JPH08313181A - Heat exchanger and manufacture thereof - Google Patents
Heat exchanger and manufacture thereofInfo
- Publication number
- JPH08313181A JPH08313181A JP12171295A JP12171295A JPH08313181A JP H08313181 A JPH08313181 A JP H08313181A JP 12171295 A JP12171295 A JP 12171295A JP 12171295 A JP12171295 A JP 12171295A JP H08313181 A JPH08313181 A JP H08313181A
- Authority
- JP
- Japan
- Prior art keywords
- spiral fin
- heat transfer
- transfer tube
- heat exchanger
- combination
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、たとえば自動変速機
や手動変速機の作動オイル用のオイルクーラ、駆動ファ
ンの作動オイル用のオイルクーラ等として使用される熱
交換器およびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger used as an oil cooler for working oil of an automatic transmission or a manual transmission, an oil cooler for working oil of a drive fan, and a method for manufacturing the same.
【０００２】この明細書において、「アルミニウム」と
いう語には、純アルミニウムの他にアルミニウム合金を
含むものとする。In this specification, the term "aluminum" includes aluminum alloy in addition to pure aluminum.
【０００３】[0003]
【従来の技術】この種熱交換器として、従来、アルミニ
ウム製伝熱管の周囲にアルミニウム製らせん状フィンが
配され、フィンの内周縁が伝熱管の外周面にろう付によ
り接合されているものが知られている。この熱交換器に
おいては、らせん状フィンの内周縁は滑らかなつる巻き
線状である。また、この熱交換器は、たとえばアルミニ
ウム製帯状板を伝熱管の周囲にらせん状に巻き付けた
後、伝熱管とらせん状フィンとを接合することにより製
造されていた。2. Description of the Related Art As a heat exchanger of this type, conventionally, aluminum spiral fins are arranged around an aluminum heat transfer tube, and the inner peripheral edge of the fin is joined to the outer peripheral surface of the heat transfer tube by brazing. Are known. In this heat exchanger, the inner peripheral edge of the spiral fin has a smooth spiral winding shape. Further, this heat exchanger has been manufactured by, for example, spirally winding an aluminum strip plate around the heat transfer tube and then joining the heat transfer tube and the spiral fin.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
熱交換器では、フィンと伝熱管との接合長さが比較的短
く、両者の接合強度が十分ではないという問題があっ
た。However, the conventional heat exchanger has a problem that the joint length between the fin and the heat transfer tube is relatively short, and the joint strength between the two is not sufficient.
【０００５】この発明の目的は、上記問題を解決した熱
交換器およびその製造方法を提供することにある。An object of the present invention is to provide a heat exchanger and a method for manufacturing the same that solve the above problems.
【０００６】[0006]
【課題を解決するための手段】この発明による熱交換器
は、伝熱管の周囲にらせん状フィンが配され、フィンの
内周縁が伝熱管の外周面に接合されている熱交換器にお
いて、らせん状フィンの少なくとも内周縁部が、その厚
さ方向に交互に屈曲されて径方向内方から見て波状とな
されているものである。A heat exchanger according to the present invention is a heat exchanger in which a spiral fin is arranged around a heat transfer tube, and an inner peripheral edge of the fin is joined to an outer peripheral surface of the heat transfer tube. At least the inner peripheral edge portion of the fin is bent alternately in the thickness direction thereof to have a wavy shape when viewed from the inside in the radial direction.
【０００７】この発明による第１の熱交換器の製造方法
は、少なくとも内周縁部が、その厚さ方向に交互に屈曲
されて径方向内方から見て波状となされているアルミニ
ウム製らせん状フィンを、アルミニウム製伝熱管の周囲
に配すること、伝熱管とらせん状フィンとの組み合わせ
体を、らせん状フィンの軸線が上下方向を向いた姿勢に
すること、ハロゲン化亜鉛を主成分とするスラリー状接
合剤を組み合わせ体に吹き付けること、ならびにスラリ
ー状接合剤を加熱して伝熱管の外周面にらせん状フィン
を接合することよりなるものである。In the first method for manufacturing a heat exchanger according to the present invention, at least the inner peripheral edge portion is alternately bent in the thickness direction and is corrugated when viewed from the inside in the radial direction. Around the heat transfer tube made of aluminum, the combination of the heat transfer tube and the spiral fin is oriented such that the axis of the spiral fin is oriented vertically, and a slurry containing zinc halide as the main component It consists of spraying the bonding agent on the combination, and heating the slurry bonding agent to bond the spiral fins to the outer peripheral surface of the heat transfer tube.
