CH290598A - Method and device for the treatment of the surface of helically grooved tubes manufactured in a continuous operation. - Google Patents

Method and device for the treatment of the surface of helically grooved tubes manufactured in a continuous operation.

Info

Publication number
CH290598A
CH290598A CH290598DA CH290598A CH 290598 A CH290598 A CH 290598A CH 290598D A CH290598D A CH 290598DA CH 290598 A CH290598 A CH 290598A
Authority
CH
Switzerland
Prior art keywords
cylinder
tube
head
continuous operation
helically grooved
Prior art date
Application number
Other languages
German (de)
Inventor
Vadotub Aktiengesellschaft
Original Assignee
Vadotub Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vadotub Aktiengesellschaft filed Critical Vadotub Aktiengesellschaft
Publication of CH290598A publication Critical patent/CH290598A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C7/00—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12—Making tubes or metal hoses with helically arranged seams
    • B21C37/124—Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/151—Coating hollow articles
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B29C48/153—Coating both inner and outer surfaces
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/22—Corrugating
    • B29C53/30—Corrugating of tubes
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/583—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features
    • B29C53/585—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features the cross-section varying along their axis, e.g. tapered, with ribs, or threads, with socket-ends
    • B29C53/586—Winding and joining, e.g. winding spirally helically for making tubular articles with particular features the cross-section varying along their axis, e.g. tapered, with ribs, or threads, with socket-ends having corrugations
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/205—Corrugating tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Description

       

      Verfahren    und     Vorrichtung        zur    Behandlung der Oberfläche     schraubenförmig        gerillter,     in fortlaufendem     Arbeitsgang    hergestellter     Scbläuehe.       Es sind Verfahren zur Herstellung von  biegsamen, schraubenförmig gerillten Schläu  chen praktisch unbeschränkter Länge bekannt,  die aus Bändern verschiedenster Stoffe, wie  zum Beispiel aus Metall, Papier, Asbest,       Kunststoff,    hergestellt sind.

   Vielfach haben  diese Stoffe     jedoch    nicht die Eigenschaften,  die von der Oberfläche des fertigen Schlau  ches verlangt werden, die aber aus andern  Gründen für die Schläuche erwünscht sind.  



  Die vorliegende Erfindung betrifft ein     Ver,     fahren und     eine        Vorrichtung,    um solche  Schläuche durch geeignete Oberflächenbe  handlung     für    die geforderten Zwecke brauch  bar zu machen. Das Verfahren nach der     Er-          findung    besteht darin, dass das Rohr unmit  telbar nach der schraubenförmigen     Rillung     und nach dem     Zusammenpressen    der Rillen  bis zur     gegenseitigen    Berührung ihrer Flanken  mit einem homogenen Schutzüberzug versehen  wird.  



  Der Schutzüberzug kann aus einem     Farb-          oder    Lackanstrich oder aus einer Hülle aus  Kunststoff oder Gummi bestehen und aussen  und innen auf den Schlauch aufgebracht wer  den. Gegebenenfalls kann mit dem Überzug  auch eine Imprägnierung der Rohrwandung  mit dem     aufzutragenden    Mittel erfolgen. Das  Auftragen der Stoffe für die Oberflächen  behandlung kann auf verschiedene Art erfol  gen, so durch Streichen,- Zerstäuben, Spritzen,    Bürsten, Durchpressen durch eine Düse oder  dergleichen.  



  Die Vorrichtung zur Durchführung des  Verfahrens nach der Erfindung; die sich     für     die     Anbringung    des Schutzüberzuges beson  ders eignet, ist dadurch     gekennzeichnet,    dass  hinter der Gewindefassung zur schraubenför  migen     Rillung    ein Hohlzylinder angeordnet  ist, dessen Hohlraum mit einem Vorratsbehäl  ter für das aufzutragende Mittel verbunden  ist.  



       In    der Zeichnung ist eine     beispielsweise     Ausführungsform der Vorrichtung zur Durch  führung des Verfahrens im     Längsschnitt    sche  matisch dargestellt. An Hand derselben wird  im folgenden auch das Verfahren selbst bei  spielsweise erläutert.  



  Mit 1 ist der im Maschinengestell 2 befe  stigte hohle Wickeldorn bezeichnet, den die       Hülse    3 mit dem Gewindeansatz 4 durchsetzt,  welche im     Gestell    drehbar gelagert ist und  durch das Kettenrad 5 in Drehung versetzt  wird. Der Gewindeansatz 4 bildet mit der als  Kettenrad 6 ausgebildeten Mutter 7 die Ge  windefassung zur     schraubenförmigen        Rillung     des durch Bewickeln des     Dornes    1 mit den       Bändern    8, 9 gebildeten glatten Rohres 10:  Die Bänder werden von nicht dargestellten,  um den Dorn laufenden Vorratsspulen abge  zogen.

