DE640984C - Manufacture of a corrosion-resistant seamless or welded steel pipe - Google Patents

Manufacture of a corrosion-resistant seamless or welded steel pipe

Info

Publication number
DE640984C
DE640984C DEB172020D DEB0172020D DE640984C DE 640984 C DE640984 C DE 640984C DE B172020 D DEB172020 D DE B172020D DE B0172020 D DEB0172020 D DE B0172020D DE 640984 C DE640984 C DE 640984C
Authority
DE
Germany
Prior art keywords
corrosion
steel pipe
welded steel
resistant seamless
manufacture
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
DEB172020D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEB172020D priority Critical patent/DE640984C/en
Application granted granted Critical
Publication of DE640984C publication Critical patent/DE640984C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/08—Coatings characterised by the materials used by metal

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating With Molten Metal (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Description

Herstellung eines korrosionsbeständigen nahtlosen oder geschweißten Stahlrohres Die Erfindung betrifft eine weitere Ausbildung des Verfahrens des Patents 629 11a. Nach dem Hauptpatent wird zur Herstellung korrosionsbeständiger Stahlrohre auf die Innenfläche des Rohres sein Kupferdraht in Schraubenform angelegt, die Fläche miteinem Flußmittel überzogen und das Rohr dann in einen mit reduzierenden Gagen gefüllten Ofen gebracht, um den Kupferdraht zum Schmelzen zu bringen.Manufacture of Corrosion Resistant Seamless or Welded Steel Pipe The invention relates to a further development of the method of patent 629 11a. According to the main patent, for the production of corrosion-resistant steel pipes, its copper wire is laid in screw form on the inner surface of the pipe, the surface is coated with a flux and the pipe is then placed in a furnace filled with reducing gages in order to melt the copper wire.

Nach der vorliegenden Erfindung wird nun das Verfahren des Hauptpatents in der Weise weiter ausgebildet, daß auf den Kupferüberzug ein weiterer Metallüberzug in gleicher Weise wie der Kupferüberzug aufgebracht wird. Dieser Überzug besteht aus einem Metall, d_as einen niedrigeren Schmelzpunkt als das Kupfer besitzt, - wie Tombak oder Messing. Dies ist notwendig, damit beim Aufschmelzen dieses Metalls der bereits vorhandene Kupferüberzug nicht wieder zum Schmelzen gebracht wird. Das Messing wird also wiederum in Schraubenform gebracht, und diese Schraube wird in das Innere des verkupferten Stahlrohres eingeführt, so daß sich die Schraube an de verkupferte Innenwand gut anschließend anlegt. Beim Schmelzvorgang findet die Zuführung eines entsprechenden Schweißmittels, wie Borax in Verbindung mit Borsäure, statt,.und dadurch entsteht der besondere Überzug aus dem genannten Metall. Es ist so gewissermaßen sein Rohr aus Trimetall entstanden, das in der Hauptsache aus Stahl besteht, mit ,einem Kupferüberzug, auf dem ein zweiter Überzug aus Messing gelagert ist.According to the present invention, the method of the main patent further developed in such a way that a further metal coating is applied to the copper coating is applied in the same way as the copper coating. This coating exists from a metal, which has a lower melting point than the copper, like tombac or brass. This is necessary so that when this metal is melted the already existing copper coating is not melted again. That So brass is brought into screw form again, and this screw is turned into the inside of the copper-plated steel pipe inserted so that the screw is attached The copper-plated inner wall is applied well afterwards. During the melting process, the Supply of a suitable welding agent, such as borax in connection with boric acid, instead, .and this creates the special coating of the metal mentioned. It is this is how his pipe was made from trimetal, as it were, mainly from steel consists, with, a copper coating on which a second coating made of brass is mounted is.

