JPS61179880A - Production of fin material for radiator - Google Patents
Production of fin material for radiatorInfo
- Publication number
- JPS61179880A JPS61179880A JP27746485A JP27746485A JPS61179880A JP S61179880 A JPS61179880 A JP S61179880A JP 27746485 A JP27746485 A JP 27746485A JP 27746485 A JP27746485 A JP 27746485A JP S61179880 A JPS61179880 A JP S61179880A
- Authority
- JP
- Japan
- Prior art keywords
- mixture
- powder
- alloy
- metal
- coated
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ラジェータ用フィン材を経済的に製造する方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for economically producing radiator fin material.
［従来技術とその問題点］
従来ラジェータ用のフィン材としては、ＳｎやＣｄ入り
のＣｕの薄板が使われている。これは、Ｃｕ合金の高い
熱伝導性、良好な加工性、はんだ付は性を活かしたもの
である。[Prior art and its problems] Conventionally, a thin plate of Cu containing Sn or Cd has been used as a fin material for a radiator. This takes advantage of the high thermal conductivity, good workability, and soldering properties of the Cu alloy.
しかし、最近このフィン材の腐食によるラジェータの機
能低下、低寿命化が問題となってきた。However, recently, corrosion of this fin material has caused a problem of decreased functionality and shortened lifespan of the radiator.
これは、海塩粒子による塩害の発生する海岸地帯。This is a coastal area where salt damage occurs due to sea salt particles.
凍結防止剤を散布する寒冷地において激しく発生し、走
行後２年程度で放熱特性が極端に低下し、ラジェータが
寿命となる場合がある。This occurs frequently in cold regions where anti-freezing agents are sprayed, and the heat dissipation characteristics deteriorate extremely after about 2 years of operation, and the radiator may reach the end of its lifespan.
調査したところによると、この腐食は、酸化皮膜として
ＣｕｚＯを層状に形成して行くものであった。According to the investigation, this corrosion resulted in the formation of a layer of CuzO as an oxide film.
これに対処するため、酸化皮膜の密着性の良いＣｕ合金
、あるいはＣｔｌｚＯを形成しにくいＣｕ合金が開発さ
れたが、何れも合金化するため、フィン材に要求される
重要な特性の１つである熱伝導性を極端に害する等の難
点がある。To deal with this, Cu alloys with good oxide film adhesion or Cu alloys that are difficult to form CtlzO have been developed, but since they are alloyed, this is one of the important properties required for fin materials. There are drawbacks such as extremely damaging certain thermal conductivity.
例えばＣＩＪ−Ｎｉ合金は、この種の腐食には極めて高
い耐性を有する合金であるが、熱伝導率が純銅の１／１
０以下となり、また加工性も劣ってくる。For example, CIJ-Ni alloy is an alloy that has extremely high resistance to this type of corrosion, but its thermal conductivity is 1/1 that of pure copper.
0 or less, and processability also deteriorates.
従って、熱伝導率が高く、かつ耐熱性に優れたフィン材
の提供が望まれていた。Therefore, it has been desired to provide a fin material that has high thermal conductivity and excellent heat resistance.
これは、ＧＯまたはＣｕ合金からなる素材の表面に、Ｃ
ｕ以外の金属および／または当該金属の拡散層を設りる
ことによって達成することができる。This is done by adding carbon to the surface of a material made of GO or Cu alloy.
This can be achieved by providing a metal other than u and/or a diffusion layer of the metal.
Ｃｕ以外の金属を素材の表面に被覆する方法としては、
電解、無電解によるメッキ、あるいは蒸着。As a method for coating the surface of a material with a metal other than Cu,
Electrolytic, electroless plating, or vapor deposition.
スパッタリング等を利用できる。Sputtering etc. can be used.
また拡散層を形成する場合には、さらに不活性あるいは
還元性雰囲気中で加熱を行う。これは金属を被覆した直
後でも、被覆復圧延加工を行なってからでもよい。Further, when forming a diffusion layer, heating is further performed in an inert or reducing atmosphere. This may be done immediately after the metal is coated or after the coated back-rolling process is performed.
しかし、電気メッキや無電解メッキでは液組成の制御、
電解条件の厳密な制御が必要であり、被覆しようとする
金属によっては廃液処理も含めて多大な設備費を要する
。また溶融メッキでは７ｎ。However, in electroplating and electroless plating, it is difficult to control the liquid composition.
Strict control of electrolytic conditions is required, and depending on the metal to be coated, large equipment costs are required, including waste liquid treatment. Also, 7n for hot-dip plating.
Ｓｎ等の限られた金属しか被覆することができず、広幅
材に施そうとすると設備的にも膨大なものとなる。Only a limited number of metals such as Sn can be coated, and if a wide material is to be coated, the amount of equipment required will be enormous.
また、蒸着、スパッタリングでは更に効率が悪くなる。Furthermore, the efficiency of vapor deposition and sputtering becomes even worse.
従って、従来技術では金属を工業的に効率的に被覆する
こと自体に問題があり、拡散加熱することを加えれば更
に経済性に問題がある。Therefore, with the prior art, there is a problem in itself in efficiently coating metal industrially, and if diffusion heating is added, there is an even more problem in economic efficiency.
［発明の目的］
本発明は、前記した従来技術の欠点を解消し、銅または
銅合金の表面に異種金属を被覆、拡散させて耐食性１強
度、酸化性、半田付番導性等の機能を向上させた一種の
複合材を経済的に製造する方法を提供することにある。[Object of the invention] The present invention solves the drawbacks of the prior art described above, and coats and diffuses different metals on the surface of copper or copper alloy to provide functions such as corrosion resistance, strength, oxidation resistance, and soldering conductivity. The object of the present invention is to provide a method for economically producing an improved type of composite material.
［発明の概要］
本発明の要旨は、耐食性を熱伝導性に優れたラジェータ
用フィン材を得るために、素材表面に異種金属を被覆す
る方法として、銅または銅合金からなる条素材より低融
点の金属の粉流体と、フラックス作用を有する液状ない
しはベース１−状の物質との混合物を塗布した後、加熱
する方法を採ったことにある。[Summary of the Invention] The gist of the present invention is to provide a radiator fin material with excellent corrosion resistance and thermal conductivity, as a method of coating the surface of the material with a different metal. The method is to apply a mixture of metal powder fluid and a liquid or base substance having a flux action and then to heat the mixture.
ラジェータ用フィン素材としてＣｕおよびＣｕ合金を対
象とすると、被覆材として実用上有効な金属としては、
Ｓｎ、Ｐｂ、Ｚｎ、ＡＪ、Ｎｉ 。Considering Cu and Cu alloys as radiator fin materials, the metals that are practically effective as coating materials are:
Sn, Pb, Zn, AJ, Ni.
Ａｕ、Ｔｅ、Ｂｉ、Ｃｄ、Ｇａ、Ｉｎが選ばれる。Au, Te, Bi, Cd, Ga, and In are selected.
しかし、これらの中の１種または２種以上を主成分とす
るもであれば実用上被覆の効果を発揮するので、そのよ
うな組成物を使用してもよい。However, a composition containing one or more of these as a main component can provide a practical coating effect, and therefore such a composition may be used.
そのような金属の粉粒体と混合す液状ないしはベースト
状の物質は、金属粉粒体を素材表面に塗布する際に粘着
剤として作用するほか、酸化皮膜を除去し、素材表面と
溶融金属との濡れ性を促進する機能を有するものが用い
られる。A liquid or base substance mixed with such metal powder acts as an adhesive when applying the metal powder to the material surface, and also removes the oxide film and bonds the material surface and molten metal. A material having a function of promoting wettability is used.
なお、前記混合物中における金属粉粒体成分は、これが
少ないと条素材表面に金属を均一に被覆することが難し
くなるので、３０％以上とすることが望ましい。The metal powder component in the mixture is desirably 30% or more, since if the amount is small, it will be difficult to uniformly coat the surface of the strip material with metal.