【０００８】この発明による第２の熱交換器の製造方法
は、少なくとも内周縁部が、その厚さ方向に交互に屈曲
されて径方向内方から見て波状となされているアルミニ
ウムブレージングシート製らせん状フィンを、アルミニ
ウム製伝熱管の周囲に配すること、伝熱管とらせん状フ
ィンとの組み合わせ体を、らせん状フィンの軸線が上下
方向を向いた姿勢にすること、スラリー状フラックスを
組み合わせ体に吹き付けること、ならびに組み合わせ体
を加熱して伝熱管の外周面にらせん状フィンを接合する
ことよりなるものである。In the second method for manufacturing a heat exchanger according to the present invention, at least the inner peripheral edge portion is alternately bent in the thickness direction thereof and is corrugated when viewed from the inside in the radial direction. Place the fins around the aluminum heat transfer tube, orient the combination of the heat transfer tube and the spiral fin so that the axis of the spiral fin is in the vertical direction, and combine the slurry-like flux into the combination. It consists of spraying and heating the combination to bond the spiral fins to the outer peripheral surface of the heat transfer tube.
【０００９】この発明による第３の熱交換器の製造方法
は、少なくとも内周縁部が、その厚さ方向に交互に屈曲
されて径方向内方から見て波状となされているアルミニ
ウムブレージングシート製らせん状フィンを、アルミニ
ウム製伝熱管の周囲に配すること、伝熱管とらせん状フ
ィンとの組み合わせ体を、らせん状フィンの軸線が上下
方向を向いた姿勢にすること、ろう材粉末を液状バイン
ダに分散させてなる分散液を組み合わせ体に吹き付ける
こと、スラリー状フラックスを組み合わせ体に吹き付け
ること、ならびに組み合わせ体を加熱して伝熱管の外周
面にらせん状フィンを接合することよりなるものであ
る。In the third heat exchanger manufacturing method according to the present invention, at least the inner peripheral edge portion is alternately bent in the thickness direction and is corrugated when viewed from the inside in the radial direction. Place the fins around the aluminum heat transfer tube, orient the combination of the heat transfer tube and the spiral fin so that the axis of the spiral fin is oriented vertically, and use the brazing powder as a liquid binder. It consists of spraying the dispersion liquid that has been dispersed onto the combination, spraying a slurry-like flux onto the combination, and heating the combination to bond the spiral fins to the outer peripheral surface of the heat transfer tube.
【００１０】[0010]
【作用】この発明の熱交換器によれば、らせん状フィン
の少なくとも内周縁部が、その厚さ方向に交互に屈曲さ
れて径方向内方から見て波状となされているので、伝熱
管の外周面とらせん状フィンとの接合長さが長くなり、
その結果伝熱管とらせん状フィンとの接合強度が、従来
のものに比べて増大する。According to the heat exchanger of the present invention, at least the inner peripheral edge portion of the spiral fin is alternately bent in the thickness direction and is wavy when viewed from the inside in the radial direction. The joint length between the outer peripheral surface and the spiral fin becomes longer,
As a result, the joint strength between the heat transfer tube and the spiral fin is increased as compared with the conventional one.
【００１１】この発明の第１の熱交換器の製造方法によ
れば、組み合わせ体に吹き付けたスラリー状接合剤が、
らせん状フィンに沿って下方に流れるので、スラリー状
接合剤が、伝熱管の外周面とらせん状フィンの内周縁と
の接触部の全体に均一に行き渡る。しかも、伝熱管の外
周面とらせん状フィンの内周縁との接触部の全体に均一
に行き渡ったスラリー状接合剤は、らせん状フィンの波
状部分で保持される。しかも、製造された熱交換器の伝
熱管およびらせん状フィンの表面に亜鉛層が形成され
る。According to the first heat exchanger manufacturing method of the present invention, the slurry-like bonding agent sprayed onto the combination is
Since it flows downward along the spiral fin, the slurry-like bonding agent is evenly distributed over the entire contact portion between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin. Moreover, the slurry-like bonding agent, which is evenly distributed over the entire contact portion between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin, is held by the corrugated portion of the spiral fin. Moreover, the zinc layer is formed on the surfaces of the heat transfer tubes and the spiral fins of the manufactured heat exchanger.
