocarbon. 21, device according to any one of claims 15-20, characterized in that that several punching elements (332 - 328) for punching the disks (54-) from the web-shaped storage material (164 166) of the insulating material is provided and that an injection element (252 - "258) associated with each of the punch elements stands and is to be operated in cooperation therewith to press each of the disks onto the line after each the discs is punched out. 22, device according to claim 21, iadnr-h gaksrm ^ eiciinet »that Hoc; c-3, .islaments (342 - 35C) vergas ei ?, in are, -jm das Stanzele-.T.enr in A ^ rialriehvi ·:? ^ dar L3ζtung cu actuated · .-? !! and the domestic - 40 - ^^^ ■ ^^ SAD ORiQINAL _copy jection element on the side of the axis of the line (52) in We- '" kung to put! "■" .-. ; 23. The device according to claim 22, characterized in that the operation of each of the punching elements and the injection element assigned for attaching one of the discs to the with a slot orientation that is from the slot orientation of a previous disc differs. . . ·, 24 ·. Device according to one of claims 21-23, characterized in that that at least two of the punching elements are arranged on opposite sides of the line. 25. Device according to one of claims 21 - 24, characterized in that that the supply web of insulating material comprises at least two strips (164-, 166), which the intermittent Allow a first strip to be fed while a second strip is subjected to a punching process » 26ο Device according to one of claims 21-25, characterized in that the punching elements are designed to deliver the associated disc into a detection slot (248), and that the injection element is effective along the axis of the slot to press the disc onto the line so that the disc is positively held in place by the operation of the punching and injection element. ·; ■ .. · ".; _: 209842/0808 HO Blank page