DE366979C - Process for the electrical welding of longitudinal seams with the help of the roller step process for tinplate - Google Patents

Process for the electrical welding of longitudinal seams with the help of the roller step process for tinplate

Info

Publication number
DE366979C
DE366979C DESCH53280D DESC053280D DE366979C DE 366979 C DE366979 C DE 366979C DE SCH53280 D DESCH53280 D DE SCH53280D DE SC053280 D DESC053280 D DE SC053280D DE 366979 C DE366979 C DE 366979C
Authority
DE
Germany
Prior art keywords
tinplate
help
longitudinal seams
electrical welding
roller step
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
DESCH53280D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DESCH53280D priority Critical patent/DE366979C/en
Priority to DESCH56866D priority patent/DE388136C/en
Application granted granted Critical
Publication of DE366979C publication Critical patent/DE366979C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/14Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams
    • B23K1/18Soldering, e.g. brazing, or unsoldering specially adapted for soldering seams circumferential seams, e.g. of shells
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00Resistance welding; Severing by resistance heating
    • B23K11/10Spot welding; Stitch welding
    • B23K11/105Stitch welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Coating With Molten Metal (AREA)
  • Resistance Welding (AREA)

Description

Die Erfindung bezieht sich auf glas elektrische Schweißen von Längsnähten mit Hilfe des z. B. durch die Patente 339573, 337245, 325500, 325501 geschützten Rollenschrittver-S fahrens bei mit Überzügen versehenen Blechen, insbesondere Weißblech.The invention relates to glass electrical welding of longitudinal seams with the aid of z. Roll stepper-S protected by patents 339573, 337245, 325500, 325501 driving with sheets provided with coatings, especially tinplate.

Das Wesen der Erfindung besteht darin, daß unter Anwendung der erwähnten Rollenschrittschweißung die Ruhephase des Schrittes so lang bemessen wird, daß die Temperatur der Schweißstelle unter dem den Luftabschluß bewirkenden Elektrodendruck bis zu einem Grad gesunken ist, bei welchem die Oxydation der Schweißstelle nach Freigabe,The essence of the invention is that using the aforementioned roller step welding the rest phase of the step is dimensioned so long that the temperature of the weld is below the exclusion of air causing electrode pressure has fallen to a degree at which the oxidation of the welding point after release,

also bei Einleiten der neuen Bewegungsphase nicht mehr erfolgen-kann.that can no longer take place when the new movement phase is initiated.

Versuche haben ergeben, daß bei dieser Arbeitsweise wohl eine Verflüssigung des Überzugsmaterials, aber keine VerbrennungExperiments have shown that in this mode of operation, a liquefaction of the Coating material, but no incineration

stattfindet. Zwar wird hierbei ein kleiner Teil des Materials zwischen den Elektroden herausgepreßt, jedoch bleibt der seitlich größte Teil schon deshalb an der Schweißstelle sitzen, weil von den ersten Schweißungen her sich die Elektroden mit einer Zinnschicht bedecken, welche von etwas rauher Oberfläche, ein restloses Herausfließen des unter den Elektroden flüssig gewordenen Materials verhindert. Der Erfolg ist dann, daß die Hauptmenge des ver-takes place. It is true that a small part of the material is between the electrodes pressed out, but the largest part of the side remains sitting at the welding point, because from the first welds the electrodes are covered with a layer of tin, which have a somewhat rough surface, a complete flow of the under the electrodes material that has become liquid is prevented. The success is then that the majority of the

flüssigten Überzuges unter den Elektroden bleibt. Eine Verdampfung des Überzuges findet jedenfalls bei Zinn und Blei nicht statt, weil durch die Elektrodenkühlung die Wärmeableitung so groß ist, daß die Verdampfungstemperatur an der Berührungsstelle der Elek- troden nicht erreicht werden kann. Unmittelbar nach erfolgter Schweißung erfolgt nun die Ausschaltung durch den mit der schrittweisen Bewegung zwangläufig gekuppelten Schalter, während die Elektroden noch auf der Schweißstelle ruhend verbleiben. Es erfolgt durch die Wärmeableitung des umgebenden Materials und durch die Elektroden dann eine schnelle Abkühlung und sobald die Oberfläche der Schweißstelle in der Temperatur so weit gesunken ist, daß eine Oxydation nicht mehr eintreten kann, erfolgt ein neuer Schritt. -liquid coating remains under the electrodes. Evaporation of the coating does not take place in any case with tin and lead, because the cooling of the electrodes allows the heat to be dissipated is so high that the evaporation temperature at the point of contact of the elec- troden cannot be achieved. Immediately after the welding has taken place the disconnection by the inevitably coupled with the step-by-step movement Switch while the electrodes still rest on the welding point. It takes place through the heat dissipation of the surrounding material and then through the electrodes rapid cooling and once the surface of the weld in the temperature has sunk so far that one oxidation can no longer occur, a new one follows Step. -

