DE2045069A1 - - Google Patents

Info

Publication number
DE2045069A1
DE2045069A1 DE19702045069 DE2045069A DE2045069A1 DE 2045069 A1 DE2045069 A1 DE 2045069A1 DE 19702045069 DE19702045069 DE 19702045069 DE 2045069 A DE2045069 A DE 2045069A DE 2045069 A1 DE2045069 A1 DE 2045069A1
Authority
DE
Germany
Prior art keywords
spiral
sheet metal
metal strip
protective tape
mandrel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19702045069
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19702045069 priority Critical patent/DE2045069A1/de
Priority to FR7132634A priority patent/FR2107500A5/fr
Priority to CH1331871A priority patent/CH528933A/en
Publication of DE2045069A1 publication Critical patent/DE2045069A1/de
Pending legal-status Critical Current

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
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • 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
    • B21C37/121—Making tubes or metal hoses with helically arranged seams with non-welded and non-soldered seams
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/16—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
    • 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
    • F16L9/00—Rigid pipes
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • F16L9/165—Rigid pipes wound from sheets or strips, with or without reinforcement of metal

Description

Ober-Ing. Emil Siegwart in Sulzbach WendelfalzrohrOber-Ing. Emil Siegwart in Sulzbach Spiral duct

Die vorliegende Erfindung bezieht sich auf ein mit Schall- und/oder Korrosionsschutz versehenes Wendelfalzrohr, bestehend aus einem an beiden Händern mit Je einem PaIz versehenen schraubenförmig gewundenen Blechband sowie auf ein Verfahren zur Herstellung derartiger Wendelfalzfohre.The present invention relates to a with A spiral duct with soundproofing and / or corrosion protection, consisting of one on both hands with one each PaIz provided helically wound sheet metal strip as well as a method for the production of such spiral folds.

Es ist bereits bekannt (siehe beispielsweise die deutsche Patentschrift 1 821 568). Rohre größeren Durchmessers dadurch herzustellen, dafl ein an den Rändern mit Falzen versehenes Blechband schraubenförmig aufgewickelt wird, wobei mit Hilfe einer geeigneten Vorrichtung die Palze nebeneinanderliegender Windungen des BleohbandesIt is already known (see for example the German patent specification 1 821 568). Manufacture pipes of larger diameter by using one on the edges Sheet metal strip provided with seams wound in a helical shape is, with the help of a suitable device Palze of adjacent turns of the bleoh band

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ineinandergeschoben, umgebogen und zusammengepreßt werden. Derartige Wendelfalzrohre werden insbesondere zum Zu- und Ableiten von Gasen in der Industrie und im Baugewerbe verwendet >be pushed into one another, bent over and pressed together. Such spiral ducts are used in particular for supplying and discharging gases in industry and in the building trade >

In sehr vielen Fällen besteht der Wunsch, durch derartige Wendelfalzrohre korrodierende Medien - beispielsweise ätzende oder sehr heiße Gase - zu leiten. Demzufolge war es notwendig, die zur Herstellung der Wendelfalzrohre verwendeten Blechbänder einer relativ teueren Oberflächenbehandlung zu unterwerfen, damit die auftretenden Korrosionen in Grenzen gehalten werden können.In very many cases there is a desire to conduct corrosive media - for example caustic or very hot gases - through such spiral ducts. As a result, it was necessary to subject the sheet metal strips used to manufacture the spiral ducts to a relatively expensive surface treatment so that the resulting Corrosion can be kept within limits.

Ziel der vorliegenden Erfindung ist es, ein Wendelfalzrohr der obengenannten Art zu schaffen, das diesen Nachteil nicht aufweist, und das selbst in stark ätzenden Umgebungen bzw. beim Leiten stark ätzender Medien einen guten Korrosionsschutz aufweist, wobei gleichzeitig eine zufriedenstellende Schalldämpfung erreicht ist.The aim of the present invention is to provide a spiral-seam tube of the above-mentioned type that this Does not have any disadvantage, even in highly corrosive environments or when conducting highly corrosive media has good corrosion protection, while at the same time satisfactory sound absorption is achieved.