【００１２】この発明の第２の熱交換器の製造方法によ
れば、組み合わせ体に吹き付けたスラリー状フラックス
が、らせん状フィンに沿って下方に流れるので、スラリ
ー状フラックスが、伝熱管の外周面とらせん状フィンの
内周縁との接触部の全体に均一に行き渡る。しかも、伝
熱管の外周面とらせん状フィンの内周縁との接触部の全
体に均一に行き渡ったスラリー状フラックスは、らせん
状フィンの波状部分で保持される。According to the second heat exchanger manufacturing method of the present invention, since the slurry-like flux sprayed on the combined body flows downward along the spiral fins, the slurry-like flux becomes the outer peripheral surface of the heat transfer tube. The entire area of contact with the inner peripheral edge of the spiral fin is evenly distributed. Moreover, the slurry-like flux uniformly distributed over the entire contact portion between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin is held by the wavy portion of the spiral fin.
【００１３】この発明の第３の熱交換器の製造方法によ
れば、組み合わせ体に吹き付けたろう材粉末を含む分散
液およびスラリー状フラックスが、らせん状フィンに沿
って下方に流れるので、ろう材粉末を含む分散液および
スラリー状フラックスが、伝熱管の外周面とらせん状フ
ィンの内周縁との接触部の全体に均一に行き渡る。しか
も、伝熱管の外周面とらせん状フィンの内周縁との接触
部の全体に均一に行き渡ったろう材粉末を含む分散液お
よびスラリー状フラックスは、らせん状フィンの波状部
分で保持される。According to the third method for manufacturing a heat exchanger of the present invention, the dispersion liquid containing the brazing material powder and the slurry-like flux sprayed on the combination flow downward along the spiral fins. Dispersion liquid and slurry-like flux containing Hg are evenly distributed over the entire contact area between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin. Moreover, the dispersion liquid and the slurry flux containing the brazing filler metal powder, which are evenly distributed over the entire contact portion between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin, are held by the wavy portion of the spiral fin.
【００１４】[0014]
【実施例】以下、この発明の実施例を、図面を参照して
説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１５】図１〜図３はこの発明による熱交換器を示
し、図４はこの発明による熱交換器の製造方法を示す。1 to 3 show a heat exchanger according to the present invention, and FIG. 4 shows a manufacturing method of the heat exchanger according to the present invention.
【００１６】図１において、熱交換器(1) は、アルミニ
ウム製伝熱管(2) の周囲に、アルミニウム製らせん状フ
ィン(3) が配され、らせん状フィン(3) の内周縁が伝熱
管(2) の外周面に接合されたものである。In FIG. 1, the heat exchanger (1) has an aluminum heat transfer tube (2) around which aluminum spiral fins (3) are arranged, and the inner peripheral edge of the spiral fin (3) is a heat transfer tube. It is joined to the outer peripheral surface of (2).
【００１７】伝熱管(2) は、両端から所定距離をおいた
部分で略９０度屈曲させられている。伝熱管(2) の長さ
の中間部の直管部を(2a)で示し、両端の屈曲部を(2b)で
示す。屈曲部(2b)の先端は縮径されている。縮径部を(2
c)で示す。伝熱管(2) の内周面には、縮径部(2c)を除い
て、その長さ方向に伸びかつ内周面からの突出高さの異
なる２種のインナーフィン(4)(5)が一体に形成されてい
る。The heat transfer tube (2) is bent at about 90 degrees at a portion spaced a predetermined distance from both ends. The straight tube portion at the middle of the length of the heat transfer tube (2) is indicated by (2a), and the bent portions at both ends are indicated by (2b). The tip of the bent portion (2b) has a reduced diameter. Reduce the diameter to (2
Shown in c). On the inner peripheral surface of the heat transfer tube (2), except for the reduced diameter portion (2c), two kinds of inner fins (4) (5) that extend in the length direction and have different protrusion heights from the inner peripheral surface. Are integrally formed.
【００１８】らせん状フィン(3) の内周縁部は、その厚
さ方向に交互に屈曲されて径方向内方から見て波状とな
されている。したがって、伝熱管(2) の外周面とらせん
状フィン(3) との接合長さが、波状となされていない従
来のものと比べて長くなっている。The inner peripheral edge portion of the spiral fin (3) is alternately bent in the thickness direction and has a wavy shape when viewed from the inside in the radial direction. Therefore, the joint length between the outer peripheral surface of the heat transfer tube (2) and the spiral fin (3) is longer than that of the conventional one which is not wavy.
【００１９】熱交換器は、図２に示すようにして製造さ
れる。The heat exchanger is manufactured as shown in FIG.
【００２０】まず、内周面に、内周面からの突出高さの
異なる２種のインナーフィン(4)(5)が一体に形成された
アルミニウム押出形材製伝熱管(2) 、および一側縁部が
厚さ方向に交互に屈曲されて波状とされているアルミニ
ウム製帯状板(10)を用意する。ついで、伝熱管(2) の両
端部のインナーフィン(4)(5)を所定長さにわたって切除
するとともに、この部分に縮径部(2c)を形成する。つい
で、帯状板(10)を、上記一側縁部側が内周側に来るよう
に、伝熱管(2) の長さの中間部の周囲にらせん状に巻き
付けてらせん状フィン(3) とする（図２(a) および(b)
参照）。ついで、伝熱管(2) の両端部を所定長さにわた
って屈曲し、直管部(2a)と屈曲部(2b)を形成する。つい
で、伝熱管(2) とらせん状フィン(3) との組み合わせ体
(11)を、伝熱管(2) の直管部(2a)、すなわちらせん状フ
ィン(3) の軸線が上下方向を向いた姿勢にする。つい
で、塩化亜鉛を主成分とするスラリー状接合剤(12)を組
み合わせ体(11)に吹き付ける（図２(c) 参照）。このス
ラリー状接合剤(12)は公知のものであり（たとえば特公
昭４９−３６８６４号参照）、詳細な説明は省略する。
吹き付けられたスラリー状接合剤(12)はらせん状フィン
(3) に沿って下方に流れるので、スラリー状接合剤(12)
が、伝熱管(2) の外周面とらせん状フィン(3)の内周縁
との接触部の全体に均一に行き渡る。しかも、伝熱管
(2) の外周面とらせん状フィン(3) の内周縁との接触部
の全体に均一に行き渡ったスラリー状接合剤(12)は、ら
せん状フィン(3) の波状部分で保持される。その後、ス
ラリー状接合剤(12)を加熱し、これにより生じた亜鉛を
主成分とするフィレットにより伝熱管(2) の外周面にら
せん状フィン(3) の内周縁を接合する。こうして、熱交
換器(1) が製造される。製造された熱交換器(1) の伝熱
管(2) の外周面およびらせん状フィン(3) の表面には亜
鉛層が形成される。First, a heat transfer tube (2) made of an extruded aluminum material, which is integrally formed with two kinds of inner fins (4) and (5) having different projecting heights from the inner peripheral surface, and An aluminum strip plate (10) whose side edges are alternately bent in the thickness direction to have a wavy shape is prepared. Then, the inner fins (4) and (5) at both ends of the heat transfer tube (2) are cut off over a predetermined length, and a reduced diameter portion (2c) is formed at this portion. Then, the strip plate (10) is spirally wound around the middle part of the length of the heat transfer tube (2) so that the one side edge side is on the inner peripheral side to form a spiral fin (3). (Fig. 2 (a) and (b)
reference). Next, both ends of the heat transfer tube (2) are bent over a predetermined length to form a straight pipe section (2a) and a bent section (2b). Then, the combination of the heat transfer tube (2) and the spiral fin (3)
(11) is in a posture in which the straight pipe portion (2a) of the heat transfer pipe (2), that is, the axis of the spiral fin (3) is oriented in the up-down direction. Then, a slurry-like bonding agent (12) containing zinc chloride as a main component is sprayed onto the combined body (11) (see FIG. 2 (c)). This slurry bonding agent (12) is a known one (for example, see Japanese Patent Publication No. 49-36864), and its detailed description is omitted.
