GB344161A - Improvements relating to the manufacture of welded tubes - Google Patents
Improvements relating to the manufacture of welded tubesInfo
- Publication number
- GB344161A GB344161A GB322330A GB322330A GB344161A GB 344161 A GB344161 A GB 344161A GB 322330 A GB322330 A GB 322330A GB 322330 A GB322330 A GB 322330A GB 344161 A GB344161 A GB 344161A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- rolls
- flame
- jacket
- burner
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating With Molten Metal (AREA)
Abstract
344,161. Making tubes. KOZICZ, J., 93, Margaretenstrasse, Vienna. Jan. 30, 1930, No. 3223. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 3, 1930.] [Classes 83 (ii) and 83 (iv).] Uniting by fusion; angular bending and straightening ; rolling-mandrels and carriages and supports. -The longitudinal seams of circular or angular, plated or other metal tubes are continuously welded by a flame, which enters a jacket surrounding the tubes so as to bathe the inside and outside thereof and thus preheat the tube. A preheating flame of lower temperature may enter the jacket opposite the welding flame to cause the edges of the tube to converge in approaching the welding point. The tube is formed from metal strips by toll-bending and is passed from the final bending rolls 1 through sizing rolls 3 .. 6, between which it passes through guide rolls 10, 12 and a slot guide roll 11 and through a jacket 22, 23, Fig. 6, into which the flames from a welding burner 17 and preheating burner 19 project. The sizing rolls are of successively smaller diameter and are driven by successively smaller pinions so as to increase the peripheral speed in succession and thus to propel the tube forward. The tube then passes through straightening rolls 13 .. 16 and through a pair of ejecting rolls 18. A series of cylindrical or barrelshaped mandrels 7 are arranged in the pass of the sizing rolls and may be adjustably mounted on a screw rod, carried by a lug 9 projecting through the slot in the tube. The first mandrel is longitudinally grooved as shown in Fig. 3. The preheating jacket is formed in two longitudinally and transversely adjustable parts 22, 23, provided with tapered air holes 27 arranged at different heights and inclined towards the axis of the tube in the direction of travel. The flames of the burners project into the jacket through slots 25, 26. The spread of the flame from the burner 17 is restricted in the interior of the tube by the end of the first mandrel. The burner 17 is mounted in a support so as to be adjustable vertically, transversely and longitudinally, and is also pivoted and arranged to bear against a stop 21 in its operative position. Specification 264,534, [Class 83 (ii), Metal articles &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that the edges of the tube lie close against the slot 25 and the flame comes in contact only with the seam. It is further stated that the welding may be performed electrically. This subject-matter does not appear in the Specification as accepted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB322330A GB344161A (en) | 1930-01-30 | 1930-01-30 | Improvements relating to the manufacture of welded tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB322330A GB344161A (en) | 1930-01-30 | 1930-01-30 | Improvements relating to the manufacture of welded tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB344161A true GB344161A (en) | 1931-03-05 |
Family
ID=9754276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB322330A Expired GB344161A (en) | 1930-01-30 | 1930-01-30 | Improvements relating to the manufacture of welded tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB344161A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116141024A (en) * | 2023-04-21 | 2023-05-23 | 太原科技大学 | Medium longitudinal submerged arc welded pipe production equipment and technology |
-
1930
- 1930-01-30 GB GB322330A patent/GB344161A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116141024A (en) * | 2023-04-21 | 2023-05-23 | 太原科技大学 | Medium longitudinal submerged arc welded pipe production equipment and technology |
CN116141024B (en) * | 2023-04-21 | 2023-07-04 | 太原科技大学 | Medium longitudinal submerged arc welded pipe production equipment and technology |
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