FR2084579A5 - Induction preheating the edges of the gap - in tube welding - Google Patents
Induction preheating the edges of the gap - in tube weldingInfo
- Publication number
- FR2084579A5 FR2084579A5 FR7108780A FR7108780A FR2084579A5 FR 2084579 A5 FR2084579 A5 FR 2084579A5 FR 7108780 A FR7108780 A FR 7108780A FR 7108780 A FR7108780 A FR 7108780A FR 2084579 A5 FR2084579 A5 FR 2084579A5
- Authority
- FR
- France
- Prior art keywords
- gap
- edges
- tube
- conductors
- tube welding
- 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Induction Heating (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
A tube to be HF longitudinally welded has the edges of the gap to be welded preheated by at least two conductors which are longitudinally oriented w.r.t. the gap and situated close to it. The conductors are part of a medium frequency induction heater whose field penetrates equally into the gap, and are disposed on the inner and outer faces of the tube close to an edge of the gap and those on the same side of the gap have current force in like directions. The system applies esp. to HF welding tubes whose wall thickness is >5mm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702012301 DE2012301C3 (en) | 1970-03-14 | 1970-03-14 | Device for inductive preheating of the welding edges of a tube to be welded with high frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2084579A5 true FR2084579A5 (en) | 1971-12-17 |
Family
ID=5765174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7108780A Expired FR2084579A5 (en) | 1970-03-14 | 1971-03-12 | Induction preheating the edges of the gap - in tube welding |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE763598A (en) |
| DE (1) | DE2012301C3 (en) |
| FR (1) | FR2084579A5 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2072118C1 (en) * | 1995-05-23 | 1997-01-20 | Александр Модестович Шамашкин | Induction heater for ferromagnetic material |
| DE102017004935A1 (en) * | 2017-05-18 | 2018-11-22 | Technische Universität Dortmund | Heating device for generating Joule'scher heat in the heating of preferably thin-walled sheet metal parts by means of medium-frequency power |
| DE102019129175A1 (en) * | 2019-10-29 | 2021-04-29 | Thermprotec Gmbh | Method and device for the thermal treatment of a tubular metallic component |
-
1970
- 1970-03-14 DE DE19702012301 patent/DE2012301C3/en not_active Expired
-
1971
- 1971-03-01 BE BE763598A patent/BE763598A/en unknown
- 1971-03-12 FR FR7108780A patent/FR2084579A5/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2012301B2 (en) | 1973-07-12 |
| BE763598A (en) | 1971-08-02 |
| DE2012301C3 (en) | 1974-02-07 |
| DE2012301A1 (en) | 1971-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |