DE1078074B - Device for welding seam tubes, in particular screw seam tubes, made from tape - Google Patents
Device for welding seam tubes, in particular screw seam tubes, made from tapeInfo
- Publication number
- DE1078074B DE1078074B DEH28048A DEH0028048A DE1078074B DE 1078074 B DE1078074 B DE 1078074B DE H28048 A DEH28048 A DE H28048A DE H0028048 A DEH0028048 A DE H0028048A DE 1078074 B DE1078074 B DE 1078074B
- Authority
- DE
- Germany
- Prior art keywords
- rollers
- pipe
- sheet metal
- approximately
- upsetting
- 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
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/12—Making tubes or metal hoses with helically arranged seams
- B21C37/122—Making tubes or metal hoses with helically arranged seams with welded or soldered seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/08—Seam welding not restricted to one of the preceding subgroups
- B23K11/082—Seam welding not restricted to one of the preceding subgroups of three-dimensional seams
- B23K11/084—Seam welding not restricted to one of the preceding subgroups of three-dimensional seams of helicoïdal seams
Description
Vorrichtung zum Schweißen aus Band hergestellter Naht-, insbesondere Schraubennahtrohre Bei der Herstellung aus Band geschweißter Rohre ist es bekannt, die miteinander zu verschweißenden Bandkanten durch Stauchen nach beiden Seiten zu verdicken, und zwar teils zu dem Zweck, der durch Abbrand entstehenden Verminderung der Wandstärke in der Umgebung der Schweißnaht vorzubeugen., teils zu dem Zweck, an den Kanten leicht geneigte Flächen herzustellen., die nach dem Biegen des Bandes auf Rohrform einander parallel liegen. Es ist ferner bekannt, beim Widerstandschweißen von Rohren mit Längsnaht oder Schraubennaht beiderseits des Bandkantenstoßes Druckwalzenpaare angreifen zu lassen, die zur Zuführung des Schweißstromes dienen. Endlich werden Druckwalzen, die keine Elektroden darstellen, dazu benutzt, die durch induktive Erwärmung auf Schweißhitze gebrachten Kanten gegeneinanderzupressen.Device for welding seams made from tape, in particular Screw seam pipes In the manufacture of pipes welded from tape, it is known the band edges to be welded together by upsetting on both sides to thicken, partly for the purpose of reducing the amount caused by burning the wall thickness in the vicinity of the weld seam., partly for the purpose, to produce slightly inclined surfaces at the edges. after bending the tape lie parallel to each other on a tube. It is also known in resistance welding of pipes with longitudinal seams or screw seams on both sides of the strip edge joint Pairs of pressure rollers to attack, which are used to supply the welding current. Will finally be Pressure rollers, which are not electrodes, are used by inductive Heating to press the edges brought to welding heat against each other.
Demgemäß wird bei der Erfindung von einer Vorrichtung zum Schweißen aus Band hergestellter Naht-, insbesondere Schraubennahtrohre ausgegangen., durch die die zunächst durch Stauchen nach beiden Seiten verdickten und vor dem Verschweißen beispielsweise induktiv erwärmten Bandkanten mit Hilfe stromloser Druckwalzenpaare in gegenseitiger Anlage haltbar sowie unter Niederdrückung der Anstauchung preßschweißbar sind.Accordingly, in the invention of an apparatus for welding from tape made sutures, in particular screw sutures, assumed., by which were initially thickened by upsetting on both sides and before welding for example inductively heated strip edges with the help of currentless pressure roller pairs durable in mutual contact and pressure-weldable while suppressing the upsetting are.
Der Erfindung liegt die Aufgabe zugrunde, Oxyd-und Gaseinschlüsse, wie sie beim Schweißen regelmäßig entstehen, unschädlich zu machen.The invention is based on the object of oxide and gas inclusions, as they regularly arise during welding, to render them harmless.
Zu diesem Zweck besitzen die Walzen der zu beiden Seiten des Blechkantenstoßes angeordneten, beidseits der Naht sowie innen und außen am Rohr angreifenden Druckwalzenpaare erfindungsgemäß einerseits ein doppelkegelstumpfartiges, d. h. V-förmiges sowie mit seiner Spitze zum Werkstück gerichtetes Profil und greifen andererseits derart schräg am Rohr an, daß sich ihre Profilachsen etwa in der Mitte des Blechkantenstoßes treffen; die Walzen wirken also jeweils mit der Mantelfläche ihres einen Kegels etwa radial zum Rohr auf die Blechoberfläche und ihres anderen Kegels etwa in Axialrichtung des Rohres auf die Seitenfläche der Anstauchung ein. Hierdurch werden die Oxyd- oder Gaseinschlüsse aus dem eigentlichen Blechquerschnitt heraus in die beiderseits vorstehenden Anstauchungen gedrückt, die man später in üblicher Weise entfernt.For this purpose, the rollers have the joint on both sides of the sheet metal edge arranged on both sides of the seam as well as on the inside and outside of the pipe attacking pressure roller pairs according to the invention on the one hand a double truncated cone, d. H. V-shaped as well with its tip to the workpiece directed profile and on the other hand grip in such a way at an angle on the pipe so that their profile axes are approximately in the middle of the sheet metal edge joint meet; the rollers thus each work with the outer surface of their one cone approximately radially to the tube on the sheet metal surface and its other cone approximately in the axial direction of the pipe on the side surface of the upset. As a result, the oxide or gas inclusions from the actual sheet metal cross-section into both sides pressed protruding upsets, which are later removed in the usual way.
