JPS58173079A - Production of heat exchanger made of aluminum - Google Patents
Production of heat exchanger made of aluminumInfo
- Publication number
- JPS58173079A JPS58173079A JP5374782A JP5374782A JPS58173079A JP S58173079 A JPS58173079 A JP S58173079A JP 5374782 A JP5374782 A JP 5374782A JP 5374782 A JP5374782 A JP 5374782A JP S58173079 A JPS58173079 A JP S58173079A
- Authority
- JP
- Japan
- Prior art keywords
- flat tube
- heat exchanger
- tube
- fin
- fitting
- 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
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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0014—Brazing of honeycomb sandwich structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
- F28D1/0478—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
【発明の詳細な説明】
この発明はエバポレータ、コンデンター等としく１）
て使用される熱交換器の製造方法の改良に関し、製造作
業を容易にすることで熱交換器の価格低減を図ることの
できる方法を得ることを目的としている。 。[Detailed Description of the Invention] The present invention relates to an improvement in the manufacturing method of heat exchangers used in evaporators, condensers, etc. The aim is to find a way to do this. .
第１図に示すように１蛇行したアルミニウム製の扁平曽
１．１の間にフィン２．２を挟持固定した熱交換器がエ
バポレータ、コンデンサ等として広（使用されている。As shown in FIG. 1, a heat exchanger in which fins 2.2 are sandwiched and fixed between one meandering aluminum flat plate 1.1 is widely used as an evaporator, a condenser, etc.
このような熱交換器を通常の断面円形の通液管に接続す
るために、扁平管１０両端部にはユニオンと呼ばれる継
手金具３．３がそれぞれ接続固定されている。ところで
、このように’Ｑ平管ｌとフィン２．２とを組み合せ、
扁平管１の両端部Ｖζ継手金具３．３を設けたアルミニ
ウム製熱交換器を造る場合、従来は次のようにして行な
っていた。即ち、扁平管１どフィン２．２とを両部材１
．２の接触部分にろう材を介イ１さ廿て図示の状態に組
合せ、仮組イ・４けしだ後、これらを加熱炉中で加熱し
て扁平管１とフィン２．２とを一体ろうイ・１けし、（
２）
その後扁平管１の両端に継手金具３．３をアルゴンガス
アーク溶接法等により溶接していた。In order to connect such a heat exchanger to a normal liquid passage pipe having a circular cross section, fittings 3.3 called unions are connected and fixed to both ends of the flat pipe 10, respectively. By the way, by combining 'Q flat tube l and fin 2.2 in this way,
When manufacturing an aluminum heat exchanger provided with Vζ joint fittings 3.3 at both ends of the flat tube 1, the conventional method was as follows. That is, the flat tube 1 and the fins 2.2 are connected to both members 1.
．． A brazing material 1 is inserted between the contact parts of 2 and 2, and the fins 2 and 2 are assembled in the state shown in the figure. After temporarily assembling A and 4, they are heated in a heating furnace to join the flat tube 1 and the fins 2 and 2 together. I・1 poppy, (
2) Thereafter, fittings 3.3 were welded to both ends of the flat tube 1 by argon gas arc welding or the like.
ところが、このように扁平管１とフィン２．２との接合
と、扁平管ｌと継手金具３．３との接合とを別々に行な
うことは、作業が面倒で製品の価格を高くする原因とな
るだけでなく、製品の品質にもばらつきが多くなり易い
ため好ましくなかった。However, separately performing the joining between the flat tube 1 and the fins 2.2 and the joining between the flat tube 1 and the fitting 3.3 requires laborious work and increases the price of the product. Not only this, but also the quality of the product tends to vary widely, which is not preferable.
本発明のアルミニウム製熱交換器の製造方法はに述のよ
うな不都合を解消したものである。The method of manufacturing an aluminum heat exchanger of the present invention eliminates the above-mentioned disadvantages.
以下、本発明を説明する。The present invention will be explained below.
