DE595803C - Process for the hardening of pipe weld seams - Google Patents

Process for the hardening of pipe weld seams

Info

Publication number
DE595803C
DE595803C DEV28553D DEV0028553D DE595803C DE 595803 C DE595803 C DE 595803C DE V28553 D DEV28553 D DE V28553D DE V0028553 D DEV0028553 D DE V0028553D DE 595803 C DE595803 C DE 595803C
Authority
DE
Germany
Prior art keywords
hardening
weld seams
pipe weld
weld seam
pipe
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
DEV28553D
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.)
Vereinigte Stahlwerke AG
Original Assignee
Vereinigte Stahlwerke AG
Publication date
Priority to DEV28553D priority Critical patent/DE595803C/en
Application granted granted Critical
Publication of DE595803C publication Critical patent/DE595803C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Description

Verfahren zum Vergüten von Rohrrundschweißnähten Gemäß dem Verfahren des Hauptpatents 581 21¢ wird bei Rohren, die aus gebogenen Blechen durch Verschweißen der Längskanten hergestellt sind, eine Vergütung der Schweißnaht dadurch erzielt, daß die Rohrmach dem Glühen längs der Schweißnaht von innen oder (und) ' außen derart örtlich abgeschreckt werden, z. B. durch Abspritzen mit Wasser oder Luft, daß nur die Schweißnaht und deren nähere Umgebung auf etwa Raumtemperatur gelangt, wodurch die Schweißnaht durch Temperaturausgleich zwischen dem abgeschreckten und dem nichtabgeschreckten Rohrteil angelassen wird.Process for tempering circumferential pipe welds According to the process of the main patent 581 21 ¢ is for pipes made of bent sheet metal by welding the longitudinal edges are made, a compensation of the weld is achieved by that the Rohrmach the annealing along the weld seam from the inside or (and) 'outside in such a way locally deterred, e.g. B. by hosing down with water or air that only the weld seam and its immediate surroundings come to about room temperature, whereby the weld seam by temperature equalization between the quenched and the non-quenched Pipe part is tempered.

Gegenstand der vorliegenden Erfindung ist die Anwendung des durch das Patent 58121¢ für die Vergütung von Rohrlängsschweißnähten geschützten Verfahrens auf die Vergütung von Rohrrundschweißnähten, für die es in gleich vorteilhafter Weise angewandt werden kann, indem in diesem Falle an Stelle der Längsspritzvorrichtung eine Spritzvorrichtung, aus Querdüsen bestehend, vorgesehen wird, die die Rundschweißnaht abschreckt, wobei das Rohr während des Abschreckens gedreht werden muß.The present invention is the application of by the patent 58121 ¢ for the remuneration of pipe longitudinal weld seams protected process on the remuneration of circular pipe welds, for which it is equally advantageous Way can be applied by in this case instead of the longitudinal injection device a spray device, consisting of transverse nozzles, is provided, which welds the circular seam quenching, whereby the pipe must be rotated during quenching.

In der beiliegenden Zeichnung ist eine zur Durchführung des beschriebenen Verfahrens, insbesondere bei Rohren größeren Durchmessers, geeignete Einrichtung, die in die Herstellung serienmäßig hergestellter Rohre ohne nennenswerte Verteuerung eingeschaltet werden kann, in einem Ausführungsbeispiel dargestellt, und zwar in Abb. i in Seitenansicht und in Abb. 2 in Stirnansicht.In the accompanying drawing is one for performing the described Procedure, especially in the case of pipes with larger diameters, suitable equipment, the pipes produced in series without any appreciable increase in price can be switched on, shown in one embodiment, namely in Fig. I in side view and in Fig. 2 in front view.

Die Abschreckvorrichtung besteht aus den Querdüsen i, durch welche die Schweißnaht unter Drehung des Rohres 2 abgespritzt wird, und zwar derart, daß nur die Schweißnaht und deren nähere Umgebung auf etwa Raumtemperatur gelangt.The quenching device consists of the cross nozzles i through which the weld seam is sprayed with rotation of the tube 2, in such a way that only the weld seam and its immediate surroundings come to around room temperature.

Das Vergüten der Schweißnaht geschieht zweckmäßig während des Nachrundens der Rohre und Glättens der Schweißnaht in der Walzeneinrichtung 3, ¢, wobei die Abschneckvorrichtung zweckmäßig zwischen den Walzen ¢ angebracht ist. Letztere können gleichzeitig als Drehvorrichtung für das Rohr 2 ausgebildet sein.The heat treatment of the weld seam is expediently done during the rounding off of the tubes and smoothing the weld seam in the roller device 3, ¢, wherein the The snailing device is expediently attached between the rollers ¢. The latter can be designed as a rotating device for the tube 2 at the same time.

Das Verfahren bzw. die Einrichtung ist natürlich nicht auf- das Vergüten von Rundnähten bei Rohren beschränkt, vielmehr können in der angegebenen Weise z. B. auch solche von Kesseltrommeln o. dgl. vergütet werden.The process or the facility is of course not based on remuneration limited by round seams in pipes, rather can in the specified manner z. B. also those of boiler drums o. The like. Be remunerated.

Claims (1)

PA@TENTANSPRU'C11: Die Anwendung des Verfahrens zum Vergüten von Rohrlängsschweißnähten nach Patent 58121q. auf Rohrrundschweißnähte.PA @ TENTANSPRU'C11: The application of the process for tempering longitudinal pipe welds according to patent 58121q. on round pipe welds.
DEV28553D Process for the hardening of pipe weld seams Expired DE595803C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV28553D DE595803C (en) Process for the hardening of pipe weld seams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV28553D DE595803C (en) Process for the hardening of pipe weld seams

Publications (1)

Publication Number Publication Date
DE595803C true DE595803C (en) 1934-04-19

Family

ID=7584225

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV28553D Expired DE595803C (en) Process for the hardening of pipe weld seams

Country Status (1)

Country Link
DE (1) DE595803C (en)

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