Erfindungsgemäß wird dies dadurch erreicht, daß an der Innen- oder Außenseite des Wendelfalzrohres ein der Form des Bleohbandes angepaßtes, relativ dünne* Schutzband angeordnet ist.According to the invention this is achieved in that one of the inside or outside of the spiral duct Shape of the Bleohband adapted, relatively thin * protective tape is arranged.

Derartige Wendelfalzrohre werden vorzugsweise mitSuch spiral ducts are preferably with

Hilfe einer Wendelfalzrohrmaschine hergestellt, bei welcher das Blechband auf einem drehangetriebenen Dorn aufgewickelt und der zunächst hochstehende, durch nebeneinanderliegende Kanten des Blechbandes gebildete Falz durch Rollen zusammengedruckt und seitlich umgebogen wird, während das bereits fertiggestellte Wendelfalzrohr kontlnu-Manufactured using a spiral seam pipe machine, in which the sheet metal strip is wound on a rotationally driven mandrel and the initially upright fold formed by adjacent edges of the sheet metal strip through Rolls are pressed together and bent to the side, while the already finished spiral duct is continuously

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Bad originalBathroom original

ierlich von dem Dorn heruntergeschoben wird. Im Rahmen der vorliegenden Erfindung wird das dünne Schutzband zweckmäßigerweise gleichzeitig mit dem Blechband schraubenförmig auf den Dorn aufgewickelt.is gently pushed down from the thorn. As part of of the present invention becomes the thin protective tape expediently wound helically onto the mandrel at the same time as the sheet metal strip.

Weitere Einzelheiten der Erfindung sollen im folgenden anhand eines Ausführungsbeispiels näher erläutert und beschrieben werden, wobei auf die beigefügte Zeichnung Bezug genommen 1st, welche schematisch und teilweise im Schnitt ein Wendelfalzrohr gemäß der Erfindung darstellt, welches gerade auf einer Wendelfalzrohrmaschine hergestellt wird.Further details of the invention are to be explained in more detail below with the aid of an exemplary embodiment will be described, reference being made to the accompanying drawing, which is schematically and partially in Shows a section through a spiral duct according to the invention, which is currently being produced on a spiral duct machine.

So wie man anhand der Figur erkennen kann, wird in an sich bekannter Weise ein Wendelfalzrohr dadurch hergestellt, daß ein Blechband 1 schräg auf einen Dorn 2 einer Wendelfalzrohrmaschine aufgewickelt wird. Das Blechband 1 1st auf der einen Seite mit einem L-förmig gebogenen Falz 3 und auf der anderen Seite mit einen U-förmig gebogenen Falz 4 versehen. Beim Aufwickeln des Blechbandes 1 wird der L-förmig gebogene Falz 3 in den U-förmig gebogenen Falz 4 hineingeschoben und mit Hilfe von Rollen 5 und 6 umgebogen und zusammengepreßt.As you can see from the figure, in In a manner known per se, a spiral-seam tube is produced by placing a sheet metal strip 1 at an angle on a mandrel 2 a spiral duct machine is wound. The sheet metal strip 1 1st on one side with an L-shaped curved fold 3 and on the other side with one U-shaped bent fold 4 is provided. When winding up of the sheet metal strip 1 is the L-shaped bent fold 3 in the U-shaped bent fold 4 pushed in and with With the help of rollers 5 and 6 bent and pressed together.

Gemäß der vorliegenden Erfindung 1st an der Innenoder Außenseite des Wendelfalzrohres - je nachdem ob der Korrosionsschutz gegenüber der Außenatmosphäre oder gegenüber dem durch das Wendelfalzrohr zu leitenden Medium bestehen soll- ein der Form des Blechbandes 1 angepaßtes, relativ dünnes Schutzband 7 angeordnet.According to the present invention is on the inside or outside of the spiral duct - depending on whether the Corrosion protection against the outside atmosphere or against the medium to be conveyed through the spiral duct should exist- a relatively thin protective strip 7 adapted to the shape of the sheet metal strip 1 is arranged.

Das Schutzband 7 ist einzig und allein durch die Verklemmung der Falz« 3, 4 an dem Blechband 1 befestigt, so daß zwischen den einzelnen Falzwindungen zwischen den Elementen 1 und 7 ein schmales Luftkissen vorhanden ist. Dieses in der Figur nicht erkennbare LuftkissenThe protective band 7 is attached to the sheet metal band 1 solely by the clamping of the folds 3, 4, so that between the individual folding turns between elements 1 and 7 have a narrow air cushion. This air cushion, which cannot be seen in the figure

2098 12/07 232098 12/07 23

BAD ORIGINALBATH ORIGINAL

erhöht die Wärmeisolierungäselgenschaften eines derartigen Wendelfalzrohres. Da ferner das Schutzband 7 sich üb@r öle ganze Breite de© Blechbandes X erstreckt, kommen die Oberflächen d@s L-fSrmigen Falzes 3 nicht in direkte Berührung mit den Oberflächen des U~f tauigen Falzes 4.Demzufolge ergibt sich b@i geeigneter Wahl des Material© des Sehutzbandes 7 eine gut© Schallisolierung, weil die einzelnen, spiralförmigen Wicklungen des Stahlbandes I akustisch gegeneinander isoliert sind.increases the thermal insulation properties of such Spiral duct. Furthermore, since the protective tape 7 oils itself over the entire width of the sheet metal strip X extends, the surfaces come The L-shaped fold 3 does not come into direct contact with the surfaces of the U ~ f fold 4 b @ i a suitable choice of the material © of the protective tape 7 good sound insulation because the individual, spiral windings of the steel strip I are acoustically isolated from one another.

Ein derartiges Wendelfalzrohr kann vorzugsweise dadurch hergestellt werden, daß das Schutzband 7 gleichseitig mit dem Blechband 1 schraubenförmig auf den Dorn 2 der Wendelfalzrohnnasehine aufgewickelt wird. In diesem Fall muß einzig und allein zusätzlich an der Wendelfalzrohrmaschine eine Abgabe- und Verformelnrlchtung für das Schutzband 7 vorgesehen sein.Such a spiral-seam tube can preferably be produced in that the protective tape 7 is on the same side with the sheet metal strip 1 is wound helically onto the mandrel 2 of the spiral-seam tube. In this The only thing that needs to be done on the spiral-seam pipe machine is a dispensing and processing device for the Protective tape 7 may be provided.

Das Schutzband 7 kann entweder aus einer Metallfolie - beispielsweise aus Aluminiurafoli© - oder einem organischen Material » wie Gummi^ Teflon oder Polyäthylen - bestehen. The protective tape 7 can either consist of a metal foil - For example from Aluminiurafoli © - or an organic one Material such as rubber, Teflon or polyethylene are made.

Es liegt somit in der Hand dee Fachmannes« durch geeignete Wahl des Materials der Schutzschicht 7 ein Wendelfallrohr herzustellen, welches für einen bestimmten Anwendungefall die gewünschten Korrosions-, Wärmeschutz- und/ oder schallisolierenden Eigenschaften aufweist.It is therefore in the hands of the skilled person through appropriate Choice of the material of the protective layer 7 a spiral downpipe to produce which one is suitable for a specific application the desired corrosion, heat protection and / or has sound-insulating properties.

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BAD ORIGINALBATH ORIGINAL

Claims (3)

