GB1439787A - Tube production - Google Patents
Tube productionInfo
- Publication number
- GB1439787A GB1439787A GB4802973A GB4802973A GB1439787A GB 1439787 A GB1439787 A GB 1439787A GB 4802973 A GB4802973 A GB 4802973A GB 4802973 A GB4802973 A GB 4802973A GB 1439787 A GB1439787 A GB 1439787A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blank
- welding
- tube
- oct
- extensions
- 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
- B21C37/083—Supply, or operations combined with supply, of strip material
-
- 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
- B23K9/025—Seam welding; Backing means; Inserts for rectilinear seams
- B23K9/0253—Seam welding; Backing means; Inserts for rectilinear seams for the longitudinal seam of tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
1439787 Making tubes; welding by fusion MANNESMANNROHREN - WERKE AG 15 Oct 1973 [20 Oct 1972] 48029/73 Headings B3A and B3R A blank for a longitudinally seamed welded tube is provided with a recess 15 at each end so that substantially identical extensions 7, 8 of the blank are provided which are cut-off when the blank is bent into a tube. The extensions 7, 8 provide areas where the welding of the blank can be started and finished and wherein the weld may be incomplete or cratered. The blank is initially back welded together and then fully welded internally and/or externally, e.g. by arc welding.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722252306 DE2252306A1 (en) | 1972-10-20 | 1972-10-20 | PROCESS FOR PRODUCING A LONGITUDINAL SEAM-WELDED PIPE |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1439787A true GB1439787A (en) | 1976-06-16 |
Family
ID=5860026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4802973A Expired GB1439787A (en) | 1972-10-20 | 1973-10-15 | Tube production |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS4987560A (en) |
CA (1) | CA988754A (en) |
DE (1) | DE2252306A1 (en) |
FR (1) | FR2203684B1 (en) |
GB (1) | GB1439787A (en) |
IT (1) | IT995788B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4764657A (en) * | 1986-03-31 | 1988-08-16 | Sumitomo Metal Industries, Ltd. | Automatic tab plate welding apparatus |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2708364C3 (en) * | 1977-02-23 | 1981-07-09 | Mannesmann AG, 4000 Düsseldorf | Procedures for Avoiding Final Defects |
JP2616691B2 (en) * | 1994-03-14 | 1997-06-04 | トヨタ自動車株式会社 | Manufacturing method of collective blank for press molding and collective blank |
FR3136362A1 (en) | 2022-06-14 | 2023-12-15 | Institut Mines Telecom | Instrumented scleral lens and associated device, embedded in the lens or not, for measuring the pupil diameter of an eye. |
-
1972
- 1972-10-20 DE DE19722252306 patent/DE2252306A1/en active Pending
-
1973
- 1973-10-11 IT IT3001073A patent/IT995788B/en active
- 1973-10-15 GB GB4802973A patent/GB1439787A/en not_active Expired
- 1973-10-19 FR FR7337399A patent/FR2203684B1/fr not_active Expired
- 1973-10-19 JP JP11843273A patent/JPS4987560A/ja active Pending
- 1973-10-19 CA CA183,700A patent/CA988754A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4764657A (en) * | 1986-03-31 | 1988-08-16 | Sumitomo Metal Industries, Ltd. | Automatic tab plate welding apparatus |
Also Published As
Publication number | Publication date |
---|---|
FR2203684A1 (en) | 1974-05-17 |
IT995788B (en) | 1975-11-20 |
FR2203684B1 (en) | 1977-09-09 |
DE2252306A1 (en) | 1974-05-02 |
JPS4987560A (en) | 1974-08-21 |
CA988754A (en) | 1976-05-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |