DE561364C - Crucible for performing aluminothermic reactions, especially for welding purposes - Google Patents

Crucible for performing aluminothermic reactions, especially for welding purposes

Info

Publication number
DE561364C
DE561364C DEA60860D DEA0060860D DE561364C DE 561364 C DE561364 C DE 561364C DE A60860 D DEA60860 D DE A60860D DE A0060860 D DEA0060860 D DE A0060860D DE 561364 C DE561364 C DE 561364C
Authority
DE
Germany
Prior art keywords
crucible
welding purposes
aluminothermic reactions
iron
aluminothermic
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
DEA60860D
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.)
ALUMINOTHERMISCHE und ELEK SCH
Original Assignee
ALUMINOTHERMISCHE und ELEK SCH
Publication date
Priority to DEA60860D priority Critical patent/DE561364C/en
Application granted granted Critical
Publication of DE561364C publication Critical patent/DE561364C/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
    • B23K23/00Alumino-thermic welding
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D1/00Casings; Linings; Walls; Roofs
    • F27D1/10Monolithic linings; Supports therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Description

Es ist bereits vorgeschlagen worden, die dem aluminogenetischen Eisen zuzusetzenden, ihm die Eigenschaften eines legierten Stahls verleihenden Elemente vor und während der Reaktion als Tiegelabschluß zu verwenden. Zu diesem Zweck hat man den Abstichstift mit einer Schicht dieser Elemente bedeckt. Ein bevorzugtes derartiges Element ist bekanntlich Silicium.It has already been proposed that the aluminogenetic iron to be added Elements giving it the properties of an alloy steel before and during To use the reaction as a crucible seal. The tapping pen is used for this purpose covered with a layer of these elements. A preferred such element is known Silicon.

Die Erfindung besteht darin, daß Silicium in Form von Siliciumcarbid zur Bildung des Tiegelverschlusses verwendet wird. Wird das Siliciumcarbid beispielsweise als Brikett über und in dem Abstichloch angebracht, so vermag es den Ausfluß des Eisens so lange aufzuhalten, als Zeit für die Vollendung der Reaktion im Tiegel erforderlich ist. Alsdann öffnet und entleert sich der 'Tiegel selbsttätig. Dadurch wird der Abstichstift entbehrlich.The invention consists in that silicon in the form of silicon carbide to form the Crucible closure is used. If the silicon carbide is used, for example, as a briquette and placed in the tap hole, it can stop the outflow of iron for so long than the time required for the reaction in the crucible to complete. Then the 'crucible opens and empties automatically. This makes the tapping pin unnecessary.

Damit die Zeitdauer vom Beginn der Reaktion bis zur selbsttätigen Öffnung des Tiegelabstichloches stets gleichbleibend ist, ist es vorteilhaft, die Reaktion des Gemisches stets an ein und derselben Stelle innerhalb des Tiegels einzuleiten, z. B. in der Mitte des Gemisches. Um das zu erreichen, kann man beispielsweise die Zündpille am Ende eines Eisenstabes befestigen, der durch die mittlere Öffnung der Tiegelkappe senkrecht so tief hineingestoßen wird, wie es ein Anschlag zuläßt. "Die Zeichnung zeigt schematisch.eine Ausführungsform der Erfindung. Es bezeichnet : α den Tiegel, b die Abstichöffnung, c ein dünnes Eisenblech, d pulverförmiges Siliciumcarbid, e andere Legierungsbestandteile, / das aluminothermische Gemisch, g Tiegelkappe, h den Zündstabj, / den Anschlag über der Öffnung der Tiegelkappe, k die Zündpille. So that the time from the start of the reaction to the automatic opening of the crucible tap hole is always constant, it is advantageous to always initiate the reaction of the mixture at one and the same point within the crucible, e.g. B. in the middle of the mixture. To achieve this, you can, for example, attach the squib to the end of an iron rod which is pushed in vertically through the middle opening of the crucible cap as deep as a stop allows. The drawing shows schematically an embodiment of the invention. It denotes: α the crucible, b the tapping opening, c a thin sheet of iron, d powdered silicon carbide, e other alloy components, / the aluminothermic mixture, g crucible cap, h the ignition rod, / the stop above the opening of the crucible cap, k the squib.

Es ist bekannt, daß Tiegelabstichloch mit einem Pfropfen zu verschließen^ der aus einem brikettierten aluminothermischen Gemisch besteht, das zur Reaktion eine längere, fest bestimmte Zeit als die darüber befindliche Tiegelfüllung benötigt und erst durch das abgeschiedene Metall der Tiegelfüllung entzündet wird. Bei Beendigung der Reaktion innerhalb des Abstichloches wird letzteres für den Durchfluß des Tiegelinhaltes frei.It is known to close the crucible tap hole with a plug consists of a briquetted aluminothermic mixture, which requires a longer, a fixed time than the crucible filling above it and only through the deposited metal of the crucible filling is ignited. At the end of the reaction inside the tapping hole, the latter is free for the contents of the crucible to flow through.

Claims (1)

Patentanspruch:Claim: Tiegel zur Ausführung aluminothermischer Reaktionen, insbesondere für Schweißzwecke, dessen Abstichloch mit einem festen Stoffe verschlossen- ist, der durch das aluminogenetische Eisen: verflüssigt wird, gekennzeichnet durch den Verschluß des Abstichloches mittels SiIiciumcarbids. Crucibles for carrying out aluminothermic reactions, especially for Welding purposes whose tapping hole is closed with a solid substance, the by the aluminogenetic iron: is liquefied, characterized by the closure of the tapping hole by means of silicon carbide.
DEA60860D Crucible for performing aluminothermic reactions, especially for welding purposes Expired DE561364C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA60860D DE561364C (en) Crucible for performing aluminothermic reactions, especially for welding purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA60860D DE561364C (en) Crucible for performing aluminothermic reactions, especially for welding purposes

Publications (1)

Publication Number Publication Date
DE561364C true DE561364C (en) 1932-10-13

Family

ID=6942389

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA60860D Expired DE561364C (en) Crucible for performing aluminothermic reactions, especially for welding purposes

Country Status (1)

Country Link
DE (1) DE561364C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222167A1 (en) * 1973-03-23 1974-10-18 Boutet Camille Automatic outlet thermit welding vessel - avoids pollution of the molten welding material
FR2234089A1 (en) * 1973-06-20 1975-01-17 Gennevilliers Acieries
DE202011100121U1 (en) * 2011-05-02 2011-10-28 Elektro-Thermit Gmbh & Co. Kg Reaction crucible for aluminothermic welds

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222167A1 (en) * 1973-03-23 1974-10-18 Boutet Camille Automatic outlet thermit welding vessel - avoids pollution of the molten welding material
FR2234089A1 (en) * 1973-06-20 1975-01-17 Gennevilliers Acieries
DE202011100121U1 (en) * 2011-05-02 2011-10-28 Elektro-Thermit Gmbh & Co. Kg Reaction crucible for aluminothermic welds

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