Sprayed slurry bonding agent (12) spiral fin
As it flows downwards along (3), the slurry-like bonding agent (12)
Of the heat transfer tube (2) uniformly spreads over the entire contact area between the outer peripheral surface of the heat transfer tube (2) and the inner peripheral edge of the spiral fin (3). Moreover, heat transfer tube
The slurry-like bonding agent (12) uniformly distributed over the entire contact portion between the outer peripheral surface of (2) and the inner peripheral edge of the spiral fin (3) is retained by the corrugated portion of the spiral fin (3). After that, the slurry bonding agent (12) is heated, and the inner periphery of the spiral fin (3) is bonded to the outer peripheral surface of the heat transfer tube (2) by the fillet containing zinc as a main component. In this way, the heat exchanger (1) is manufactured. A zinc layer is formed on the outer peripheral surface of the heat transfer tube (2) and the surface of the spiral fin (3) of the manufactured heat exchanger (1).
【００２１】熱交換器(1) は、また、次の方法によって
も製造される。The heat exchanger (1) is also manufactured by the following method.
【００２２】この第２の方法の場合、帯状板としてアル
ミニウムブレージングシート製のものを用いること、ス
ラリー状接合剤の代わりにスラリー状フラックス、たと
えばスラリー状の弗化物系フラックスを用いること、お
よび組み合わせ体(11)全体を加熱することを除いては、
上述した方法と同様にして熱交換器(1) が製造される。In the case of the second method, a strip plate made of aluminum brazing sheet is used, a slurry-like flux is used instead of the slurry-like bonding agent, for example, a slurry-like fluoride-based flux, and a combination body. (11) Except for heating the whole,
The heat exchanger (1) is manufactured by the same method as described above.
【００２３】熱交換器(1) は、さらに、次の方法によっ
ても製造される。The heat exchanger (1) is also manufactured by the following method.
【００２４】この第３の方法の場合、スラリー状接合剤
を吹き付ける代わりに、ろう材粉末を液状バインダに分
散させてなる分散液を組み合わせ体に吹き付けた後、ス
ラリー状フラックスを組み合わせ体に吹き付けること、
および組み合わせ体(11)全体を加熱することを除いて
は、上述した第１の方法と同様にして熱交換器(1) が製
造される。In the case of the third method, instead of spraying the slurry-like bonding agent, a dispersion liquid obtained by dispersing a brazing filler metal powder in a liquid binder is sprayed on the combination body, and then a slurry-like flux is sprayed on the combination body. ,
And the heat exchanger (1) is manufactured in the same manner as the first method described above except that the whole combination (11) is heated.
【００２５】上記３つの熱交換器の製造方法において
は、伝熱管の周囲に帯状板をらせん状に巻き付けてらせ
ん状フィンとしているが、これに代えて、予めらせん状
フィンを形成しておき、これを伝熱管の周囲に嵌め被せ
てもよい。In the above three heat exchanger manufacturing methods, a band-shaped plate is spirally wound around the heat transfer tube to form a spiral fin, but instead of this, a spiral fin is formed in advance, This may be fitted and covered around the heat transfer tube.
【００２６】[0026]
【発明の効果】この発明の熱交換器によれば、上述のよ
うに、伝熱管の外周面とらせん状フィンとの接合長さが
長くなるので、伝熱管とらせん状フィンとの接合強度
が、従来のものに比べて増大する。According to the heat exchanger of the present invention, as described above, since the joint length between the outer peripheral surface of the heat transfer tube and the spiral fin is increased, the joint strength between the heat transfer tube and the spiral fin is increased. , Increased compared to conventional ones.
【００２７】この発明の第１の熱交換器の製造方法によ
れば、スラリー状接合剤が、伝熱管の外周面と巻き付け
られたらせん状フィンの内周縁との接触部の全体に均一
に行き渡るとともに、伝熱管の外周面とらせん状フィン
の内周縁との接触部の全体に均一に行き渡ったスラリー
状接合剤は、らせん状フィンの波状部分で保持されるの
で、らせん状フィンと伝熱管との接合が確実かつ強固に
行われる。しかも、製造された熱交換器の伝熱管および
らせん状フィンの表面に亜鉛層が形成されるので、耐食
性に優れた製品が得られる。According to the first heat exchanger manufacturing method of the present invention, the slurry-like bonding agent is evenly distributed over the entire contact portion between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin. At the same time, the slurry-like bonding agent that has spread evenly over the entire contact area between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin is held by the wavy portion of the spiral fin, so The joining is surely and firmly performed. Moreover, since the zinc layer is formed on the surfaces of the heat transfer tube and the spiral fin of the manufactured heat exchanger, a product having excellent corrosion resistance can be obtained.
【００２８】この発明の第２の熱交換器の製造方法によ
れば、スラリー状フラックスが、伝熱管の外周面と巻き
付けられたらせん状フィンの内周縁との接触部の全体に
均一に行き渡るとともに、伝熱管の外周面とらせん状フ
ィンの内周縁との接触部の全体に均一に行き渡ったスラ
リー状フラックスは、らせん状フィンの波状部分で保持
されるので、らせん状フィンと伝熱管とのろう付による
接合が確実かつ強固に行われる。According to the second heat exchanger manufacturing method of the present invention, the slurry-like flux is evenly distributed over the entire contact portion between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin. , The slurry-like flux that has spread evenly over the entire contact area between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin is retained by the wavy portion of the spiral fin, so that the spiral fin and the heat transfer tube Bonding by attachment is performed securely and firmly.
【００２９】この発明の第３の熱交換器の製造方法によ
れば、ろう材粉末を含む分散液およびスラリー状フラッ
クスが、伝熱管の外周面と巻き付けられたらせん状フィ
ンの内周縁との接触部の全体に均一に行き渡るととも
に、伝熱管の外周面とらせん状フィンの内周縁との接触
部の全体に均一に行き渡ったろう材粉末を含む分散液お
よびスラリー状フラックスは、らせん状フィンの波状部
分で保持されるので、らせん状フィンと伝熱管とのろう
付による接合が確実かつ強固に行われる。According to the third method for manufacturing a heat exchanger of the present invention, the dispersion liquid containing the brazing material powder and the slurry-like flux come into contact with the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin. Dispersion liquid and slurry flux containing the brazing filler metal powder, which is distributed evenly over the whole of the contact area between the outer peripheral surface of the heat transfer tube and the inner peripheral edge of the spiral fin, is the wavy portion of the spiral fin. Since the spiral fins and the heat transfer tubes are brazed, they are securely and firmly held.
【図１】この発明による熱交換器の実施例を示す一部切
欠き斜視図である。FIG. 1 is a partially cutaway perspective view showing an embodiment of a heat exchanger according to the present invention.
【図２】図１のII−II線拡大断面図である。FIG. 2 is an enlarged sectional view taken along line II-II in FIG.
【図３】図２のIII −III 線断面図である。3 is a sectional view taken along line III-III in FIG.
【図４】この発明の熱交換器の製造方法の実施例を工程
順に示す図である。FIG. 4 is a diagram showing an embodiment of the method of manufacturing the heat exchanger according to the present invention in the order of steps.
(1) 熱交換器 (2) 伝熱管 (3) らせん状フィン (10) 帯状板 (11) 組み合わせ体 (12) スラリー状接合剤 (1) Heat exchanger (2) Heat transfer tube (3) Spiral fin (10) Strip plate (11) Combination (12) Slurry binder
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２３Ｋ 1/00 ３３０ Ｂ２３Ｋ 1/00 ３３０Ｋ 1/19 1/19 Ｆ 3/00 3/00 Ｓ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B23K 1/00 330 B23K 1/00 330K 1/19 1/19 F 3/00 3/00 S
Claims (4)
れ、フィンの内周縁が伝熱管の外周面に接合されている
熱交換器において、 らせん状フィンの少なくとも内周縁部が、その厚さ方向
に交互に屈曲されて径方向内方から見て波状となされて
いる熱交換器。1. In a heat exchanger in which spiral fins are arranged around a heat transfer tube, and the inner peripheral edge of the fin is joined to the outer peripheral surface of the heat transfer tube, at least the inner peripheral edge portion of the spiral fin has a thickness A heat exchanger that is bent in an alternating direction and has a wavy shape when viewed from the inside in the radial direction.
交互に屈曲されて径方向内方から見て波状となされてい
るアルミニウム製らせん状フィンを、アルミニウム製伝
熱管の周囲に配すること、伝熱管とらせん状フィンとの
組み合わせ体を、らせん状フィンの軸線が上下方向を向
いた姿勢にすること、ハロゲン化亜鉛を主成分とするス
ラリー状接合剤を組み合わせ体に吹き付けること、なら
びにスラリー状接合剤を加熱して伝熱管の外周面にらせ
ん状フィンを接合することよりなる熱交換器の製造方
法。2. A spiral fin made of aluminum, at least the inner peripheral portion of which is alternately bent in the thickness direction and has a wave shape when viewed from the inside in the radial direction, is arranged around the aluminum heat transfer tube. , Setting the combination of the heat transfer tube and the spiral fin in a posture in which the axis of the spiral fin is oriented in the vertical direction, spraying a slurry bonding agent containing zinc halide as a main component onto the combination, and slurry A method for manufacturing a heat exchanger, which comprises heating a cylindrical bonding agent to bond a spiral fin to the outer peripheral surface of a heat transfer tube.