また、前記混合物を塗布する方法としては、様々な方法
が考えられるが、例えばロール表面に混合物を連続的に
付着させながら、ロール間に条素材を通ずことにより塗
布する方法、または条素材の上に適当なりリアランスも
った堰を設けてそこに混合物をためておき、条素材を適
当な速度で動かしながら塗布する方法でもよい。Various methods can be considered for applying the mixture; for example, a method in which the mixture is applied by passing the strip material between rolls while continuously adhering the mixture to the surface of the roll, or a method in which the mixture is applied by passing the strip material between rolls; It is also possible to provide a weir with an appropriate clearance on top, store the mixture there, and apply the mixture while moving the strip material at an appropriate speed.
加熱温度の上限は、理論的には素材の融点以下であれば
よいが、実用的には粉粒体の融点以上であって、素材の
融点より５０℃程度低い温度以下であることが望ましい
。The upper limit of the heating temperature may theoretically be lower than the melting point of the material, but practically it is preferably higher than the melting point of the powder and granules and lower than the melting point of the material by about 50°C.
加熱雰囲気としては、大気及びＮ２．ＣＯＺ。The heating atmosphere includes air and N2. COZ.
Ｃｏ 、Ｈ２、Ａｒガス等が有効である。大気以外の雰
囲気の場合、前記ガス成分の中の１種または２種以上が
５０％以上含まれていれば実用上有効である。Co 2 , H 2 , Ar gas, etc. are effective. In the case of an atmosphere other than the air, it is practically effective if one or more of the above gas components is contained in an amount of 50% or more.
以上のような条件下で塗布、加熱は、素材の表面に塗布
された混合物の層に混入していたフラックス作用を有す
る物質により素材表面の酸化皮膜が除去され、素材表面
と溶融した金属との濡れ性が促進されて素材表面に異種
金属の被覆層が形成される。Coating and heating under the above conditions removes the oxide film on the surface of the material due to the fluxing substance mixed in the layer of the mixture applied to the surface of the material, and creates a bond between the surface of the material and the molten metal. Wettability is promoted and a coating layer of a dissimilar metal is formed on the surface of the material.
この場合、一部拡散層も生成する。In this case, a part of the diffusion layer is also formed.
拡散を促進し素材表面部の合金化をより進めるためには
、別途加熱工程を付加することが望ましい。In order to promote diffusion and further alloying of the surface of the material, it is desirable to add a separate heating step.
［発明の実施例］ 以下本発明の実施例について説明する。[Embodiments of the invention] Examples of the present invention will be described below.
第１図は、条材１の片面に連続的に異種金属の被ｖｉ層
８を形成する場合の例を示し、銅または銅合金からなる
素材１は、上下ロール２の間を通してその表面に、液状
フラックスと金属粉粒体との混合物の薄い層４が塗布さ
れる。ロール２の上側には混合物送給装置３が設訂され
、前記混合物はここからロール２を介して素材１に塗布
される。混合物の層４の厚さは、ロール２のギャップに
よって調整することができる。FIG. 1 shows an example in which a VI layer 8 of different metals is continuously formed on one side of a strip 1. A material 1 made of copper or a copper alloy is passed between upper and lower rolls 2 on its surface. A thin layer 4 of a mixture of liquid flux and metal powder is applied. A mixture feeding device 3 is provided above the roll 2, from which the mixture is applied to the material 1 via the roll 2. The thickness of the layer 4 of the mixture can be adjusted by the gap of the rolls 2.
このようにして混合物の薄い層４が塗布された素材は、
その後不活性ガス雰囲気の加熱装置５で加熱され、フラ
ックスの水洗装置６及び乾燥装置７を通り、片面に異種
金属の薄い被覆層８をもった条材として巻取機９に巻き
取られる。The material to which a thin layer 4 of the mixture has been applied in this way is
Thereafter, it is heated by a heating device 5 in an inert gas atmosphere, passes through a flux washing device 6 and a drying device 7, and is wound up by a winding machine 9 as a strip having a thin coating layer 8 of a different metal on one side.