   Hinter der Gewindefassung 4, 7 ist ein  Hohlzylinder 11 angeordnet, der eine Ring-           kammer        12    enthält, welche über ein Rohr 13  mit einem     nicht    dargestellten Vorratsbehälter  für das aufzutragende,     in    flüssiger Form zu  geführte Mittel verbunden ist. Zu beiden Sei  ten der     Ringkammer    12 ist je eine Stopfbüchse  angeordnet, deren     Brille    14 bzw. 15 gegen den  Packungsring 16 bzw. 17 drückt, welcher sich  gegen den Mantel des hergestellten     Rohres    10'  mit regelbarem Druck anlegt. Die Brille 14       _ist    an ihrer Innenseite mit Längsriefen 18 ver  sehen.

   Das von der Gewindefassung 4, 7 kom  mende, auf einem zylindrischen, längsge  schlitzten, federnden Ansatz 3' sich abstüt  zende gewellte Rohr     wird    durch die Brille  am Vorschub gehemmt und gegen Drehung  gesichert, so dass die     Weilen    des Rohres bis       zur    gegenseitigen     Berührung    ihrer     Flanken     zusammengeschoben werden. Die Brille 15  wird so angezogen, dass der aus der Kammer  12 vom Mantel des     hergestellten    Rohres 10'  aufgenommene Überzug die     gewünschte    Stärke  aufweist, wozu die Packung vorteilhaft aus  elastischem Werkstoff besteht.

   Gegebenenfalls  kann aber an Stelle der Stopfbüchse an der  Austrittsseite des Rohres 10' aus dem Zylinder  11 eine mit dem Rohrmantel eine Ringdüse 19  bildende, kegelförmig sich verjüngende Aus  drehung 20 vorgesehen sein, wie dies aus     Fig.    2  ersichtlich ist, was insbesondere dann von Vor  teil ist, wenn das aufzutragende Mittel zäh  flüssig ist. Innerhalb der Hülse 3 ist ein Rohr  21 angeordnet, dessen freies Ende den Zylin  der 11 durchsetzt und einen zylindrischen  Kopf 22 trägt, welcher mit seinem Mantel  knapp an die Innenfläche des Rohres 10'  heranreicht und eine Ringnut 23     aufweist,    von  welcher radiale     Bohrungen    24 in das Innere  des Kopfes 22 bzw. des Rohres 21 führen.

   Dem  Rohr 21 wird das aufzutragende Mittel über  eine nicht dargestellte     Piunpe        zugefördert.     An der Stirnseite des Kopfes 22 ist eine Stange  25 befestigt, die eine Zylinderbürste 26 trägt,  welche zur vollkommenen Verteilung des auf  getragenen Mittels dient. Mit der beschrie  benen     Vorrichtung        können    alle Arten von  Farben, Lacken, Ölen,     Imprägnierungsmitteln     aufgetragen, gegebenenfalls auch Auflagen  oder Einlagen aus Kautschuk oder derglei-         ehen    aufgebracht werden, wenn der Dingkam  mer 12 bzw. dem Verteilerkopf (Ringnut 23)  eine zähflüssige Kautschukmilch zugeführt.

         wird.    Beim Durchgang des Rohres durch die       Ringkammer    12 bzw. beim     Vorbeistreichen    an  der Ringnut 23 wird je nach dem Zähigkeits  grad der Kautschukmilch die Stärke des Über  zuges beeinflusst, so dass sieh die     'Überzüge     (Einlagen) aus Bädern, die auf die günstigste  Konzentration eingestellt sind, einwandfrei im  Zuge der Herstellung des Rohres bilden kön  nen. Zur Regelung der Stärke des aufgebrach  ten Überzuges kann auch der Ringspalt der  Düse 19 bzw. der Spalt zwischen dem Mantel  des Kopfes 22 und der Innenfläche     des        erzeLig-          ten    Rohres dienen.

   Die     Vulkanisierung    kann  durch Besprühen der Auf- bzw. Einlage mit  gespanntem Wasserdampf erfolgen, wobei ge  gebenenfalls auch Ultrabeschleuniger Anwen  dung finden können. Bei Gummieinlagen im  Rohr 10' kann der Dampf durch ein innerhalb  des Rohres 21 liegendes Röhrchen, das den  Kopf 22 durchsetzt, eingesprüht werden.  



