DE720238C - Flange attachment to pipe ends - Google Patents

Flange attachment to pipe ends

Info

Publication number
DE720238C
DE720238C DEM139974D DEM0139974D DE720238C DE 720238 C DE720238 C DE 720238C DE M139974 D DEM139974 D DE M139974D DE M0139974 D DEM0139974 D DE M0139974D DE 720238 C DE720238 C DE 720238C
Authority
DE
Germany
Prior art keywords
flange
pipe ends
welding
flange attachment
weld
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
DEM139974D
Other languages
German (de)
Inventor
Alfred Schmidt
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
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Priority to DEM139974D priority Critical patent/DE720238C/en
Application granted granted Critical
Publication of DE720238C publication Critical patent/DE720238C/en
Expired 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
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)

Description

Flanschenbefestigung an Rohrenden Die Erfindung betrifft eine Flanschenbefestigung an Rohrenden, bei der ein Bördel des Rohrendes mit dem Flansch durch :eine keilförmige, in der Stirnfläche des Flansches liegende Schweiße verbunden ist.Flange attachment to pipe ends The invention relates to a flange attachment at pipe ends, in which a flare of the pipe end with the flange through: a wedge-shaped, weld lying in the face of the flange is connected.

Bei den bekannten Ausführungen dieser Art besteht die Gefahr, daß im Grunde der Schweißrinne keine einwandfreie Schweißung, also keine innige Verbindung zwischen Schweiße und Grundmaterial erfolgt. Das hat zur Folge, daß einerseits nicht die volle Schweißkante des Bördels zum Tragen kommt, andererseits die Gefahr des Entstehens von Schweißrissen im besonders hohen Maße vorhanden ist.In the known designs of this type there is a risk that Basically, the welding channel does not have a perfect weld, i.e. no intimate connection occurs between weld and base material. As a result, on the one hand, not the full welding edge of the flange comes into play, on the other hand the risk of The occurrence of weld cracks is particularly high.

Beide Mängel beseitigt die Erfindung in einfachster Weise dadurch, daß die Schweißkerbe über die Dicke des mit schräger Schweißkante versehenen und gegebenenfalls angestauchten Bördels hinaus in den Flansch vertieft ist. Dadurch wird die Gefahrenzone im Grunde der Schweißrinne aus dem Bereich der Schweißkante des Bördels herausgebracht; diese trägt ;mithin voll ohne die Gefahr der Entstehung von Schweißrissen.The invention eliminates both deficiencies in the simplest way by that the welding notch over the thickness of the sloping welding edge and possibly upset flange is also deepened into the flange. Through this The danger zone is basically the welding channel from the area of the welding edge brought out the bead; this carries; therefore fully without the risk of emergence of weld cracks.

Auf der Zeichnung ist eine Ausführung gemäß der Erfindung im Schnitt dargestellt. Das Rohra, das auf seinem zylindrischen Teil in beliebiger Weise mit dem Flansch b verbunden sein kann, ist .an seinem Ende umgebördelt und weist eine schräg liegende Stirnfläche auf. Die Schweißrinne c geht tiefer in dein Flansch hinein, ,als es der Stärke des Bördels entspricht. Es entsteht also auch an der Unterlage des Bördels eine Kante d, die beim Beginn der Schweil3ung zusammen mit der inneren Kante des Bördel.s gut erwärmt und gut beobachtet «-erden kann, so daß mit Sicherheit an dieser Stelle eine porenfreie, dichte Verschweißung erfolgt.In the drawing, an embodiment according to the invention is in section shown. The Rohra, which on its cylindrical part with in any way the flange b can be connected, is .an flanged at its end and has a inclined face on. The welding channel c goes deeper into your flange in than it corresponds to the strength of the flange. So it is also created on the Underlay of the flange an edge d, which at the beginning of the welding together with the inner edge of the flange can be well warmed and observed, so that a pore-free, tight weld is certain to take place at this point.

Um zu verhindern, daß durch das Umbördeln die Wandstärke des Bördels geschwächt wird, kann der umgebördelte Teil, z. B. durch vorheriges Anstauchen nach außen oder innen, verdickt ausgebildet werden, und es kann gegebenenfalls :auch eine zu starke Verdickung nachträglich nach Fertigstellung der Schweiße in beliebiger Weise, z. B. durch Abdrehen, entfernt werden.To prevent the flanging from reducing the wall thickness of the flange is weakened, the beaded part, for. B. by prior upsetting outside or inside, thickened, and it can optionally: also too much thickening subsequently after completion of the weld in any Way, e.g. B. by turning, can be removed.

Claims (1)

PATENTANSPRUCH: Flanschenbefestigung .an Rohrenden, bei der der Bördel des Rohrendes mit dem Flansch durch eine keilförmige, in der Stirnfläche des Flansches liegende Sch-,v-cife verbunden ist, dadurch gekennzeichnet, daß die Schweißkerbe über die Dicke des reit schräger Schweißkante versehenen und gegebenenfalls angestauchten Bördels hinaus in den Flansch vertieft ist. PATENT CLAIM: Flange fastening .an pipe ends, in which the flange of the pipe end is connected to the flange by a wedge-shaped Sch-, v-cife lying in the end face of the flange, characterized in that the welding notch is provided over the thickness of the inclined welding edge and possibly upset flange is also deepened into the flange.
DEM139974D 1937-12-01 1937-12-01 Flange attachment to pipe ends Expired DE720238C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM139974D DE720238C (en) 1937-12-01 1937-12-01 Flange attachment to pipe ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM139974D DE720238C (en) 1937-12-01 1937-12-01 Flange attachment to pipe ends

Publications (1)

Publication Number Publication Date
DE720238C true DE720238C (en) 1942-04-29

Family

ID=7334455

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM139974D Expired DE720238C (en) 1937-12-01 1937-12-01 Flange attachment to pipe ends

Country Status (1)

Country Link
DE (1) DE720238C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1241208B (en) * 1960-08-18 1967-05-24 Sulzer Ag A tight connection between an austenitic tube and a ferritic vessel with an austenitic inner cladding
US3370868A (en) * 1966-01-13 1968-02-27 Pfaff & Kendall Combination base member and composite pole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1241208B (en) * 1960-08-18 1967-05-24 Sulzer Ag A tight connection between an austenitic tube and a ferritic vessel with an austenitic inner cladding
US3370868A (en) * 1966-01-13 1968-02-27 Pfaff & Kendall Combination base member and composite pole

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