Corrugated tubing

(29M6 c) "WOUNDED TUDOLAR FORIATED BY UH HASTKO WATER TURNED WRONG K01) 0 ELICOIDED AND BALANCED, PARTICULARLY FOR CASES AND LIQUIDS" EOA AO huzoro, in Lucerna (Sviaaera)

The invention is a corrugated tubular formed by a recessed wound or wound shaped helix, the sealing element being welded sealed we have its edges in contact with each other *

Gas-tight conducting conduction © known liquids are known as corrugated tubes or tubular tubes or flexible tubular flexible metal tubes, which are manufactured from an embossed band, and the ribbon ribbons are attached to each other by means of a sleeve durring to resistance *! The strip has only a longitudinal groove in its longitudinal direction. * The ribbon spaced edges form the projection of the tubular reflection ripple, 11 which corrugated tube is continuously welded to the double wall?

This corrugated tubular tube that has given good results in the lawn presents for the purpose of using the considerate drawbacks. Since the protrusion of the corrugation has a double wall and each corrugation or corrugation is on a single wall, the resistance extends to the outer wall of the wavy tubular b major, towards a radial bend, of the inner resistance of the inner wall # Therefore, the lamellity of the wavy tubular is lnuogenous Mainly pores * la

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double wall of the protrusion of the corrugation increases the penile of the tubular thunder /. Indeed a wide ripple can somewhat diminish the weight of immature degree. We oasis of employment, which is very important to a pio-coil, for instance in the construction of airplanes, even a low-heeled oos is an undeservedly large ano.

In many cases, a limited mobility of the corrugated tube is sufficient1. They are examples of corrugated tubes for 3 'eliminating differences in mahogany assembly or devices, 1 are only worn during the setup or preparation for cleanup. Known corrugated tubes 6 can be achieved by a' restriction 'in mobility only within tight limits1.

A further disadvantage of known corrugated pipes is the relatively slow production speed since the ribbon surmounting edges, which form the protrusion of ripple, have to be *. 4 wires connected to their entire length by electric welding * durability! ^ For a few meters of corrugated pipe or a longer welding cuvette for the amount of a multiple or the solvents of inermitiousness

In order to avoid the disadvantages described, in a corrugated pipe of the desiccator at the outlet it is expected to conform to the invention to the welded welding followed by at least an unbonded welding. "In relation to the elastics the strip has a profile uneven or slightly different ripples. * * The execution ends of the ribbon bent in the wrap around on a spindle and are connected to each other by honey. oontinous welding of a spor-

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- 3 .- Double-walled corrosion-resistant wall for electric resistance welding or by means of another welding process' ®

Since the connecting point present in the same shape as the finished wavy curves in the strip, 11 points of oodulation, seen from the outside, is only barely good quality and the corrugated pipe, particularly in oaso of head edged ribbon edges, has a homogeneous profile over the entire length, with oak laqual is guaranteed a uniform foldability. In this execution, all undulations may also have the same bending radius *

If the curved wavelengths in the web are lower or wider than the waveforms resulting from the overlapping ends of the tape, then the same wavy tube may have cavities and the wavelength of the tube can be determined according to the desired prefissail criteria. welded overlapping ribbons can be shaped to lesser extent so that the increase in stiffness resulting from the overlap is compensated with respect to the major non-abrasive undulations1; Marginal wavelengths can be performed for this purpose as a 'higher example' or 'larger beams'. Overlapping in the bushes - not wavid then the undiagnosedness and mobility of the corrugated tube.' Compared to the well-known wavy tube, in which all the protruding protrusions are welded, the corrugated tube of the invention can be adapted to a substantially higher production volume. At the same winding speed © welding the amount of product tube amounts to double or multiple seperate when the threaded ribbon has one or several intermediate ruptures. This increase is " :::::::::::::::::::::::::::::; ; -: -: -: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - , represents a very important economic advantage® duoibilo oon a substantially higher production volume. At the same winding speed © welding the amount of product tube amounts to double or multiple seperate when the threaded ribbon has one or several intermediate ruptures. This increase is " :::::::::::::::::::::::::::::; ; -: -: -: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - , represents a very important economic advantage® duoibilo oon a substantially higher production volume. At the same winding speed © welding the amount of product tube amounts to double or multiple seperate when the threaded ribbon has one or several intermediate ruptures. This increase is " :::::::::::::::::::::::::::::; ; -: -: -: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - , represents a very important economic advantage®

