BE540871A - - Google Patents
Info
- Publication number
- BE540871A BE540871A BE540871DA BE540871A BE 540871 A BE540871 A BE 540871A BE 540871D A BE540871D A BE 540871DA BE 540871 A BE540871 A BE 540871A
- Authority
- BE
- Belgium
- Prior art keywords
- mandrel
- tube
- nut
- die
- repelling
- Prior art date
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
- B21C37/12—Making tubes or metal hoses with helically arranged seams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE540871A true BE540871A (pm) |
Family
ID=170086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE540871D BE540871A (pm) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE540871A (pm) |
-
0
- BE BE540871D patent/BE540871A/fr unknown
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