DE875742C - Welded nipple connection - Google Patents

Welded nipple connection

Info

Publication number
DE875742C
DE875742C DEM3911D DEM0003911D DE875742C DE 875742 C DE875742 C DE 875742C DE M3911 D DEM3911 D DE M3911D DE M0003911 D DEM0003911 D DE M0003911D DE 875742 C DE875742 C DE 875742C
Authority
DE
Germany
Prior art keywords
ring
pipe
nipple connection
iron ring
sleeve
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.)
Expired
Application number
DEM3911D
Other languages
German (de)
Inventor
Josef Barth
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.)
Vodafone GmbH
Original Assignee
Mannesmannroehren Werke 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
Priority to DEM5984D priority Critical patent/DE853686C/en
Application filed by Mannesmannroehren Werke AG filed Critical Mannesmannroehren Werke AG
Priority to DEM3911D priority patent/DE875742C/en
Application granted granted Critical
Publication of DE875742C publication Critical patent/DE875742C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/035—Seam welding; Backing means; Inserts with backing means disposed under the seam
    • 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)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Arc Welding In General (AREA)

Description

Die Erfindung betrifft eine weitere Ausbildung einer' Schweißverbindung nach Patent 853 686 mit beiderseits aufgemuffteri Rohrenden und eingeleg= tem Nippel, bei der die Schweißfuge von. einem geschlitzten schmalen, flachen--Eisenring . uterlegt ist. Bei einer Nippelschweißmuffenverbindung, bei der ,die Muffenenden innerhalb der zulässigen Toleranzen ungleiche Innendurchmesser haben, wird an dem Rohrende mit größerem Innendurchmesser keine einwandfreie Anlage erreicht. . .The invention relates to a further embodiment of a 'welded joint according to patent 853 686 with pipe ends lugged on both sides and inserted nipples, where the weld joint of. a slotted, narrow, flat iron ring. laid down is. In the case of a nipple welded socket connection, the socket ends inside the allowable tolerances will have unequal inside diameters at the end of the pipe a flawless system cannot be achieved with a larger inner diameter. . .

Gemäß der Erfindung wird dieser Nachteil. dadurch vermieden., daß der eingelegte Eisenring im Querschnitt senkrecht zur Rohrachse nach außengebogen ist. Zweckmäßig ist der größte Durchmesser des Ringes etwas größer als -der größtmögliche innere Durchmesser der Muffenenden. Zur besseren Nachgiebigkeit kann der. Ring an beiden Seitenrändern mit schlitzartigen Einschnitten versehen sein.According to the invention, this disadvantage becomes. avoided. that the inserted iron ring is bent outward in cross section perpendicular to the pipe axis is. The largest diameter of the ring is expediently slightly larger than the largest possible inner diameter of the socket ends. For better compliance, the. Ring on be provided with slot-like incisions on both side edges.

Die Erfindung wird durch die Abb. i und 2, die Längsschnitte durch die Verbindung zeigen, erläutert. In den Abbildungen ist a der Nippel, b und bi sind die aufgemufften Rohrenden, c ist eine.Aüssparung, in die der erfindungsgemäße Eisenring d eingelegt ist.The invention is illustrated by Figs. I and 2, the longitudinal sections through show the connection explains. In the figures, a is the nipple, b and bi are the socketed pipe ends, c is ein.Aüssparung in which the inventive Iron ring d is inserted.

Die Abb. i zeigt" eine Verbindun.g,. bei der die . Innendurchmesser der Muffe gleich sind.Fig. I shows "a connection in which the. Inner diameter the sleeve are the same.

Nach Abb. ,a ist der Innendurchmesser der Muffe b1 größer als der der Muffe b. Das Einlegen des Ringes d. geht wie folgt vor sich: Der gebogene Ring wird mit etwas Vorspannun:g in die Aussparung des Nippels und dabei zum Teil unter die auf den Nippel aufgeschrumpfte Muffe b ,geschöben-Hierauf_wird die Muffe bi herangefahren und durch eine Kettenknarre oder ein Spannschloß auf den gebogenen Ring d so weit herangezogen, bis die gewünschte Schweißspaltbreite .erreicht ist.According to Fig. A, the inner diameter of the sleeve b1 is larger than the the sleeve b. Inserting the ring d. goes like this: The curved ring is with a little preload into the recess of the nipple and partly under the sleeve b, which is shrunk onto the nipple, is pushed onto the sleeve bi brought up and turned on the curved by a chain ratchet or a turnbuckle Ring d pulled in until the desired welding gap width is reached.

Außer dem Vorteil der besseren Anlage des Ringes auch bei Rohren ungleicher Innendurchmesser wird noch, auch bei Muffen gleichen Durchmessers, der Fortschritt erreicht, daß das Einbringen des gebogenen Ringes viel eindacher und schneller vor sich geht als, das eines flachen Ringes.In addition to the advantage of better contact with the ring, even with unequal pipes Inside diameter, even with sleeves of the same diameter, progress will still be made achieves that the introduction of the curved ring is much simpler and faster goes as that of a flat ring.

Außerdem erfolgt beim Zusammenfahren der beiden. Rohrenden ,durch den festen Sitz von Ring und Nippel zueinander eine Zentrierung der Rohrenden gegeneinander, so daß eine einwandfreie Schweißung gewährleistet ist.Also takes place when the two move together. Pipe ends, through the tight fit of the ring and nipple to each other a centering of the pipe ends against each other, so that a perfect weld is guaranteed.

Claims (1)

PATENTANSPRUCH: Rohrstumpfschweißverbindung mit beiderseits aufgemufften Rohrenden und eingelegtem Nippel nach Patent 853 686, wobei .die Schweißfuge. von einem geschlitzten schmalen Eisenring unterlegt ist, dadurch gekennzeichnet, daß der eingelegte Eisenring im Querschnitt senkrecht zur Rohrachse nach außengebogen ist.PATENT CLAIM: Pipe butt weld connection with sleeve joints on both sides Pipe ends and inserted nipple according to patent 853 686, whereby .die weld joint. from is underlaid with a slotted narrow iron ring, characterized in that the inserted iron ring is bent outward in cross section perpendicular to the pipe axis is.
DEM3911D 1944-01-07 1944-07-09 Welded nipple connection Expired DE875742C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEM5984D DE853686C (en) 1944-01-07 1944-01-07 Pipe butt weld connection with pipe ends lugged on both sides and inserted nipple
DEM3911D DE875742C (en) 1944-01-07 1944-07-09 Welded nipple connection

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEM5984D DE853686C (en) 1944-01-07 1944-01-07 Pipe butt weld connection with pipe ends lugged on both sides and inserted nipple
DEM3911D DE875742C (en) 1944-01-07 1944-07-09 Welded nipple connection

Publications (1)

Publication Number Publication Date
DE875742C true DE875742C (en) 1953-05-07

Family

ID=32509543

Family Applications (2)

Application Number Title Priority Date Filing Date
DEM5984D Expired DE853686C (en) 1944-01-07 1944-01-07 Pipe butt weld connection with pipe ends lugged on both sides and inserted nipple
DEM3911D Expired DE875742C (en) 1944-01-07 1944-07-09 Welded nipple connection

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEM5984D Expired DE853686C (en) 1944-01-07 1944-01-07 Pipe butt weld connection with pipe ends lugged on both sides and inserted nipple

Country Status (1)

Country Link
DE (2) DE853686C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059859B (en) * 1957-01-28 1959-06-25 Deilmann Bergbau G M B H C Process for the production of manhole linings and manhole linings produced therefrom

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2298256B (en) * 1995-02-23 1998-03-18 British Gas Plc Joining lined pipe items
GB2572554B (en) * 2018-03-29 2020-10-14 Maxtube Ltd Apparatus and method for lined pipe welding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1059859B (en) * 1957-01-28 1959-06-25 Deilmann Bergbau G M B H C Process for the production of manhole linings and manhole linings produced therefrom

Also Published As

Publication number Publication date
DE853686C (en) 1952-10-27

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