DE1802282A1 - Process for the production of a seamless fin tube sheet in a combined extrusion and rolling process - Google Patents

Process for the production of a seamless fin tube sheet in a combined extrusion and rolling process

Info

Publication number
DE1802282A1
DE1802282A1 DE19681802282 DE1802282A DE1802282A1 DE 1802282 A1 DE1802282 A1 DE 1802282A1 DE 19681802282 DE19681802282 DE 19681802282 DE 1802282 A DE1802282 A DE 1802282A DE 1802282 A1 DE1802282 A1 DE 1802282A1
Authority
DE
Germany
Prior art keywords
fin tube
extrusion
production
press
short
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.)
Pending
Application number
DE19681802282
Other languages
German (de)
Inventor
Walsdorf Rias
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 DE19681802282 priority Critical patent/DE1802282A1/en
Priority to DE19691909574 priority patent/DE1909574A1/en
Publication of DE1802282A1 publication Critical patent/DE1802282A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/04Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of bars or wire
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/02Making uncoated products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/02Making uncoated products
    • B21C23/04Making uncoated products by direct extrusion
    • B21C23/08Making wire, bars, tubes
    • B21C23/10Making finned tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00Profiling tools for metal extruding
    • B21C25/02Dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0622Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by two casting wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07Flat, e.g. panels
    • B29C48/08Flat, e.g. panels flexible, e.g. films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/35Extrusion nozzles or dies with rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07Flat, e.g. panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

" Verfahrmen zur Herstellung einer nahtlosen Flossemrohrtafel in einem kombinierteh Strangpresse-Walzvorgang " Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer aus mehreren Rohrsträngen bestehenden Flossenrohrtaf ei, die auf einer Strangpresse in einem Irbeitsgang erzielt wird, unter Anwendung von Mehrfach-Profilwalzen einer als Mundstück dienemden Walzeinrichtung."Process for the production of a seamless reed panel in one Combined Extrusion-Rolling Operation "The invention relates to a method for the production of a Flossenrohrtaf ei consisting of several pipe strings, the is achieved on an extruder in one operation, using multiple profile rollers a rolling device serving as a mouthpiece.

Bei diesem Verfahren werden mehrere, beispielsveise vier, Rohrstränge zu einer Tafel nahtlos vereinigt, wodurch sich erhebliche Vorteile gegendber der Einzelfertigung von Flossonrohren ergeben. Auf beiden Seiten der Tafeln Fig. 3 i befinden sich kurze, nockenförmige Flossen j, durch deren Verschweissen mit den entsprechenden Flossen der Nachbartafeln eine an sich bekannte Flossenrohrwand zusammengefügt werden kann. Diese Flossenrohrwände werden zum Beispiel zum Bau gasdichter Brennkammern in Dampferzeugungsanlagen verwendet. In this process, several, for example four, pipe strings seamlessly combined into one table, which has considerable advantages over the One-off production of Flosson pipes. On both sides of the panels Fig. 3 i there are short, cam-shaped fins j, by welding them with the corresponding fins of the neighboring panels, a fin tube wall known per se joined together can be. These fin tube walls are used, for example, to build gas-tight combustion chambers used in steam generating systems.

Die zwischen den Rohrsträngen in einem Steg Fig. 2 k vereinigten Doppelflossen haben, für jeden Rohrstrang geschen, einem nockenartige Form wie bei j, das Heisst mit breitem Fussquerschnitt, zwecks vorteilhaften Wärmefluss zum eigentlichen Rohrkörper hin. Durch die Anwendung der nach diesem Verfahren hergestellten Rohrtafeln ergibt sich eine erhebliche Verminderung der Schweissarbeiten bei der Herstellung einer Rohrwand. The united between the pipe strings in a web Fig. 2k Double fins have a cam-like shape for each pipe string, as in j, that means with a wide foot cross-section, for the purpose of advantageous heat flow to the actual Pipe body. By using the pipe panels produced by this process there is a considerable reduction in welding work during manufacture a pipe wall.

