JPH04351267A - Brazing method for heat exchanger tube and fins of aluminum heat exchanger - Google Patents
Brazing method for heat exchanger tube and fins of aluminum heat exchangerInfo
- Publication number
- JPH04351267A JPH04351267A JP15212791A JP15212791A JPH04351267A JP H04351267 A JPH04351267 A JP H04351267A JP 15212791 A JP15212791 A JP 15212791A JP 15212791 A JP15212791 A JP 15212791A JP H04351267 A JPH04351267 A JP H04351267A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- fins
- corrugated fins
- polybutene
- flux
- 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
- 229910052782 aluminium Inorganic materials 0.000 title claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 19
- 238000005219 brazing Methods 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 12
- 230000004907 flux Effects 0.000 claims abstract description 27
- 229920001083 polybutene Polymers 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000011295 pitch Substances 0.000 claims 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 239000002612 dispersion medium Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000007921 spray Substances 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】この発明は、自動車用空調機のエ
バポレータ等として使用されるアルミニウム製熱交換器
を構成する、伝熱管とコルゲートフィンとをろう付けす
る方法の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved method of brazing heat transfer tubes and corrugated fins constituting an aluminum heat exchanger used as an evaporator of an automobile air conditioner.
【０００２】0002
【従来の技術】自動車用空調機に組み込まれて、内部で
冷媒を蒸発させ、外部を流通する空気を冷却するエバポ
レータとして、図３の上部に示す様な構造のアルミニウ
ム製熱交換器が、例えば特開昭６１−２９３６６１号公
報に示されている様に、従来から知られている。2. Description of the Related Art An aluminum heat exchanger having a structure as shown in the upper part of FIG. This has been known for a long time as disclosed in Japanese Patent Application Laid-Open No. 61-293661.
【０００３】この従来から知られたアルミニウム製熱交
換器は、アルミニウムを押し出し成形する事により造ら
れた、断面が扁平な伝熱管１と、複数のコルゲートフィ
ン２、２とから構成されている。上記伝熱管１は、互い
に平行な複数の直線部３、３を、互いに湾曲方向が逆の
湾曲部４、５により連続させ、全体を蛇行させたもので
、上記複数のコルゲートフィン２、２は、隣り合う直線
部３、３の間、並びに両端に位置する直線部３、３の外
側面にろう付け固定されている。This conventionally known aluminum heat exchanger is composed of a heat exchanger tube 1 having a flat cross section and a plurality of corrugated fins 2, which are made by extruding aluminum. The heat exchanger tube 1 has a plurality of parallel straight portions 3, 3 connected by curved portions 4, 5 whose curved directions are opposite to each other, and has a meandering structure as a whole, and the plurality of corrugated fins 2, 2 are , are brazed and fixed to the outer surfaces of the straight parts 3, 3 located between the adjacent straight parts 3, 3 and at both ends.
【０００４】上述の様なアルミニウム製熱交換器を、空
調機用のエバポレータとして使用する場合には、伝熱管
１の一端から液状の冷媒を送り込み、この液状の冷媒を
伝熱管１内で蒸発させる。冷媒の蒸発に伴なって伝熱管
１及びコルゲートフィン２、２の温度が低下する為、こ
れら伝熱管１及びコルゲートフィン２、２の間に空調用
の空気を流せば、この空気を冷却して、車室内の冷房を
行なう事が出来る。[0004] When an aluminum heat exchanger as described above is used as an evaporator for an air conditioner, a liquid refrigerant is fed into one end of the heat transfer tube 1 and the liquid refrigerant is evaporated within the heat transfer tube 1. . As the refrigerant evaporates, the temperature of the heat transfer tubes 1 and corrugated fins 2, 2 decreases, so if air conditioning air is flowed between these heat transfer tubes 1 and corrugated fins 2, 2, this air can be cooled. , it is possible to cool the inside of the vehicle.
