JPS55109582A - Heat input control method in high-frequency electric welded tube welding - Google Patents
Heat input control method in high-frequency electric welded tube weldingInfo
- Publication number
- JPS55109582A JPS55109582A JP1755379A JP1755379A JPS55109582A JP S55109582 A JPS55109582 A JP S55109582A JP 1755379 A JP1755379 A JP 1755379A JP 1755379 A JP1755379 A JP 1755379A JP S55109582 A JPS55109582 A JP S55109582A
- Authority
- JP
- Japan
- Prior art keywords
- current
- voltage
- welding
- weld zone
- heat input
- 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.)
- Granted
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
- General Induction Heating (AREA)
Abstract
PURPOSE: To prevent the occurrence of the unevenness of weld zone seam in the captioned welding by detecting the state containing weld zone current pulsations, takinh this detected curreitn as a heat input control quantity and controlling the weld zone current constant.
CONSTITUTION: The supply of high-frequency current to the work coil 10 installed to the front stage part of squeeze rollers is accomplished by the constitution of as AC control part 11 which converts AC to voltage-controlled DC, a high-voltage DC part 12 which smoothes this DC, an oscillation part 13 which self-oscillates with the high- voltage DC as a powder source and a resonance circuit part 14 which takes the resonance matching of the high-voltage AC current of the oscillation part 13 and the coil 10. Namely, function generators 15W18 generate the correction functions corresponding to the deviations between the set values and detection values at plate thickness t, feed speed v, current i based on welding load changes and welding temperature θ, thereby correcting the high-frequency voltage e and making the welding current i constant.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1755379A JPS55109582A (en) | 1979-02-16 | 1979-02-16 | Heat input control method in high-frequency electric welded tube welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1755379A JPS55109582A (en) | 1979-02-16 | 1979-02-16 | Heat input control method in high-frequency electric welded tube welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55109582A true JPS55109582A (en) | 1980-08-23 |
| JPH029919B2 JPH029919B2 (en) | 1990-03-05 |
Family
ID=11947096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1755379A Granted JPS55109582A (en) | 1979-02-16 | 1979-02-16 | Heat input control method in high-frequency electric welded tube welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55109582A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215452A (en) * | 1975-07-26 | 1977-02-05 | Meidensha Electric Mfg Co Ltd | Method of controlling heat input in high frequency electric seam welding |
| JPS5269842A (en) * | 1975-12-09 | 1977-06-10 | Nippon Steel Corp | Automatic welding control method in welding seam welded steel pipe |
| JPS5411917U (en) * | 1977-06-28 | 1979-01-25 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5411917B2 (en) * | 1973-06-02 | 1979-05-18 |
-
1979
- 1979-02-16 JP JP1755379A patent/JPS55109582A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5215452A (en) * | 1975-07-26 | 1977-02-05 | Meidensha Electric Mfg Co Ltd | Method of controlling heat input in high frequency electric seam welding |
| JPS5269842A (en) * | 1975-12-09 | 1977-06-10 | Nippon Steel Corp | Automatic welding control method in welding seam welded steel pipe |
| JPS5411917U (en) * | 1977-06-28 | 1979-01-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH029919B2 (en) | 1990-03-05 |
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