DE663868C - Process for the production of welding electrodes provided with a core from a sheet metal bent like a tube - Google Patents

Process for the production of welding electrodes provided with a core from a sheet metal bent like a tube

Info

Publication number
DE663868C
DE663868C DEV31012D DEV0031012D DE663868C DE 663868 C DE663868 C DE 663868C DE V31012 D DEV31012 D DE V31012D DE V0031012 D DEV0031012 D DE V0031012D DE 663868 C DE663868 C DE 663868C
Authority
DE
Germany
Prior art keywords
sheet metal
tube
core
production
welding electrodes
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
DEV31012D
Other languages
German (de)
Inventor
Dr-Ing Wilhelm Puengel
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.)
Kohle und Eisenforschung GmbH
Original Assignee
Kohle und Eisenforschung GmbH
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 Kohle und Eisenforschung GmbH filed Critical Kohle und Eisenforschung GmbH
Priority to DEV31012D priority Critical patent/DE663868C/en
Application granted granted Critical
Publication of DE663868C publication Critical patent/DE663868C/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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding
    • B23K35/406—Filled tubular wire or rods
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40—Making wire or rods for soldering or welding
    • B23K35/406—Filled tubular wire or rods
    • B23K2035/408—Filled tubular wire or rods with welded longitudinal seam

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von mit einer Seele versehenen Schweißelektroden aus einem rohrartig gebogenen Blech, dessen Längskanten miteinander verschweißt sind.The invention relates to a method for the production of those provided with a core Welding electrodes made from a tube-like bent sheet metal, the longitudinal edges of which are connected to one another are welded.

Die Herstellung von Schweißelektroden mit einer Seele, bei welcher der die Seele umgebende Blechmantel aus einem rohrartig gebogenen Blech gebildet ist, stieß auf Schwierigkeiten dadurch, daß-beim Ziehen des Mantels die im Mantel vorhandene Längsnaht selbst durch festes Anpressen der Ränder gegeneinander nicht genügend dicht gemacht werden konnte, so daß die in den meisten Fällen pulverförmigen Bestandteile der Seele mit der Zeit aus dem Blechinantel heralusrieselten; insbesondere tritt dies ein, wenn der Schweißstab gebogen wird. Mat hat bereits diese Schwierigkeiten behoben, indem man nach Fertigstellung des Schweißdrahtes die Längsnaht des Blechmantels zuschweißte. Da aber auch beim Ziehen des Drahtes, insbesondere bei den letzten Zügen, die pulverförmigen Teilchen der Seele durch die Naht herausrieseln, schlägt die Erfindung zur Behebung dieser Schwierigkeit vor, das Verschweißen der Längskanten des die Seele umgebenden Blechrohres entweder in einem Arbeitsgang mit dem letzten Zuge beim Formen des Blechmantels oder bereits vor dem Fertigziehen, z. B. nach dem Vorbiegen des Blechbandes zum Rohr, vorzunehmen.The manufacture of welding electrodes with a core, in which the one surrounding the core Sheet metal jacket is formed from a tube-like bent sheet metal, encountered difficulties in that-when pulling the jacket, the longitudinal seam present in the jacket not made sufficiently tight even by firmly pressing the edges against each other could be, so that in most cases the powdery constituents of the soul over time trickled out of the sheet metal jacket; in particular, this occurs when the welding rod is bent. Mat has already resolved these difficulties by after completion of the welding wire, the longitudinal seam of the sheet metal jacket was welded shut. But also when pulling the wire, especially on the last pulls, the powdery ones Particles of the soul trickle out through the seam, the invention proposes to remedy this this difficulty, the welding of the longitudinal edges of the sheet metal tube surrounding the soul either in one Work step with the last train when forming the sheet metal jacket or even before the Finish drawing, e.g. B. after the pre-bending of the sheet metal strip to the pipe.

Claims (1)

Patentanspruch:Claim: Verfahren zur Herstellung von mit einer Seele versehenen Schweißelektroden aus einem rohrartig gebogenen Blech, dessen aneinanderstoßende Längskanten miteinander verschweißt sind, dadurch gekennzeichnet, daß das Verschweißen der Längskanten des die Seele umgebenden Blechrohres entweder in einem Arbeitsgang mit dem letzten Zuge beim Formen des Blechmantels oder bereits vor dem Fertigziehen, z. B. nach dem Vorbiegen des Blechbandes zum Rohr, erfolgt.Process for the production of welding electrodes provided with a core a tube-like bent sheet, the abutting longitudinal edges with each other are welded, characterized in that the welding of the longitudinal edges of the sheet metal tube surrounding the soul either in one operation the last pull when forming the sheet metal jacket or before the final drawing, z. B. after the pre-bending of the sheet metal strip to the pipe, takes place. *) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor: Dr.-Ing. Wilhelm Püngel in Dortmund.Dr.-Ing. Wilhelm Püngel in Dortmund.
DEV31012D 1934-08-08 1934-08-08 Process for the production of welding electrodes provided with a core from a sheet metal bent like a tube Expired DE663868C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV31012D DE663868C (en) 1934-08-08 1934-08-08 Process for the production of welding electrodes provided with a core from a sheet metal bent like a tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV31012D DE663868C (en) 1934-08-08 1934-08-08 Process for the production of welding electrodes provided with a core from a sheet metal bent like a tube

Publications (1)

Publication Number Publication Date
DE663868C true DE663868C (en) 1938-08-15

Family

ID=7586095

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV31012D Expired DE663868C (en) 1934-08-08 1934-08-08 Process for the production of welding electrodes provided with a core from a sheet metal bent like a tube

Country Status (1)

Country Link
DE (1) DE663868C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093928B (en) * 1954-02-12 1960-12-01 Compania Nac De Productos Process, device and melting metal electrode provided with a flux with a bare surface for arc welding
DE1245513B (en) * 1962-10-12 1967-07-27 Harnischfeger Corp Method and device for producing a fusible tubular electrode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1093928B (en) * 1954-02-12 1960-12-01 Compania Nac De Productos Process, device and melting metal electrode provided with a flux with a bare surface for arc welding
DE1245513B (en) * 1962-10-12 1967-07-27 Harnischfeger Corp Method and device for producing a fusible tubular electrode

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