Während des Schmelzens wird das Rohr zweckmäßig in Drehung versetzt, um die Verteilung des Überzuges möglichst gleichmäßig zu gestalten. Denn das geschmolzene Metall wird durch die Drehung innerhalb des Schmelzofens gegen die Innenwand des Rohres geschleudert und platt angedrückt. Es wird ,also das Messing sehr gleichmäßig und sehr fein über die ganze Innenwand verteilt; der Fluß des Messings ,an der Rohrwand geht sehr gleichmäßig vor sich, und der Überzug wird gleichmäßig dichter. Gibt man dem Rohr seine Schräglage, so wird durch diese und die Drehbewegung, verhütet, daß das überflüssige geschmolzene Messing sich am unteren Ende ansetzt rund seinen stärkeren überzugergibt. Die Drehzahl des Rohres bewegt sich bei diesem Vorgang zweckmäßig zwischen rgo bis aoo Umdrehungen in der Minute.During the melting, the pipe is expediently set in rotation, in order to make the distribution of the coating as even as possible. Because the melted Metal is turned against the inner wall of the furnace by the rotation inside the furnace Rohres thrown and pressed flat. It becomes very even, so the brass and very finely distributed over the entire inner wall; the flow of brass, on the pipe wall goes on very evenly, and the coating becomes evenly denser. To give the tube its inclined position, this and the rotary movement prevent that the superfluous molten brass attaches itself to the lower end around its stronger one overdoes. The speed of the pipe moves appropriately during this process between rgo to aoo revolutions per minute.

Claims (3)

PATENTANSPRÜCHE: r. Weitere Ausbildung des Verfahrens zur Herstellung eines korrosionsbeständigen nahtlosen ioder geschweißten Stahlrohres nach Patent 629 112, dadurch gekennzeichnet, daß nach dem Aufbringen des Kupferüberzuges auf die Innenwandung des Rohres ein Draht aus einem Metall, das einen niedrigeren Schmelzpunkt als das Kupfer hat, in Schraubenform gut anschließend angelegt, die- überzogene Fläche mit einem Flußmittel, wie z. B. Bora. mit Borsäure, überzogen und in einem mit reduzierender Atmosphäre erfüllten Ofen zum Schmelzen gebracht wird. PATENT CLAIMS: r. Further training of the manufacturing process a corrosion-resistant seamless or welded steel pipe after Patent 629 112, characterized in that after the application of the copper coating on the inner wall of the tube a wire made of a metal, which has a lower Melting point than the copper has, in screw form well then applied, the- coated surface with a flux, such as. B. Bora. coated with boric acid and melted in a furnace filled with a reducing atmosphere will. 2. Herstellung eines korrosionsbeständigen nahtlosen oder geschweißten Stahlrohres nach Anspruch 1, dadurch gekennzeichnet, daß das Röhr beim Schmelzvor--gang in Drehung um seine Achse versetzt wird. 2. Manufacture of corrosion-resistant seamless or welded steel pipe according to claim 1, characterized in that the tube rotates during the melting process is offset around its axis. 3. Korrosionsbeständiges nahtloses oder geschweißtes Stahlrohr, hergestellt nach dem Verfahren gemäß Anspruch 1, gekennzeichnet durch zwei übeneinandergeschichtete flberzüge von Metallen mit verschiedenen Schmelzpunkten.3. Corrosion resistant seamless or welded Steel pipe produced by the method according to claim 1, characterized by two superimposed coatings of metals with different melting points.
DEB172020D 1935-12-03 1935-12-03 Manufacture of a corrosion-resistant seamless or welded steel pipe Expired DE640984C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB172020D DE640984C (en) 1935-12-03 1935-12-03 Manufacture of a corrosion-resistant seamless or welded steel pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB172020D DE640984C (en) 1935-12-03 1935-12-03 Manufacture of a corrosion-resistant seamless or welded steel pipe

Publications (1)

Publication Number Publication Date
DE640984C true DE640984C (en) 1937-01-16

Family

ID=7006916

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB172020D Expired DE640984C (en) 1935-12-03 1935-12-03 Manufacture of a corrosion-resistant seamless or welded steel pipe

Country Status (1)

Country Link
DE (1) DE640984C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2941016A1 (en) * 1979-10-10 1981-04-23 William Vincent Windsor Ontario Youdelis Coating low-melting gold alloy onto metallic substrate - by applying as powder slurry with flux in organic medium and firing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2941016A1 (en) * 1979-10-10 1981-04-23 William Vincent Windsor Ontario Youdelis Coating low-melting gold alloy onto metallic substrate - by applying as powder slurry with flux in organic medium and firing

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