【０００５】ところで、上述の様に構成され使用される
アルミニウム製熱交換器をろう付けする場合、伝熱管１
とコルゲートフィン２、２とを仮組み付けした状態で、
表面にフラックスを塗布した後、これら伝熱管１とコル
ゲートフィン２、２とを炉中で加熱して、伝熱管１とコ
ルゲートフィン２、２とをろう付けする。隣り合う伝熱
管１とコルゲートフィン２、２との内、少なくとも一方
は、表面にろう材を積層したクラッド材により造られて
いる為、フラックスの存在下で伝熱管１及びコルゲート
フィン２、２を加熱すれば、隣り合う伝熱管１とコルゲ
ートフィン２、２とが互いにろう付け接合される。By the way, when brazing the aluminum heat exchanger constructed and used as described above, the heat exchanger tubes 1
With the and corrugated fins 2 and 2 temporarily assembled,
After applying flux to the surface, the heat transfer tube 1 and the corrugated fins 2, 2 are heated in a furnace to braze the heat transfer tube 1 and the corrugated fins 2, 2 together. Since at least one of the adjacent heat exchanger tubes 1 and corrugated fins 2, 2 is made of a clad material with a brazing filler metal layered on the surface, the heat exchanger tubes 1 and corrugated fins 2, 2 are bonded together in the presence of flux. When heated, the adjacent heat exchanger tubes 1 and corrugated fins 2, 2 are brazed to each other.
【０００６】仮組み付けされた伝熱管１とコルゲートフ
ィン２、２との表面にフラックスを塗布する方法として
従来は、浸漬法とスプレー法とが知られていた。この内
の浸漬法は、前記特開昭６１−２９３６６１号公報にも
記載されたもので、図３に示す様に、容器６内に、水等
の分散媒にフラックスを分散させた液７を貯溜しておき
、この液７中に、仮組み付けされた伝熱管１とコルゲー
トフィン２、２とを浸漬する。Conventionally, a dipping method and a spray method have been known as methods for applying flux to the surfaces of the temporarily assembled heat exchanger tubes 1 and corrugated fins 2, 2. The immersion method is also described in the above-mentioned Japanese Patent Application Laid-Open No. 61-293661, and as shown in FIG. 3, a liquid 7 in which flux is dispersed in a dispersion medium such as water is placed in a container 6. The temporarily assembled heat exchanger tube 1 and corrugated fins 2, 2 are immersed in this liquid 7.
【０００７】又、スプレー法は、図４に示す様に、やは
り仮組み付けされた伝熱管１とコルゲートフィン２、２
とに、水等の分散媒にフラックスを分散させた液を、ス
プレーノズル８から噴霧する。[0007] Furthermore, as shown in FIG.
Then, a liquid in which flux is dispersed in a dispersion medium such as water is sprayed from the spray nozzle 8.
【０００８】[0008]
【発明が解決しようとする課題】ところが、上述の様に
してアルミニウム製熱交換器を構成する伝熱管１とコル
ゲートフィン２、２とをろう付けする場合、伝熱管１と
コルゲートフィン２、２との接合部のろう付け性を確保
する事が難しいだけでなく、コルゲートフィン２、２の
間にフラックスの残渣が詰まり易かった。[Problems to be Solved by the Invention] However, when the heat exchanger tube 1 and the corrugated fins 2, 2 constituting the aluminum heat exchanger are brazed as described above, the heat exchanger tube 1 and the corrugated fins 2, 2 are Not only was it difficult to ensure brazing properties at the joints, but also flux residue was likely to get clogged between the corrugated fins 2 and 2.
【０００９】即ち、直線部３、３の間にコルゲートフィ
ン２、２を挟持した部分には、空調用の空気を流通させ
る為、断面積の小さな多数の微小流路が形成されるが、
浸漬法、スプレー法、何れの方法によりフラックスの塗
布作業を行なう場合でも、各微小流路内にフラックスを
隈なく行き渡らせる事が難しく、部分的にろう付け不良
が生じ易かった。伝熱管１とコルゲートフィン２、２と
のろう付けが不良になると、伝熱管１とコルゲートフィ
ン２、２との間の熱伝達性が不良になり、アルミニウム
製熱交換器の性能が悪くなってしまう。That is, in the portion where the corrugated fins 2, 2 are sandwiched between the straight portions 3, 3, a large number of micro channels with small cross-sectional areas are formed in order to circulate air for air conditioning.
Regardless of whether the flux is applied by dipping or spraying, it is difficult to spread the flux thoroughly within each microchannel, and brazing defects tend to occur locally. If the brazing between the heat exchanger tube 1 and the corrugated fins 2, 2 becomes defective, the heat transfer between the heat exchanger tube 1 and the corrugated fins 2, 2 will become poor, and the performance of the aluminum heat exchanger will deteriorate. Put it away.
【００１０】水に分散させたフラックスの塗布量（噴霧
量）を多くして、上記伝熱管１とコルゲートフィン２、
２との接合部に十分量のフラックスを存在させる事も可
能ではあるが、徒にフラックスの使用量が増大して、経
費が嵩むだけでなく、排液処理等の手間を要する為、好
ましくない。しかも、余分なフラックスは、コルゲート
フィン２、２の表面に残渣として残り、前記微小流路を
詰まらせて、やはりアルミニウム製熱交換器の性能を劣
化させてしまう。[0010] By increasing the amount of flux dispersed in water (spray amount), the heat exchanger tube 1 and the corrugated fin 2,
Although it is possible to have a sufficient amount of flux present at the junction with 2, it is not preferable because the amount of flux used increases unnecessarily, which not only increases costs but also requires time and effort such as drainage treatment. . Moreover, the excess flux remains as a residue on the surfaces of the corrugated fins 2, 2, clogging the microchannels and degrading the performance of the aluminum heat exchanger.
【００１１】特開平１−２０２３９６号公報等には、フ
ラックスの分散媒として、イソブチレンを主体とする共
重合体で、構造式[0011] In JP-A-1-202396, etc., a copolymer mainly composed of isobutylene is used as a flux dispersion medium, and a copolymer having the structural formula
【化１】
で表わされるポリブテンを使用する事で、水を分散媒と
した場合に比べて良好なろう付け性を確保する技術が開
示されているが、図３〜４に示す様に組み合わされた伝
熱管１とコルゲートフィン２、２とのろう付けを行なう
場合には、単にフラックスの分散媒を水からポリブテン
に代えただけでは、必ずしも十分なろう付け性を得られ
ない場合が生じる。A technique has been disclosed that uses polybutene represented by [Chemical formula 1] to ensure better brazing properties than when water is used as a dispersion medium, but it is combined as shown in Figures 3 and 4. When brazing the heat exchanger tube 1 and the corrugated fins 2, 2, simply changing the flux dispersion medium from water to polybutene may not necessarily provide sufficient brazing performance.
【００１２】本発明のアルミニウム製熱交換器の伝熱管
とフィンとのろう付け方法は、上述の様な事情に鑑みて
発明されたものである。The method of brazing the heat exchanger tubes and fins of an aluminum heat exchanger according to the present invention was invented in view of the above-mentioned circumstances.
【００１３】[0013]
【課題を解決するための手段】本発明のアルミニウム製
熱交換器の伝熱管とフィンとのろう付け方法は、先ず伝
熱管に設けられた互いに平行な複数の直線部同士の間に
、コルゲートフィンを挟持した後、上記複数の直線部を
水平方向に配列した状態で、上記複数の直線部と同ピッ
チで設けられた、直線部と同数のノズル開口より、フラ
ックスを分散させたポリブテンを吐出して、このポリブ
テンを各直線部の上縁に付着させる。[Means for Solving the Problem] The method of brazing the heat exchanger tubes and fins of the aluminum heat exchanger of the present invention is to first braze the corrugated fins between a plurality of parallel straight sections provided on the heat exchanger tubes. After sandwiching the plurality of straight parts, polybutene with flux dispersed therein is discharged from the same number of nozzle openings as the straight parts, which are provided at the same pitch as the plurality of straight parts, with the plurality of straight parts arranged in a horizontal direction. This polybutene is then deposited on the upper edge of each straight section.
【００１４】その後、上記複数の直線部を有する伝熱管
と複数のコルゲートフィンとを、上記複数の直線部を水
平方向に配列し、且つポリブテンが付着した縁を上方に
位置させた状態で、これら伝熱管とコルゲートフィンと
を炉中で加熱する事により、この伝熱管とコルゲートフ
ィンとをろう付けする。[0014] Thereafter, the heat exchanger tube having the plurality of straight portions and the plurality of corrugated fins are placed in a state in which the plurality of straight portions are arranged horizontally and the edges to which polybutene is attached are positioned upward. By heating the heat exchanger tube and corrugate fin in a furnace, the heat exchanger tube and corrugate fin are brazed together.
【００１５】[0015]
【作用】ポリブテンの粘度は、水に比較して遥かに大き
い為、伝熱管の直線部の上縁にのみフラックスを塗布す
る事が可能となる。[Operation] Since the viscosity of polybutene is much higher than that of water, it is possible to apply flux only to the upper edge of the straight section of the heat exchanger tube.
【００１６】又、ポリブテンは、ろう付け温度（６００
℃程度）以下の温度（４００℃程度）で昇華し、後に残
渣を生じないが、分散媒であるポリブテンが昇華するの
に伴なって、このポリブテン中に分散されていたフラッ
クスが、伝熱管の直線部の両側面に沿って下方に移動（
落下）し、毛細管現象によって、各コルゲートフィンと
直線部両側面との接触部に集中する。[0016] Furthermore, polybutene has a brazing temperature (600
The flux dispersed in the polybutene is sublimated at temperatures below (about 400 degrees Celsius) and does not leave any residue afterwards, but as the dispersion medium sublimes, the flux dispersed in the polybutene Move downward along both sides of the straight section (
) and concentrates at the contact points between each corrugated fin and both sides of the straight section due to capillary action.
【００１７】この結果、全体としてのフラックスの使用
量を少なく抑えられるにも拘らず、各コルゲートフィン
と直線部両側面との接触部に存在するフラックスの量が
十分に多くなり、伝熱管とコルゲートフィンとが十分良
好にろう付けされる。As a result, although the overall amount of flux used can be kept low, the amount of flux present in the contact area between each corrugated fin and both side surfaces of the straight section is sufficiently large, and the The fins are well-brazed.
【００１８】[0018]
【実施例】図１は本発明の第一実施例を示している。断
面が扁平で、前記図３〜４に示す様に全体を蛇行させた
伝熱管１に設けられた、互いに平行な複数の直線部３、
３同士の間には、コルゲートフィン２、２を挟持する事
により、アルミニウム製熱交換器を仮組み付けしている
。そして、この様に仮組み付けされたアルミニウム製熱
交換器は、上記複数の直線部３、３を水平方向に配列し
た状態で支持されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a first embodiment of the present invention. A plurality of mutually parallel straight portions 3 provided in a heat exchanger tube 1 having a flat cross section and meandering as a whole as shown in FIGS. 3 and 4,
3, an aluminum heat exchanger is temporarily assembled by sandwiching the corrugated fins 2, 2. The aluminum heat exchanger temporarily assembled in this manner is supported with the plurality of straight portions 3, 3 arranged in the horizontal direction.
【００１９】９は、上記各直線部３、３の上縁にフラッ
クスを分散させたポリブテンを付着させる為の分配器（
ディスペンサー）で、供給管１０により送り込まれたポ
リブテンを、ノズル１１の下端開口から吐出させる。Reference numeral 9 denotes a distributor (
(dispenser), the polybutene sent through the supply pipe 10 is discharged from the lower end opening of the nozzle 11.
【００２０】即ち、上記ノズル１１の下端部には、上記
アルミニウム製熱交換器を構成する伝熱管１の複数の直
線部３、３と同ピッチで、この直線部３、３と同数のノ
ズル開口が設けられている。That is, the lower end of the nozzle 11 has the same number of nozzle openings as the linear sections 3, 3 at the same pitch as the plurality of linear sections 3, 3 of the heat exchanger tube 1 constituting the aluminum heat exchanger. is provided.
【００２１】上記直線部３、３とコルゲートフィン２、
２との接触部にフラックスを供給する場合には、上記分
配器９からノズル１１を通じて、フラックスを分散させ
たポリブテンを吐出し、このポルブテンを各直線部３、
３の上縁に付着させる。[0021] The straight portions 3, 3 and the corrugated fins 2,
2, the distributor 9 discharges polybutene in which flux is dispersed through the nozzle 11, and this polybutene is supplied to each linear section 3,
Attach it to the upper edge of 3.
【００２２】その後、上記複数の直線部３、３を有する
伝熱管１と複数のコルゲートフィン２、２とを、上記複
数の直線部３、３を図１に示した状態のまま水平方向に
配列し、且つポリブテンが付着した縁を上方に位置させ
た状態で、これら伝熱管１とコルゲートフィン２、２と
を炉中で加熱する事により、この伝熱管１とコルゲート
フィン２、２とをろう付けする。Thereafter, the heat exchanger tube 1 having the plurality of straight portions 3, 3 and the plurality of corrugated fins 2, 2 are arranged horizontally with the plurality of straight portions 3, 3 in the state shown in FIG. By heating these heat transfer tubes 1 and corrugated fins 2, 2 in a furnace with the edges to which polybutene is attached facing upward, the heat transfer tubes 1 and corrugated fins 2, 2 are soldered. Attach.
【００２３】この結果、残渣を生じる事なく、伝熱管１
の直線部３、３とコルゲートフィン２、２との接触部が
良好にろう付けされる事は、前述の通りである。As a result, the heat exchanger tube 1 can be removed without producing any residue.
As described above, the contact portions between the straight portions 3, 3 and the corrugated fins 2, 2 are well brazed.
【００２４】次に、図２は本発明の第二実施例を示して
いる。本実施例の場合、ノズル１１の各下端開口部に流
量調整弁１２、１２を設けている。即ち、前記分配器９
（図１）から押し出されたポリブテンが各ノズル開口か
ら吐出する量は、流路長さ等によって微妙に異なる為、
各流量調整弁１２、１２を調整する事により、各ノズル
開口から吐出されるポリブテンの量が、互いに等しくな
る様にしている。Next, FIG. 2 shows a second embodiment of the present invention. In the case of this embodiment, flow rate regulating valves 12, 12 are provided at each lower end opening of the nozzle 11. That is, the distributor 9
(Figure 1) The amount of polybutene extruded from each nozzle opening varies slightly depending on the channel length, etc.
By adjusting each flow rate regulating valve 12, 12, the amount of polybutene discharged from each nozzle opening is made equal to each other.
【００２５】尚、本発明の対象となるアルミニウム製熱
交換器には、冷凍サイクル用のエバポレータ、コンデン
サ、エンジンの冷却サイクル用のラジエータ等、種々の
ものが含まれる。The aluminum heat exchangers to which the present invention is applied include various types such as evaporators for refrigeration cycles, condensers, and radiators for engine cooling cycles.
【００２６】[0026]
【発明の効果】本発明のアルミニウム製熱交換器の伝熱
管とフィンとのろう付け方法は、以上に述べた通り構成
され作用するが、フラックスの使用量を少なく抑えて残
渣の発生を防止し、しかも伝熱管とフィンとのろう付け
性を向上させられる為、熱交換性能の優れたアルミニウ
ム製熱交換器を安価に製作出来る。[Effects of the Invention] The method of brazing the heat exchanger tubes and fins of an aluminum heat exchanger according to the present invention is constructed and operates as described above, but the amount of flux used is kept low and the generation of residue is prevented. Moreover, since the brazing performance between the heat transfer tube and the fins can be improved, an aluminum heat exchanger with excellent heat exchange performance can be manufactured at a low cost.
【図１】本発明のろう付け方法を実施するに就いて、伝
熱管にフラックスを分散させたポリブテンを付着させる
状態を示す部分縦断面図。FIG. 1 is a partial vertical sectional view showing a state in which polybutene in which flux is dispersed is attached to a heat exchanger tube in carrying out the brazing method of the present invention.
【図２】同じく別例を示す、図１のＡ部に相当する図。FIG. 2 is a diagram corresponding to part A in FIG. 1, also showing another example.
【図３】従来のろう付け方法の第１例を示す斜視図。FIG. 3 is a perspective view showing a first example of a conventional brazing method.
【図４】同じく第２例を示す斜視図。FIG. 4 is a perspective view showing a second example.
１ 伝熱管 ２ コルゲートフィン ３ 直線部 ４ 湾曲部 ５ 湾曲部 ６ 容器 ７ 液 ８ スプレーノズル ９ 分配器 １０ 供給管 １１ ノズル １２ 流量調整弁 1 Heat exchanger tube 2 Corrugated fin 3 Straight section 4 Curved part 5 Curved part 6 Container 7. Liquid 8 Spray nozzle 9 Distributor 10 Supply pipe 11 Nozzle 12 Flow rate adjustment valve
Claims (1)
の直線部同士の間にコルゲートフィンを挟持した後、上
記複数の直線部を水平方向に配列した状態で、上記複数
の直線部と同ピッチで設けられた、直線部と同数のノズ
ル開口より、フラックスを分散させたポリブテンを吐出
して、このポリブテンを各直線部の上縁に付着させた後
、上記複数の直線部を有する伝熱管と複数のコルゲート
フィンとを、上記複数の直線部を水平方向に配列し、且
つポリブテンが付着した縁を上方に位置させた状態で、
これら伝熱管とコルゲートフィンとを炉中で加熱する事
により、この伝熱管とコルゲートフィンとをろう付けす
る、アルミニウム製熱交換器の伝熱管とフィンとのろう
付け方法。Claim 1: After a corrugated fin is sandwiched between a plurality of parallel straight sections provided on a heat transfer tube, a corrugated fin is placed between the plurality of straight sections arranged in a horizontal direction, and then Polybutene with flux dispersed in it is discharged from nozzle openings of the same number as the straight sections provided at pitches, and this polybutene is adhered to the upper edge of each straight section, and then the heat exchanger tube having the plurality of straight sections is formed. and a plurality of corrugated fins, with the plurality of straight portions arranged horizontally and the edges to which polybutene is attached positioned upward,
A method for brazing heat exchanger tubes and fins of an aluminum heat exchanger, in which the heat exchanger tubes and corrugate fins are brazed by heating them in a furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03152127A JP3090716B2 (en) | 1991-05-29 | 1991-05-29 | Brazing method for heat transfer tubes and fins of aluminum heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03152127A JP3090716B2 (en) | 1991-05-29 | 1991-05-29 | Brazing method for heat transfer tubes and fins of aluminum heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04351267A true JPH04351267A (en) | 1992-12-07 |
| JP3090716B2 JP3090716B2 (en) | 2000-09-25 |
Family
ID=15533654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03152127A Expired - Fee Related JP3090716B2 (en) | 1991-05-29 | 1991-05-29 | Brazing method for heat transfer tubes and fins of aluminum heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3090716B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6199750B1 (en) | 1998-08-25 | 2001-03-13 | Calsonic Kansei Corporation | Method of manufacturing core of heat exchanger |
| US6325276B1 (en) | 1998-07-29 | 2001-12-04 | Calsonic Kansei Corporation | Method and apparatus for applying flux for use in brazing aluminum material |
| CN111331213A (en) * | 2018-12-18 | 2020-06-26 | 中核建中核燃料元件有限公司 | Brazing method for pipe seat under fuel assembly space curved surface structure |
-
1991
- 1991-05-29 JP JP03152127A patent/JP3090716B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6325276B1 (en) | 1998-07-29 | 2001-12-04 | Calsonic Kansei Corporation | Method and apparatus for applying flux for use in brazing aluminum material |
| US6783056B2 (en) | 1998-07-29 | 2004-08-31 | Calsonic Kansei Corporation | Method and apparatus for applying flux for use in brazing aluminum material |
| US6199750B1 (en) | 1998-08-25 | 2001-03-13 | Calsonic Kansei Corporation | Method of manufacturing core of heat exchanger |
| CN111331213A (en) * | 2018-12-18 | 2020-06-26 | 中核建中核燃料元件有限公司 | Brazing method for pipe seat under fuel assembly space curved surface structure |
| CN111331213B (en) * | 2018-12-18 | 2022-03-08 | 中核建中核燃料元件有限公司 | Brazing method for pipe seat under fuel assembly space curved surface structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3090716B2 (en) | 2000-09-25 |
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