JPS62230474A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPS62230474A JPS62230474A JP7466686A JP7466686A JPS62230474A JP S62230474 A JPS62230474 A JP S62230474A JP 7466686 A JP7466686 A JP 7466686A JP 7466686 A JP7466686 A JP 7466686A JP S62230474 A JPS62230474 A JP S62230474A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- brazing
- thermal spraying
- fins
- spraying
- 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
- 238000005219 brazing Methods 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000007751 thermal spraying Methods 0.000 claims abstract description 11
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 11
- 239000002184 metal Substances 0.000 abstract description 11
- 239000000945 filler Substances 0.000 abstract description 10
- 229910000679 solder Inorganic materials 0.000 abstract description 8
- 239000010935 stainless steel Substances 0.000 abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 8
- 125000006850 spacer group Chemical group 0.000 abstract description 6
- 239000000843 powder Substances 0.000 abstract description 3
- 238000007750 plasma spraying Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 239000010953 base metal Substances 0.000 abstract 2
- 150000002739 metals Chemical class 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 18
- 230000007797 corrosion Effects 0.000 description 9
- 238000005260 corrosion Methods 0.000 description 9
- 229910052759 nickel Inorganic materials 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、熱交換器に係り、特に排熱回収分野や水冷
式のラジェーター、コンデンサなど高温環境下や腐食し
やすい条件下で使用されるステンレス製、特殊耐熱鋼製
、銅製等の熱交換器に関する。[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to heat exchangers, particularly those used in the field of waste heat recovery, water-cooled radiators, condensers, etc. in high-temperature environments or under conditions that are prone to corrosion. Regarding heat exchangers made of stainless steel, special heat-resistant steel, copper, etc.
例えば、一般のアルミニウム製プレートフィン型熱交換
器は、高温における強度低下や水による腐食などの問題
を生じるため、排熱回収分野や水冷式のラジェーター、
コンデンサ等に使用することが困難である。従って、こ
の種の分野には従来より耐熱性および耐食性に優れたス
テンレス製。For example, general aluminum plate-fin type heat exchangers have problems such as strength loss at high temperatures and corrosion due to water, so they are used in the waste heat recovery field, water-cooled radiators, etc.
Difficult to use in capacitors, etc. Therefore, stainless steel, which has superior heat resistance and corrosion resistance, is used in this type of field.
特殊耐熱鋼製（クロム−モリブデン鋼や高コバルト鋼等
）、銅製などの熱交換器が使用されるが、これらの耐熱
耐食用熱交換器は、ろう材にも高温での耐熱強度および
耐食性に優れたものを用いる必要があり、一般にはニッ
ケルろうが用いられている。Heat exchangers made of special heat-resistant steel (chromium-molybdenum steel, high cobalt steel, etc.) or copper are used, but these heat-resistant and corrosion-resistant heat exchangers are made of brazing material that has high heat-resistant strength and corrosion resistance at high temperatures. It is necessary to use a superior material, and nickel solder is generally used.
ステンレス製等の耐熱耐食用熱交換器は、上記ニッケル
ろうを、ろう付は部分の形状に合わせて形成し、これを
ろう付は部分に予め挿入しておいてから炉内にて熱交換
器全体を加熱する、いわゆる装置ｉろう付は方式」によ
って一体にろう付けされている。For heat and corrosion resistant heat exchangers made of stainless steel, etc., the above-mentioned nickel solder is formed to match the shape of the brazing part, and this is inserted into the brazing part in advance before being inserted into the heat exchanger in a furnace. The entire body is heated using the so-called "apparatus i brazing" method.
然しなから、上記従来の耐熱耐食用熱交換器は、ろう付
けに使用するニッケルろうが粉末状であるため、これを
ろう付番す部分の形状に合わせて成形するのが非常に困
難であり、置きろうをするのに相当な手間と時間を要す
るという問題がある。最近では、溶融ニッケル合金を急
冷薄体化したシ−ト状のアモルファス・ニッケルろうも
開発されているが、これはシート厚が極めて薄いもの（
〜５０μ）しか製造できないため、二枚重ねや三枚重ね
にして成形しなければならず、やはり置きろうをするの
に相当な手間を要し、しかも高価であることから実用的
とは言い難い。However, in the conventional heat-resistant and corrosion-resistant heat exchanger described above, the nickel solder used for brazing is in powder form, so it is extremely difficult to mold it to match the shape of the part to be brazed. , there is a problem in that it takes considerable effort and time to place it. Recently, a sheet-shaped amorphous nickel solder made by rapidly cooling and thinning a molten nickel alloy has been developed, but this is an extremely thin sheet (
Since only ~50μ) can be manufactured, it is necessary to mold them in two or three layers, which requires a considerable amount of effort to place, and is expensive, so it is difficult to say that it is practical.
本発明は、このような実情に鑑みなされたもので、ニッ
ケルろうのような粉末ろうを使用し、面倒な置きろう作
業を必要とするろう付けが、プレージングシート並みの
手軽さで行える熱交換器を提供しようとするものである
。The present invention was developed in view of these circumstances, and is a heat exchanger that uses a powdered solder such as nickel solder and can perform brazing that requires troublesome brazing work with the same ease as using a plating sheet. It is an attempt to provide a vessel.
以下、本発明を実施例に対応する第１図を用いて説明す
ると、本発明の熱交換器は、ろう付けにて一体接合され
る熱交換器のろう材（４）が、母材（２）表面に非酸化
性雰囲気溶射により形成されていることを特徴とする。Hereinafter, the present invention will be explained using FIG. 1 corresponding to an embodiment. ) It is characterized by being formed on the surface by thermal spraying in a non-oxidizing atmosphere.
〔作 用〕
上記構成によれば、ニッケルろうのような粉末ろう材は
、予め溶射装置で溶融され、溶射ガンによって、ろう付
けしようとする母材（２）表面に皮膜状に溶射される。[Function] According to the above structure, a powder brazing material such as nickel brazing material is melted in advance in a thermal spraying device, and is thermally sprayed into a film on the surface of the base material (2) to be brazed by a thermal spray gun.
従って、この被溶射母材（２）を他の母材（１）と組み
合わせて熱交換器に組み立てた後、熱交換器全体をろう
材（４）の溶融温度以上に加熱するだけで、母材（２）
表面の溶射皮膜が溶けて母材（１） （２）同士がろう
付けされる。Therefore, after assembling this base material (2) to be sprayed with another base material (1) into a heat exchanger, the entire heat exchanger can be heated to a temperature higher than the melting temperature of the brazing filler metal (4). Material (2)
The sprayed coating on the surface melts and the base materials (1) and (2) are brazed together.
また溶射皮膜は、ろう付けに必要な最少限の厚さに制御
することができ、ろう材（４）量の無駄を防止すること
ができる。Moreover, the sprayed coating can be controlled to the minimum thickness necessary for brazing, and the amount of brazing material (4) can be prevented from being wasted.
以下図面に基づき本発明の詳細な説明する。The present invention will be described in detail below based on the drawings.
第１図は本発明に係る熱交換器の一例である。 FIG. 1 is an example of a heat exchanger according to the present invention.
同図に示す熱交換器は、プレートフィン型熱交換器であ
り、同図（イ）に示すように、交互に直交させて数段に
積み重ねられる流体通路形成用のコルゲートフィン（１
）・・・と、上記各コルゲートフィン（１）・・・間に
介挿される板状のセパレートプレート（２）・・・と、
前記各コルゲートフィン（１）・・・の左右側面部に当
接され、上下セパレートプレート（２）・・・間に嵌挿
されるスペーサーバー（３） （３）・・・とで構成さ
れ、これらの各部はいずれもステンレスｍ（ＳＯ５３０
４）で形成されている。そして、同図（ロ）に示すよう
に、前記の各セパレートプレート（２）・・・を被溶射
母材として、その両面に予めニッケルろう材（４） （
４）の溶射皮膜を形成し、これをコルゲートフィン（１
）・・・およびスペーサーバー（３） （３）・・・と
組み合わせて熱交換器に形成した後、真空炉内で熱交換
器全体を加熱することにより、一体にろう付けしたもの
である。The heat exchanger shown in the figure is a plate-fin type heat exchanger, and as shown in the figure (a), corrugated fins (1
)... and each of the above-mentioned corrugated fins (1)... and a plate-shaped separate plate (2) inserted between them.
It is composed of spacer bars (3) (3) that are in contact with the left and right side surfaces of each of the corrugated fins (1) and that are inserted between the upper and lower separate plates (2). All parts are made of stainless steel (SO530
4). Then, as shown in the same figure (b), each of the above-mentioned separate plates (2)... is used as a base material to be thermally sprayed, and nickel brazing material (4) (
4) is formed, and this is applied to the corrugated fin (1).
