DE926926C - Process for spot welding metals - Google Patents

Process for spot welding metals

Info

Publication number
DE926926C
DE926926C DEC5036A DEC0005036A DE926926C DE 926926 C DE926926 C DE 926926C DE C5036 A DEC5036 A DE C5036A DE C0005036 A DEC0005036 A DE C0005036A DE 926926 C DE926926 C DE 926926C
Authority
DE
Germany
Prior art keywords
spot welding
paint
metals
aluminum powder
free
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
DEC5036A
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.)
CHEMISCHE LACK und FARBWERKE A
Original Assignee
CHEMISCHE LACK und FARBWERKE A
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 CHEMISCHE LACK und FARBWERKE A filed Critical CHEMISCHE LACK und FARBWERKE A
Priority to DEC5036A priority Critical patent/DE926926C/en
Application granted granted Critical
Publication of DE926926C publication Critical patent/DE926926C/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
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/226—Non-corrosive coatings; Primers applied before welding
    • 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
    • B23K11/10—Spot welding; Stitch welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)

Description

Verfahren zum Punktschweißen von Metallen Die elektrische Punktschweißung von. Metallen, insbesondere von. Stahlblechen aneinander, läßt sich, nach den bekannten: Verfahren nur durchführen, wenn die zu vereinigenden Stücke in blankem Zustand vorliegen, insbesondere keinen Anstrich aufweisen. Derartige Anstrichfilme wirken; mehr oder weniger als Isolierschichten, die den Stromdurchgang durch, die zu verbindenden Stücke in hohem Maße beeinträchtigt, so daß eine ausreichende Verheftung der Stücke nicht erreicht werden kann. Wenn, auch die Außenseiten. der in blankem Zustand ane@inand:ergeschweißten Stücke nachträglich noch mit einem. Anstrich, etwa einem Rostschutzanstrich, versehen werden 'können, so entfällt doch diese Möglichkeit an. den durch, die Punktschweißung miteinander verhefteten. Flächen, die somit leicht korrodieren., wodurch auch die einzelnen Schweißstellen angegriffen werden.. Die Erfindung betrifft ein neues Verfahren zum elektrischen Punktschweißen von Metallen, das die Möglichkeit gibt, auch mit einem Anstrich, insbesondere einem Rostschutzanstrich, versehene Metalle einwandfrei miteinander zu verbinden" so daß also, insbesondere eine Rolstbildung auf den nach dem Aufeinanderschweißen unzugänglichen Seiten der Teilstücke mit Sicherheit vermieden werden kann,.Process for spot welding metals. Electric spot welding from. Metals, especially of. Steel sheets together, can be, according to the well-known: Only carry out the process if the pieces to be combined are in a bare state, in particular have no paint. Such paint films work; more or less than insulating layers that allow current to pass through those to be connected Pieces impaired to a great extent, so that sufficient stapling of the pieces cannot be achieved. If so, also the outsides. the one in the bare condition ane @ inand: welded Pieces with a later. Paint, for example a rust protection paint can be ', this possibility does not apply. the through, the spot weld pinned together. Surfaces that are therefore easily corroded. As a result, the individual welds are attacked .. The invention relates to a new method for electrical spot welding of metals, which gives the option of using a coat of paint, in particular a rust protection coat, works perfectly to connect "so that so, in particular a Rolstbildung on the after the welding inaccessible sides of the sections avoided with security can be,.

Das neue Verfahren zum; elektrischen Punktschweißen vorn Metallen, insbesondere Stahlblechen, besteht darin, d-aß die zu vereinigenden. Stücke vor dem Verschweißen mit einem Metallpulver enthaltenden Überzug versehen werden. Der Überzug besteht aus einem styrolisierten Öllack, dem ein präpariertes Aluminiumpulver zugesetzt ist. Das Pulver wird vorteilhaft vor dem Vermischen mit dem Bindemittel in einem fettlösenden Lösungsmittel angeteigt und/oder erhitzt, um die dem Aluminiumpulver etwa anhaftenden Fettspuren, zu entfernen. Es wird hierdurr' !, gleich-zeitig erreicht, daß das. Luftpolster, welch --s bei üblichen Metallpulvern die einzelnen Tei',@hen gegeneinander isoliert, verschwindet.The new method for; electrical spot welding of metals, especially steel sheets, consists in d-aß the to be united. Pieces before be provided with a coating containing metal powder after welding. Of the The coating consists of a styrenated oil varnish to which a prepared aluminum powder is added. The powder is advantageous prior to mixing with the binder in a fat dissolving solvent dough and / or heated, to remove any traces of grease that may have stuck to the aluminum powder. It will be here !, at the same time achieved that the air cushion, which --s with common metal powders the individual parts, isolated from one another, disappear.

Claims (3)

P.,ATE"NTANSPRÜCHE: '.' @-'z@=-Z'e®rfahren zum elektrischen Punktschweißen vom, Metallen, dadurch gekennzeichnet, däß wenigstens die miteinarid.er zu verheftend-em, Seiten der beiden Metallteile vor dem Schweißvorgang mit eij,em Anstrich versehen werden, der durch Zusatz von Metallpulver elektrisch leitfähig gemacht ist. P., ATE "NT CLAIMS: '.' @ - 'z @ = - Z'e®running for electrical spot welding from, metals, characterized in that at least the miteinarid.er zu Paint the sides of the two metal parts before the welding process which is made electrically conductive by adding metal powder. 2. Verfahren.nach-Änspruch r, gekennzeichnet durch die Verwendung eines styrodisierten Öllacks mit einem Zusatz von Aluminiumpulver. 2. Procedure after claim r, characterized by the use of a styrodized oil varnish with an additive of aluminum powder. 3. Verfahren nach Anspruch z und 2, dadurch gekennzeichnet, daß das Aluminiumpulver vor .dem Einmischen, in das Anstrichmittel durch Anteigen und/oder Erhitzen in einem fettlösenden Lösungsmittel fettfrei und luftfrei gemacht wird.3. The method according to claim z and 2, characterized in that that the aluminum powder before .dem mixing, in the paint by pasting and / or heating in a fat-dissolving solvent rendered fat-free and air-free will.
DEC5036A 1951-11-30 1951-11-30 Process for spot welding metals Expired DE926926C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC5036A DE926926C (en) 1951-11-30 1951-11-30 Process for spot welding metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC5036A DE926926C (en) 1951-11-30 1951-11-30 Process for spot welding metals

Publications (1)

Publication Number Publication Date
DE926926C true DE926926C (en) 1956-04-19

Family

ID=7013564

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC5036A Expired DE926926C (en) 1951-11-30 1951-11-30 Process for spot welding metals

Country Status (1)

Country Link
DE (1) DE926926C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549407A1 (en) * 1983-07-18 1985-01-25 Grace W R Ltd WELDING SEALING AGENTS FOR METALS AND METHOD OF USE
EP0688628A1 (en) * 1994-06-23 1995-12-27 Honda Giken Kogyo Kabushiki Kaisha Powder materials for use in resistance welding aluminum articles and method of resistance welding aluminum articles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549407A1 (en) * 1983-07-18 1985-01-25 Grace W R Ltd WELDING SEALING AGENTS FOR METALS AND METHOD OF USE
EP0688628A1 (en) * 1994-06-23 1995-12-27 Honda Giken Kogyo Kabushiki Kaisha Powder materials for use in resistance welding aluminum articles and method of resistance welding aluminum articles
US5753885A (en) * 1994-06-23 1998-05-19 Honda Giken Kogyo Kabushiki Kaisha Powder materials for use in resistance welding aluminum articles and method of resistance welding aluminum articles

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