ATE484347T1 - BENDING PROCESS FOR CONICAL TUBES - Google Patents
BENDING PROCESS FOR CONICAL TUBESInfo
- Publication number
- ATE484347T1 ATE484347T1 AT08011525T AT08011525T ATE484347T1 AT E484347 T1 ATE484347 T1 AT E484347T1 AT 08011525 T AT08011525 T AT 08011525T AT 08011525 T AT08011525 T AT 08011525T AT E484347 T1 ATE484347 T1 AT E484347T1
- Authority
- AT
- Austria
- Prior art keywords
- sleeve
- pipes
- bending process
- conical tubes
- sections
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
Abstract
The method involves moving a bendable sleeve (3) with a constant outer dimension (4) and an inner dimension corresponding to tapering of pipes (1), on the pipes before bending. The pipes together with the moved sleeve are subjected to a bending process. The sleeve is made of plastic i.e. nylon, from sleeve sections (5). The sleeve sections are individually moved on the pipes, and the sleeve sections are connected with each other by a plug connection before the bending process. The pipes with the sleeve are rotated at a longitudinal axis during the bending process.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08011525A EP2138248B1 (en) | 2008-06-25 | 2008-06-25 | Bending method for cone-shaped pipes |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE484347T1 true ATE484347T1 (en) | 2010-10-15 |
Family
ID=40558843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT08011525T ATE484347T1 (en) | 2008-06-25 | 2008-06-25 | BENDING PROCESS FOR CONICAL TUBES |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2138248B1 (en) |
AT (1) | ATE484347T1 (en) |
DE (1) | DE502008001532D1 (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1263459B (en) | 1961-04-28 | 1968-03-14 | Stahlform Berlin Ges Mit Besch | Device for bending pipes, in particular conical lighting whip masts |
JPS5927661B2 (en) * | 1979-04-11 | 1984-07-07 | 三恵技研工業株式会社 | Bending method for tapered pipe |
JP3507369B2 (en) * | 1999-08-10 | 2004-03-15 | 株式会社太洋 | Bending equipment for tapered pipes |
DE19956796A1 (en) | 1999-11-25 | 2001-06-13 | Palima W Ludwig & Co | Bending device for 2- and 3-dimensional profile bending |
DE10119030A1 (en) | 2000-04-18 | 2002-01-03 | Palima W Ludwig & Co | Bending device for bending tubes in two and/or three dimensions has bending rollers in plane perpendicular to tube input axis |
DE10326107A1 (en) * | 2003-06-06 | 2005-01-05 | Thyssenkrupp Stahl Ag | Bending device for thin-walled pipes of metal, in particular steel |
-
2008
- 2008-06-25 EP EP08011525A patent/EP2138248B1/en not_active Not-in-force
- 2008-06-25 DE DE502008001532T patent/DE502008001532D1/en active Active
- 2008-06-25 AT AT08011525T patent/ATE484347T1/en active
Also Published As
Publication number | Publication date |
---|---|
DE502008001532D1 (en) | 2010-11-25 |
EP2138248A1 (en) | 2009-12-30 |
EP2138248B1 (en) | 2010-10-13 |
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