)... and spacer bars (3) (3)... are combined to form a heat exchanger, and then the entire heat exchanger is heated in a vacuum furnace and brazed together.
なお、前記溶射は、溶射材料をプラズマジェットによる
炎で溶融するプラズマ溶射装置を使用し、溶射の際、皮
膜の厚さが５０−１００μ程度となるように制御しなが
ら行った。溶射材料はニッケル系ろう材とし、気孔の減
少、変質を防止するため非酸化性雰囲気中で溶射を行っ
た。また、被溶射母材（２）は薄板であるので、エツチ
ングにて密着性を向上させた。ろう付は条件は、加熱保
持温度１１５０℃、加熱保持時間５〜ｌｏ分、炉内圧力
１０−’Ｔ。The thermal spraying was carried out using a plasma spraying device that melts the thermal spraying material with a flame generated by a plasma jet, and was controlled so that the thickness of the coating was approximately 50 to 100 μm. The thermal spraying material was a nickel-based brazing filler metal, and thermal spraying was carried out in a non-oxidizing atmosphere to prevent pore reduction and deterioration. Furthermore, since the base material to be thermally sprayed (2) is a thin plate, the adhesion was improved by etching. The conditions for brazing were a heating and holding temperature of 1150°C, a heating and holding time of 5 to 10 minutes, and a furnace pressure of 10-'T.
ｒｒであった。It was rr.
ろう付は完了後、上記熱交換器のろう付は各部を調査し
た結果、安定した継手部が形成されており、本発明の熱
交換器が従来のこの種の熱交換器と遜色のないろう付は
強度を備えていることが判明した。After the brazing was completed, we investigated each part of the heat exchanger and found that a stable joint was formed and that the heat exchanger of the present invention was comparable to conventional heat exchangers of this type. It was found that the attachment has strength.
第２図は本発明の他の実施例であり、プレートフィン型
熱交換器のステンレス鋼または銅製のコルケートフィン
（１）・・・を被溶射母材として、その両面にろう材（
４） （４）の溶射皮膜を形成し、ステンレス鋼または
銅製のセパレートプレート（２）・・・およびスペーサ
ーバー（３） （３）と組み合わせた後、加熱して一体
にろう付けしたものである。Fig. 2 shows another embodiment of the present invention, in which corrugated fins (1) made of stainless steel or copper of a plate fin type heat exchanger are used as the base material to be thermally sprayed, and the brazing filler metal (
4) After forming the thermal spray coating in (4) and combining it with stainless steel or copper separate plates (2)... and spacer bars (3) (3), they are heated and brazed together. .
プレートフィン型熱交換器において、コルゲートフィン
（１）をろう材の被溶射母材とした場合には、セパレー
トプレート（２）の表面にろう材（４）の材質と適合性
のよい材料（５）をクラフトしておくことができ、これ
によりろう付は性を向上させることができる０例えば、
図示例のプレートフィン型熱交換器は、ステンレス鋼ま
たは銅製の耐熱耐食用熱交換器であるが、セパレートプ
レート（２）の両面にアルミニウム材料（５） （５）
をクラ、２ドすることにより、コルゲートフィン（１）
に２容射するろう材（４） （４）が通常のアルミニウ
ムろうであっても、必要な耐熱強度と耐食性を確保する
ことが可能である。In a plate-fin type heat exchanger, when the corrugated fins (1) are used as the base material to which the brazing material is sprayed, a material (5) that is compatible with the material of the brazing material (4) is coated on the surface of the separate plate (2). ), which can improve brazing performance. For example,
The illustrated plate-fin type heat exchanger is a heat-resistant and corrosion-resistant heat exchanger made of stainless steel or copper.
Corrugated fin (1) by cla, 2 de
Even if the brazing filler metal (4) (4) is a normal aluminum brazing filler metal, it is possible to ensure the necessary heat resistance strength and corrosion resistance.
第３図および第４図は、いずれもフィンチューブ型熱交
換器に本発明を実施したもので、第３図に示す熱交換器
は、チューブ（６）の外面にろう材（４）の溶射皮膜を
形成して、フィン（７）・・・と一体にろう付けした一
例、第４図に示す熱交換器は、フィン（７）の表面にろ
う材（４）の溶射皮膜を形成して、チューブ（６）と一
体にろう付けした一例である。3 and 4 show fin-tube heat exchangers in which the present invention is applied. The heat exchanger shown in FIG. An example of a heat exchanger shown in Fig. 4 in which a film is formed and brazed integrally with the fins (7) is a heat exchanger in which a sprayed film of brazing material (4) is formed on the surface of the fins (7). , is an example in which it is integrally brazed with the tube (6).
以上に説明したとおり、本発明の熱交換器は、ろう材が
溶射皮膜として母材の表面に形成されるから、ニッケル
ろうのような粉末状のろう材を必要とする場合でも面倒
な置きろう作業を全く必要とせず、プレージングシート
と同様の手軽さでろう付けを行うことができる。As explained above, in the heat exchanger of the present invention, the brazing filler metal is formed on the surface of the base material as a thermally sprayed coating, so even when powdered brazing filler metal such as nickel brazing is required, there is no need for troublesome installation. No work is required and brazing can be done as easily as with plating sheets.
第１図〜第４図は、いずれも本発明に係る熱交換器の一
例を説明し、第１図（イ）はプレートフィン型熱交換器
の分解斜視図、同図（ロ）は要部断面図、第２図は第１
図の他の実施例を説明する要部断面図、第３図はフィン
チューブ型熱交換器の斜視図、第４図は第３図の他の実
施例を説明する斜視図である。
ｌニコルゲートフィン、２：セパレートプレート、３ニ
スペーサ−バー、４：ろう材（溶射皮［）６：チューブ
５７：フィン
出 願 人 住友精密工業株式会社
出 願 人 住友金属工業株式会社 １２、代理人
弁理士 生 形 元 重 ′代理人弁理士
吉 １）正 二１．。
ｊ：）ｊ’：、：”：”ｊ
第２図
第４図
第 １ ＠1 to 4 illustrate an example of a heat exchanger according to the present invention, and FIG. 1 (A) is an exploded perspective view of a plate-fin type heat exchanger, and FIG. Cross-sectional view, Figure 2 is the 1st
FIG. 3 is a perspective view of a fin-tube heat exchanger, and FIG. 4 is a perspective view of another embodiment of FIG. 3. 1 Nicol gate fin, 2: Separate plate, 3 Spacer bar, 4: Brazing filler metal (sprayed skin) 6: Tube 57: Fin Applicant: Sumitomo Precision Industries, Ltd. Applicant: Sumitomo Metal Industries, Ltd. 12. Agent Patent Attorney Motoju ``Representative Patent Attorney
Yoshi 1) Positive 21. . j:)j':, :”:”j Figure 2 Figure 4 Figure 1 @
Claims (1)
が、母材表面に非酸化性雰囲気溶射により形成されてい
ることを特徴とする熱交換器。(1) A heat exchanger characterized in that the brazing material of the heat exchanger that is integrally joined by brazing is formed on the surface of the base material by thermal spraying in a non-oxidizing atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7466686A JPS62230474A (en) | 1986-03-31 | 1986-03-31 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7466686A JPS62230474A (en) | 1986-03-31 | 1986-03-31 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62230474A true JPS62230474A (en) | 1987-10-09 |
Family
ID=13553784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7466686A Pending JPS62230474A (en) | 1986-03-31 | 1986-03-31 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62230474A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6448667A (en) * | 1987-08-18 | 1989-02-23 | Showa Aircraft Ind | Production of honeycomb structure |
| JP2005098617A (en) * | 2003-09-25 | 2005-04-14 | Japan Atom Energy Res Inst | Laminated structure strengthening method by two-layer brazing and soldering |
| JP2007507355A (en) * | 2003-10-06 | 2007-03-29 | ルバタ オサケ ユキチュア | Thermal spray coating of brazing material to produce heat transfer devices |
| JP2013516573A (en) * | 2010-01-08 | 2013-05-13 | アロイス・ヴォベン | Wind power plant |
-
1986
- 1986-03-31 JP JP7466686A patent/JPS62230474A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6448667A (en) * | 1987-08-18 | 1989-02-23 | Showa Aircraft Ind | Production of honeycomb structure |
| JP2005098617A (en) * | 2003-09-25 | 2005-04-14 | Japan Atom Energy Res Inst | Laminated structure strengthening method by two-layer brazing and soldering |
| JP2007507355A (en) * | 2003-10-06 | 2007-03-29 | ルバタ オサケ ユキチュア | Thermal spray coating of brazing material to produce heat transfer devices |
| JP2013516573A (en) * | 2010-01-08 | 2013-05-13 | アロイス・ヴォベン | Wind power plant |
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