DE750423C - Method and device for lining metal pipes - Google Patents

Method and device for lining metal pipes

Info

Publication number
DE750423C
DE750423C DEZ27732D DEZ0027732D DE750423C DE 750423 C DE750423 C DE 750423C DE Z27732 D DEZ27732 D DE Z27732D DE Z0027732 D DEZ0027732 D DE Z0027732D DE 750423 C DE750423 C DE 750423C
Authority
DE
Germany
Prior art keywords
metal
mandrel
pipe
metal pipes
solidifying
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
DEZ27732D
Other languages
German (de)
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 filed Critical
Priority to DEZ27732D priority Critical patent/DE750423C/en
Application granted granted Critical
Publication of DE750423C publication Critical patent/DE750423C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating With Molten Metal (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Description

Verfahren und Vorrichtung zum Auskleiden von Metallröhren Es sind mehrere Verfahren bekannt, um die Innenwand von Metallröhren mit einem anderen Metall oder einer Legierung zu überziehen. Man kann das Rohr in die Schmelze des anderen Metalls tauchen, man kann seine Innenwand durch Schleudern mit dem anderen Metall überziehen oder auf ihr das andere Metall elektrolytisch niederschlagen.Method and apparatus for lining metal pipes There are Several methods are known to make the inner wall of metal tubes with another metal or to be coated with an alloy. One can put the pipe in the melt of the other Dip into the metal, you can get its inner wall by hurling it with the other metal coat or electrolytically deposit the other metal on it.

Das Verfahren vorliegender Erfindung hat folgenden Grundgedanken: In das innen zu überziehende Rohr wird ein Dorn so gesenkt, daß zwischen ihm und der Rohrwand nur ein schmaler, ringförmiger Schlitz bleibt. Das dem Überzug dienende Metall wird von oben in das Rohr gegossen. In dem unteren Teil des schmalen Schlitzes erstarrt es durch eine Innenkühlung des kolbenförmigen Dornansatzes schnell. Der Dorn wird gezogen und dabei das heiße, erstarrte oder noch erstarrende Nietall fest gegen die Rohrwand gepreßt. Von oben fließt in gleichem Maße neues :Metall in das Rohr, wie es unten zum Überzug verbraucht wird.The process of the present invention is based on the following principles: A mandrel is lowered into the tube to be covered inside so that between it and only a narrow, annular slot remains in the pipe wall. The one used for the coating Metal is poured into the pipe from above. In the lower part of the narrow slit it solidifies quickly due to internal cooling of the piston-shaped mandrel attachment. Of the The mandrel is pulled and the hot, solidified or still solidifying rivet is fixed pressed against the pipe wall. New flows in equal measure from above: metal into that Tube as it is consumed below for coating.

Es sind allerdings schon Verfahren und Vorrichtungen bekannt, bei denen das dem Überzug dienende Metall von oben in das Rohr eingeführt und unter Verwendung eines Kerns zum Erstarren gebracht wird. Aber hier dient der Kern nicht dazu, den Überzug auf die Rohrwand zu pressen und sein Gefüge zu verdichten. Er hat vielmehr den Zweck, durch seine auf und nieder gehende Bewegung das der Auskleidung dienende, flüssige Metall zu entgasen. Im übrigen spielt der Kern nur die Rolle wie in einer Gußform.However, methods and devices are already known in where the metal used for the coating is introduced into the pipe from above and below Use of a core is made to solidify. But the core does not serve here to press the coating onto the pipe wall and to compress its structure. He its purpose is rather that of the lining through its up and down movement serving to degas liquid metal. Otherwise, the core only plays the role like in a mold.

Ferner ist ein Verfahren bekannt, bei dem das der Verkleidung der Rohrinnenwand dienende Metall von oben in das Rohr eingeführt wird und rings um einen Kern erstarrt. Aber auch hier dient der Kern nicht zum Anpressen des Überzugs an die Rohrwand, sondern nur zur gleichmäßigen Verteilung des Metalls längs derselben.Furthermore, a method is known in which the cladding of the Inner pipe wall serving metal is introduced into the pipe from above and all around a core solidified. But here, too, the core does not serve to press the coating on to the pipe wall, but only for the even distribution of the metal along the same.

Claims (1)

PATENTANSPRÜCHE: z. Verfahren zum Auskleiden von Metallrohren mit Metall oder einer Legierung unter Verwendung eines beweglichen Dorns; dadurch gekennzeichnet,.daß das von oben in das Rohr gefüllte Überzugsmetall in seinem erstarrenden unteren Teil durch einen aufsteigenden Dorn gegen die Rohrwandung gepreßt wird. a. Vorrichtung zur Ausführung des Verfahrens nach Anspruch r, dadurch gekennzeichnet, daß der in dem Rohr (a) in einem bestimmten Abstand geführte und mit einem kolbenförmigen Ansatz versehene Dorn (b) zwei parallel zur Längsachse verlaufende Bohrungen (c und d) für die Wasserführung oder Dampfführung besitzt und der kolhenförinige Dornansatz (e) mit Durchbrüchen für die Kühlung des erstarrenden Metalls versehen ist. Zur -Abgrenzung des Anmeldungsgegen-' standen vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: deutsche Patentschriften .... N r. ;72@ 23h, 22,9635- PATENT CLAIMS: e.g. Method of lining metal pipes with metal or an alloy using a movable mandrel; characterized in that the coating metal filled into the tube from above is pressed against the tube wall in its solidifying lower part by an ascending mandrel. a. Device for carrying out the method according to claim r, characterized in that the mandrel (b) guided in the pipe (a) at a certain distance and provided with a piston-shaped extension has two bores (c and d) running parallel to the longitudinal axis for the water flow or Has steam duct and the kolhenförinige mandrel approach (e) is provided with openings for cooling the solidifying metal. To distinguish the subject matter of the application from the state of the art, the following publications were considered in the granting procedure: German patents .... N o. ; 72 @ 23h, 22.9635-
DEZ27732D 1943-02-25 1943-02-25 Method and device for lining metal pipes Expired DE750423C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ27732D DE750423C (en) 1943-02-25 1943-02-25 Method and device for lining metal pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ27732D DE750423C (en) 1943-02-25 1943-02-25 Method and device for lining metal pipes

Publications (1)

Publication Number Publication Date
DE750423C true DE750423C (en) 1944-12-21

Family

ID=7626636

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ27732D Expired DE750423C (en) 1943-02-25 1943-02-25 Method and device for lining metal pipes

Country Status (1)

Country Link
DE (1) DE750423C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19823728A1 (en) * 1998-05-27 1999-12-09 Fuerstlich Hohenzollernsche We Method for producing a metallic composite body and composite body

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE228635C (en) *
DE728238C (en) * 1939-12-17 1942-11-23 Ig Farbenindustrie Ag Method and device for the homogeneous inner lining of pipes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE228635C (en) *
DE728238C (en) * 1939-12-17 1942-11-23 Ig Farbenindustrie Ag Method and device for the homogeneous inner lining of pipes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19823728A1 (en) * 1998-05-27 1999-12-09 Fuerstlich Hohenzollernsche We Method for producing a metallic composite body and composite body

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