JPS57118874A - Method and device for high frequency welding - Google Patents
Method and device for high frequency weldingInfo
- Publication number
- JPS57118874A JPS57118874A JP412081A JP412081A JPS57118874A JP S57118874 A JPS57118874 A JP S57118874A JP 412081 A JP412081 A JP 412081A JP 412081 A JP412081 A JP 412081A JP S57118874 A JPS57118874 A JP S57118874A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- current
- strip
- high frequency
- looped
- 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.)
- Pending
Links
Classifications
-
- 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
- B23K13/04—Welding by high-frequency current heating by conduction heating
- B23K13/043—Seam welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Induction Heating (AREA)
Abstract
PURPOSE:To generate proximity effect between weldments and to heat their weld zones efficiently by installing a conductor in a looped electric current circuit of welding current in high frequency welding of a metallic strip spirally to the surface of a metallic pipe. CONSTITUTION:While a metallic pipe 1 is rotated and moved in an axial direction, a metalic strip 2 is fed to the surface of the pipe 1, and high frequency electric current is supplied through joints 5a, 5b to conduct the current to the pipe 1 and the strip 2 with the contactors 6a, 6b at the leading ends thereof. The strip 2 is welded spirally to the surface of the pipe 1 at a weld point 4 while the strip is pressed with a roller 3. In this case, a conductor 8 is provided in the space 7 on the inner side of the looped current path formed by a part of the surface of the pipe 1 and the joints 5a, 5b. Induction current is flowed to the conductor 8 by the high frequency current flowing in the looped current circuit and proximity effect is generated between the high frequency currents flowing in the looped current circut, whereby the currents are concentrated at the parts 1', 2' opposite to the condutor 8 to heat the strip and the pipe powerfully and superior welding effect is generated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP412081A JPS57118874A (en) | 1981-01-14 | 1981-01-14 | Method and device for high frequency welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP412081A JPS57118874A (en) | 1981-01-14 | 1981-01-14 | Method and device for high frequency welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57118874A true JPS57118874A (en) | 1982-07-23 |
Family
ID=11575919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP412081A Pending JPS57118874A (en) | 1981-01-14 | 1981-01-14 | Method and device for high frequency welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57118874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253185A (en) * | 1985-05-02 | 1986-11-11 | Showa Alum Corp | Production of tube-on-sheet |
-
1981
- 1981-01-14 JP JP412081A patent/JPS57118874A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253185A (en) * | 1985-05-02 | 1986-11-11 | Showa Alum Corp | Production of tube-on-sheet |
| JPH0239352B2 (en) * | 1985-05-02 | 1990-09-05 | Showa Aluminium Co Ltd |
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