JPS61165268A - Method for manufacturing heat exchanger elements - Google Patents
Method for manufacturing heat exchanger elementsInfo
- Publication number
- JPS61165268A JPS61165268A JP673385A JP673385A JPS61165268A JP S61165268 A JPS61165268 A JP S61165268A JP 673385 A JP673385 A JP 673385A JP 673385 A JP673385 A JP 673385A JP S61165268 A JPS61165268 A JP S61165268A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- flux
- heat exchanger
- entire surface
- plates
- 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
- 238000000034 method Methods 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 47
- 150000003839 salts Chemical class 0.000 claims abstract description 25
- 230000004907 flux Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000007935 neutral effect Effects 0.000 claims abstract description 6
- 230000001590 oxidative effect Effects 0.000 claims abstract description 6
- 238000007747 plating Methods 0.000 claims description 14
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000005219 brazing Methods 0.000 abstract description 12
- 238000003466 welding Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007665 sagging Methods 0.000 abstract description 4
- 238000007598 dipping method Methods 0.000 abstract description 2
- 235000010333 potassium nitrate Nutrition 0.000 abstract description 2
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000004299 exfoliation Methods 0.000 abstract 1
- 235000010344 sodium nitrate Nutrition 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000005304 joining Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- 229910000680 Aluminized steel Inorganic materials 0.000 description 1
- 108091006629 SLC13A2 Proteins 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000003841 chloride salts Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Coating With Molten Metal (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はプレート式熱交換器エレメントの製造方法に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing plate heat exchanger elements.
従来の技術
安価なＳＳｉ材を用いて第６図に示すようなプレート状
熱交換器エレメント（Ｅ）や、多管式シェルあるいはチ
ューブ方式の熱交換器を製造する場合、従来、シーム溶
接、突合せ溶接、すみ肉溶接等によって接合する方法が
採用されていたが、熱交換器が高性能化する程高密度化
し、プレート数やチューブの数が多くなって接合作業が
難しく高価なものになるという問題があった。Conventional technology When manufacturing a plate-shaped heat exchanger element (E) as shown in Fig. 6, a multi-tubular shell or tube type heat exchanger using inexpensive SSi material, seam welding and butt welding are conventional methods. Previously, joining methods such as welding and fillet welding were used, but as heat exchangers become more sophisticated, they become denser and the number of plates and tubes increases, making joining work difficult and expensive. There was a problem.
そこで、接合をロウ付げによって行なうと、一度の熱処
理で全ての接合が完了するという利点があり、特に、小
型の熱交換器の場合、真空加熱炉が利用できることもあ
り、ロウ付は方式が一般的に採用されている。Therefore, the advantage of joining by brazing is that all the joining can be completed with a single heat treatment.Especially in the case of small heat exchangers, vacuum heating furnaces can be used, and brazing is an alternative method. Generally adopted.
発明が解決しようとする問題点
しかし、ロウ付けの場合、接合面にロウ材（粉末、箔）
をはさみこんで加圧、加熱を行なうため、非常に手間が
かかるという問題があった。Problems that the invention aims to solve However, in the case of brazing, brazing material (powder, foil) is used on the joint surface.
There was a problem in that it was very time-consuming because it was sandwiched together and then pressurized and heated.
一方、アルミニウムは耐酸化、耐蝕性に優れた金属で、
鋼材にアルミニウムをメッキする場合、コスト面で有利
なことから溶融状態のアルミニウムに浸漬してメッキす
る方法が工業化されている。On the other hand, aluminum is a metal with excellent oxidation and corrosion resistance.
When plating steel with aluminum, a method of plating by immersing the steel in molten aluminum has been industrialized because it is advantageous in terms of cost.
本発明は、このアルミニウム浸漬を利用することによっ
て、ロウ付けとアルミニウムメッキを同時に行ない、安
価で耐蝕性にすぐれた熱交換器を製造することができる
熱交換器エレメントの製造方法を提供することを目的と
する。The present invention aims to provide a method for manufacturing a heat exchanger element that uses this aluminum immersion to simultaneously perform brazing and aluminum plating to manufacture a heat exchanger that is inexpensive and has excellent corrosion resistance. purpose.
