GR66805B - - Google Patents
Info
- Publication number
- GR66805B GR66805B GR64732A GR810164732A GR66805B GR 66805 B GR66805 B GR 66805B GR 64732 A GR64732 A GR 64732A GR 810164732 A GR810164732 A GR 810164732A GR 66805 B GR66805 B GR 66805B
- Authority
- GR
- Greece
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
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
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- 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
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes or tubes with decorated walls
- B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes or tubes with decorated walls with helical guides
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0009—Apparatus or processes specially adapted for manufacturing conductors or cables for forming corrugations on conductors or cables
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803029448 DE3029448A1 (de) | 1980-08-02 | 1980-08-02 | Vorrichtung zum wellen von rohren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GR66805B true GR66805B (en:Method) | 1981-04-30 |
Family
ID=6108806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GR64732A GR66805B (en:Method) | 1980-08-02 | 1981-04-20 |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE3029448A1 (en:Method) |
| GR (1) | GR66805B (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19701970A1 (de) * | 1997-01-22 | 1998-07-23 | Ralph Peter Dr Ing Hegler | Verfahren und Vorrichtung zur Herstellung eines Hüll-Wellrohres mit in diesem befindlicher Leitung |
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1980
- 1980-08-02 DE DE19803029448 patent/DE3029448A1/de not_active Withdrawn
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1981
- 1981-04-20 GR GR64732A patent/GR66805B/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3029448A1 (de) | 1982-03-04 |