GB1256772A - Improvements in or relating to a process of manufacturing tubes - Google Patents
Improvements in or relating to a process of manufacturing tubesInfo
- Publication number
- GB1256772A GB1256772A GB1256772DA GB1256772A GB 1256772 A GB1256772 A GB 1256772A GB 1256772D A GB1256772D A GB 1256772DA GB 1256772 A GB1256772 A GB 1256772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- edges
- strip
- tube
- tubes
- vallourec
- Prior art date
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
- B21C37/08—Making tubes with welded or soldered seams
-
- 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
- B23K5/00—Gas flame welding
- B23K5/02—Seam welding
- B23K5/06—Welding longitudinal seams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Articles (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
1,256,772. Making tubes; skelping; welding by pressure. VALLOUREC (USINES A TUBES DE LORRAINE-ESCAUT ET VALLOUREC REUNIES) ELPHIAC S.A. 14 Aug., 1969 [16 Aug., 1968], No. 40636/69. Headings B3A, B3E and B3R. In a method and apparatus for producing a welded tube from metal strip the strip is preheated in a furnace, formed into a tube with the edges of the strip adjacent each other with a small gap between them, the edges are superheated, preferably by electric induction heating, a gas is blown on to the edges and the tube welded by bringing the edges together by means of forming rollers. The gas may be oxygen, air or a mixture thereof, or steam. The heating in the furnace is preferably to 900‹ to 1300‹ C. with superheating of from 50‹ to 450‹ C. in the case of steel strip.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR163292 | 1968-08-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1256772A true GB1256772A (en) | 1971-12-15 |
Family
ID=8653824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1256772D Expired GB1256772A (en) | 1968-08-16 | 1969-08-14 | Improvements in or relating to a process of manufacturing tubes |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT302773B (en) |
BE (1) | BE737390A (en) |
CA (1) | CA886856A (en) |
FR (1) | FR1590672A (en) |
GB (1) | GB1256772A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2638476C1 (en) * | 2016-11-08 | 2017-12-13 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Method for manufacturing welded straight-seam pipes of titanium alloys |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3032222C2 (en) * | 1979-09-28 | 1987-08-20 | Sumitomo Kinzoku Kogyo K.K., Osaka | Device for the continuous production of butt-welded pipes |
-
0
- CA CA886856A patent/CA886856A/en not_active Expired
-
1968
- 1968-08-16 FR FR163292A patent/FR1590672A/en not_active Expired
-
1969
- 1969-08-12 AT AT775669A patent/AT302773B/en not_active IP Right Cessation
- 1969-08-12 BE BE737390A patent/BE737390A/en unknown
- 1969-08-14 GB GB1256772D patent/GB1256772A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2638476C1 (en) * | 2016-11-08 | 2017-12-13 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Method for manufacturing welded straight-seam pipes of titanium alloys |
Also Published As
Publication number | Publication date |
---|---|
FR1590672A (en) | 1970-04-20 |
DE1941461B2 (en) | 1972-07-20 |
AT302773B (en) | 1972-10-25 |
DE1941461A1 (en) | 1970-02-19 |
CA886856A (en) | 1971-11-30 |
BE737390A (en) | 1970-01-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |