EP0876228A2 - Verfahren und vorrichtung zur herstellung von rohren nach dem uoe-verfahren - Google Patents
Verfahren und vorrichtung zur herstellung von rohren nach dem uoe-verfahrenInfo
- Publication number
- EP0876228A2 EP0876228A2 EP97908120A EP97908120A EP0876228A2 EP 0876228 A2 EP0876228 A2 EP 0876228A2 EP 97908120 A EP97908120 A EP 97908120A EP 97908120 A EP97908120 A EP 97908120A EP 0876228 A2 EP0876228 A2 EP 0876228A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- tube
- expander
- pipes
- cold
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
- B21C37/30—Finishing tubes, e.g. sizing, burnishing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles 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
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
- B21C37/0811—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off removing or treating the weld bead
Definitions
- the invention relates to a method for producing tubes, in particular large tubes according to the UOE method according to the preamble of the main claim.
- UOE The process referred to in the technical field as UOE is the most frequently used process for the production of longitudinally welded large pipes (Stradtmann, Stahlrohr-Handbuch 10th edition, Vulkan-Verlag, Essen 1986, pages 164 to 167).
- a U-shaped slotted tube is formed from a flat sheet on a bending press (Lj press). This is followed by rounding to a tube on a further press with closing dies (Q press). Since in many cases the pipes do not yet meet the requirements for diameter and roundness after internal and external welding, they are calibrated by cold expansion (expansion).
- the welded tube is always curved before the expansion so that the center of curvature lies above the tube or expander axis.
- the tube must have already carried out several expander steps before it can be gripped by the bending device. Accordingly, the straightening process never grips the end portions of the pipes.
- the object of the invention is to provide a process for the production of pipes, in particular large pipes according to the UOE process, with which even for pipes with a small diameter and thick wall over the entire length, the curvature after the longitudinal seam welding is compensated so far that the oddness within the tolerance specified by the customer.
- the elastic tension is specified as the default setting, with the amounts gradually decreasing.
- the degree of pipe curvature which is determined after longitudinal seam welding, is used as the measure for the presetting. In order to simplify this determination, it is assumed that the crookedness within a production lot is approximately the same. This means that at the same
- Pipe dimensions diameter, wall thickness, the same material and the same welding parameters, the first pipe of the production lot is measured and this curvature is used as a basis for all pipes of the production lot.
- FIG. 1 to 3 schematically the essential sequences of steps for the inventive method.
- FIG. 1 shows a tube 1 that has become crooked after longitudinal seam welding, the crookedness being greatly exaggerated for reasons of better visibility. Likewise, the length of the tube 1 is significantly too short in relation to the diameter.
- a mechanical expander shows the expander head 2, which is attached to an expander rod 3, in a simplified manner on the left edge of the picture.
- the hatched area 4 of the left tube end is intended to symbolize the length of the expander step.
- the expander head 2 is shown offset to the left, even though it is in the closed, ie, unspread, state inside the hatched tube region 4, and the clamping device is arranged only a short distance therefrom.
- the clamping device consists of two rollers 5, 6 arranged opposite one another.
- the arrows 7, 8 indicate the direction of the clamping force.
- the pliers carriage (not shown here) is positioned on the right free pipe end 9.
- FIG. 2 shows the phase of prestressing the pipe 1.
- the pipe 1 is lowered against the curvature by means of the pliers not shown here, symbolized here by the downward-pointing arrow 12 at the pipe end.
- the pipe end is turned around the transverse axis. The additional force applied and the additional moment act in the area of the clamping and lead to one there
- Figure 3 shows the phase of expanding (spreading the expander head 2) and simultaneous straightening. It is expected that the rotationally symmetrical distribution of the spreading force (not shown here) will be superimposed by an additional pair of forces, the right force arrow 15 in the shaded area 4 becoming larger than the left force arrow 16. The straightening effect is a barely noticeable kink on the right edge of the hatched area 4 focus.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Forging (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19602920A DE19602920C2 (de) | 1996-01-22 | 1996-01-22 | Verfahren und Vorrichtung zum Kalibrieren und Richten von nach dem UOE-Verfahren hergestellten Rohren |
| DE19602920 | 1996-01-22 | ||
