FR2256786A1 - - Google Patents
Info
- Publication number
- FR2256786A1 FR2256786A1 FR7501188A FR7501188A FR2256786A1 FR 2256786 A1 FR2256786 A1 FR 2256786A1 FR 7501188 A FR7501188 A FR 7501188A FR 7501188 A FR7501188 A FR 7501188A FR 2256786 A1 FR2256786 A1 FR 2256786A1
- Authority
- FR
- France
- 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.)
- Withdrawn
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
- B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
- B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles by means of mandrels
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Forging (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2401345A DE2401345A1 (de) | 1974-01-09 | 1974-01-09 | Zieh-streckverfahren zur herstellung langer rohre und vorrichtung zur durchfuehrung des verfahrens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2256786A1 true FR2256786A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-08-01 |
Family
ID=5904640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7501188A Withdrawn FR2256786A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-01-09 | 1975-01-07 |
Country Status (6)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19816998A1 (de) * | 1998-04-17 | 1999-10-21 | Alcatel Sa | Verfahren zur Herstellung eines optischen Kabels |
| WO2001054839A1 (de) * | 2000-01-28 | 2001-08-02 | Schmittersysco Gmbh | Verfahren und umformwerkzeug zur zylinderrohrherstellung mittels fliesspressen |
| KR102062076B1 (ko) * | 2016-03-11 | 2020-01-03 | 닛폰세이테츠 가부시키가이샤 | 두께가 상이한 강관의 제조 방법 및 두께가 상이한 강관 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR322558A (fr) * | 1902-06-28 | 1903-02-07 | Alvermann Gustav | Procédé de fabrication de tuyaux sans soudure |
| FR1079932A (fr) * | 1953-04-08 | 1954-12-03 | Bonnet Reymond | Procédé pour rétreindre des tubes ou barres, et appareillage pour sa mise en oeuvre |
| US3572080A (en) * | 1968-10-03 | 1971-03-23 | George A Mitchell Co | Production of pointed workpieces |
| US3654794A (en) * | 1969-03-07 | 1972-04-11 | Atomic Energy Commission | Drawbench |
| US3672201A (en) * | 1969-05-19 | 1972-06-27 | Battelle Development Corp | Method and apparatus for shaping tubes |
| US3672200A (en) * | 1969-12-24 | 1972-06-27 | Aikoku Kogyo Kk | Machine tool |
-
1974
- 1974-01-09 DE DE2401345A patent/DE2401345A1/de active Pending
- 1974-12-19 IT IT30755/74A patent/IT1027829B/it active
-
1975
- 1975-01-07 US US05/539,231 patent/US3950978A/en not_active Expired - Lifetime
- 1975-01-07 FR FR7501188A patent/FR2256786A1/fr not_active Withdrawn
- 1975-01-09 SE SE7500225A patent/SE7500225L/xx unknown
- 1975-01-09 JP JP50005258A patent/JPS50101269A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| IT1027829B (it) | 1978-12-20 |
| US3950978A (en) | 1976-04-20 |
| SE7500225L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-07-10 |
| DE2401345A1 (de) | 1975-07-10 |
| JPS50101269A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1975-08-11 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |