JPH09136160A - Seal welding method between end plate of heat exchanger and flat tube - Google Patents
Seal welding method between end plate of heat exchanger and flat tubeInfo
- Publication number
- JPH09136160A JPH09136160A JP7292713A JP29271395A JPH09136160A JP H09136160 A JPH09136160 A JP H09136160A JP 7292713 A JP7292713 A JP 7292713A JP 29271395 A JP29271395 A JP 29271395A JP H09136160 A JPH09136160 A JP H09136160A
- Authority
- JP
- Japan
- Prior art keywords
- flat tube
- end plate
- heat exchanger
- seal welding
- seal
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
- F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
- F28F9/185—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding with additional preformed parts
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
(57)【要約】
【課題】 熱交換器の端板と偏平管とをシール溶接する
際に、溶損部の発生を防止して健全なシール溶接部を得
ることができるようにする。
【解決手段】 熱交換器の端板２と偏平管３とをシール
溶接するに当たり、偏平管３内に拡管兼冷却治具１を差
し込んで拡管して端板２と偏平管３とを密着させた上、
同治具１で冷却している状態でシール溶接を行う。
(57) Abstract: When seal welding an end plate of a heat exchanger and a flat tube, it is possible to prevent the generation of a melt damage portion and obtain a sound seal weld portion. SOLUTION: When seal welding an end plate 2 and a flat tube 3 of a heat exchanger, a tube expanding and cooling jig 1 is inserted into the flat tube 3 to expand the tube so that the end plate 2 and the flat tube 3 are brought into close contact with each other. On top of that
Seal welding is performed while the jig 1 is cooling.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、熱交換器の端板と
偏平管とのシール溶接方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seal welding method for an end plate of a heat exchanger and a flat tube.
【０００２】[0002]
【従来の技術】従来の熱交換器の端板と偏平管とのシー
ル溶接方法を、図３及び図４によって説明する。図３及
び図４に示すように、熱交換器の端板２と偏平管３とを
シール溶接する際、端板２に偏平管３を差し込みＴＩＧ
溶接トーチ５によってＴＩＧ溶接していた。なお、４は
偏平管３に取付けられたフィンである。2. Description of the Related Art A conventional seal welding method for an end plate of a heat exchanger and a flat tube will be described with reference to FIGS. As shown in FIGS. 3 and 4, when seal welding the end plate 2 and the flat tube 3 of the heat exchanger, the flat tube 3 is inserted into the end plate 2 and the TIG is used.
TIG welding was performed by the welding torch 5. In addition, 4 is a fin attached to the flat tube 3.
【０００３】[0003]
【発明が解決しようとする課題】前記の図３及び図４に
示す従来の方法において、端板２と偏平管３とをシール
溶接する際、端板２に偏平管３を差し込んだ時、両材の
加工精度のバラツキにより、スキ間１１が生じていた。
この状態で溶接すると、端板２と偏平管３のそれぞれの
板厚が薄いため、図５に示すようにシール溶接部１０に
溶損部１２が生じ修復不可能となり、このような溶損部
１２を生じた端板と偏平管とを交換しなければならなか
った。In the conventional method shown in FIGS. 3 and 4, when the end plate 2 and the flat tube 3 are seal-welded together, when the flat tube 3 is inserted into the end plate 2, both The gap 11 was generated due to the variation in the processing accuracy of the material.
When welding is performed in this state, the plate thicknesses of the end plate 2 and the flat tube 3 are thin, and therefore, as shown in FIG. The end plate that produced 12 had to be replaced with a flat tube.
【０００４】本発明は、以上の問題点を解決することが
できる熱交換器の端板と偏平管とのシール溶接方法を提
供しようとするものである。The present invention is intended to provide a seal welding method for an end plate of a heat exchanger and a flat tube which can solve the above problems.
【０００５】[0005]
【発明が解決しようとする課題】本発明の熱交換器の端
板と偏平管とのシール溶接方法は、熱交換器の端板と偏
平管とをシール溶接するに当たり、偏平管内に拡管兼冷
却治具を偏平管に差し込み端板と偏平管とを密着させて
シール溶接することを特徴とする。The seal welding method of the end plate of the heat exchanger and the flat tube of the present invention is performed by sealing and welding the end plate of the heat exchanger and the flat tube. The jig is inserted into the flat tube, and the end plate and the flat tube are brought into close contact with each other and seal welding is performed.
【０００６】本発明では、拡管兼冷却治具を偏平管に差
し込み端板と偏平管を密着させることにより、端板と偏
平管との間にスキ間が生ずることがなく、溶損部が発生
しない。また、偏平管に差し込まれた拡管兼冷却治具は
溶接時の冷却作用を奏し、健全なシール溶接が可能とな
る。In the present invention, by inserting the pipe expanding / cooling jig into the flat tube and bringing the end plate and the flat tube into close contact with each other, there is no gap between the end plate and the flat tube, and a melting damage portion occurs. do not do. Further, the pipe expanding / cooling jig inserted into the flat pipe exerts a cooling action during welding, which enables sound seal welding.
【０００７】[0007]
【発明の実施の形態】本発明の実施の一形態を、図１及
び図２によって説明する。まず、図１に示すように、端
板２に図４に示すものと同様な形状の偏平管３を差し込
んだ後に、銅製の拡管兼冷却治具１を偏平管３に差し込
み、偏平管３を拡管して、端板２と偏平管３とのスキ間
を無くす。なお、２ａは端板２の偏平管３を差し込む穴
の部分に形成され偏平管３の外周面に接するフランジで
ある。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. First, as shown in FIG. 1, after inserting a flat tube 3 having the same shape as that shown in FIG. 4 into the end plate 2, a copper pipe expanding / cooling jig 1 is inserted into the flat tube 3 and the flat tube 3 is inserted. The pipe is expanded to eliminate the gap between the end plate 2 and the flat pipe 3. Reference numeral 2a is a flange which is formed in a hole portion of the end plate 2 into which the flat tube 3 is inserted and which contacts the outer peripheral surface of the flat tube 3.
【０００８】この状態でＴＩＧ溶接トーチ５で端板２と
偏平管３とをシール溶接する。前記のように端板２と偏
平管３との間にスキ間がないことと拡管兼冷却治具１の
冷却作用によって、図２に示すように溶損部のない健全
なシール溶接部１０を得ることができる。In this state, the end plate 2 and the flat tube 3 are seal-welded with the TIG welding torch 5. As described above, since there is no gap between the end plate 2 and the flat tube 3 and the cooling action of the tube expanding / cooling jig 1, as shown in FIG. Obtainable.
【０００９】[0009]
【発明の効果】本発明は、熱交換器の端板と偏平管とを
シール溶接するに当たり、偏平管内に拡管兼冷却治具を
差し込んで端板と偏平管とを密着させてシール溶接をし
ているために、端板と偏平管との間にスキ間が生ぜず、
かつ、拡管兼冷却治具の冷却効果によって端板と偏平管
との健全なシール溶接を行うことができる。また、溶損
部が生じて端板や偏平管を取替える必要がなく、大幅な
工数低減を図ることができる。According to the present invention, when the end plate of the heat exchanger and the flat tube are seal-welded, a pipe expanding and cooling jig is inserted into the flat tube to bring the end plate and the flat tube into close contact with each other for seal welding. Therefore, there is no gap between the end plate and the flat tube,
Moreover, sound sealing welding between the end plate and the flat tube can be performed by the cooling effect of the tube expanding and cooling jig. In addition, it is not necessary to replace the end plate and the flat tube due to the melt-dissipated portion, and the number of steps can be significantly reduced.
【図１】本発明の実施の一形態を示す縦断面図である。FIG. 1 is a vertical sectional view showing an embodiment of the present invention.
【図２】前記実施の形態のシール溶接部を示す縦断面図
である。FIG. 2 is a vertical sectional view showing a seal welded portion of the embodiment.
【図３】従来の熱交換器の端板と偏平管とのシール溶接
方法を示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing a conventional seal welding method for an end plate and a flat tube of a heat exchanger.
【図４】前記従来のシール溶接方法を示す平面図であ
る。FIG. 4 is a plan view showing the conventional seal welding method.
【図５】前記従来のシール溶接方法のシール溶接部を示
す縦断面図である。FIG. 5 is a vertical cross-sectional view showing a seal welded portion of the conventional seal welding method.
１ 拡管兼冷却治具 ２ 端板 ３ 偏平管 ４ フィン ５ ＴＩＧ溶接トーチ １０ シール溶接部 １１ スキ間 １２ 溶損部 1 Pipe expanding / cooling jig 2 End plate 3 Flat pipe 4 Fins 5 TIG welding torch 10 Seal weld 11 Gap 12 Melt damage
Claims (1)
するに当たり、偏平管内に拡管兼冷却治具を差し込み端
板と偏平管とを密着させてシール溶接することを特徴と
する熱交換器の端板と偏平管とのシール溶接方法。1. When heat-sealing an end plate of a heat exchanger and a flat tube, a heat-spreading method is characterized in that a pipe expanding / cooling jig is inserted into the flat tube and the end plate and the flat tube are brought into close contact with each other to perform seal welding. Seal welding method for end plate of exchanger and flat tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7292713A JPH09136160A (en) | 1995-11-10 | 1995-11-10 | Seal welding method between end plate of heat exchanger and flat tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7292713A JPH09136160A (en) | 1995-11-10 | 1995-11-10 | Seal welding method between end plate of heat exchanger and flat tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09136160A true JPH09136160A (en) | 1997-05-27 |
Family
ID=17785353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7292713A Withdrawn JPH09136160A (en) | 1995-11-10 | 1995-11-10 | Seal welding method between end plate of heat exchanger and flat tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09136160A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002100568A1 (en) * | 2001-06-06 | 2002-12-19 | Denso Corporation | Heat exchanger and method of manufacturing the heat exchanger |
| EP1650523A1 (en) * | 2004-10-18 | 2006-04-26 | Calsonic Kansei Corporation | Joint structure of header tank and connector in heat exchanger, and method of joining thereof |
| JP2012121037A (en) * | 2010-12-07 | 2012-06-28 | Ihi Corp | Repairing method of tube welding part of tube plate |
| CN102909496A (en) * | 2011-08-02 | 2013-02-06 | 苏州勃朗科技有限公司 | Welding deformation preventing heat conductor |
| CN103042327A (en) * | 2012-12-28 | 2013-04-17 | 江阴市振江钢结构有限公司 | Welding structure and welding method for thin-walled tube |
| JP2016112599A (en) * | 2014-12-16 | 2016-06-23 | 日本パーカライジング株式会社 | Joint device, joint method, manufacturing method of panel type heat exchanger, and cooling device |
| CN106679454A (en) * | 2016-12-30 | 2017-05-17 | 浙江赛迅环保科技有限公司 | PTFE heat exchanger |
| CN115106691A (en) * | 2022-08-26 | 2022-09-27 | 无锡鼎邦换热设备股份有限公司 | Shell-and-tube heat exchanger welding device |
-
1995
- 1995-11-10 JP JP7292713A patent/JPH09136160A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002100568A1 (en) * | 2001-06-06 | 2002-12-19 | Denso Corporation | Heat exchanger and method of manufacturing the heat exchanger |
| US6772831B2 (en) | 2001-06-06 | 2004-08-10 | Denso Corporation | Heat exchanger and method for manufacturing the same |
| EP1650523A1 (en) * | 2004-10-18 | 2006-04-26 | Calsonic Kansei Corporation | Joint structure of header tank and connector in heat exchanger, and method of joining thereof |
| JP2012121037A (en) * | 2010-12-07 | 2012-06-28 | Ihi Corp | Repairing method of tube welding part of tube plate |
| CN102909496A (en) * | 2011-08-02 | 2013-02-06 | 苏州勃朗科技有限公司 | Welding deformation preventing heat conductor |
| CN103042327A (en) * | 2012-12-28 | 2013-04-17 | 江阴市振江钢结构有限公司 | Welding structure and welding method for thin-walled tube |
| JP2016112599A (en) * | 2014-12-16 | 2016-06-23 | 日本パーカライジング株式会社 | Joint device, joint method, manufacturing method of panel type heat exchanger, and cooling device |
| CN106679454A (en) * | 2016-12-30 | 2017-05-17 | 浙江赛迅环保科技有限公司 | PTFE heat exchanger |
| CN106679454B (en) * | 2016-12-30 | 2018-08-17 | 浙江赛迅环保科技有限公司 | A kind of PTFE heat exchangers |
| CN115106691A (en) * | 2022-08-26 | 2022-09-27 | 无锡鼎邦换热设备股份有限公司 | Shell-and-tube heat exchanger welding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20030204 |