Die Ausgestaltung der obenerwähnten @@ Wal@einrichtung für Strangpressen @ für das Verfahren zur Herstellung von Mehrfaoh-Flossenrohrtafeln ergibt sich aus den beigefägten Zelchnungen Fig, 1 bis 5 im Masstab 1 : 10, bei denen die angenommenen Vorhäitnises einer vertikalen, hyd@@ullschen Strangpresse zugrundegelegt sind. Die Darstellung der Rohrta@e@ Daruht auf de@ gebräuchlichsten Flossenrohrabmessungen@ Anssendurchmesser 57 mm, Wanddicke 5 mm, Profilbreite 75 mm, Gesantbreite einer Vierrohrtafel 300 mm. The design of the above-mentioned device for extrusion presses @ for the process for the production of Mehrfaoh fin tube panels results from the enclosed figures Fig. 1 to 5 on a scale of 1:10, in which the assumed Vorhäitnises a vertical, hyd @@ ullschen extrusion are based. the Representation of the Rohrta @ e @ Daruht on de @ most common ones Fin tube dimensions @ External diameter 57 mm, wall thickness 5 mm, profile width 75 mm, total width of one Four-pipe panel 300 mm.

Fig. 1 zeigt im Aufr@iss quer zu den Walzenschsen eine Walzeinrichtung a, die an den Rezipienten b einer normalen Strangpresse angeflanscht ist. c ist ein rechteckiger Block, @ ist einer der vorgeschenen Dorne, die in @blicher Weise en den Druckstempel@ der Prosse befestigt sind. In diesen Falle wird der vorgelochte Block c, der @@ den Resipienten b etwa in seinor ganzen Länge ausfüllt, in einem Hub gans herausgopresst. Fig. 1 shows a rolling device in an outline transversely to the roller shafts a, which is flanged to the recipient b of a normal extruder. c is a rectangular block, @ is one of the previous mandrels that @ the usual way en the pressure stamp @ of the bars are attached. In this case the pre-punched Block c, which @@ fills the resipient b approximately in its entire length, in one Hub goose pressed out.

Fig. 2 zeigt in Querschnitt A - B von Fig. 1 die Mehrfachprofilwalzen @ mit vier durchgängen h und den Dornen d. Fig. 2 shows in cross section AB from Fig. 1 the multiple profile rollers @ with four passages h and the thorns d.

Fig. 3 zeigt in Anfriss längs zu den Walzonachsen die Anordnung der vier Dorne d, ferner in A@frise aund im Querschnitt die in Durchgang durch die Walzon entstehende Flossenpohrtafel 1. Fig. 3 shows in partial plan along the Walzon axes the arrangement of the four spikes d, also in a @frise a and in cross section the one in passage through the Walzon resulting fin ear panel 1.

Mit j sind die @usseren, nockonförmigen Flosson der Tafel bezeichnet, welche Stege einen Querschnitthaben, der zwei nockenförmigen Flossen ontspricht. /- Mit k sind die Stege zwischen den Rohrsträngen bezeichnet, Fig. 4 zeigt in Ahfrise längs zu den Walzenachsen eine andore Anordnung der vier Dorne d, die mit einer mehrarmigen Krouzbrücke @ vorbunden und auf der Ebene C - D in dem oberem Gehäuseteil der Walzeinrichtung a gelagert sind. Die Dorue d können auf der Ebene C - D enden, oder, beim Einsatz von vorgelochten Blöcken, je nach deren Länge in den Rezipienten b hineinragen. In der Darstollung Fig. 4 ist angenommen, dass der Block @ etwa die halbe Höhe des Rozipienten b einnimmt und dass ein zweiter, vorgelochter Bloch in komtinniorlichen Arbeitsgang den ersten Blocj vor sich her durch dan trichterförmigen Einpressrann f und die rotierenden Walzen hindurchtroibt. Diese Dornanordnung ist-zum Beispiel dann vorteilhaft, wenn je nach Rohrdurchmessor oder sonstigen Umstämden die Verwendung langer, am Presstempel befestigter Dorne nicht zweckmässig ist.The @ outer, nockon-shaped flossons of the table are denoted by j, which webs have a cross-section corresponding to two cam-shaped fins. / - The webs between the pipe strings are denoted by k, Fig. 4 shows in Ahfrise along the roller axes an andore arrangement of the four mandrels d, which with a multi-armed Krouzbrücke @ and on level C - D in the upper part of the housing the rolling device a are stored. The Dorue d can end on level C - D, or, when using pre-punched blocks, depending on their length in the recipient b protrude. In the illustration of FIG. 4 it is assumed that the block @ is about the half the height of the rozipient b and that a second, pre-punched bloch in Komtinniorlichen work the first bloc in front of you through the funnel-shaped Press in and the rotating rollers drift through. This spine arrangement is-to Example advantageous if depending on the pipe diameter or other circumstances the use of long mandrels attached to the press ram is not appropriate.

Fig. 5 zoigt in Querschnitt C-D von Fig. 4 Form und Lagorung der Mehrfachbräche @ und die mit ihr vorbundenen Dorme d. Fig. 5 shows in cross section C-D of Fig. 4 the shape and location of the Mehrfachbrächen @ and the dorme tied with it.

Die boiden Querarme @ können auch zwecks freierem Matorialurchgang fortfallen. Ferner zeigt Fig. 4 @om auf der Zbese C - D von Fig. 4 begisnomdon trichtorfö@migen Einpressra@@ f.The boiden cross arms @ can also for the purpose of a freer matorial passage fall away. Furthermore, Fig. 4 @om shows on the Zbese C - D of Fig. 4 begisnomdon funnel-shaped Press-fit @@ f.

Claims (4)

P a t e n t a n s p r ü c h e P a t e n t a n s p r ü c h e Verfahren zur Herstellung einer nahtlosen Mchrfach-Flossenrohrtufel in einem Arbeitzgang, d a d u r c h g e k e n n z e i c h n e t, dass eine als Mundstück dienende Walzeinrichtung einer Strangpresse mit Mchrfach-Profilwalzen nd mehreren Damen ausge -rostet ist.Method of making a seamless Mchrfach fin reed devil in one work step, that is, that one is used as a mouthpiece Serving rolling device of an extrusion press with multiple profile rollers and several Women is rusted out. 2) Verfahren nach Anspruch 1), d a d u r c h g e k e n n z e i c h n e t, dass die Ansformung der Nehrfach-Flossenrohrtafel in einem kombinierten Strangpress-Valzvorgang geschicht. 2) Method according to claim 1), d a d u r c h g e k e n n z e i c h n e t that the molding of the multiple fin tube panel combined in one Extrusion-rolling process history. 3 ) Verfahren nach Anspruch t ) und 2 ), dadurch gekennzeichnet, dass entwader mch@@ere lange Dorne am Druckstempel der Presse in @blicher Weise befestigt sind, oder dass kurze Dorne mit einer mehrarmigen Krausbrücke verbunden und unsbhängig vom Presstempel auf der oberen @oene der @alzeinrichtung gelagert sind.3) Method according to claim t) and 2), characterized in that entwader mch @@ ere long mandrels attached to the pressure stamp of the press in the usual way are, or that short thorns connected to a multi-armed Krausbrücke and independent from the press ram are stored on the upper oene of the rolling device. 4) Verfahren nach Anspruch 1), 2) und 3), d a d u r c h g e k e n nzeichnet, dass die kurzen Dorne nach Anspruch 3) in den Resipienten hineinragen können und ein kontinuierlichen Arbeiter mit halblangen Blöcken und halbem Pros@@ub in der Weise er@öglichem, dass ein zweiter, kurzer Block jeweils den ersten vor zich her durch die rotierenden Walzen treibt.4) Method according to claim 1), 2) and 3), d a d u r c h g e k e n It is indicated that the short spikes protrude into the resipient according to claim 3) can and a continuous worker with half-length blocks and half-pros @@ ub in such a way that a second, short block precedes the first drifts through the rotating rollers. L e e r s e i t eL e r s e i t e
DE19681802282 1968-03-18 1968-10-10 Process for the production of a seamless fin tube sheet in a combined extrusion and rolling process Pending DE1802282A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19681802282 DE1802282A1 (en) 1968-10-10 1968-10-10 Process for the production of a seamless fin tube sheet in a combined extrusion and rolling process
DE19691909574 DE1909574A1 (en) 1968-03-18 1969-02-26 Plastic iron or non-iron rods simultaneously - produced an extrusion-rolling process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681802282 DE1802282A1 (en) 1968-10-10 1968-10-10 Process for the production of a seamless fin tube sheet in a combined extrusion and rolling process

Publications (1)

Publication Number Publication Date
DE1802282A1 true DE1802282A1 (en) 1970-09-24

Family

ID=39936317

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681802282 Pending DE1802282A1 (en) 1968-03-18 1968-10-10 Process for the production of a seamless fin tube sheet in a combined extrusion and rolling process

Country Status (1)

Country Link
DE (1) DE1802282A1 (en)

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