DE617273C - Process for continuous electrical resistance welding of longitudinal seams, especially pipe longitudinal seams, by means of three-phase current - Google Patents

Process for continuous electrical resistance welding of longitudinal seams, especially pipe longitudinal seams, by means of three-phase current

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Publication number
DE617273C
DE617273C DEST51401D DEST051401D DE617273C DE 617273 C DE617273 C DE 617273C DE ST51401 D DEST51401 D DE ST51401D DE ST051401 D DEST051401 D DE ST051401D DE 617273 C DE617273 C DE 617273C
Authority
DE
Germany
Prior art keywords
longitudinal seams
electrical resistance
resistance welding
continuous electrical
seam
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
DEST51401D
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.)
FRITZ STIEHL DIPL ING
Original Assignee
FRITZ STIEHL DIPL ING
Publication date
Priority to DEST51401D priority Critical patent/DE617273C/en
Application granted granted Critical
Publication of DE617273C publication Critical patent/DE617273C/en
Expired legal-status Critical Current

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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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
    • B23K11/061—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams
    • B23K11/062—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams for welding longitudinal seams of tubes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Resistance Welding (AREA)

Description

feERLIH CEDRUCKT (N DERfeERLIH CEDRUCKT (N THE

Claims (2)

Patentansprüche:Patent claims: i. Verfahren zum fortlaufenden elektrischen Widerstandsschweißen' von Längsnähten, insbesondere von Rohrlängsnähten, mittels DrehstromeSj bei welchem vor den beiderseits der Naht angeordneten mit je einer Stromphase verbundenen Schweißelektroden zwei ■ebenfalls: beiderseits der Naht angeordnete Teile einer mit der dritten Stromphase verbundenen Vorwärmeelektrode angeordnet sind, dadurch gekennzeichnet, daß auf der Vorwärmestrecke in die Naht eine isolierende Trennschicht eingreift, welche die vNaht auf diesem Wege offen hält.i. A method for continuous electrical resistance welding of longitudinal seams, in particular of longitudinal pipe seams, by means of three-phase currents, in which two parts of a preheating electrode connected to the third current phase are arranged in front of the welding electrodes arranged on both sides of the seam, each connected to a current phase that on the preheating section in the seam engages an insulating separating layer, which keeps the v seam open in this way. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Naht durch eine zwischen den Teilen der Vorwärmeelektrode liegende, über deren Umfang hinausragende Scheibe (8) offen gehalten wird.2. The method according to claim 1, characterized in that the seam by a lying between the parts of the preheating electrode, protruding beyond its circumference Disc (8) is kept open. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEST51401D Process for continuous electrical resistance welding of longitudinal seams, especially pipe longitudinal seams, by means of three-phase current Expired DE617273C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEST51401D DE617273C (en) Process for continuous electrical resistance welding of longitudinal seams, especially pipe longitudinal seams, by means of three-phase current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST51401D DE617273C (en) Process for continuous electrical resistance welding of longitudinal seams, especially pipe longitudinal seams, by means of three-phase current

Publications (1)

Publication Number Publication Date
DE617273C true DE617273C (en) 1935-08-15

Family

ID=7466270

Family Applications (1)

Application Number Title Priority Date Filing Date
DEST51401D Expired DE617273C (en) Process for continuous electrical resistance welding of longitudinal seams, especially pipe longitudinal seams, by means of three-phase current

Country Status (1)

Country Link
DE (1) DE617273C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088167B (en) * 1959-05-14 1960-09-01 Peco Elek Sche Schweissmaschin Process for electrical resistance welding in butt or overlapping seams of workpieces, in particular of a tube continuously formed from a strip, as well as electrical resistance welding system for carrying out this process
DE1173600B (en) * 1957-02-06 1964-07-09 American Mach & Foundry Method and device for electrical welding together of two elongated metal pieces, in particular for longitudinal welding of pipes or the like.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173600B (en) * 1957-02-06 1964-07-09 American Mach & Foundry Method and device for electrical welding together of two elongated metal pieces, in particular for longitudinal welding of pipes or the like.
DE1088167B (en) * 1959-05-14 1960-09-01 Peco Elek Sche Schweissmaschin Process for electrical resistance welding in butt or overlapping seams of workpieces, in particular of a tube continuously formed from a strip, as well as electrical resistance welding system for carrying out this process

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