本発明のアルミニウム製熱交換器の製造方法は、継手金
具３の組成を工夫し、この継手金具３と扁平管１との接
合部にろう材を載置（＠きろう）することにより、扁平
管１とフィン２．２とのろうイ・１け接合と同時にこの
扁平管１０両端部に継手金具３．３をろう（＝ｌけする
ようにしたものである。即ち、本発明の製造方法に使用
される継手金具３の材質は、マグネシウム（Ｍｇ）（３
）
を０．４．−０．８％、亜鉛（Ｚｎ）を３．８−４．６
％、ケイ素（Ｓｌ）を０２５％以下、マンガン（Ｍｎ）
を０２〜０７％含み残部を微量の不純物とアルミニウム
（ＡＩ）としたアルミニウム合金を使用する。この組成
は、通常継手金具を造る場合に使用するＪＩＳ ７Ｎ０
１材に比べてマグネシウムの量が少ないが、これは加熱
ろう伺は時にろう材の流れを良くしてろう付は部分にブ
ローホールが生じないようにするためである。但し、マ
グネシウムの量をあまり少なくし過ぎると、材料の硬度
が低ドして継手金具３とした場合の強度が不足するため
、０４〜０８％とした。このような継手金具３を両端に
接合する扁平悄は、通常アルミニウム製熱交換器に使用
されるアルミニウム合金を使用するが、例えばＪＩＳ
１０５０材（銅を０．０５％以下、ケイ素を０２５％以
下、鉄を０．４０％以下、マンガンを０．０５％以下、
マグネシウムを０．０５％以下、亜鉛を００５％以下、
チタンを００３襲以下含み残部をアルミ（４）
ニウムとして９９．５０％以−ト含んだもの。）を使用
できる。また、フィン２は、一体ろうイ・ｊけの場合に
広く使用されるもので、第３図に示すように、芯材４の
表裏両面にろう材５．５を積層したクラツド材を用いる
が、このクラツド材としては、例えば芯材４を・Ｔｒ８
３００３材（銅を００５〜０２０％、ケイ素を０．６憾
以Ｆ１鉄を０７％以−ト、マンガンを１０〜１５％、亜
鉛を０１％以下、その他の不純物を合部で０１５％以ド
含み、残部をアルミニウムとしたもの。）とし、ろう材
５をＪＩＳＢＡ、４３４３材やＢＡ、４０４５材、ＢＡ
４０４７材としたものが使用できる。The method for manufacturing an aluminum heat exchanger according to the present invention is achieved by devising the composition of the joint fitting 3 and placing a brazing material on the joint between the joint fitting 3 and the flat tube 1. At the same time as the pipe 1 and the fin 2.2 are joined together, the joint fittings 3.3 are soldered to both ends of the flat pipe 10. That is, the manufacturing method of the present invention The material of the joint fittings 3 used is magnesium (Mg) (3
) to 0.4. -0.8%, zinc (Zn) 3.8-4.6
%, silicon (Sl) 0.25% or less, manganese (Mn)
An aluminum alloy containing 02 to 07% of aluminum (AI) with the remainder being trace amounts of impurities and aluminum (AI) is used. This composition is based on JIS 7N0, which is normally used when making fittings.
The amount of magnesium is smaller than that in 1 material, but this is because heating brazing sometimes improves the flow of the filler metal, and brazing prevents blowholes from forming in the parts. However, if the amount of magnesium is too small, the hardness of the material will be low and the strength of the joint fitting 3 will be insufficient, so it was set at 04% to 08%. The flat fittings 3 are joined to both ends using an aluminum alloy that is normally used in aluminum heat exchangers.
1050 material (copper 0.05% or less, silicon 0.25% or less, iron 0.40% or less, manganese 0.05% or less,
Magnesium 0.05% or less, Zinc 0.05% or less,
Contains 99.50% or less of titanium, with the remainder being aluminum (4). ) can be used. Furthermore, the fin 2 is widely used in the case of integral brazing, and as shown in Fig. 3, a clad material is used in which brazing material 5.5 is laminated on both the front and back surfaces of the core material 4. As this cladding material, for example, the core material 4 is Tr8
3003 material (copper 0.05-0.020%, silicon 0.6%, F1 iron 0.7% or more, manganese 10-15%, zinc 0.01% or less, other impurities jointly 0.015% or less) ), and the brazing filler metal 5 is JISBA, 4343 material, BA, 4045 material, BA.
4047 material can be used.
このような組成を有する各部材１．２．３をろう（＝ｊ
け接合してアルミニウム製熱交挾器を製造する作業は次
のようにして行なう。即ち、まず第１図に示すように、
蛇行した扁平管１の間にフィン２．２を挾持させて両部
材を仮固定するとともに、扁平管１０両端部に継手金具
３．３を嵌着する。この扁平管ｌと継手金具３との嵌（
５）
合部には、第２図に示すようにろう材６を装置している
。このろう材６は、紐状のものを扁平管１の周囲に巻き
イ・１けたり、或は環状のものをこの扁平管１に外嵌し
たりして、継手金具３の端面と扁平管１の外周面とが交
叉する隅角部に装置する。このように１組立てられた扁
平管１、フィン２．２、継手金具３．３の表面には次い
で非腐蝕性フラックスを塗布した後、この７ラソクスを
乾燥させる。この非腐蝕性フラックスとしては、Ｋ、Ａ
ｌＦ３とに３ＡＩＦ６との共晶フラックスを蒸留水で５
〜２０重量％に溶解したものが使用でき、この溶解され
たフラックスを仮組伺けされた扁平管１等の表面に吹付
けて塗布する。フラックスが乾燥したならば、この仮組
伺けされた扁平管１とフィン２．２と継手金具３．３と
を加熱炉中に入れ、不活性雰囲気（通常窒素雰囲気）中
で加熱する。この際、扁平管１は、第１図の状態から反
時計方向に９０度回転させ、第２図に示すように継手金
具３．３を下方に位（６）
置させる。加熱温度は５２０〜６１０°Ｃ１好捷しくは
６０５°Ｃ程度とし、このうち６００°Ｃ前後の最高高
度を２〜３分持続させる。この加熱により、フィン２．
２０両面に設けたろう材５．５と、扁平管１の両端部と
継手金具３．３との接続部に設けたろう材６とが溶融し
、フィン２．２と扁平管１、継手金具３．３と扁平管１
とがそれぞれろうイ４けされる。ろうイ・１け後はその
まま製品として使用でき、フラックスを洗滌する必要は
ない。Each member 1.2.3 having such a composition is waxed (=j
The process of manufacturing an aluminum heat exchanger by bonding is carried out as follows. That is, as shown in Figure 1,
Fins 2.2 are sandwiched between the meandering flat tubes 1 to temporarily fix both members, and joint fittings 3.3 are fitted to both ends of the flat tubes 10. The fit between this flat tube l and the fitting 3 (
5) A brazing filler metal 6 is installed at the joint as shown in FIG. This brazing filler metal 6 is made by wrapping a string-like material around the flat tube 1 or by fitting a ring-shaped material around the flat tube 1 to connect the end surface of the joint fitting 3 and the flat tube. The device is installed at the corner where the outer circumferential surface of No. 1 intersects. Next, a non-corrosive flux is applied to the surfaces of the flat tube 1, fins 2.2, and joint fittings 3.3 assembled in this way, and then the seven lasoxes are dried. This non-corrosive flux includes K, A
Add eutectic flux of IF3 to 3AIF6 with distilled water.
A flux dissolved in a concentration of up to 20% by weight can be used, and the dissolved flux is applied by spraying onto the surface of the temporarily assembled flat tube 1, etc. Once the flux has dried, the temporarily assembled flat tube 1, fins 2.2, and fittings 3.3 are placed in a heating furnace and heated in an inert atmosphere (usually a nitrogen atmosphere). At this time, the flat tube 1 is rotated 90 degrees counterclockwise from the state shown in FIG. 1, and the joint fitting 3.3 is positioned downward (6) as shown in FIG. The heating temperature is 520 to 610°C, preferably about 605°C, and the highest temperature of about 600°C is maintained for 2 to 3 minutes. This heating causes the fin 2.
The brazing filler metal 5.5 provided on both sides of the tube 20 and the brazing filler metal 6 provided at the connection between both ends of the flat tube 1 and the fitting 3.3 are melted, and the fin 2.2, the flat tube 1, and the fitting 3.3 are melted. 3 and flat tube 1
and are each given a deafening 4 mark. After soldering, it can be used as a product as is, and there is no need to wash the flux.
本発明のアルミニウム製熱交換器の製造方法は以上に述
べた通り、扁平管１とフィン２．２との接合と、扁平管
１，１の両端部への継手金具３．３の接合とを同時に行
なえるため、熱交換器の製造作業が容易となり、品質の
安定したー製品を得ることができ、産業−Ｌの効果が大
きい０As described above, the method for manufacturing an aluminum heat exchanger of the present invention includes joining the flat tubes 1 and the fins 2.2, and joining the joint fittings 3.3 to both ends of the flat tubes 1, 1. Because they can be carried out simultaneously, the manufacturing work of heat exchangers is facilitated, and products with stable quality can be obtained, which has a large industrial effect.
第１図は本発明の方法により造られる熱交換器の１例を
示す正面図、第２図は第１図のＡ部（７）
拡大断面図、第３図は第１図の■３部拡大断面図である
。
１：扁平惺、２：フィン、３°継手金具、４：芯材、５
．６：ろう材。
特許出願人 １１本ラヂヱーター株式会社代 理
人 小 山 欽 造（ほか１名）
（８）Fig. 1 is a front view showing an example of a heat exchanger manufactured by the method of the present invention, Fig. 2 is an enlarged cross-sectional view of section A (7) in Fig. 1, and Fig. 3 is a section 3 of Fig. 1. It is an enlarged sectional view. 1: Flat plate, 2: Fin, 3° joint fitting, 4: Core material, 5
．． 6: Brazing material. Patent applicant: 11hon Radiator Co., Ltd. Agent
Kinzo Koyama (and 1 other person) (8)
Claims (1)
間にフィン（２）（２）を、両部材（＋’） （２）
の間にろう材（５）を介在させて挾持し、扁平管（１）
の両端部にはマグネンウムを０４〜０８％含むアルミニ
ウム合金製の継手金具（３）（３）を嵌着し、この嵌着
部にろう材（６）を装着して各部材（１）（２）（３）
を仮組付けし、表面に非腐蝕性フラックスを塗布し乾燥
した後、不γδ性雰囲気中で加熱して上記ろう材（５）
（’６）を溶融し、扁平管（１）とフィン（２）（２）
とをろう付は固定すると同時に扁平管（１）の両端部に
継手金具（３）（３）なろうイ、１け固定するアルミニ
ウム製熱交換器の製造方法０The fins (2) (2) are made of aluminum alloy and are formed in a meandering manner between the /ζ flat tubes (]), and both members (+') (2).
A flat tube (1) is sandwiched with a brazing filler metal (5) interposed therebetween.
Fittings (3) (3) made of aluminum alloy containing 04 to 08% magnenium are fitted to both ends of the parts, and a brazing filler metal (6) is attached to these fitted parts to form each member (1) (2). )(3)
After temporarily assembling and applying non-corrosive flux to the surface and drying, the above brazing filler metal (5) is heated in a non-γδ atmosphere.
('6), flat tube (1) and fin (2) (2)
Method for manufacturing an aluminum heat exchanger in which the fittings (3) (3) are fixed at both ends of the flat tube (1) by brazing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5374782A JPS58173079A (en) | 1982-04-02 | 1982-04-02 | Production of heat exchanger made of aluminum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5374782A JPS58173079A (en) | 1982-04-02 | 1982-04-02 | Production of heat exchanger made of aluminum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58173079A true JPS58173079A (en) | 1983-10-11 |
| JPH0339787B2 JPH0339787B2 (en) | 1991-06-14 |
Family
ID=12951401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5374782A Granted JPS58173079A (en) | 1982-04-02 | 1982-04-02 | Production of heat exchanger made of aluminum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58173079A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4732311A (en) * | 1984-05-31 | 1988-03-22 | Nippondenso Co., Ltd. | Process of producing lightweight and corrosion-resistant heat exchanger |
| JP2011047661A (en) * | 2009-08-25 | 2011-03-10 | Fuji Bourdon Seisakusho:Kk | Bourdon tube and thermometer including the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2519415Y2 (en) * | 1992-07-27 | 1996-12-04 | 弘進化工株式会社 | Flag hanger |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51122644A (en) * | 1975-04-21 | 1976-10-26 | Nihon Radiator Co | Manufacturing method of products made of aluminium or aluminium alloy |
| JPS5736062A (en) * | 1980-08-09 | 1982-02-26 | Matsushita Refrig Co | Production of heat exchanger |
-
1982
- 1982-04-02 JP JP5374782A patent/JPS58173079A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51122644A (en) * | 1975-04-21 | 1976-10-26 | Nihon Radiator Co | Manufacturing method of products made of aluminium or aluminium alloy |
| JPS5736062A (en) * | 1980-08-09 | 1982-02-26 | Matsushita Refrig Co | Production of heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4732311A (en) * | 1984-05-31 | 1988-03-22 | Nippondenso Co., Ltd. | Process of producing lightweight and corrosion-resistant heat exchanger |
| JP2011047661A (en) * | 2009-08-25 | 2011-03-10 | Fuji Bourdon Seisakusho:Kk | Bourdon tube and thermometer including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0339787B2 (en) | 1991-06-14 |
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