CH202285A - Process for producing a welded connection between pipes. - Google Patents

Process for producing a welded connection between pipes.

Info

Publication number
CH202285A
CH202285A CH202285DA CH202285A CH 202285 A CH202285 A CH 202285A CH 202285D A CH202285D A CH 202285DA CH 202285 A CH202285 A CH 202285A
Authority
CH
Switzerland
Prior art keywords
pipes
collar
nipple
welded
producing
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Gebr Sulzer
Original Assignee
Sulzer Ag
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 Sulzer Ag filed Critical Sulzer Ag
Publication of CH202285A publication Critical patent/CH202285A/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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/02—Welded joints
    • F16L13/0218—Welded joints having an inner or outer ring
    • F16L13/0227—Welded joints having an inner or outer ring having an inner ring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Description

  

  Verfahren zur Herstellung einer Schweissverbindung von Rohren.    Die Erfindung betrifft ein Verfahren zur  Herstellung einer Schweissverbindung von  Rohren, insbesondere von Druckleitungsrohren  z. B. für Hochdruckkessel, bei der die Rohr  enden     aneinandergeschweisst    und durch einen  Nippel gegen das Rohrinnere abgedeckt sind.  Die Erfindung besteht darin, dass ein Nippel  Verwendung findet, der aussen einen zwischen  die Rohrenden eingreifenden, eine andere als  rechteckige Form aufweisenden Bund besitzt,  so dass bei der     Verschweissung    der Rohrenden  der Bund     mitverschweisst    und dadurch die  Bildung von Hohlräumen am Grunde der  Schweissnaht vermieden wird. Der Nippel kann  beispielsweise einen zugespitzten oder einen  nach aussen abgerundeten Bund aufweisen.  



  Ein Beispiel einer nach dem erfindungs  gemässen Verfahren hergestellten Rohrverbin  dung ist auf der Zeichnung schematisch dar  gestellt, wobei auf der obern Seite der Achse  die     Schweissung    noch nicht vollzogen, auf der  untern Seite dagegen vollzogen ist.  



  Die Rohrenden 1 und 2, z. B. einer Druck  leitung für     Hochdruckdampferzeuger,        werdet       durch einen Nippel 3 vereinigt. Der Nippel 3  besitzt einen zugespitzten Bund 4. Der Bund  4 könnte aber auch abgerundet sein. Dieser  Bund ermöglicht eine bessere     Verschweissung     des Nippels mit den Rohrenden 1 und 2.  Durch diese     Verschweissung    wird eine Bildung  von Hohlräumen am Grunde der Schweissnaht  vermieden, so dass die Dichtheit der Rohre  gewährleistet ist.



  Process for producing a welded connection between pipes. The invention relates to a method for producing a welded joint of pipes, in particular pressure line pipes z. B. for high-pressure boilers in which the pipe ends are welded together and covered by a nipple against the inside of the pipe. The invention consists in the use of a nipple which on the outside has a collar that engages between the pipe ends and has a shape other than rectangular, so that the collar is also welded when the pipe ends are welded and the formation of cavities at the bottom of the weld seam is avoided . The nipple can, for example, have a pointed collar or a collar that is rounded towards the outside.



  An example of a pipe connection produced according to the fiction, according to the method is shown schematically in the drawing, with the welding not yet completed on the upper side of the axis, while it has been completed on the lower side.



  The pipe ends 1 and 2, for. B. a pressure line for high pressure steam generator, are united by a nipple 3. The nipple 3 has a pointed collar 4. The collar 4 could also be rounded. This collar enables better welding of the nipple to the pipe ends 1 and 2. This welding prevents the formation of cavities at the bottom of the weld seam, so that the pipes are sealed.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung einer Schweiss verbindung von Rohren, insbesondere von Druckleitungsrohren, bei der die Rohrenden aneinandergeschweisst und durch einen Nippel gegen das Rohrinnere abgedeckt sind, dadurch gekennzeichnet, dass ein Nippel Verwendung findet, der aussen einen zwischen die Rohr enden eingreifenden, eine andere als recht eckige Form aufweisenden Bund besitzt, so dass bei der Verschweissung der Rohrenden der Bund mitverschweisst und dadurch die Bildung von Hohlräumen am Grunde der Schweissnaht vermieden wird, UNTERANSPRÜCHE: 1. Claim: A method for producing a welded connection of pipes, in particular pressure pipes, in which the pipe ends are welded to one another and covered by a nipple against the inside of the pipe, characterized in that one nipple is used, the outside one engaging between the pipe ends, another has a right-angled collar, so that when the pipe ends are welded, the collar is also welded and the formation of cavities at the bottom of the weld seam is avoided, SUBClaims: 1. Verfahren naeh Patentanspruch, dadurch gekennzeichnet, dass der Nippel aussen einen zugespitzten Bund aufweist. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass der Nippel aussen einen abgerundeten Bund aufweist. Method according to patent claim, characterized in that the nipple has a pointed collar on the outside. 2. The method according to claim, characterized in that the nipple has a rounded collar on the outside.
CH202285D 1937-12-16 1937-12-16 Process for producing a welded connection between pipes. CH202285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH202285T 1937-12-16

Publications (1)

Publication Number Publication Date
CH202285A true CH202285A (en) 1939-01-15

Family

ID=4443188

Family Applications (1)

Application Number Title Priority Date Filing Date
CH202285D CH202285A (en) 1937-12-16 1937-12-16 Process for producing a welded connection between pipes.

Country Status (1)

Country Link
CH (1) CH202285A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962622C (en) * 1952-03-29 1957-04-25 Siepmann Werke Ag Process for the production of a valve body by flash and arc welding using insert profiles
DE1182374B (en) * 1958-10-30 1964-11-26 Foster Wheeler Ltd Process for arc fusion welding of butt joint pipe ends
US4611830A (en) * 1981-03-09 1986-09-16 Von Ahrens Roger W Partially consumable spacer chill rings and their use in welding pipe joints
US4652019A (en) * 1984-03-09 1987-03-24 Robvon Backing Ring Company Partially consumable spacer chill ring

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962622C (en) * 1952-03-29 1957-04-25 Siepmann Werke Ag Process for the production of a valve body by flash and arc welding using insert profiles
DE1182374B (en) * 1958-10-30 1964-11-26 Foster Wheeler Ltd Process for arc fusion welding of butt joint pipe ends
US4611830A (en) * 1981-03-09 1986-09-16 Von Ahrens Roger W Partially consumable spacer chill rings and their use in welding pipe joints
US4652019A (en) * 1984-03-09 1987-03-24 Robvon Backing Ring Company Partially consumable spacer chill ring

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