問題を解決するための手段
上記問題を解決するため、本発明の熱交換器エレメント
の製造方法は、２枚のプレートと該プレート間の間隙に
配設される波板材を多層状に仮固定配置してなる熱交換
器エレメントを、フラックス内に浸漬してフラックス処
理するとともに予備加熱する工程と、フラックス処理さ
れた前記エレメントをアルミニウム浴槽でアルミニウム
メッキまたはアルミニウム合金メッキ処理する行程と、
アル主ニウムメッキまたはアルミニウム合金メッキ処理
された前記エレメントを非酸化性の中性低温溶融塩内で
冷却する行程とから構成したものである。Means for Solving the Problem In order to solve the above problem, the method for manufacturing a heat exchanger element of the present invention temporarily fixes two plates and a corrugated sheet material disposed in the gap between the plates in a multilayered manner. a step of immersing the heat exchanger element in flux to perform flux treatment and preheating; and a step of aluminum plating or aluminum alloy plating of the fluxed element in an aluminum bath;
This process consists of cooling the element, which has been plated with aluminum or aluminum alloy, in a non-oxidizing, neutral, low-temperature molten salt.
作用
熱交換器エレメントは、アルミニウム浴槽に浸漬される
ことによって、表面がメッキ処理されると同時にプレー
トとプレート間の波板材とがロウ付けされ、その後、溶
融塩中で冷却するので、空気に比べて熱伝導性良く均質
に冷却されることでひずみが少なくなるとともに、酸化
反応を押えることができる。The working heat exchanger element is immersed in an aluminum bath so that the surface is plated and at the same time the plates and the corrugated sheet material between the plates are brazed, and then cooled in molten salt, so it is less expensive than air. By cooling uniformly with good thermal conductivity, distortion is reduced and oxidation reactions can be suppressed.
実施例
以下、本発明の一実施例を第１図と第２図に基づいて説
明する。EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 and 2.
第１図は熱交換器エレメントの製造方法を示す図、第２
図は本発明の方法によって製造された熱交換器エレメン
トの要部の断面図である。Figure 1 is a diagram showing the manufacturing method of the heat exchanger element, Figure 2 is a diagram showing the manufacturing method of the heat exchanger element.
The figure is a cross-sectional view of the main parts of a heat exchanger element manufactured by the method of the present invention.
第１図において、（１）はフラックス槽で、核種（１）
内には温度が６００℃でＡＩ！Ｆ３とＫＦからなるフラ
ックス（２）が満たされている。In Figure 1, (1) is the flux tank, and the nuclide (1)
The temperature inside is 600℃ and AI! Flux (2) consisting of F3 and KF is filled.
（３）はアルミニウム浴槽で、核種（３）内には温度７
００°Ｃに加熱された純アルミニウム（４）（ＪＩＳＩ
種９９種子９）が満たされている。(3) is an aluminum bath, and the nuclide (3) has a temperature of 7
Pure aluminum (4) heated to 00°C (JISI
Seed 99 Seed 9) is filled.
（５）は冷却槽で、核種（５）内には非酸化性で中性の
低温溶融塩（６）、図示例のものでは、ＫＮＯ３とＮａ
ＮＯ３からなる溶融塩（市販熱処理用溶融塩ＡＳ１４０
）を温度８００℃に加熱したものが満たされている。(5) is a cooling tank, and the nuclide (5) contains a non-oxidizing and neutral low-temperature molten salt (6), and in the illustrated example, KNO3 and Na
Molten salt consisting of NO3 (commercially available molten salt for heat treatment AS140
) is heated to a temperature of 800°C.
（７）は熱交換器エレメントで、これは、２枚のプレー
ト（８） （８）と該プレート（８）（８）間の間隙に
配設される波板材（９）を多層状に仮固定配置してなり
、図示例のものでは、上下方向多層に積み重ねたエレメ
ント（７）をケージＱＯ内に載置するものとしている。(7) is a heat exchanger element, which is made up of two plates (8) (8) and a corrugated sheet material (9) disposed in the gap between the plates (8) (8) in a multilayered structure. In the illustrated example, elements (7) stacked in multiple layers in the vertical direction are placed in the cage QO.
ケージＯｏ内に載置された熱交換器エレメント（７）は
、フラックス槽（１）内のフラックス（２）に浸漬され
て１０分間保持され、これにより、エレメント（７）表
面の酸化被膜（さび）が分解除去されるとともに、表面
に酸化防止膜が形成される。The heat exchanger element (7) placed in the cage Oo is immersed in the flux (2) in the flux tank (1) and held for 10 minutes, thereby removing the oxide film (rust) on the surface of the element (7). ) is decomposed and removed, and an anti-oxidation film is formed on the surface.
フラックス槽（１）から引き揚げられたケージ００は、
アルミニウム浴槽（３）内の純アルミニウム（４）に浸
填されて１分間保持され、これにより、エレメント（７
）表面がアルミニウムメッキ処理されるとともに、第２
図に示すように、波板材（９）とプレート（８）（８）
とがアルミニウムによってロウ付けされる。αＤはロウ
付は部である。The cage 00 pulled out of the flux tank (1) is
The element (7) is immersed in pure aluminum (4) in an aluminum bath (3) and held for 1 minute.
) The surface is aluminum plated, and the second
As shown in the figure, corrugated sheet material (9) and plate (8) (8)
and are brazed with aluminum. αD is the soldering part.
アルミニウム浴槽（３）から引き揚げられたケージ顛は
、すぐに、冷却槽（５）内の溶融塩（６）に浸漬されて
５分間保持される。これにより、アルミニウムメッキ後
のエレメント（７）は溶融塩（６）で冷却されるが、溶
融塩（６）は空気に比べて熱伝導性が良いため、エレメ
ント（７）は均一に冷却されてひずみが少なく、かつ、
酸化を防止できる。さらに、アルミニウム（比重２．７
）に対して比重２〜２．５の溶融塩（６）による浮力が
作用するので、タレの発生が少なくアルミニウムは均一
に付着する。さらに、溶融塩（６）から引き揚げられた
後も、エレメント（７）表面のメッキ部やロウ付は部Ｑ
ｌ）のアルミニウムは、溶融塩（６）の薄膜に保護され
て空気による酸化が防止され、酸化反応による発熱がな
い。The cage frame lifted from the aluminum bath (3) is immediately immersed in molten salt (6) in the cooling bath (5) and held for 5 minutes. As a result, the element (7) after aluminum plating is cooled by the molten salt (6), but since the molten salt (6) has better thermal conductivity than air, the element (7) is cooled uniformly. Less distortion, and
Can prevent oxidation. Furthermore, aluminum (specific gravity 2.7
) is acted on by the buoyancy of the molten salt (6) with a specific gravity of 2 to 2.5, so there is little sagging and the aluminum adheres uniformly. Furthermore, even after being pulled up from the molten salt (6), the plating and brazing parts on the surface of the element (7) remain intact.
The aluminum (1) is protected by a thin film of molten salt (6) and is prevented from being oxidized by air, and no heat is generated due to oxidation reaction.
この場合、簡単な構造ならば、第４図に示すように、槽
υに温度７００°Ｃの純アルミニウム（至）とフラック
スα荀とを入れ、この槽（２）内にエレメント（７）を
浸漬する一浴法も考えられる。しかし、一般的に複雑な
薄肉構造物である場合、アルミニウムの均一性、熱ひず
みなどを考慮して、第５図に示すように二浴法が考えら
れる。この二浴法では、第１槽αｅ内の高温フラックス
（１１でエレメント（７）をフラックス処理するととも
に、予備加熱し、第２槽０η内の純アルミニウム（至）
のそれぞれの温度、浸漬時間をコントロールすることで
正確で均一な品質のメッキとロウ付けをすることができ
る。しかし、アルミニウムメッキ処理は６８０〜７２０
℃の高温で行なうことが必要であり、さらに、アルニウ
ムは活性に富んだ金属であるから、第２槽（１カから引
き揚げられると空気中の酸素と反応して酸化、発熱する
。この場合、薄肉のものならば急速に空気で冷やされ。In this case, if the structure is simple, as shown in Fig. 4, pure aluminum at a temperature of 700°C and flux α are placed in a tank υ, and an element (7) is placed in this tank (2). A one-bath method of immersion is also considered. However, in the case of complex thin-walled structures, a two-bath method as shown in FIG. 5 can be considered, taking into consideration the uniformity of aluminum, thermal strain, etc. In this two-bath method, high-temperature flux (element (7) in step 11 in the first tank αe is preheated, and pure aluminum in the second tank 0η is flux-treated).