交互に屈曲されて径方向内方から見て波状となされてい
るアルミニウムブレージングシート製らせん状フィン
を、アルミニウム製伝熱管の周囲に配すること、伝熱管
とらせん状フィンとの組み合わせ体を、らせん状フィン
の軸線が上下方向を向いた姿勢にすること、スラリー状
フラックスを組み合わせ体に吹き付けること、ならびに
組み合わせ体を加熱して伝熱管の外周面にらせん状フィ
ンを接合することよりなる熱交換器の製造方法。3. A spiral fin made of an aluminum brazing sheet, in which at least an inner peripheral edge portion is alternately bent in the thickness direction and has a wavy shape when viewed from the inside in the radial direction, is arranged around the aluminum heat transfer tube. The combination of the heat transfer tube and the spiral fin in a posture in which the axis of the spiral fin is oriented vertically, spraying a slurry flux onto the combination, and heating the combination to heat transfer the tube. A method for manufacturing a heat exchanger, which comprises joining a spiral fin to the outer peripheral surface of the.
交互に屈曲されて径方向内方から見て波状となされてい
るアルミニウムブレージングシート製らせん状フィン
を、アルミニウム製伝熱管の周囲に配すること、伝熱管
とらせん状フィンとの組み合わせ体を、らせん状フィン
の軸線が上下方向を向いた姿勢にすること、ろう材粉末
を液状バインダに分散させてなる分散液を組み合わせ体
に吹き付けること、スラリー状フラックスを組み合わせ
体に吹き付けること、ならびに組み合わせ体を加熱して
伝熱管の外周面にらせん状フィンを接合することよりな
る熱交換器の製造方法。4. A spiral fin made of an aluminum brazing sheet, in which at least an inner peripheral edge portion is alternately bent in the thickness direction and has a wavy shape when viewed from the inside in the radial direction, is arranged around the aluminum heat transfer tube. Doing so that the combination of the heat transfer tube and the spiral fin is in a posture in which the axis of the spiral fin is oriented vertically, and spraying a dispersion liquid of brazing filler metal powder in a liquid binder onto the combination. A method for manufacturing a heat exchanger, which comprises spraying a slurry-like flux onto a combination, and heating the combination to bond a spiral fin to the outer peripheral surface of a heat transfer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12171295A JP2920736B2 (en) | 1995-05-19 | 1995-05-19 | Heat exchanger manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12171295A JP2920736B2 (en) | 1995-05-19 | 1995-05-19 | Heat exchanger manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08313181A true JPH08313181A (en) | 1996-11-29 |
| JP2920736B2 JP2920736B2 (en) | 1999-07-19 |
Family
ID=14818018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12171295A Expired - Fee Related JP2920736B2 (en) | 1995-05-19 | 1995-05-19 | Heat exchanger manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2920736B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100395620B1 (en) * | 2001-02-20 | 2003-08-25 | 위성점 | Condenser for air conditioner |
| JP2005098666A (en) * | 2003-09-01 | 2005-04-14 | Usui Kokusai Sangyo Kaisha Ltd | Heat transfer tube with fin member |
| CN114322042A (en) * | 2021-12-29 | 2022-04-12 | 安徽科恩新能源有限公司 | Waste heat recovery system of geothermal plus regional energy station |
-
1995
- 1995-05-19 JP JP12171295A patent/JP2920736B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100395620B1 (en) * | 2001-02-20 | 2003-08-25 | 위성점 | Condenser for air conditioner |
| JP2005098666A (en) * | 2003-09-01 | 2005-04-14 | Usui Kokusai Sangyo Kaisha Ltd | Heat transfer tube with fin member |
| CN114322042A (en) * | 2021-12-29 | 2022-04-12 | 安徽科恩新能源有限公司 | Waste heat recovery system of geothermal plus regional energy station |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2920736B2 (en) | 1999-07-19 |
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