DE46200C - Treatment of metals by means of electric current - Google Patents

Treatment of metals by means of electric current

Info

Publication number
DE46200C
DE46200C DENDAT46200D DE46200DA DE46200C DE 46200 C DE46200 C DE 46200C DE NDAT46200 D DENDAT46200 D DE NDAT46200D DE 46200D A DE46200D A DE 46200DA DE 46200 C DE46200 C DE 46200C
Authority
DE
Germany
Prior art keywords
metals
steel
coal
electric current
iron
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 - Lifetime
Application number
DENDAT46200D
Other languages
German (de)
Original Assignee
R. K. BOYLE in Shepherds Bush, Middlesex, England
Publication of DE46200C publication Critical patent/DE46200C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/60Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
    • C23C8/62Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
    • C23C8/64Carburising
    • C23C8/66Carburising of ferrous surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Claims (1)

PATENTAMT.PATENT OFFICE. Die Erfindung besteht in der Anwendung des elektrischen Stromes, um Metallen eine in ihrer Zusammensetzung veränderte Oberfläche dadurch zu geben, dafs man diesen Metallen Bestandtheile entzieht, oder dieselben veranlafst, Verbindungen einzugehen, welche die gewünschten Veränderungen der Metalle, sei es durch Härten, Erweichen oder Legiren, bewirken. Speciell eignet sich diese Erfindung zur Carburirung des Eisens, um es unter dem Einflufs des elektrischen Stromes, d. h. des Voltabogens von grofser Energie, in Stahl zu verwandeln.The invention consists in the application of electric current to a metal in to give their composition a modified surface by using these metals Withdraws constituents, or causes them to enter into connections, which the desired Cause changes in metals, be it through hardening, softening or alloying. This invention is particularly suitable for carburizing iron in order to place it under the Influence of the electric current, d. H. of the voltaic arc of great energy, in steel transform. Versuche haben ergeben, dafs Eisen leicht Kohlenstoff aufnimmt, wenn es, mit pulverisirter oder feiner Kohle bedeckt, der Wirkung des elektrischen Stromes bezw. des Voltabogens ausgesetzt wird. Die Oberfläche wird zum Schmelzen gebracht und die Kohle dringt in die flüssige Schicht ein. Das Eisen erlangt hierdurch die Eigenschaften des Stahles.Experiments have shown that iron easily takes up carbon when it is pulverized or fine coal covered, respectively the effect of the electric current. of the voltaic arc is exposed. The surface is melted and the coal penetrates into it the liquid layer. This gives the iron the properties of steel. Bei diesem Verfahren wird das zu bearbeitende Werkstück mit dem einen Pol (vorzugsweise dem negativen) einer Elektricitätsquelle in Verbindung gebracht, während der positive Pol in bekannter Weise mit einer Kohlenplatte oder einem Stab verbunden wird, welcher in einem die Wärme nicht leitenden Halter befestigt ist.In this process, the workpiece to be machined is connected to one pole (preferably the negative) of a source of electricity, during the positive pole is connected to a carbon plate or rod in a known manner, which is fixed in a holder that does not conduct heat. In beiliegender Zeichnung ist eine Vorrichtung zur praktischen Ausführung des Verfahrens dargestellt. A ist ein mit einer Asbestplatte bedeckter Tisch , welcher eine mit dem negativen Pol einer Dynamomaschine D durch einen Draht C verbundene Metallplatte B trägt. Der andere Pol ist mit einem Ring E verbunden, welcher auf einer Stange F längs des Tisches A hin- und hergleiten kann. Von diesem Ring E führt eine leicht biegsame Leitung G nach einem Halter H, welcher eine Kohle / trägt und mit einem isolirenden Holzgriff J versehen ist.In the accompanying drawing, a device for the practical implementation of the method is shown. A is an asbestos-covered table which supports a metal plate B connected to the negative pole of a dynamo machine D by a wire C. The other pole is connected to a ring E , which can slide back and forth along the table A on a rod F. From this ring E a slightly flexible line G leads to a holder H which carries a carbon / and is provided with an insulating wooden handle J. Das zu bearbeitende Stück wird auf die Platte B gelegt, mit Kohle oder einem sonstigen Material, welches die Oberfläche veräiidern, stählen oder legiren könnte, bedeckt, und die Kohle / leicht darüber hingeführt. Es bildet sich eine Anzahl Voltabogen, welche die Schmelzung bezw. das Eindringen der Kohle oder der sonstigen Materialien bewirkt, welche die Oberfläche verstählen oder sonst verändern sollen.The piece to be worked on is placed on plate B , covered with coal or some other material which could alter, steel, or alloy the surface, and the coal / is gently guided over it. A number of voltaic arcs are formed, which the melting respectively. causes the penetration of coal or other materials that are intended to steel or otherwise change the surface. Die Qualität des erzeugten Stahles hängt von der angewendeten Kohlenmenge ab, die Stärke der Schicht, also die Tiefe der Schmelzung, von der Intensität des elektrischen Stromes. Anstatt weiches Eisen zu verstählen, kann man z. B. auch, wo dies angebracht ist, auf Stahl eine Schicht weichen Eisens erzeugen, indem man an Stelle der Kohle ein Material benutzt, welches dem Stahl den Kohlenstoff entzieht. Ebenso können andere Metalle bezw. Materialien an Stelle des Eisens sowohl, als auch der Kohle treten, um die gewünschte Veränderung der Metalle zu bewirken. Es können z. B. Legirungen in irgend welcher Form hergestellt oder umgekehrt Bestandtheile oder Metalle eliminirt oder sonstige Veränderungen erzielt werden.The quality of the steel produced depends on the amount of coal used, the strength the layer, i.e. the depth of the melting, on the intensity of the electric current. Instead of steeling soft iron, you can z. B. also, where appropriate, on steel create a layer of soft iron by using a material instead of coal which removes the carbon from the steel. Likewise, other metals can bezw. materials in place of iron as well as charcoal take the desired change to effect the metals. It can e.g. B. Alloys made in any form or conversely, components or metals are eliminated or other changes are achieved will. Patenτ-Anspruch:Patenτ claim: Bei dem im Patent-Anspruch 1. des Patentes' No. 38011 gekennzeichneten Verfahren der Behandlung von Metallen mittelst des elektrischen Stromes die Anwendung von Kohlen pulver zur Erzeugung einer gehärteten Oberfläche. In the case of the patent claim 1 of the patent ' No. 38011 characterized process of the treatment of metals by means of the electrical Stromes the use of carbon powder to create a hardened surface. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT46200D Treatment of metals by means of electric current Expired - Lifetime DE46200C (en)

Publications (1)

Publication Number Publication Date
DE46200C true DE46200C (en)

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Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT46200D Expired - Lifetime DE46200C (en) Treatment of metals by means of electric current

Country Status (1)

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DE (1) DE46200C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604836A1 (en) * 1992-12-28 1994-07-06 Adam Opel Ag Method for making wear-resistant surface coatings on steel pieces and steel pieces with such coatings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604836A1 (en) * 1992-12-28 1994-07-06 Adam Opel Ag Method for making wear-resistant surface coatings on steel pieces and steel pieces with such coatings

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