  Die     Vorrichtung    zum Aufbringen des  Überzuges auf die     Oberfläche    des Rohres 10'  ist nicht an die beschriebene Ausführungsform  gebunden. So kann an Stelle der beschriebenen  Riefen 18 an der     Stopfbüehsenbrille    14 irgend  eine andere bekannte Vorrichtung zum Zu  sammenschieben der Wellen     des    Rohres, zum  Beispiel ein gezahntes, geteiltes Futter oder  dergleichen, verwendet werden. Das Auftra  gen des Überzuges kann aber auch durch  Bürsten,     Zerstäuberdüsen,    Umpressen und  dergleichen durchgeführt werden.



      Method and device for treating the surface of helically grooved blue stains produced in a continuous operation. There are known methods for the production of flexible, helically grooved hoses of practically unlimited length, which are made from strips of various substances, such as metal, paper, asbestos, plastic.

   In many cases, however, these substances do not have the properties that are required of the surface of the finished hose, but which are desirable for the hoses for other reasons.



  The present invention relates to a method, drive and a device to make such tubes by suitable surface treatment for the required purposes usable bar. The method according to the invention consists in providing the pipe with a homogeneous protective coating immediately after the helical grooving and after the grooves have been pressed together until their flanks touch one another.



  The protective coating can consist of a paint or varnish or a cover made of plastic or rubber and applied to the outside and inside of the hose who the. If necessary, the coating can also be used to impregnate the pipe wall with the agent to be applied. The substances for surface treatment can be applied in various ways, for example by painting, atomizing, spraying, brushing, pressing through a nozzle or the like.



  The device for performing the method according to the invention; which is particularly suitable for attaching the protective coating, is characterized in that a hollow cylinder is arranged behind the threaded socket for the screw-shaped grooving, the cavity of which is connected to a Vorratsbehäl ter for the agent to be applied.



       In the drawing, an example embodiment of the device for implementing the method is shown cally in longitudinal section. Using the same, the method itself is explained in the following for example.



  1 with the BEFE in the machine frame 2 denotes the hollow winding mandrel, which penetrates the sleeve 3 with the threaded extension 4, which is rotatably mounted in the frame and is set in rotation by the sprocket 5. The threaded extension 4 forms with the nut 7 designed as a sprocket 6, the Ge thread mount for the helical grooving of the smooth tube 10 formed by winding the mandrel 1 with the bands 8, 9: The bands are drawn from supply spools, not shown, running around the mandrel.

   Behind the threaded mount 4, 7 a hollow cylinder 11 is arranged which contains an annular chamber 12 which is connected via a tube 13 to a storage container, not shown, for the agent to be applied and supplied in liquid form. On both Be th of the annular chamber 12 a stuffing box is arranged, the glasses 14 and 15 press against the packing ring 16 and 17, which rests against the jacket of the pipe 10 'produced with adjustable pressure. The glasses 14 _ist see ver on their inside with longitudinal grooves 18.

   The coming from the threaded socket 4, 7 coming, on a cylindrical, Längsge slotted, resilient approach 3 'support Zende corrugated tube is inhibited by the glasses on the feed and secured against rotation, so that the while of the tube until their flanks touch each other be pushed together. The glasses 15 are put on in such a way that the coating received from the chamber 12 by the jacket of the pipe 10 'produced has the desired thickness, for which purpose the packing advantageously consists of an elastic material.

   If necessary, however, instead of the stuffing box on the exit side of the pipe 10 'from the cylinder 11, a conical tapering off rotation 20 forming an annular nozzle 19 with the pipe jacket can be provided, as can be seen from FIG part is when the agent to be applied is viscous. Inside the sleeve 3, a tube 21 is arranged, the free end of which passes through the cylinder 11 and carries a cylindrical head 22, which with its jacket just reaches the inner surface of the tube 10 'and has an annular groove 23, of which radial bores 24 in the interior of the head 22 or the tube 21 lead.

   The agent to be applied is fed to the tube 21 via a pin (not shown). On the end face of the head 22, a rod 25 is attached, which carries a cylinder brush 26, which is used for the complete distribution of the carried agent. With the device described enclosed, all kinds of paints, varnishes, oils, impregnating agents can be applied, if necessary also rubber pads or inserts can be applied when the thing chamber 12 or the distributor head (annular groove 23) is supplied with a viscous rubber milk.

         becomes. When the pipe passes through the annular chamber 12 or when sweeping past the annular groove 23, the strength of the over train is influenced depending on the viscosity of the rubber milk, so that you can see the 'coatings (deposits) from baths that are set to the most favorable concentration able to form properly in the course of the manufacture of the pipe. The annular gap of the nozzle 19 or the gap between the jacket of the head 22 and the inner surface of the pipe produced can also be used to regulate the thickness of the applied coating.

