FR2422474A1 - METHOD AND DEVICE FOR ADJUSTING THE DISCHARGE PRESSURE WHEN WELDING ROLL TUBES - Google Patents

METHOD AND DEVICE FOR ADJUSTING THE DISCHARGE PRESSURE WHEN WELDING ROLL TUBES

Info

Publication number
FR2422474A1
FR2422474A1 FR7908702A FR7908702A FR2422474A1 FR 2422474 A1 FR2422474 A1 FR 2422474A1 FR 7908702 A FR7908702 A FR 7908702A FR 7908702 A FR7908702 A FR 7908702A FR 2422474 A1 FR2422474 A1 FR 2422474A1
Authority
FR
France
Prior art keywords
adjusting
discharge pressure
tubes
welding roll
lips
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.)
Withdrawn
Application number
FR7908702A
Other languages
French (fr)
Inventor
Erhard Hentzschel
Erhard Jaspert
Kurt Niederhoff
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
Publication of FR2422474A1 publication Critical patent/FR2422474A1/en
Withdrawn legal-status Critical Current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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/083—Devices involving movement of the workpiece in at least one axial direction
    • B23K26/0838—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt
    • B23K26/0846—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt for moving elongated workpieces longitudinally, e.g. wire or strip material
    • 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
    • B23K11/08—Seam welding not restricted to one of the preceding subgroups
    • B23K11/087—Seam welding not restricted to one of the preceding subgroups for rectilinear seams
    • B23K11/0873—Seam welding not restricted to one of the preceding subgroups for rectilinear seams of the longitudinal seam of tubes
    • 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
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices
    • B23K11/252—Monitoring devices using digital means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B7/00—Machines, apparatus or hand tools for branding, e.g. using radiant energy such as laser beams
    • 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
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/007—Marks, e.g. trade marks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Laser Beam Processing (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

Fabrication de tubes en continu par repliage d'un ruban et soudure électrique à résistance des lèvres de la fente. Dans un plan 1 situé en amont du point de soudure Sp l'on applique sur le tube, par exemple au laser, des marques situées à un certain écartement l'une de l'autre de part et d autre de la fente Puis dans un plan 2 situé en aval de Sp l'on mesure l'écartement des marques. On en déduit l'amplitude de la composante tangentielle du refoulement du métal à la soudure. On règle la pression de serrage des lèvres au point Sp en fonction de ce paramètre. Fabrication des tubes dits à lèvres soudées.Manufacture of tubes continuously by folding a tape and electrical resistance welding of the lips of the slot. In a plane 1 located upstream of the weld point Sp is applied to the tube, for example by laser, marks located at a certain distance from each other on either side of the slot Then in a plane 2 located downstream of Sp, the spacing of the marks is measured. We deduce from this the amplitude of the tangential component of the discharge of the metal at the weld. The clamping pressure of the lips at point Sp is adjusted as a function of this parameter. Manufacture of so-called welded-lip tubes.

FR7908702A 1978-04-14 1979-04-02 METHOD AND DEVICE FOR ADJUSTING THE DISCHARGE PRESSURE WHEN WELDING ROLL TUBES Withdrawn FR2422474A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2816896A DE2816896C3 (en) 1978-04-14 1978-04-14 Method for electrical resistance welding of a pipe

Publications (1)

Publication Number Publication Date
FR2422474A1 true FR2422474A1 (en) 1979-11-09

Family

ID=6037346

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908702A Withdrawn FR2422474A1 (en) 1978-04-14 1979-04-02 METHOD AND DEVICE FOR ADJUSTING THE DISCHARGE PRESSURE WHEN WELDING ROLL TUBES

Country Status (6)

Country Link
JP (1) JPS54138839A (en)
DE (1) DE2816896C3 (en)
FR (1) FR2422474A1 (en)
GB (1) GB2022484B (en)
IT (1) IT7921572A0 (en)
NL (1) NL7901586A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460745A1 (en) * 1979-07-06 1981-01-30 Egimot Forging machine for mfg. tube with longitudinal seam weld - where forging rolls exert uniform pressure when squeezing the tube to make the weld
EP0052688A1 (en) * 1980-11-25 1982-06-02 ETUDES GENERALES D'INGENIERIE MECANIQUE ET OUTILLAGES (EGIMOT) Société dite Forging block for manufacturing metal tubes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573416A (en) * 1968-09-28 1971-04-06 Dalmine Spa Method and device for self-regulated welding in the manufacture of longitudinally welded metal tubes
DE1752951A1 (en) * 1968-08-12 1971-07-01 Guido Drechsler Procedure to avoid incorrect welds in high-frequency welded pipes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1752951A1 (en) * 1968-08-12 1971-07-01 Guido Drechsler Procedure to avoid incorrect welds in high-frequency welded pipes
US3573416A (en) * 1968-09-28 1971-04-06 Dalmine Spa Method and device for self-regulated welding in the manufacture of longitudinally welded metal tubes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460745A1 (en) * 1979-07-06 1981-01-30 Egimot Forging machine for mfg. tube with longitudinal seam weld - where forging rolls exert uniform pressure when squeezing the tube to make the weld
EP0052688A1 (en) * 1980-11-25 1982-06-02 ETUDES GENERALES D'INGENIERIE MECANIQUE ET OUTILLAGES (EGIMOT) Société dite Forging block for manufacturing metal tubes

Also Published As

Publication number Publication date
JPS5650676B2 (en) 1981-11-30
NL7901586A (en) 1979-10-16
JPS54138839A (en) 1979-10-27
GB2022484A (en) 1979-12-19
IT7921572A0 (en) 1979-04-04
DE2816896A1 (en) 1979-10-18
GB2022484B (en) 1982-06-23
DE2816896B2 (en) 1980-10-16
DE2816896C3 (en) 1981-07-16

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Legal Events

Date Code Title Description
ST Notification of lapse