両面に被［層８を形成する場合には、ロール２における
下側のロールにも混合物を供給して塗布すればよい。When forming the coating layer 8 on both sides, the mixture may be supplied and applied to the lower roll of the roll 2 as well.
次に具体例を説明する。Next, a specific example will be explained.
実施例１
厚さ０．５ｎｍ、幅４５０Ｍの銅条のコイル材を用意し
、第１図に示すような方法により、銅の半田付けに使わ
れる普通の液状フラックスと、Ｓｎの粉末を３ニアの割
合で混合してペースト状にした混合物を塗布し、片面に
厚さ約２０μｍの混合物の層４を形成させた。引続き不
活性ガス雰囲気の加熱装置５に連続的に通板し、５００
’ＣＸ９０秒に相当する熱処理を加え、水洗装置６及び
乾燥装置７を通して巻き取った。Example 1 A copper strip coil material with a thickness of 0.5 nm and a width of 450 m was prepared, and an ordinary liquid flux used for copper soldering and Sn powder were mixed into the coil by the method shown in Figure 1. A paste-like mixture was applied by mixing the mixture at a ratio of 1 to 2 to form a layer 4 of the mixture with a thickness of about 20 μm on one side. Subsequently, the sheet was continuously passed through a heating device 5 in an inert gas atmosphere, and heated to 500 ml.
A heat treatment corresponding to 'CX 90 seconds was applied, and the film was passed through a water washing device 6 and a drying device 7 and wound up.
得られた銅条の表面を詳細に調査した結果、Ｃｕ−３ｎ
合金層と３ｎの被膜が２〜３μｍにわたって形成されて
いることが確認された。As a result of detailed investigation of the surface of the obtained copper strip, Cu-3n
It was confirmed that the alloy layer and the 3N coating were formed over a range of 2 to 3 μm.
耐食性は、２０悶Ｘ１００麿ｘＱ、０５ｍ＋の試料を、
ＪＩＳ Ｚ ２３７１に規定された条件で、塩水墳
霧試験を３０日間行い、表面の腐食生成物を除去した後
、試験片の重量を測定し、試験前後の重囚源を求めて評
価した。第１表にその結果を示す。Corrosion resistance is 20mm x 100mm x Q, 05m+ sample.
A salt water fog test was conducted for 30 days under the conditions stipulated in JIS Z 2371, and after removing surface corrosion products, the weight of the test piece was measured, and the source of severe contamination before and after the test was determined and evaluated. Table 1 shows the results.
第 １ 表 ＊１：加熱処理前の厚さ。Table 1 *1: Thickness before heat treatment.
＊２：熱伝導率の尺度として゛電気伝導率をとった。*2: Electrical conductivity was taken as a measure of thermal conductivity.
実施例２
実施例１と同様の方法で、実施例１と同様の銅条の片面
にＰｂとＳｎが１：１の粉粒体と、液状フラックスとを
７：３の割合で混合したペースト状の混合物の層を形成
し、５００℃Ｘ９０秒に相当する熱処理を加えて巻き取
った。得られた銅条の片面には、Ｐｂ−８ｎ合金層が約
３μの厚さで形成されていることが確認された。Example 2 Using the same method as in Example 1, a paste was prepared by mixing a powder containing Pb and Sn in a ratio of 7:3 with a liquid flux on one side of the same copper strip as in Example 1. A layer of the mixture was formed, heat treated at 500° C. for 90 seconds, and then rolled up. It was confirmed that a Pb-8n alloy layer with a thickness of about 3 μm was formed on one side of the obtained copper strip.
片面をシールして行なった耐食性試験において、５μの
拡散層を有するもので、被膜のないものに比べて約３倍
の耐食性を示した。In a corrosion resistance test conducted with one side sealed, the one with a 5μ diffusion layer showed approximately three times the corrosion resistance of the one without a coating.