By controlling the temperature and dipping time of each, it is possible to perform plating and brazing with accurate and uniform quality. However, aluminum plating treatment is 680-720
It is necessary to carry out the process at a high temperature of °C.Furthermore, since aluminum is a highly active metal, when it is removed from the second tank (1 tank), it reacts with oxygen in the air and oxidizes and generates heat. If it is thin-walled, it will be rapidly cooled by air.
表面が固化し酸化熱はほとんど問題にならないが、厚肉
で放熱の悪い複雑な構造物では酸化時に発生した熱は容
易に放熱されず、エレメント（７）は長時間高温状態と
なり、表面のアルミニウムが、基材との反応や空気によ
る酸化で無くなる、いわゆる′やけ′の現象がみられ、
最悪の場合燃えてしまって製品にならなくなったり、ひ
ずみが大きくなったりする。また、第２槽ａカから引き
揚げると重力によってアルミニウムのタレが発生し、上
部は薄（下部程厚くなって均質でなくなり、下部ではエ
レメント、孔などの口塞りが発生しやすくなる等の不都
合が起りやすく、熱交換器エレメントのような複雑なも
のには適さない。The surface solidifies and the oxidation heat becomes almost no problem, but in complex structures with thick walls and poor heat dissipation, the heat generated during oxidation is not easily dissipated, and the element (7) remains at a high temperature for a long time, causing the aluminum on the surface to However, a so-called ``scorch'' phenomenon, which disappears due to reaction with the base material or oxidation by air, is observed.
In the worst case scenario, the product may burn out and become unusable, or the product may become severely distorted. In addition, when the aluminum is pulled out of the second tank A, gravity causes the aluminum to sag, and the upper part is thinner (the lower it becomes thicker and less homogeneous, and the lower parts are prone to clogging of elements, holes, etc.). This tends to occur, making it unsuitable for complex items such as heat exchanger elements.
また、上記ではメッキおよびロー付材として純アルミニ
ウムを使用したが、Ａｌ−Ｓｉ合金（Ｓｉ： ７〜１２
重量％）や１重量％以下のＣｕまたはＺｎを添加された
ｋｌ−３ｉ系合金からなるロー材でも可能である。この
合金は共晶温度が約５７７℃と低いためより低温でメッ
キされるから熱ひずみの発生が少く、また合金属（Ｆｅ
−Ａｌからなるη相）が非常に薄くなり、メッキ部やロ
ー付部の耐剥離性が向上する利点がある。In addition, although pure aluminum was used as the plating and brazing material in the above, Al-Si alloy (Si: 7 to 12
It is also possible to use a brazing material made of a kl-3i alloy to which 1% by weight or less of Cu or Zn is added. This alloy has a low eutectic temperature of approximately 577°C, so it is plated at a lower temperature, resulting in less thermal distortion.
- The η phase consisting of Al) becomes extremely thin, which has the advantage of improving the peeling resistance of plated and brazed parts.
なお、溶融アルミニウムメッキ製品を５００〜６００℃
付近で長時間保持すると、第３図に示すように、低温剥
離現象が発生する。そこで、冷却用溶融塩（６）の温度
は５００℃以下が望ましいが、あまり低温すぎると高温
（６８０〜７２０’Ｏ）のアルミニウム浴槽（３）から
引き揚げた製品に熱衝撃が作用し、ひずみ発生するおそ
れがあるため、ａ ｏ ｏ ’ａ以上が望ましい。した
がって、溶融塩（６）はこの温度範囲で溶ける水溶性で
安価なものが経済的で、金属熱処理用溶融塩（ＮａＣ１
、ＫＣＩ 、 ＣａＣ１などの塩化物、硝酸塩、硫酸塩
、炭酸塩を混合したもの）で良い。保短いと均一冷却が
難しく、長すぎると不経済だけでなくアルミニウムが槽
（５）中に溶は出す。In addition, hot-dip aluminum plated products should be heated at 500 to 600℃.