Die nach der Erfindung erzielte Schweißnaht ist wohl matt, da natürlich das unter der Elektrode jeweilig verflüssigte Zink nahezu erstarrend, matt bleiben muß, jedoch bleibt die Zinnschicht auf der Naht erhalten.The weld seam achieved according to the invention is probably matt, since of course that under the Electrode liquefied zinc almost solidifies, must remain matt, but remains keep the tin layer on the seam.

Es wird hiermit also erstmalig ermöglicht, mit Überzug versehenes Blech, besonders Weißblech, zu schweißen, ohne den Überzug zu verbrennen.It is hereby made possible for the first time, especially coated sheet metal Tinplate, to be welded without burning the coating.

Wenn Wert darauf gelegt wird, daß auch die Schweißnaht wieder ein blankes Aussehen annimmt, so kann dies dadurch erreicht werden, daß die Schrittbewegung der Elektrode nach der Schweißung so früh einsetzt, daß sie das Überzugsmaterial an der Schweißstelle noch flüssig verläßt und daß dieses Material durch eine Wischvorrichtung hinter den Elektroden verwiscjht wird.If value is placed on the weld seam also having a shiny appearance again assumes this can be achieved by stepping the electrode starts so early after welding that it removes the coating material at the welding point still liquid and that this material leaves through a wiping device behind the electrodes is blurred.

Die Umfangsform der Elektrode wird zweckmäßig so gewählt, daß der während derThe circumferential shape of the electrode is expediently chosen so that the during the

Schweißung nötige Abschluß der Schweißstelle von der Luft möglichst vollkommen erreicht wird, d. h. es wird zweckmäßig mit großem Rollendurchmesser gearbeitet.Welding necessary completion of the welding point from the air as completely as possible will, d. H. it is expedient to work with a large roll diameter.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zum elektrischen Schweißen von Längsnähten mit Hilfe des RollenSchrittverfahrens bei Weißblech, dadurch gekennzeichnet, daß die Ruhephase des Schrittes so lang bemessen wird, daß die Temperatur der Schweißstelle unter dem den Luftabschluß bewirkenden Elektrodendruck bis zu einem Grade gesunken ist, bei welchem eine Oxydation nach Freigabe der Stelle bei Einleiten der neuen Bewegungsphase nicht mehr erfolgen kann.Process for the electrical welding of longitudinal seams with the help of the roller step process in tinplate, characterized in that the rest phase of the step is so long that the Temperature of the weld under the electrode pressure causing the air exclusion has sunk to a degree at which oxidation occurs after the site is released when the new one is introduced Movement phase can no longer take place.
DESCH53280D 1918-06-16 1918-06-16 Process for the electrical welding of longitudinal seams with the help of the roller step process for tinplate Expired DE366979C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DESCH53280D DE366979C (en) 1918-06-16 1918-06-16 Process for the electrical welding of longitudinal seams with the help of the roller step process for tinplate
DESCH56866D DE388136C (en) 1918-06-16 1919-11-30 Method for sealing tinplate cans and. like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DESCH53280D DE366979C (en) 1918-06-16 1918-06-16 Process for the electrical welding of longitudinal seams with the help of the roller step process for tinplate
DESCH56866D DE388136C (en) 1918-06-16 1919-11-30 Method for sealing tinplate cans and. like

Publications (1)

Publication Number Publication Date
DE366979C true DE366979C (en) 1923-01-15

Family

ID=32509591

Family Applications (2)

Application Number Title Priority Date Filing Date
DESCH53280D Expired DE366979C (en) 1918-06-16 1918-06-16 Process for the electrical welding of longitudinal seams with the help of the roller step process for tinplate
DESCH56866D Expired DE388136C (en) 1918-06-16 1919-11-30 Method for sealing tinplate cans and. like

Family Applications After (1)

Application Number Title Priority Date Filing Date
DESCH56866D Expired DE388136C (en) 1918-06-16 1919-11-30 Method for sealing tinplate cans and. like

Country Status (1)

Country Link
DE (2) DE366979C (en)

Also Published As

Publication number Publication date
DE388136C (en) 1924-01-18

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