実施例３
第１図に示す下側のロール部にも混合物送給装置を配置
し、実施例１と同様の銅条と、混合物を用いて実施例１
と同様に処理し、両面に被覆層を有する銅条を得た。Example 3 A mixture feeding device was also arranged in the lower roll part shown in FIG.
A copper strip having coating layers on both sides was obtained in the same manner as above.
得られた銅条の両面には、Ｃｕ−３ｎ合金層と、３ｎの
皮膜が２〜３μｍの厚さで形成されていることが確認さ
れた。It was confirmed that a Cu-3n alloy layer and a 3n film with a thickness of 2 to 3 μm were formed on both sides of the obtained copper strip.
その銅条について実施例１と同様な腐食試験を行なった
ところ、２〜３倍の耐食性を示した。When the copper strip was subjected to the same corrosion test as in Example 1, it showed 2 to 3 times the corrosion resistance.
［発明の効果］
本発明は、銅または銅合金からなる素材の表面に、金属
粉流体と７ラツクス作用を右する液状ないしペースト状
の物質との混合物を塗布した後加熱して前記粉粒体を溶
融させて当該金属の被覆および／または拡散合金層を形
成する方法であるから、一連の工程を連続化することが
容易である。[Effects of the Invention] The present invention applies a mixture of a metal powder and a liquid or paste substance that exerts a 7-lux action to the surface of a material made of copper or a copper alloy, and then heats the mixture to form the powder or granule. Since this method involves melting the metal to form a coating and/or a diffusion alloy layer of the metal, it is easy to perform a series of steps continuously.
すなわち、表面に異種金属又は合金の被覆をもったラジ
ェータ用フィン材を安価、かつ容易に得ることができる
。特に合金の被膜を得る場合、電気メッキでは電流密度
の調整、液組成のコントロール等所定の濃度合金膜を得
るには多大なノウ・ハウが必要であるのに対し、本発明
では混合物中の粉粒体の組成制御により容易に実施可能
となる。That is, a radiator fin material whose surface is coated with a different metal or alloy can be obtained easily and inexpensively. In particular, when obtaining an alloy film, electroplating requires a great deal of know-how such as adjusting the current density and controlling the liquid composition to obtain an alloy film with a predetermined concentration. This can be easily implemented by controlling the composition of the granules.
第１図は本発明に係る方法の一実施例を示す説明図であ
る。
１・・・素 材。
２・・・塗布ロール。
３・・・混合物送給装置。
４・・・混合物の薄い層。
５・・・加 熱 装 置。
８・・・被 覆 層。FIG. 1 is an explanatory diagram showing an embodiment of the method according to the present invention. 1...Material. 2... Application roll. 3...Mixture feeding device. 4...Thin layer of mixture. 5... Heating device. 8...Coating layer.
Claims (2)
外の金属の被覆および／または当該金属の拡散層を設け
てなるラジエータ用フィン材の製造方法であつて、被覆
しようとする金属または合金の粉粒体とフラックス作用
を有する液状ないしはペースト状の物質との混合物を前
記素材の表面に塗布する工程と、塗布された素材を前記
粉粒体の融点以上で、かつ素材の融点以下の温度で加熱
して前記粉粒体を溶融させる工程を含むことを特徴とす
る方法。(1) A method for manufacturing a radiator fin material in which the surface of a material made of Cu or a Cu alloy is coated with a metal other than Cu and/or a diffusion layer of the metal is provided, which A step of applying a mixture of powder and granular material and a liquid or pasty substance having a flux action to the surface of the material, and heating the applied material at a temperature above the melting point of the granular material and below the melting point of the material. A method comprising the step of melting the powder by heating.