If it is held in the vicinity for a long time, a low-temperature peeling phenomenon occurs as shown in FIG. Therefore, it is desirable that the temperature of the cooling molten salt (6) is 500°C or lower, but if the temperature is too low, thermal shock will act on the product pulled out of the high temperature (680-720'O) aluminum bath (3), causing distortion. Therefore, it is desirable that the value is ao o'a or more. Therefore, it is economical to use a water-soluble and inexpensive molten salt (6) that melts in this temperature range, and a molten salt for metal heat treatment (NaC1
A mixture of chlorides, nitrates, sulfates, carbonates such as , KCI, CaC1) may be used. If it is kept too short, uniform cooling is difficult, and if it is kept too long, not only is it uneconomical, but also aluminum will dissolve into the tank (5).
発明の詳細
な説明したように、本発明によれば、仮固定配置された
熱交換器エレメントをアルミニウム浴槽に浸漬すること
によってエレメント表面をメッキし、メッキと同時にプ
レートとプレート間の波板材とがロウ付けされるので、
真空加熱炉を利用できない大型のエレメントをロウ付け
できるとともに、ロウ材をはさみこむ作業が不要となる
。また、アルミニウム浴槽から出されたエレメントは非
酸化性の中性低温溶融塩内で冷却されるので、均質に冷
やされることでひずみが少なくなるとともに、溶融塩の
薄膜によりアルミニウムの空気酸化を防止して発熱を押
え、さらに、アルミニウムに対して溶融塩の浮力が作用
するため、アルミニウムのタレの発生が少なく均一なメ
ッキが可能である。DETAILED DESCRIPTION OF THE INVENTION According to the present invention, the temporarily fixed heat exchanger element is immersed in an aluminum bath to plate the element surface, and at the same time as plating, the corrugated sheet material between the plates is plated. Because it is soldered,
It is possible to braze large elements for which a vacuum heating furnace cannot be used, and the work of sandwiching brazing metal is not required. In addition, since the element taken out of the aluminum bath is cooled in a non-oxidizing, neutral, low temperature molten salt, it is uniformly cooled and has less distortion, and a thin film of molten salt prevents air oxidation of the aluminum. Furthermore, since the buoyancy of the molten salt acts on the aluminum, uniform plating is possible with less sagging of the aluminum.
第１図および第２図は本発明の一実施例を示し、第１図
は熱交換器エレメントの製造方法を示す図、第２図は本
発明の方法によって製造された熱交換器エレメントの要
部拡大断面図、第８図はアルマ−鋼のアルミニウム層が
加熱により剥離を生じ易い温度と時間の範囲を示す図、
第４図は一浴法による製造方法を示す図、第５図は二浴
法による製造方法を示す図、第６図は従来の製造方法に
よってつくられた熱交換器エレメントを例示する外観図
である。1 and 2 show an embodiment of the present invention, FIG. 1 is a diagram showing a method for manufacturing a heat exchanger element, and FIG. 2 is a diagram showing an outline of a heat exchanger element manufactured by the method of the present invention. Fig. 8 is a diagram showing the temperature and time range at which the aluminum layer of aluminized steel tends to peel off due to heating;
Figure 4 is a diagram showing a manufacturing method using a one-bath method, Figure 5 is a diagram showing a manufacturing method using a two-bath method, and Figure 6 is an external view illustrating a heat exchanger element manufactured by a conventional manufacturing method. be.
