GB809129A - Apparatus for fusion butt welding the adjacent longitudinal edges of tube lengths - Google Patents
Apparatus for fusion butt welding the adjacent longitudinal edges of tube lengthsInfo
- Publication number
- GB809129A GB809129A GB30505/55A GB3050555A GB809129A GB 809129 A GB809129 A GB 809129A GB 30505/55 A GB30505/55 A GB 30505/55A GB 3050555 A GB3050555 A GB 3050555A GB 809129 A GB809129 A GB 809129A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rollers
- tube
- welding
- length
- seam
- 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
- B21C37/0822—Guiding or aligning the edges of the bent sheet
-
- 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
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
- B23K13/02—Seam welding
- B23K13/025—Seam welding for tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
809,129. Making tubes; welding by fusion; angular bending. LINDE'S EISMASCHINEN A.G. FUR. Oct. 25, 1955 [Nov. 25, 1954; May 18, 1955], No. 30505/55. Classes 83 (2) and 83 (4). In a machine for fusion welding the longitudinal edges of pre-bent tubes lengths comprising a feed-bed constituted by a plurality of coaxial and at least partially annular supporting elements, a plurality of feed rollers for moving each length and pressure rollers for contacting each length and welding means for welding the longitudinal edges, the pressure rollers are provided with mountings arranged circumferentially on the elements and directed inwards and each pressure-roller mounting is constructed to permit free rotational movement of its roller about an axis during movement of each length whilst maintaining the direction of the axis normal to the direction of motion of the portion of the length contacted by the roller so that the roller contacts the length with only rolling friction. In an embodiment a pre-bent tube 1, Figs. 1 and 2, is fed by driven rubber-coated rollers 6 towards the welding-point 3 through support elements 2 each having a series of pressure rollers 10 to elastically close the open slit in the tube. Each pressure roller comprises a ball supported by smaller balls in a partspherical recess in the end of a plunger spring pressed towards the tube. A support bar mounts idler rollers 7 and is carried by a member 8 projecting through the slit in the tube. A coded copper saddle may be carried by the member 8 to engage the seam. The pressure rollers may have castor mountings. In a further embodiment tube lengths which have been welded internally in an apparatus similar to that of the first embodiment are fed by rollers 6a, 6b, Fig. 4, through annular or nearly annular elements 2 similar to those of the first embodiment to a weld head arranged over the point 3. The axes of the rollers 6a are swingable independently of those of rollers 6b and the speeds of the rollers are relatively adjustable to allow the rotation of a tube length until its seam is in the correct position. Two abutting tube lengths may be welded if the axes of the rollers 6a, 6b are arranged parallel to the tube axes. The pressure rollers may be gas or fluid pressed. To weld the internal seam of a tube the welding head is fixed to a support-bar within the tube which latter travels with its seam downwards and a cooled copper saddle is pressed against the outside of the seam.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE809129X | 1954-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB809129A true GB809129A (en) | 1959-02-18 |
Family
ID=6723234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30505/55A Expired GB809129A (en) | 1954-11-25 | 1955-10-25 | Apparatus for fusion butt welding the adjacent longitudinal edges of tube lengths |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB809129A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1286493B (en) * | 1962-12-03 | 1969-01-09 | Abbey Etna Machine Co | Tube rolling mill |
FR2447771A1 (en) * | 1979-02-05 | 1980-08-29 | Benteler Werke Ag | WELDING DEVICE FOR CONICAL MATS |
ITBO20100464A1 (en) * | 2010-07-22 | 2012-01-23 | Valmex S P A | PROCEDURE FOR THE PRODUCTION OF SHAPED TUBES FOR HEAT EXCHANGER AND SHAPED TUBES SO PRODUCTS |
ITBO20100463A1 (en) * | 2010-07-22 | 2012-01-23 | Valmex S P A | PROCESS OF PRODUCTION OF PIPES FOR HEAT EXCHANGER, AND SO-PRODUCED TUBES |
-
1955
- 1955-10-25 GB GB30505/55A patent/GB809129A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1286493B (en) * | 1962-12-03 | 1969-01-09 | Abbey Etna Machine Co | Tube rolling mill |
FR2447771A1 (en) * | 1979-02-05 | 1980-08-29 | Benteler Werke Ag | WELDING DEVICE FOR CONICAL MATS |
ITBO20100464A1 (en) * | 2010-07-22 | 2012-01-23 | Valmex S P A | PROCEDURE FOR THE PRODUCTION OF SHAPED TUBES FOR HEAT EXCHANGER AND SHAPED TUBES SO PRODUCTS |
ITBO20100463A1 (en) * | 2010-07-22 | 2012-01-23 | Valmex S P A | PROCESS OF PRODUCTION OF PIPES FOR HEAT EXCHANGER, AND SO-PRODUCED TUBES |
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