DE445395C - Method and device for casting naturally hard or hardened pipes, for example pipes produced by centrifugal casting - Google Patents

Method and device for casting naturally hard or hardened pipes, for example pipes produced by centrifugal casting

Info

Publication number
DE445395C
DE445395C DEB125442D DEB0125442D DE445395C DE 445395 C DE445395 C DE 445395C DE B125442 D DEB125442 D DE B125442D DE B0125442 D DEB0125442 D DE B0125442D DE 445395 C DE445395 C DE 445395C
Authority
DE
Germany
Prior art keywords
pipes
casting
furnace
hardened
pilgrim step
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
DEB125442D
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.)
Buderus AG
Original Assignee
BuderusSche Eisenwerke 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 BuderusSche Eisenwerke AG filed Critical BuderusSche Eisenwerke AG
Priority to DEB125442D priority Critical patent/DE445395C/en
Application granted granted Critical
Publication of DE445395C publication Critical patent/DE445395C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/08Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)
  • Tunnel Furnaces (AREA)

Description

Verfahren und Vorrichtung zum Vergüten von naturharten oder hart gewordenen, beispielsweise durch Schleuderguß erzeugten Rohren.Process and device for tempering naturally hard or hardened, for example tubes produced by centrifugal casting.

Zusatz Patent 443 078. Beim Vergüten von beispielsweise durch Schleuderguß erzeugten Rohren im Glühofen nach dem Patent 443 078 verlassen diese den Glühofen noch mit solcher Hitze, daß sie nicht ohne die Gefahr des Entzündens des Teerbades geteert werden können. Die nach dem Patent 443 078 im Ofen zur Anwendung kommende Pilgerschrittbewegüng stellt ein zweckmäßiges Mittel dar, um die Abkühlung auf kürzerem Wege herbeizuführen. Erfindungsgemäß wird die den Glühofen durchziehende, im Pilgerschritt arbeitende Fördervorrichtung für die zu vergütenden Rohre gleichzeitig auch als Mittel zum Weiterführen derselben durch die Raumluft benutzt, wodurch die Rohre Gelegenheit erhalten, sich unter den gleichen Verhältnissen abzukühlen, wie sie sich vorher erhitzt haben. Oder es werden zwei Pilgerschrittfördervorrichtungen hiiltereinandergeschaltet, von denen die eine außerhalb des Ofens angeordnet ist und die Weiterbeförderung der den Ofen verlassenden Rohre übernimmt. Beide Ausführungsformen sind in der Zeichnung beispielsweise dargestellt.Addition Patent 443 078. When tempering, for example, by centrifugal casting tubes produced in the annealing furnace according to patent 443 078, these leave the annealing furnace nor with such heat that it cannot be without the danger of igniting the tar bath can be tarred. The one used in the furnace according to patent 443 078 Pilgrim pace movement is a useful means of cooling down for a shorter period of time Ways to bring about. According to the invention, the annealing furnace pulling through, Conveyor device working in the pilgrimage step for the pipes to be remunerated at the same time also used as a means of passing the same through the room air, whereby the Pipes are given an opportunity to cool under the same conditions as they have heated up beforehand. Or there will be two pilgrim step conveyors connected one behind the other, one of which is arranged outside the furnace and takes over the further transport of the pipes leaving the furnace. Both embodiments are shown in the drawing, for example.

Die Fördervorrichtung b, d, welche die zu vergütenden Rohre r durch den Ofen führt, wird durch dessen eine Seitenwand hindurch nach außen geführt und fördert die auf der Bahn g hin und zurück rollenden Rohre r nach Durchgang derselben durch den Ofen ins Freie, also in den Abstellraum, wo sie abgekühlt werden. Die Förderkette b, d braucht infolge der Pilgerschrittbewegung nur etwa halb so lang zu sein als ein gleichmäßig umlaufendes Förderband o. dgl. (s. die Abb. i).The conveying device b, d, which guides the pipes r to be remunerated through the furnace, is guided to the outside through one of its side walls and conveys the pipes r rolling back and forth on the path g after they have passed through the furnace into the open, i.e. in the storage room, where they are cooled. As a result of the pilgrim step movement, the conveyor chain b, d only needs to be about half as long as a uniformly circulating conveyor belt or the like (see Fig. I).

Da bei dem Durchtritt der Förderkette b, d durch die Wand des Ofens gewisse Schwierigkeiten eintreten könnten, kann die Weiterführung der Rohre außerhalb des Ofens auch, wie Abb. 2 erkennen läßt, durch ein besonderes, iin Pilgerschritt arbeitendes Fördermittel b1, dl erfolgen, dem die den Ofen verlassenden Rohre r, gegebenenfalls auf einer Schräge g1, zurollen.Since certain difficulties could arise when the conveyor chain b, d passes through the wall of the furnace, the pipes can also be continued outside the furnace, as can be seen in FIG Roll up the tubes r leaving the furnace, optionally on a slope g1.

Claims (3)

PATENTANSPRÜCHE: r. Verfahren zum Vergüten von naturharten oder hart gewordenen, beispielsweise durch Schleuderguß erzeugten Rohren im Glühofen nach Patent .1.43 078, dadurch gekennzeichnet, daß die vergüteten Rohre nach dem Verlassen des Glühofens zwecks Abkühlung im Pilgerschritt weiterbewegt werden. PATENT CLAIMS: r. Process for tempering naturally hard or hardened pipes, for example produced by centrifugal casting, in the annealing furnace according to patent .1.43 078, characterized in that the tempered pipes are moved further after leaving the annealing furnace for the purpose of cooling in the pilgrim step. 2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch r, dadurch gekennzeichnet, daß die die Rohre durch den Ofen hizdurchbewegende Pilgerschrittkette (b, cl) über diesen hinausragt urid die vergüteten Rohre durch die Raumluft im Pilgerschritt weiterbefördert. 2. Apparatus for carrying out the method according to claim r, characterized in that the pilgrim step chain (b, cl) which heats the tubes through the furnace projects beyond this urid further conveys the remunerated tubes through the room air in the pilgrim step. 3. Vorrichtung zur Durchführung des Verfahrens nach Anspruch i, gekennzeichnet durch eine in der Verlängerung der Pilgerschrittkette (b, dl des Ofens außerhalb desselben angeordnete Pilgerschrittkette (b1, dl-), der die Rohre (r) zurollen. 3. Apparatus for performing the method according to claim i, characterized by a pilgrim step chain (b1, dl-) which is arranged in the extension of the pilgrim step chain (b, dl of the furnace outside the same) and to which the tubes (r) roll.
DEB125442D 1926-05-13 1926-05-13 Method and device for casting naturally hard or hardened pipes, for example pipes produced by centrifugal casting Expired DE445395C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB125442D DE445395C (en) 1926-05-13 1926-05-13 Method and device for casting naturally hard or hardened pipes, for example pipes produced by centrifugal casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB125442D DE445395C (en) 1926-05-13 1926-05-13 Method and device for casting naturally hard or hardened pipes, for example pipes produced by centrifugal casting

Publications (1)

Publication Number Publication Date
DE445395C true DE445395C (en) 1927-06-03

Family

ID=6996461

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB125442D Expired DE445395C (en) 1926-05-13 1926-05-13 Method and device for casting naturally hard or hardened pipes, for example pipes produced by centrifugal casting

Country Status (1)

Country Link
DE (1) DE445395C (en)

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