PatentansprücheClaims 1. Mit Schall» und /oder Korrosionsschutz versehenes Wendelfalzrohr, bestehend aus einem an beiden Händern mit Je einem Falz versehenen schraubenförmig gewundenen Blechband, dadurch gekennzeichnet, daß an der Innen» oder Außenseite des Wendelfalzrohres ein der Form des Blechbandes (1) angepaßtes, relativ dünnes Schutzband (7) angeordnet ist.1. Spiral folded pipe with noise protection and / or corrosion protection, consisting of one on both hands with each helically wound sheet metal band with a rebate, characterized in that on the inside or outside of the spiral-seam tube one of the shape of the sheet metal strip (1) adapted, relatively thin protective tape (7) is arranged. 2. Wendelfalzrohr nach Anspruch 1, dadurch g e k e η η ζ ο i c h η β t, daJ das Schutzband (7) nur im Bereich der Falzverbindung (j, 4) an dem Wendelfalzrohr befestigt ist.2. spiral folded pipe according to claim 1, characterized in that g e k e η η ζ ο i c h η β t, that the protective tape (7) is only in the area of the Seam connection (j, 4) is attached to the spiral seam tube. 3. Vorrichtung zur Herstellung von Wendelfalzrohren nach Anspruch 1 oder 2, mit Hilfe einer Wendelfalzrohrmaschine, bei welcher das Blechband auf einem drehangetriebenen Dorn aufgewickelt und der zunächst hochstehende Falz, welcher durch nebeneinander liegende Kanten des Blechbandes gebildet 1st, durch Rollen zusammengedrückt und seitlich umgebogen wird, während das bereits fertiggestellte Wendelfalzrohr kontinuierlich von dem Dorn heruntergeschoben wird, dadurch g · kenn ze i ehnet, daß das dünne Schutzband (?) gleichzeitig mit dem Blechband (1) schraubenförmig auf den Dorn (2) aufgewickelt wird.3. Device for the production of spiral ducts according to Claim 1 or 2, with the help of a spiral duct machine, in which the sheet metal strip on a rotary driven mandrel wound up and the first upright fold, which is formed by adjacent edges of the sheet metal strip 1st, compressed by rolling and bent to the side is, while the already finished spiral duct is continuously pushed down from the mandrel, in this way it is shown that the thin protective tape (?) helical at the same time as the sheet metal strip (1) is wound onto the mandrel (2). 209812/0723209812/0723 BADBATH LeerseiteBlank page
DE19702045069 1970-09-11 1970-09-11 Pending DE2045069A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19702045069 DE2045069A1 (en) 1970-09-11 1970-09-11
FR7132634A FR2107500A5 (en) 1970-09-11 1971-09-09
CH1331871A CH528933A (en) 1970-09-11 1971-09-10 Spiral folded pipe and process for its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702045069 DE2045069A1 (en) 1970-09-11 1970-09-11

Publications (1)

Publication Number Publication Date
DE2045069A1 true DE2045069A1 (en) 1972-03-16

Family

ID=5782222

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702045069 Pending DE2045069A1 (en) 1970-09-11 1970-09-11

Country Status (3)

Country Link
CH (1) CH528933A (en)
DE (1) DE2045069A1 (en)
FR (1) FR2107500A5 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509447A (en) * 1981-07-10 1985-04-09 Universal Spiralweld Enterprises, Inc. Helical seamed structural vessel and method of forming same
WO1988000129A1 (en) * 1986-07-03 1988-01-14 Rib Loc Australia Pty. Ltd. Method of and means for producing reinforced ribbed structures
DE4410593A1 (en) * 1994-03-26 1995-09-28 Troisdorfer Bau & Kunststoff Container for hazardous liquids

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503383A1 (en) * 1985-02-01 1986-08-07 Hoechst Ag, 6230 Frankfurt VINYL CHLORIDE POLYMER-BASED FILM AND THEIR USE FOR PRODUCING STIFF TUBULAR BODIES
WO1989011963A1 (en) * 1988-06-02 1989-12-14 Ametex Ag Plastic profiled strip
NL8801702A (en) * 1988-07-05 1990-02-01 Redeco Ag FLEXIBLE, ONE-WAY FLEXIBLE HOSE.
DE4030844A1 (en) * 1990-05-22 1992-04-09 Laco Sa Oval or circular, hollow fluid conductor - has jacketed outer tube, formed by spiral winding and reading of sheet meal strips
GB9221093D0 (en) * 1992-10-07 1992-11-18 Protol Ag Improvements in and relating to machines for forming helically wound lock-seam tubing having multiple wall thickness

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509447A (en) * 1981-07-10 1985-04-09 Universal Spiralweld Enterprises, Inc. Helical seamed structural vessel and method of forming same
WO1988000129A1 (en) * 1986-07-03 1988-01-14 Rib Loc Australia Pty. Ltd. Method of and means for producing reinforced ribbed structures
US4977931A (en) * 1986-07-03 1990-12-18 Rib Loc Australia Pty. Ltd. Method of producing reinforced ribbed tubes
DE4410593A1 (en) * 1994-03-26 1995-09-28 Troisdorfer Bau & Kunststoff Container for hazardous liquids

Also Published As

Publication number Publication date
CH528933A (en) 1972-10-15
FR2107500A5 (en) 1972-05-05

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