DE608184C - Laengsnahtloetschiene consisting of an electrical resistance material and directly heated by the heat of the current - Google Patents

Laengsnahtloetschiene consisting of an electrical resistance material and directly heated by the heat of the current

Info

Publication number
DE608184C
DE608184C DESCH101155D DESC101155D DE608184C DE 608184 C DE608184 C DE 608184C DE SCH101155 D DESCH101155 D DE SCH101155D DE SC101155 D DESC101155 D DE SC101155D DE 608184 C DE608184 C DE 608184C
Authority
DE
Germany
Prior art keywords
heat
resistance material
current
electrical resistance
directly heated
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
DESCH101155D
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.)
L Schuler GmbH
Original Assignee
L Schuler GmbH
Publication date
Priority to DESCH101155D priority Critical patent/DE608184C/en
Application granted granted Critical
Publication of DE608184C publication Critical patent/DE608184C/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
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/02Soldering irons; Bits
    • B23K3/025Bits or tips

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structures For Mounting Electric Components On Printed Circuit Boards (AREA)

Description

Es ist bereits bekannt, die Wärmeentwicklung in elektrisch beheizten Lötschienen statt durch. Verwendung von Widerstandsmaterial durch Querschmttsverminderung gegenüber den übrigen Teilen des Heizstromkreises hervorzurufen. It is already known the heat generation in electrically heated solder bars instead of through. Use of resistance material caused by a reduction in cross-section compared to the other parts of the heating circuit.

Die vorliegende Erfindung betrifft eine aus einem elektrischen Widerstandsmaterial bestehende, durch, die Stromwärme unmittelbar erhitzte Längsnahtlötschiene, welche neuheitsgemäß an den Stellen größerer Wärmeabfuhr durch. Querschnittsverminderung zu stärkerer Wärmeerzeugung angeregt wird. Hierdurch ist innerhalb der Zone erhöhten Widerstandes an den Stellen stärkerer Wärmeabfuhr, insbesondere an den Ecken, durch, nochmalige Anwendung der an sich, bekannten Regel dafür gesorgt, daß diese Stellen stärkerer Wärmeabfuhr ebenso heiß werden wie die übrigen Teile der Lötschiene.The present invention relates to a device consisting of an electrical resistance material, through, the current heat directly heated longitudinal seam soldering bar, which according to the novelty at the points of greater heat dissipation. Reduction in cross-section to greater Heat generation is stimulated. As a result, there is increased resistance within the zone at the points of stronger heat dissipation, especially at the corners, through, repeated Applying the rule, known per se, made these bodies stronger Heat dissipation become just as hot as the other parts of the soldering bar.

Der Vorteil der Erfindung besteht darin, daß nunmehr die Lötschiene bis an die Enden ausgenutzt werden kann, und hierdurch ergibt sich, in Anbetracht des verhältnismäßig hochwertigen Materials nicht nur eine bedeutende Ersparnis, sondern die Bedienung der Maschine wird durch den Fortfall der vorspringenden Ecken auch leichter und sicherer.The advantage of the invention is that now the soldering bar to the ends can be exploited, and this results, in view of the relatively high quality Materials not only a significant saving, but also the operation of the machine is also lighter and safer due to the omission of the protruding corners.

Zu diesem Zwecke wird beispielsweise an den Ecken der U-förmig gebogenen Schiene eine Aussparung o. dgl. vorgesehen. Häufig wird es" jedoch zweckmäßig erscheinen, um beispielsweise an den Ecken und bei Belastung des Bügels an diesen Stellen die statische Sicherheit nicht zu gefährden, die Aussparung neben dieser Stelle vorzusehen. Auch sind die Aussparungen so auszubilden, daß durch sie die Wärme ausstrahlende Fläche nicht vergrößert wird.For this purpose, for example, at the corners of the U-shaped curved rail a recess or the like. Provided. Often, however, it will "seem expedient to For example, at the corners and when the bracket is loaded at these points, the static Safety not to jeopardize the recess to be provided next to this point. The recesses are also to be designed so that through it does not increase the heat radiating surface.

Die Erfindung ist auf der Zeichnung in einem Ausführungsbeispiel schematisch dargestellt. The invention is shown schematically in the drawing in an exemplary embodiment.

Fig. ι zeigt die Lötschiene in Ansicht, Fig. 2 leinen Querschnitt. Die Lötschiene a, welche aus 'einem Wider- 4-5 standsmaterial besteht, ist an den Sekundärkrieis eines Transformators angeschlossen. Nach der bisher bekannten Bauart (gestrichelt eingezeichnet) mußte die zu lötende Zarge b 0. dgl. ein gewisses Stück von den Ecken der Schiene !entfernt angeordnet werden (gestrichelt dargestellt), um beim Niedergehen der .elektrisch erhitzten Lötschiene ß auf die Zarge & leine einwandfreie Lötnaht zu erhalten.Fig. Ι shows the soldering bar in view, Fig. 2 is a line cross-section. The soldering bar a, which consists of a resistance material, is connected to the secondary circuit of a transformer. According to the previously known design (shown in dashed lines) the frame to be soldered b 0 to get a perfect solder seam.

Erfindungsgemäß ist es nunmehr möglich, durch die beispielsweise an der oberen Seite der Lötschiene α an deren Ecken vorgesehenen Aussparungen c die Lötschiene α auf ihrer ganzen unteren Seite zur "Lotung zu verwenden, da durch die vorgesehenen Aussparungen die einer erhöhten Wärmeabfuhr unterliegenden Ecken zufolge erhöhten elektrischen Widerstandes stärker erhitzt werden. Selbstverständlich können die Aussparungen auf jede andere zweckmäßige Weise an den betreffenden Stellen oder neben diesen erhitzt werden. According to the invention it is now possible through the recesses c provided for example on the upper side of the soldering bar α at its corners to use the soldering bar α on its entire lower side for "soldering", since the corners that are subject to increased heat dissipation result in increased electrical through the recesses provided Of course, the recesses can be heated in any other expedient way at the relevant points or next to them.

Claims (1)

Patentanspruch :Claim: Aus einem elektrischen Widerstandsmaterial bestehende, durch die Stromwärme unmittelbar erhitzte Längsnahtlötschiene, dadurch gekennzeichnet, daß die Lötschiene (a) an den Stellen größerer Wärmeabfuhr durch Querschnitts verminderung zu stärkerer Wärmeerzeugung angeregt wird.Longitudinal seam soldering bar consisting of an electrical resistance material directly heated by the heat of the current, characterized in that the soldering bar (a) is stimulated to generate more heat at the points of greater heat dissipation by reducing the cross section. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DESCH101155D Laengsnahtloetschiene consisting of an electrical resistance material and directly heated by the heat of the current Expired DE608184C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH101155D DE608184C (en) Laengsnahtloetschiene consisting of an electrical resistance material and directly heated by the heat of the current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH101155D DE608184C (en) Laengsnahtloetschiene consisting of an electrical resistance material and directly heated by the heat of the current

Publications (1)

Publication Number Publication Date
DE608184C true DE608184C (en) 1935-01-17

Family

ID=7446962

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH101155D Expired DE608184C (en) Laengsnahtloetschiene consisting of an electrical resistance material and directly heated by the heat of the current

Country Status (1)

Country Link
DE (1) DE608184C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160961B (en) * 1954-12-01 1964-01-09 Gottlieb Wiedmann K G Welding stamp for producing long, continuous weld seams on bags or similar packaging materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1160961B (en) * 1954-12-01 1964-01-09 Gottlieb Wiedmann K G Welding stamp for producing long, continuous weld seams on bags or similar packaging materials

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