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 processInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/04—Manufacture 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
- B21C23/10—Making finned tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0622—Continuous 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion 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
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion 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
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion 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
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/35—Extrusion nozzles or dies with rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion 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
- B29C48/07—Flat, 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)
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) |
-
1968
- 1968-10-10 DE DE19681802282 patent/DE1802282A1/en active Pending
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