Claims (1)
波板材を多層状に仮固定配置してなる熱交換器エレメン
トを、フラックス内に浸漬してフラックス処理するとと
もに予備加熱する工程と、フラックス処理された前記エ
レメントをアルミニウム浴槽でアルミニウムメッキまた
はアルミニウム合金メッキ処理する行程と、アルミニウ
ムメッキまたはアルミニウム合金メッキ処理された前記
エレメントを非酸化性の中性低温溶融塩内で冷却する行
程とからなることを特徴とする熱交換器エレメントの製
造方法。1. A heat exchanger element formed by temporarily fixing one or two plates and a corrugated sheet material disposed in the gap between the plates in a multi-layered manner is immersed in flux to undergo flux treatment and preheating. , a step of aluminum plating or aluminum alloy plating of the flux-treated element in an aluminum bath; and a step of cooling the aluminum-plated or aluminum alloy-plated element in a non-oxidizing neutral low-temperature molten salt. A method for manufacturing a heat exchanger element, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP673385A JPS61165268A (en) | 1985-01-17 | 1985-01-17 | Method for manufacturing heat exchanger elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP673385A JPS61165268A (en) | 1985-01-17 | 1985-01-17 | Method for manufacturing heat exchanger elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61165268A true JPS61165268A (en) | 1986-07-25 |
Family
ID=11646424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP673385A Pending JPS61165268A (en) | 1985-01-17 | 1985-01-17 | Method for manufacturing heat exchanger elements |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61165268A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1440759A1 (en) * | 2003-01-27 | 2004-07-28 | Balcke-Dürr GmbH | Method for manufacturing a heat exchanger |
| US9108261B1 (en) * | 2011-07-27 | 2015-08-18 | Cooper Technologies Company | LED lighting heat sink and housing construction made by oven brazing technique |
| CN110785243A (en) * | 2018-05-31 | 2020-02-11 | 亚进产业株式会社 | Multi-chamber type heating unit |
-
1985
- 1985-01-17 JP JP673385A patent/JPS61165268A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1440759A1 (en) * | 2003-01-27 | 2004-07-28 | Balcke-Dürr GmbH | Method for manufacturing a heat exchanger |
| US9108261B1 (en) * | 2011-07-27 | 2015-08-18 | Cooper Technologies Company | LED lighting heat sink and housing construction made by oven brazing technique |
| CN110785243A (en) * | 2018-05-31 | 2020-02-11 | 亚进产业株式会社 | Multi-chamber type heating unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2094189C1 (en) | Method of connection of zinc-coated aluminium members and heat exchanger manufactured using this method | |
| KR100756752B1 (en) | A brazing sheet product and a method for manufacturing an assembly using the brazing sheet product | |
| US6379818B1 (en) | Brazing sheet product and method of its manufacture | |
| AU2002224816B2 (en) | Brazing product having a low melting point | |
| US6596413B2 (en) | Brazing product having a low melting point | |
| US3979042A (en) | Vacuum brazing of nickel to aluminum | |
| US3855682A (en) | Method of soldering together an aluminum part and a ferrous or cuprous metal part | |
| AU2002224816A1 (en) | Brazing product having a low melting point | |
| US7056597B2 (en) | Brazing sheet product and method of its manufacture | |
| JPS61165268A (en) | Method for manufacturing heat exchanger elements | |
| CA2508028C (en) | Brazing sheet product having a clad layer and a coated layer of iron alloy and method of its manufacture | |
| US4852791A (en) | Method for making corrosion resistance heat exchangers | |
| MXPA05001025A (en) | Brazing product and method of its manufacture. | |
| US7294411B2 (en) | Brazing product and method of its manufacture | |
| US2872730A (en) | Method of producing finned tubing | |
| JP2006509636A (en) | Brazing sheet product and manufacturing method thereof | |
| JPH05277787A (en) | Material and the joining method for joining heat exchanger parts made of aluminum | |
| JPS6174771A (en) | Production of aluminum heat exchanger | |
| JPH03146264A (en) | Brazing method for aluminum material | |
| JPH03230888A (en) | How to braze aluminum materials | |
| JPS5916666A (en) | Joining method of steel material | |
| JPH0390273A (en) | Low-temperature vapor brazing method for al or al alloy | |
| JPH0232073B2 (en) | ||
| ZA200302871B (en) | Brazing product having a low melting point. | |
| JPS60221584A (en) | Method of burning enamel on steel member and burning furnace |