   The vulcanization can be carried out by spraying the pad or insert with pressurized steam, and ultra-accelerators can also be used if necessary. In the case of rubber inserts in the tube 10 ′, the steam can be sprayed in through a tube located inside the tube 21 and penetrating the head 22.



  The device for applying the coating to the surface of the tube 10 'is not restricted to the embodiment described. Thus, instead of the described grooves 18 on the gland box 14, any other known device for pushing the shafts of the pipe together, for example a toothed, split lining or the like, can be used. However, the application of the coating can also be carried out by brushing, atomizing nozzles, pressing and the like.

Claims (1)

PATENTANSPRÜCHE I. Verfahren zur Behandlung der Ober fläche schraubenförmig gerillter, in fortlau fendem Arbeitsgang hergestellter Schläuche, dadurch gekennzeichnet, dass das Rohr un mittelbar nach der schraubenförmigen Rillung und nach dem Zusammenpressen der Rillen bis zur gegenseitigen Berührung ihrer Flanken mit einem homogenen Schutzüberzug versehen wird. PATENT CLAIMS I. A method for treating the surface of helically grooved hoses produced in a continuous operation, characterized in that the pipe is provided with a homogeneous protective coating immediately after the helical grooves and after the grooves are pressed together until their flanks touch each other. II. Vorrichtung zur Durchführung des Verfahrens nach Patentanspruch I, dadurch gekennzeichnet, dass hinter der Gewindefas sung (4, 7) zur schraubenförmigen Rillung ein Hohlzylinder (11) angeordnet ist, dessen Hohlraum (12) mit einem Vorratsbehälter für das aufzutragende Mittel verbunden ist. UNTERANSPRÜCHE: 1. Vorrichtung nach Patentanspruch II, dadurch gekennzeichnet, dass die Mündungen des Zylinders (11) mit Stopfbüchsen (14, 16 bzw. 15, 17) versehen sind.. 2. II. Device for carrying out the method according to claim I, characterized in that a hollow cylinder (11) is arranged behind the threaded socket (4, 7) for the helical grooving, the cavity (12) of which is connected to a storage container for the agent to be applied. SUBClaims: 1. Device according to claim II, characterized in that the mouths of the cylinder (11) are provided with stuffing boxes (14, 16 or 15, 17) .. 2. Vorrichtung nach Patentanspruch II, gekennzeichnet durch ein .den hohlen Wickel- dorn (1), die Gewindefassung (4, 7) und den Zylinder (11) durchsetzendes Rohr (21) -mit einem an dessen Ende vorgesehenen zylindri schen Kopf (22), der eine Ringnut (23) auf weist, von der radiale Bohrungen (24) in das Innere des Kopfes (22) bzw: des Rohres (21) führen. 3. Vorrichtung nach Unteranspruch 2, da= durch gekennzeichnet, dass an der Stirnseite des Kopfes (22) eine Zylinderbürste (26) be festigt ist. Device according to patent claim II, characterized by a tube (21) passing through the hollow winding mandrel (1), the threaded socket (4, 7) and the cylinder (11) with a cylindrical head (22) provided at its end, which has an annular groove (23), lead from the radial bores (24) into the interior of the head (22) or: the tube (21). 3. Device according to dependent claim 2, da = characterized in that a cylinder brush (26) is fastened to the end face of the head (22).
CH290598D 1950-05-09 1951-03-16 Method and device for the treatment of the surface of helically grooved tubes manufactured in a continuous operation. CH290598A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT2688906X 1950-05-09
AT290598X 1950-05-26
AT716183X 1950-05-26
AT856123X 1950-05-26

Publications (1)

Publication Number Publication Date
CH290598A true CH290598A (en) 1953-05-15

Family

ID=27422322

Family Applications (1)

Application Number Title Priority Date Filing Date
CH290598D CH290598A (en) 1950-05-09 1951-03-16 Method and device for the treatment of the surface of helically grooved tubes manufactured in a continuous operation.

Country Status (2)

Country Link
CH (1) CH290598A (en)
DE (1) DE856123C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE544395A (en) * 1955-01-17
DE2619129C2 (en) * 1976-04-30 1982-04-15 Ziegelwerke Heinrich Oltmanns, 2905 Edewecht Corrugated tube made of thermoplastic plastic material made from an extruded hose
DE4320361C2 (en) * 1993-06-19 2001-04-05 Kabelmetal Electro Gmbh Process for the production of a corrosion-protected corrugated metal pipe

Also Published As

Publication number Publication date
DE856123C (en) 1952-11-20

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