DD123276A5 - - Google Patents
Info
- Publication number
- DD123276A5 DD123276A5 DD19160676A DD19160676A DD123276A5 DD 123276 A5 DD123276 A5 DD 123276A5 DD 19160676 A DD19160676 A DD 19160676A DD 19160676 A DD19160676 A DD 19160676A DD 123276 A5 DD123276 A5 DD 123276A5
- Authority
- DD
- German Democratic Republic
Links
Classifications
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/032—Seam welding; Backing means; Inserts for three-dimensional seams
- B23K9/0325—Seam welding; Backing means; Inserts for three-dimensional seams helicoidal seams
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752509875 DE2509875C3 (de) | 1975-03-04 | 1975-03-04 | Verfahren und Anordnung zum Mehrdrahtinnenschweißen von Spiralrohren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD123276A5 true DD123276A5 (it) | 1976-12-12 |
Family
ID=5940672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD19160676A DD123276A5 (it) | 1975-03-04 | 1976-02-27 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS51112464A (it) |
| BE (1) | BE839130A (it) |
| CA (1) | CA1053036A (it) |
| DD (1) | DD123276A5 (it) |
| DE (1) | DE2509875C3 (it) |
| IT (1) | IT1062153B (it) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5268728B2 (ja) * | 2009-03-24 | 2013-08-21 | 日新製鋼株式会社 | スパイラル鋼管の製造方法 |
-
1975
- 1975-03-04 DE DE19752509875 patent/DE2509875C3/de not_active Expired
-
1976
- 1976-02-27 DD DD19160676A patent/DD123276A5/xx unknown
- 1976-03-03 CA CA247,061A patent/CA1053036A/en not_active Expired
- 1976-03-03 BE BE164803A patent/BE839130A/xx not_active IP Right Cessation
- 1976-03-03 JP JP2302976A patent/JPS51112464A/ja active Pending
- 1976-03-03 IT IT6751076A patent/IT1062153B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| DE2509875B2 (de) | 1976-12-23 |
| IT1062153B (it) | 1983-06-30 |
| DE2509875A1 (de) | 1976-09-16 |
| CA1053036A (en) | 1979-04-24 |
| DE2509875C3 (de) | 1980-06-26 |
| BE839130A (fr) | 1976-07-01 |
| JPS51112464A (en) | 1976-10-04 |