An eutective evacuation of gas-free and leak-proof guns * A defective welding, which is not entirely exorbitant, could hurt the hermetically locally! * The welding seal then counts as a source of failure, respectively defects · Median¬te the reduction in the length of the welding seam to the dilatation units of the corrugated tube is increased the safety of the hermeticity, therefore the safety of operation *

Compared to a folding of the lateral edges of the sleeve, known attachment in the case of corrugated tubes, the oollegamentoper firmly has the advantages of lesser weight and absolute stability * * But the fact that the edges or margins of the ribbon do not they must be folded several times and scratched between them, bona! there is enough an over-and-over-enough overlap in the width of the solder, the decreasing tendency to be consid- erable, especially as these tubular dowels are usually employed in large diameters. This faoilitail shipping and mounting of corrugated pipe *

The resistance &amp; amp; extremely high rupture provided by the welded edge of the ribbon edges, it is of great importance for the case of suspended vertical mounting or other solenoids. corrugated pipe traction »In this feature of. quality, welded corrugated tube is many times superior to a corrugated pipe re-

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5 bent * The hollowness of the corrugated tube and the invention, hermetically sealed in any position and at any time, increases οοπηΙ-hastily the safety of operation in the face of a folded overdue tube1 * The hermetHÙ for example in the use of tubing in the construction of ventilation or air conditioning and heating systems, it prevents aggressive fluid from falling from the inside of the tube to the outside, or in which oocesce a corrosion of the corrugated pipe and a masonry damage the same. Such folded tubes are used in a par ticular manner for the chimney of chimneys in the heating and medium heating systems o L '

These two disadvantages may be exerted in a manner that is guaranteed by the execution of the invention in accordance with the invention. Welding of tubes which can be obtained on the molten can guarantee analogousness, the product according to the invention has a very substantial technical advantage. 'The invention is explained in more detail in the following on the basis of schematic disadvantage in several examples of execution'

Fig. 1 Fig. 3 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. 1 Fig. , a profiled strip condimensioni different day ondulasionij fig * 4} a double-walled corrugated pipe the cool corrugated pipe 5 double wall amended * r

The curved strip 1 soof the fig * 1 has three waves in the median side! "The edges 3a and 3b are also corrugated." The strip 1 can be wrapped in a liner line so as to the edges 3a and 3b can be superimposed and welded to form a corrosion-resistant 4-electrode welding solder. In this way a corrugated tube 5 ® is obtained which is gassed and is vacuum according to Fig. 2, in which the half of the undulating tube is omitted to the left

The corrugated tube 5 then passes between two welded corrugations4 several undulations welded * The number of these undulations of the median part 2 is adjusted to the shape of the profile and to the diameter of the tube * l * a fig * 3 shows a corrugated tube, the median coronal ripples, wall ripples, or proformed in the strip, are lower than the Baldated ripples in the overlapping edges of the na *

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This way, a very homogeneous mobility of all such waves is achieved, that is, the preformed corrugated welded corrugations of the welded ones, but 1 Increased stiffness resulting from the double wall of the welded waves is again decreased, causing the largest radius to a value which is corriepond © at the outer rigidity of the non-Gaidata ripple and to a smaller or smaller wall. The different shape ducts of the corrugations therefore have the same movement characterization. Preformed and not corrugated wedges of the median area of ​​the belt may be lower or lower ends whenever an increase in the rigidity and tensile strength of the corrugated pipe is desired.

A double-walled double-walled tube and the fig * 4 can &amp; be constructed for the fact that it wraps up Completely overlapping strip, peru and even strip tape only in ribbon edges 6 #

In this way a double wall tube is formed, which, welded to every wave of corrugation, is welded to the wall and has unbonded welding between two welded waves *

Fig. 5 is a further variant in which two or more tapes are welded together in the points%

The Y is thus formed to form a more corrugated hollow pipe with increased pressure resistance, with steady flexibility *

In such double or multi-walled wavy tubes, single-lattices can be made up of different metals or metal alloys and may be of different thickness of seamless bandwidth