| PCT/DE1997/000114 WO1997027013A2 (de) | 1996-01-22 | 1997-01-20 | Verfahren und vorrichtung zur herstellung von rohren nach dem uoe-verfahren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0876228A2 true EP0876228A2 (de) | 1998-11-11 |
| EP0876228B1 EP0876228B1 (de) | 2003-05-07 |
Family
ID=7783844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97908120A Expired - Lifetime EP0876228B1 (de) | 1996-01-22 | 1997-01-20 | Verfahren und vorrichtung zur herstellung von rohren nach dem uoe-verfahren |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US6253596B1 (de) |
| EP (1) | EP0876228B1 (de) |
| JP (1) | JP3917660B2 (de) |
| CA (1) | CA2243702C (de) |
| DE (2) | DE19602920C2 (de) |
| WO (1) | WO1997027013A2 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19602920C2 (de) * | 1996-01-22 | 1998-01-29 | Mannesmann Ag | Verfahren und Vorrichtung zum Kalibrieren und Richten von nach dem UOE-Verfahren hergestellten Rohren |
| RU2258574C1 (ru) * | 2003-12-22 | 2005-08-20 | Открытое акционерное общество "Электростальский завод тяжелого машиностроения" (ОАО "ЭЗТМ) | Способ экспандирования труб большого диаметра и устройство для его осуществления |
| DE102004022509A1 (de) * | 2004-01-07 | 2005-08-25 | Stapla Ultraschall-Technik Gmbh | Verfahren zum Abquetschen und Abdichten eines Rohres |
| DE102008027807B4 (de) * | 2008-06-06 | 2011-05-12 | Eisenbau Krämer mbH | Verfahren zum Herstellen eines großen Stahlrohres |
| DE102014006475B4 (de) | 2014-04-29 | 2016-09-15 | Europipe Gmbh | Verfahren zur Durchführung von Werkstoffprüfungen für mit die mechanischen Eigenschaften beeinflussender Wärme zu behandelnde Rohre aus Stahl |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2234863A (en) * | 1937-05-28 | 1941-03-11 | Heetkamp Heinrich | Process and apparatus for expanding tubes |
| US2780271A (en) * | 1951-09-27 | 1957-02-05 | Smith Corp A O | Apparatus for mechanically expanding large diameter pipe |
| US3030901A (en) * | 1955-08-30 | 1962-04-24 | Taylor Wilson Mfg Company | Means and method for expanding and testing pipe |
| US2919741A (en) * | 1955-09-22 | 1960-01-05 | Blaw Knox Co | Cold pipe expanding apparatus |
| JPS5431445B2 (de) * | 1974-02-04 | 1979-10-06 | ||
| US3981172A (en) * | 1975-09-22 | 1976-09-21 | Grotnes Machine Works, Inc. | Method and apparatus for expanding spirally welded pipe |
| CA1148796A (en) * | 1976-04-30 | 1983-06-28 | Paul H.H. Hookings | Method and apparatus for expanding spiralweld pipe |
| JPS6044050B2 (ja) * | 1976-09-10 | 1985-10-01 | 新日本製鐵株式会社 | 長尺郭状体の多段成形法 |
| JPS54138858A (en) * | 1978-04-21 | 1979-10-27 | Hitachi Ltd | Controlling method for seam position |
| JPS5570428A (en) * | 1978-11-21 | 1980-05-27 | Sumitomo Metal Ind Ltd | Expanding method for steel pipe |
| US4430872A (en) * | 1980-02-14 | 1984-02-14 | Nippon Kokan Kabushiki Kaisha | Method and apparatus for plate edge preparation for UOE pipe making process |
| JPS59197321A (ja) * | 1983-04-21 | 1984-11-08 | Kawasaki Steel Corp | Uoeパイプの拡管装置 |
| JPS59232621A (ja) * | 1983-06-14 | 1984-12-27 | Nippon Kokan Kk <Nkk> | メカニカルエキスパンダにおける縦曲り制御方法 |
| JPS6021131A (ja) * | 1983-07-15 | 1985-02-02 | Nippon Kokan Kk <Nkk> | メカニカルエキスパンダにおける曲り制御方法 |
| JPS61147930A (ja) * | 1984-12-19 | 1986-07-05 | Sumitomo Metal Ind Ltd | 鋼管の整形拡管方法 |
| JPS632517A (ja) * | 1986-06-20 | 1988-01-07 | Sumitomo Metal Ind Ltd | Uoe管の矯正方法 |
| JPH0394936A (ja) * | 1989-09-06 | 1991-04-19 | Nkk Corp | Uoe鋼管の拡管方法 |
| JPH05317993A (ja) * | 1992-05-22 | 1993-12-03 | Nkk Corp | Uoe鋼管の拡管方法 |
| JPH05317994A (ja) * | 1992-05-22 | 1993-12-03 | Nkk Corp | Uoe鋼管の拡管方法 |
| DE19522790C2 (de) * | 1995-06-14 | 1998-10-15 | Mannesmann Ag | Verfahren zur Herstellung von Rohren nach dem UOE-Verfahren |
| DE19602920C2 (de) * | 1996-01-22 | 1998-01-29 | Mannesmann Ag | Verfahren und Vorrichtung zum Kalibrieren und Richten von nach dem UOE-Verfahren hergestellten Rohren |
| US6260403B1 (en) * | 1998-05-18 | 2001-07-17 | Scott E. Johnston | Method and apparatus for arching large diameter pipes |
-
1996
- 1996-01-22 DE DE19602920A patent/DE19602920C2/de not_active Expired - Fee Related
-
1997
- 1997-01-20 JP JP52642797A patent/JP3917660B2/ja not_active Expired - Fee Related
- 1997-01-20 WO PCT/DE1997/000114 patent/WO1997027013A2/de not_active Ceased
- 1997-01-20 CA CA002243702A patent/CA2243702C/en not_active Expired - Fee Related
- 1997-01-20 EP EP97908120A patent/EP0876228B1/de not_active Expired - Lifetime
- 1997-01-20 US US09/117,078 patent/US6253596B1/en not_active Expired - Fee Related
- 1997-01-20 DE DE59710048T patent/DE59710048D1/de not_active Expired - Lifetime
-
2001
- 2001-04-03 US US09/825,271 patent/US6427513B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9727013A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20010011470A1 (en) | 2001-08-09 |
| JP2000503902A (ja) | 2000-04-04 |
| US6427513B2 (en) | 2002-08-06 |
| DE19602920A1 (de) | 1997-07-24 |
| JP3917660B2 (ja) | 2007-05-23 |
| EP0876228B1 (de) | 2003-05-07 |
| WO1997027013A3 (de) | 1997-10-23 |
| CA2243702A1 (en) | 1997-07-31 |
| DE19602920C2 (de) | 1998-01-29 |
| WO1997027013A2 (de) | 1997-07-31 |
| US6253596B1 (en) | 2001-07-03 |
| DE59710048D1 (de) | 2003-06-12 |
| CA2243702C (en) | 2005-08-02 |
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