DE960949C - Welding pad made of a ceramic material to cover the gap between two workpieces to be joined by fusion welding - Google Patents

Welding pad made of a ceramic material to cover the gap between two workpieces to be joined by fusion welding

Info

Publication number
DE960949C
DE960949C DEB34662A DEB0034662A DE960949C DE 960949 C DE960949 C DE 960949C DE B34662 A DEB34662 A DE B34662A DE B0034662 A DEB0034662 A DE B0034662A DE 960949 C DE960949 C DE 960949C
Authority
DE
Germany
Prior art keywords
welding
gap
workpieces
cover
joined
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
DEB34662A
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.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co 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 Gebrueder Boehler and Co AG filed Critical Gebrueder Boehler and Co AG
Application granted granted Critical
Publication of DE960949C publication Critical patent/DE960949C/en
Expired legal-status Critical Current

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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
    • B23K9/00Arc welding or cutting
    • B23K9/02Seam welding; Backing means; Inserts
    • B23K9/035Seam welding; Backing means; Inserts with backing means disposed under the seam

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Description

Aus einem keramischen Werkstoff bestehende Schweißunterlage zum Abdecken des Spaltes zwischen zwei durch Schmelzschweißen zu verbindende Werkstücke Die Verbindung von solchen Werkstücken durch Schweißen, die nur von einer Seite her vezschwoißt werden können oder deren beträchtlicher Abstand voneinander das Herausfließen des schmebzflüssigen Schwoißzusalzwerkstoffes erwarten läßt, erfordert ein Abdecken dies offenen Schweißspaltes auf einer Seite.A welding pad made of a ceramic material for covering the gap between two workpieces to be joined by fusion welding The joint of such workpieces by welding which only vezschweist from one side can be or their considerable distance from each other the outflow of the molten welding salt material can be expected, requires covering this open welding gap on one side.

Um nun solche Schweißurigen ausführen zu können, wurde bereits vorgeschlagen., Schienen oder Streifen aus Kupfer, Stahl oder anderen Metallen als Abdeokrnittel für dien Schweißspalt zu verwenden, wodurch ein Herauslaufen des flüssigen Werkstoffes verhindert wird. Durch diese Metallabdleckungen können, aber Spannungen als Folge der ,sich .ergebenden Abkühlwirkung auftreten, ferner kann es zu einem unerwünschten Auflogioren der Schweiße kommen, beispielsweise durch eine Metallabdeckung aus Kupfer.In order to be able to carry out such welding work, it has already been proposed., Rails or strips made of copper, steel or other metals as adhesive tape to be used for the welding gap, causing the liquid material to run out is prevented. This metal cover can, however, result in tension the. Resulting cooling effect occur, and it can also be an undesirable The welds can be exposed, for example through a metal cover made of copper.

Es sind daher bereits Verschläge bekanntgeworden, für die Abdeckung Streifen oder ß.löckchen zu verwenden, die aus keramischen oder anderen feuerfesten Materiaken bestehen.It is therefore already known crates for the cover Use strips or bells made of ceramic or other refractory materials Materials exist.

Ferner ist vorgeschlagen worden, körnige keramische Werkstoffe in gesinterter Form zur Abdeckung heranzuziehen. Auch gepu@-Iverte Metalle bzw. Metallegierungen, die durch Pressen und Sintern in Platten- oder Bandform gebracht wurden., sind :empfohlene worden.It has also been proposed to use granular ceramic materials in use sintered form to cover. Also gepu @ -Iverte metals respectively. Metal alloys that are formed into plate or strip form by pressing and sintering were., are: recommended.

Mit diesen bekannten Abdeckmitteln treten aber die größten Schwierigkeiten dann aurd, wenn Schweißspalte, die durch das Verbinden gekrümmter oder gebogener Teile entstehen, einwandfrei. und in wirtschaftlich tragbarer Weise verschweißt werden müssen. In solchen Fällen ist dfas erforderliche gute Anschmiegen des Abdeckm.ittelis sowie eine ausreichende Befestigung desselben mit den üblichen Metallschienen, gesinterten keramischen Platten u. dgl. mei(st in nur ungenügender Weise erreichbar.However, the greatest difficulties arise with these known covering means then aurd if welding gaps created by joining are curved or bent Parts are created, flawless. and welded in an economically viable manner Need to become. In such cases, it is necessary for the cover means to fit snugly as well as adequate fastening of the same with the usual metal rails, sintered ceramic plates and the like.

Wenn insbesondere bei der automatischen Schweißung -abwechselnd gerade und dann wieder gekrümmte Spalten abgedeckt werden müssen, sind die bisher hierfür bekannten Mittel und Abdeckverfahren völlig unzureichend.If, especially with automatic welding, alternately straight and then curved gaps have to be covered again, these are so far this known means and covering method completely inadequate.

Gegenstand der Errfindung ist nun eine aus einem keramischen Stoff bestehende Schweißunterlage zum Abdecken des Spaltes zwischen zwei durch Schmelizschweißung zu verbindende Werkstücke, die aus einzelnen untereinander durch eingelegte Drähte oder Bänder isich nahezu fugenlos aneinanderlegenden Teilstücken besteht.The subject of the invention is now one made of a ceramic material existing welding pad to cover the gap between two by fusion welding Workpieces to be connected, which are made up of individual parts by means of inserted wires or tapes is made up of almost seamlessly abutting parts.