、Ａｕ、Ｔｅ、Ｂｉ、Ｃｄ、Ｇａ、Ｉｎ、若しくはこれ
らの中の１種又は２種以上を主成分とする合金である、
前記第１項記載の方法。(2) Powder is Sn, Pb, Zn, Al, Ag, Ni
, Au, Te, Bi, Cd, Ga, In, or an alloy containing one or more of these as a main component,
The method according to item 1 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27746485A JPS61179880A (en) | 1985-12-10 | 1985-12-10 | Production of fin material for radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27746485A JPS61179880A (en) | 1985-12-10 | 1985-12-10 | Production of fin material for radiator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9607584A Division JPS60238487A (en) | 1984-05-14 | 1984-05-14 | Surface treatment of metallic wire rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61179880A true JPS61179880A (en) | 1986-08-12 |
| JPS6348948B2 JPS6348948B2 (en) | 1988-10-03 |
Family
ID=17583956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27746485A Granted JPS61179880A (en) | 1985-12-10 | 1985-12-10 | Production of fin material for radiator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61179880A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0672063U (en) * | 1992-11-16 | 1994-10-07 | 東大無線株式会社 | Contact probe |
| WO1996036749A1 (en) * | 1995-05-16 | 1996-11-21 | Valeo Térmico, S.A. | Process for the protection against external corrosion in copper-based heat exchangers |
| EP1004386A1 (en) * | 1998-11-12 | 2000-05-31 | Ford Global Technologies, Inc. | Brazed assembly and method of making same |
| JP2006297430A (en) * | 2005-04-19 | 2006-11-02 | Ishikawajima Harima Heavy Ind Co Ltd | Equipment and method for manufacturing clad sheet of brazing filler metal |
| JP2013164247A (en) * | 2012-02-13 | 2013-08-22 | Mitsubishi Heavy Ind Ltd | Anticorrosive coating layer, thermoconductive pipe having the anticorrosive coating layer, and heat exchanger having the thermoconductive pipe |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49106920A (en) * | 1973-02-17 | 1974-10-11 | ||
| JPS5121377A (en) * | 1974-08-14 | 1976-02-20 | Hitachi Ltd | HODENTO |
| JPS54137439A (en) * | 1978-04-18 | 1979-10-25 | Minoru Isono | Formation of hardened layer on metal surface |
| JPS6086795U (en) * | 1983-11-17 | 1985-06-14 | 古河電気工業株式会社 | automotive heat exchanger |
-
1985
- 1985-12-10 JP JP27746485A patent/JPS61179880A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49106920A (en) * | 1973-02-17 | 1974-10-11 | ||
| JPS5121377A (en) * | 1974-08-14 | 1976-02-20 | Hitachi Ltd | HODENTO |
| JPS54137439A (en) * | 1978-04-18 | 1979-10-25 | Minoru Isono | Formation of hardened layer on metal surface |
| JPS6086795U (en) * | 1983-11-17 | 1985-06-14 | 古河電気工業株式会社 | automotive heat exchanger |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0672063U (en) * | 1992-11-16 | 1994-10-07 | 東大無線株式会社 | Contact probe |
| WO1996036749A1 (en) * | 1995-05-16 | 1996-11-21 | Valeo Térmico, S.A. | Process for the protection against external corrosion in copper-based heat exchangers |
| ES2129282A1 (en) * | 1995-05-16 | 1999-06-01 | Valeo Termico Sa | Process for the protection against external corrosion in copper-based heat exchangers |
| EP1004386A1 (en) * | 1998-11-12 | 2000-05-31 | Ford Global Technologies, Inc. | Brazed assembly and method of making same |
| JP2006297430A (en) * | 2005-04-19 | 2006-11-02 | Ishikawajima Harima Heavy Ind Co Ltd | Equipment and method for manufacturing clad sheet of brazing filler metal |
| JP4591175B2 (en) * | 2005-04-19 | 2010-12-01 | 株式会社Ｉｈｉ | Manufacturing equipment of brazing material clad sheet and manufacturing method thereof |
| JP2013164247A (en) * | 2012-02-13 | 2013-08-22 | Mitsubishi Heavy Ind Ltd | Anticorrosive coating layer, thermoconductive pipe having the anticorrosive coating layer, and heat exchanger having the thermoconductive pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6348948B2 (en) | 1988-10-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |