JPS57124589A - Welding method for heat transfer tube - Google Patents
Welding method for heat transfer tubeInfo
- Publication number
- JPS57124589A JPS57124589A JP970081A JP970081A JPS57124589A JP S57124589 A JPS57124589 A JP S57124589A JP 970081 A JP970081 A JP 970081A JP 970081 A JP970081 A JP 970081A JP S57124589 A JPS57124589 A JP S57124589A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- tube
- heat transfer
- transfer tube
- laser light
- 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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
- B23K9/0288—Seam welding; Backing means; Inserts for curved planar seams for welding of tubes to tube plates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
PURPOSE:To weld a tube plate, a clad plate and a heat transfer tube simultaneously, and to improve the reliability of welding by inserting the heat transfer tube into the tube holes of the tube plate and the clad plate, expanding the tube to develop a tight fit, and applying laser light from the inside surface of the heat transfer tube at a right angle thereto. CONSTITUTION:A clad plate 2 is placed on a tube plate 1 in such a way as to fit thereto tightly, and a heat transfer tube 3 is inserted into the tube holes of the plate 1 and the plate 2, thence the tube 3 is expanded from the inside surface, so that it is brought in tight contact with the tube holes of the plate 1 and the plate 2. Next, a plane mirror 6 is moved to the position where laser light 7 falls to the mating surfaces of the plate 1 and the plate 2 at a right angle thereto from the inside surface of the tube 3, and said surfaces are welded by the thermal energy of the laser light 7. At this time, the mirror 6 is rotated to weld 4 the tube 3, the plate 1 and the plate 2 simultaneously over the entire circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP970081A JPS57124589A (en) | 1981-01-27 | 1981-01-27 | Welding method for heat transfer tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP970081A JPS57124589A (en) | 1981-01-27 | 1981-01-27 | Welding method for heat transfer tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57124589A true JPS57124589A (en) | 1982-08-03 |
Family
ID=11727501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP970081A Pending JPS57124589A (en) | 1981-01-27 | 1981-01-27 | Welding method for heat transfer tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57124589A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6397940B1 (en) * | 1998-06-24 | 2002-06-04 | Alfa Laval Ab | Method of joining at least four heat transfer plates to a plate package, and a plate package |
| CN103418886A (en) * | 2013-08-15 | 2013-12-04 | 东方电气集团东方锅炉股份有限公司 | Technology for welding carbon steel overlaying welding layer of tube plate of high pressure heat exchanger with low carbon steel tube in sealing way |
-
1981
- 1981-01-27 JP JP970081A patent/JPS57124589A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6397940B1 (en) * | 1998-06-24 | 2002-06-04 | Alfa Laval Ab | Method of joining at least four heat transfer plates to a plate package, and a plate package |
| CN103418886A (en) * | 2013-08-15 | 2013-12-04 | 东方电气集团东方锅炉股份有限公司 | Technology for welding carbon steel overlaying welding layer of tube plate of high pressure heat exchanger with low carbon steel tube in sealing way |
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