Zweckmäßig werden diese Teilstücke aus sauren oder kalkbasischen Ummantelumgsmassen für Schweißelektroden aufgebaut.These sections are made from acidic or lime-base encapsulating masses built for welding electrodes.

Untereinander verbundene profilierte Teilstücke sind durch ihre Verwendung als- Umhüllungen für blanke Elektroden bei der automatischen L:ichtbogen;schwei;ßung an sich bekanntgeworden. Derartige umhüllte Elektroden haben unter der Bezeichnung Mantelkettenelektroden in die Technik Eingang gefunden..Interconnected profiled sections are due to their use as covers for bare electrodes in automatic arc welding became known per se. Such covered electrodes have the designation Sheathed chain electrodes found their way into technology.

Solche üblichen Mantelketten sind normalerweise für die Verwendung als Schweißunterlage zu schmal, jedoch können die profilierten Teilstücke der Mantelketten gegebenenfalls auch zum Aufbau der erfindungsgemäßen Schweißunterlagen benutzt werden.Such common sheath chains are usually for use Too narrow as a welding pad, but the profiled sections of the jacket chains may also be used to build up the welding pads according to the invention.

Schweißungen, die mit Hiil@fe dieser Schweißunterlagen durchgeführt wurden, zeigen eine völlig glatte und porenfreie Oberfläche an der abgedeckt gewesenen Unterseite der Schweißnaht. Dies wird vor allem dü@rch das einwandfreie Abdichten des angelegten Bandes, .das ein Auslaufen des flüssigen Werkstoffs verhindert, erzielt. Auf die Porenfreiheit der Oberfläche wirkt sich die Verwendung von Umm-anteliungsmaassen für Schweißelektroden zum Aufbau der Teilstücke vorteilhaft aus, weil hierdurch der Zutritt der Luft zum flüssigen Schweißgut weitgehend ausgeschaltet wird: Die einzelnen Formteile für die erfindungsgemäßen Schweißunterlagen können durch Pressen, Sintern oder Gießen hergestellt werden. Sie können je nach Anforderung verschieden profiliert sein und entsprechend, der zu verschweißenden Legierung in ihrem staffl)ichen Aufbau verändert werden.Welds carried out with Hiil @ fe of these welding pads show a completely smooth and pore-free surface on the one that has been covered Bottom of the weld. This is mainly due to the perfect sealing of the applied tape, which prevents the liquid material from leaking out. The use of encapsulating materials affects the pore-free surface for welding electrodes to build up the sections advantageous, because this the access of air to the liquid weld metal is largely eliminated: The individual molded parts for the welding pads according to the invention can be produced by pressing, Sintering or casting can be produced. They can be different depending on your requirements be profiled and according to the alloy to be welded in their stagger) Structure can be changed.

Claims (1)

PATENTANSPRÜCHE: r. Aus einem keramischen Werkstoff bestehende Schweißunterlage zum Abdecken des Spaltes zwischen zwei durch Schmelzschweißen zu verbindende Werkstücke, dadurch gekennzeichnet, daß sie aus einzelnen; untereinander durch eingelegte Drähte oder Bänder sich nahezu fugenlos aneinander_ legenden Teilstücken besteht. a. Schweißunterlage nach Anspruch z, dadurch gekennzeichnet, daß die Teilstücke aus sauren oder kalkbasischen Ummantelungsmassen für Schweißelektroden aufgebaut sind. In Betracht gezogene Druckschriften Deutsche Patentschrift Nr. 8o6 o8r. PATENT CLAIMS: r. A welding pad consisting of a ceramic material for covering the gap between two workpieces to be joined by fusion welding, characterized in that it consists of individual; with one another by inlaid wires or tapes that are almost seamlessly laid together sections. a. Welding pad according to claim z, characterized in that the sections are made up of acidic or lime-based coating compounds for welding electrodes. Considered publications German Patent No. 8o6 o8r.
DEB34662A 1954-03-06 1955-02-26 Welding pad made of a ceramic material to cover the gap between two workpieces to be joined by fusion welding Expired DE960949C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT960949X 1954-03-06

Publications (1)

Publication Number Publication Date
DE960949C true DE960949C (en) 1957-03-28

Family

ID=3683567

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB34662A Expired DE960949C (en) 1954-03-06 1955-02-26 Welding pad made of a ceramic material to cover the gap between two workpieces to be joined by fusion welding

Country Status (1)

Country Link
DE (1) DE960949C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078411B (en) * 1956-12-24 1960-03-24 Boehler & Co Ag Geb Welding pad for welding austenitic steels

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE806081C (en) * 1948-12-20 1951-06-11 Hubert Hauttmann Dr Ing Process for the production of fusion-welded V-seams without counter-welding at the root

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE806081C (en) * 1948-12-20 1951-06-11 Hubert Hauttmann Dr Ing Process for the production of fusion-welded V-seams without counter-welding at the root

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078411B (en) * 1956-12-24 1960-03-24 Boehler & Co Ag Geb Welding pad for welding austenitic steels

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