In baulicher Hinsicht empfiehlt es sich, die Walzen mit unter etwa 45° der Oberfläche des Rohres geneigten Achsen in parallel zur Rohroberfläche relativ zueinander verstellbaren Führungsstücken drehbar zu lagern.From a structural point of view, it is recommended that the rollers with under about 45 ° of the surface of the pipe inclined axes in parallel to the pipe surface relative to store mutually adjustable guide pieces rotatable.
Die Zeichnung veranschaulicht ein Ausführungsbeispiel in schematischer Darstellung.The drawing illustrates an exemplary embodiment in schematic form Depiction.
Die einander gegenüberstehenden Teile 1 und 2 des zum Rohr gebogenen Blechbandes sind an ihren Kanten durch Stauchen mit Wülsten 3 und 4 versehen. Auf diese Wülste wirken vier Druckwalzen ein, von denen die Walzen 5 und 6 außerhalb des Rohres und die Walzen 7 und 8 innerhalb des Rohres angeordnet sind, während zugleich die Walzen 5 und 8 rechts der Schweißnaht sowie die Walzen 6 und 7 links der Schweißnaht liegen. Diese Walzen haben die Form von zwei mit ihrer größeren Stirnfläche aneinandergesetzten Kegelstümpfen. Ihre strichpunktiert angedeuteten. Drehachsen liegen unter 45° zum Band; ihre gleichfalls strichpunktiert angegebenen Profilachsen, die rechtwinklig zu den Drehachsen liegen, treffen sich sämtlich in der Mitte des Blechkantenstoßes, Die Walzen 5 und 6 sind in Führungsstücken, 9 und 10 und die Walzen 7 und B in Führungsstücken 11 und 12 gelagert. Diese Führungsstücke sind relativ zueinander durch Spindeln 13 und 14 verstellbar, die durch Schnecken 15 und 16 gedreht werden können.The opposing parts 1 and 2 of the bent pipe The sheet metal strip are provided with beads 3 and 4 on their edges by upsetting them. on these beads act on four pressure rollers, of which rollers 5 and 6 are outside of the tube and the rollers 7 and 8 are arranged within the tube, while at the same time, rollers 5 and 8 on the right of the weld seam and rollers 6 and 7 on the left the weld seam. These reels are in the shape of two with their larger one Front face of juxtaposed truncated cones. Your indicated by dash-dotted lines. The axes of rotation are less than 45 ° to the belt; their also indicated by dash-dotted lines Profile axes that are perpendicular to the axes of rotation all meet in the middle of the sheet metal edge joint, the rollers 5 and 6 are in guide pieces, 9 and 10 and the rollers 7 and B mounted in guide pieces 11 and 12. These guide pieces are adjustable relative to each other by spindles 13 and 14, which are screwed 15 and 16 can be rotated.
Jede der vier Walzen 5 bis 8 wirkt mit der Mantelfläche ihres einen Kegelstumpfes radial zum Rohr auf die Blechoberfläche ein, während die Mantelfläche des anderen Kegelstumpfes in Richtung der Rohrachse auf die Seitenfläche einer Anstauchung drückt.Each of the four rollers 5 to 8 acts with the outer surface of its one Truncated cone radially to the pipe on the sheet metal surface, while the jacket surface of the other truncated cone in the direction of the pipe axis on the side surface of an upsetting presses.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH28048A DE1078074B (en) | 1956-09-07 | 1956-09-07 | Device for welding seam tubes, in particular screw seam tubes, made from tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH28048A DE1078074B (en) | 1956-09-07 | 1956-09-07 | Device for welding seam tubes, in particular screw seam tubes, made from tape |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1078074B true DE1078074B (en) | 1960-03-24 |
Family
ID=7150754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH28048A Pending DE1078074B (en) | 1956-09-07 | 1956-09-07 | Device for welding seam tubes, in particular screw seam tubes, made from tape |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1078074B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE110567C (en) * | ||||
AT34089B (en) * | 1906-08-16 | 1908-08-25 | Rudolf Backhaus | Process for the production of longitudinally welded pipes. |
US2013517A (en) * | 1930-12-17 | 1935-09-03 | Direct Current Welding Company | Apparatus for welding |
AT182600B (en) * | 1951-06-27 | 1955-07-11 | Metallurg Tech Et Commerciale | Device for welding pipes by induction heating |
-
1956
- 1956-09-07 DE DEH28048A patent/DE1078074B/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE110567C (en) * | ||||
AT34089B (en) * | 1906-08-16 | 1908-08-25 | Rudolf Backhaus | Process for the production of longitudinally welded pipes. |
US2013517A (en) * | 1930-12-17 | 1935-09-03 | Direct Current Welding Company | Apparatus for welding |
AT182600B (en) * | 1951-06-27 | 1955-07-11 | Metallurg Tech Et Commerciale | Device for welding pipes by induction heating |
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