JP4275560B2 - Aluminum alloy fin material for heat exchangers with excellent Abeck resistance and stackability - Google Patents
Aluminum alloy fin material for heat exchangers with excellent Abeck resistance and stackability Download PDFInfo
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- 239000000463 material Substances 0.000 title claims description 30
- 229910000838 Al alloy Inorganic materials 0.000 title claims description 14
- 238000012545 processing Methods 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims 1
- 238000000465 moulding Methods 0.000 description 24
- 238000005482 strain hardening Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
この発明は、熱交換器のフィンに用いられるアルミニウム合金フィン材であって、ドロー加工、ドローレス加工などによってカラー成形部を形成してチューブなどとともに熱交換器を構成する熱交換器用アルミニウム合金フィン材に関する。 The present invention is an aluminum alloy fin material used for fins of a heat exchanger, which is formed by color forming by draw processing, drawless processing or the like to form a heat exchanger together with a tube or the like. About.
熱交換器の作製に際し、フィンに形成されたカラー成形部にチューブを挿通することで多数のフィンを所定ピッチの間隔で積層した状態にし、さらに前記チューブを拡管することでチューブとフィンとを固定して熱交換器の組み立てを行うものが知られている（例えば特許文献１）。
ところで、近年、エアコンの小型化に伴い熱交換器も小型化してきており、これによって熱交換器のフィンピッチが小さくなり、またチューブ径の小径化、フィンパターンも簡素化してきている。また、コスト低減としてフィン板厚の薄肉化が進んでおり、過去は板厚１１０μｍ程度であったが、近年では１００〜９０μｍの厚みになっている。これらの傾向はフィンの剛性を低下させる要因となり、したがって拡管工程時にアルミニウムフィンを用いた熱交換器のフィンピッチが乱れるアベック現象が発生する。板厚１１０μｍ程度ではフィンの剛性がありアベックの発生に至らないが、１００μｍ以下になるとフィンの剛性が低下し、アベックが発生しやすくなる。 By the way, in recent years, heat exchangers have also been miniaturized with the miniaturization of air conditioners, and as a result, the fin pitch of the heat exchanger has been reduced, the tube diameter has been reduced, and the fin pattern has been simplified. Further, as the cost reduction, the fin plate thickness has been reduced, and in the past, the plate thickness was about 110 μm, but in recent years, the thickness has become 100 to 90 μm. These tendencies decrease the fin rigidity, and therefore, the Abeck phenomenon occurs in which the fin pitch of the heat exchanger using aluminum fins is disturbed during the pipe expansion process. When the plate thickness is about 110 μm, the rigidity of the fins is not reached and the occurrence of Abeck does not occur.
また、Ｃｕ、Ｍｇの添加は加工硬化量を増大させるため、カラー成形部の強度がＣｕ、Ｍｇ量の添加によって加工硬化が高くなり、未成形部の強度よりカラー成形部の強度が上回ることにより、未加工部が曲がってアベックが発生する。アベックは熱交換器のフィンピッチが小さくなるほど発生しやすい傾向にあり、熱交換器の小型化に伴い、フィンピッチも小さくなってきていることから、これによりアベックの発生率も多くなっている。
アベック現象は熱交換器の外観を損なうだけでなく、通風抵抗を増大させ、熱交換器性能の低下にもつながるため大きな問題となる。
In addition, since the addition of Cu and Mg increases the work hardening amount, the strength of the color molding part is increased by the addition of the Cu and Mg amounts, and the strength of the color molding part exceeds the strength of the unmolded part. The unprocessed part is bent and Abeck occurs. Abeck tends to be generated more easily as the fin pitch of the heat exchanger becomes smaller, and the fin pitch has become smaller with the miniaturization of the heat exchanger. Therefore, the occurrence rate of Abeck has also increased.
The Abek phenomenon is a serious problem because it not only impairs the appearance of the heat exchanger, but also increases the ventilation resistance and lowers the performance of the heat exchanger.
また、上記フィンは一般には、プレス成形加工後にスタッカーのピンにカラー成形部の孔を挿通しスタックして熱交換器の組み立てに供される。しかし、上記のようにカラー成形部と未成形部との加工硬化量の差により、成形後のフィンに反りを生じ、カラー成形孔がスタッカーのピンに入りにくくなり、これによりプレス成形加工が中断し、生産効率を大幅に低下させる。 The fins are generally used for assembling a heat exchanger after press forming, stacking the holes of the color forming part through the pins of the stacker. However, due to the difference in the amount of work hardening between the color molding part and the unmolded part as described above, warping occurs in the fin after molding, making it difficult for the color molding hole to enter the pin of the stacker, thereby interrupting the press molding process. And significantly reduce production efficiency.
本発明は、上記事情を背景としてなされたものであり、ドロー加工によって耐アベック性、スタック性に優れたフィンを得ることができ、さらにはドローレス加工によっても同様にフィンを得ることができる熱交換器用アルミニウム合金フィン材を提供することを目的とする。 The present invention has been made against the background of the above circumstances, and heat exchange that can obtain fins excellent in the anti-Abeck property and stackability by draw processing, and can also obtain fins by drawless processing as well. An object of the present invention is to provide a tempered aluminum alloy fin material.
すなわち、本発明の耐アベック性、スタック性に優れた熱交換器用アルミニウム合金フィン材のうち、請求項１記載の発明は、質量％で、Ｆｅ：０．６〜１．０％、Ｔｉ：０．００１〜０．１％を含有し、残りがＡｌと不純物からなるとともに、前記不純物中において、Ｓｉを０．１％以下、Ｃｕを０．０３％以下に規制した組成を有し、伸び率が２５．０％〜３２．６％であることを特徴とする。
請求項２記載の耐アベック性、スタック性に優れた熱交換器用アルミニウム合金フィン材の発明は、請求項１記載の発明において、引張強さが１０７〜１２１ＭＰａであることを特徴とする。
That is, among the aluminum alloy fin materials for heat exchangers excellent in Abeck resistance and stackability of the present invention, the invention according to
The invention of the aluminum alloy fin material for a heat exchanger excellent in Abeck resistance and stacking property according to claim 2 is characterized in that, in the invention of
請求項３記載の耐アベック性、スタック性に優れた熱交換器用アルミニウム合金フィン材の発明は、請求項１または２に記載の発明において、さらに前記不純物中において、質量％でＭｇを０．０３％以下に規制したことを特徴とする。
The invention of the aluminum alloy fin material for a heat exchanger excellent in Abeck resistance and stackability according to
請求項４記載の耐アベック性、スタック性に優れた熱交換器用アルミニウム合金フィン材の発明は、請求項１〜３のいずれかに記載の発明において、板厚が０．１１ｍｍ未満であってドロー加工またはドローレス加工に供されるものであることを特徴とする。
The invention of the aluminum alloy fin material for a heat exchanger excellent in Abeck resistance and stackability according to
従来材では、フィンの板厚が薄く又、カラー成形部の強度が加工硬化により高くなり、未成形部の強度よりカラー成形部の強度が上回ることにより、未加工部が曲がってアベックが発生する。本発明では、第１には、Ｃｕ量を規制することでカラー成形部の加工硬化量を低くする。これにより薄肉材の板厚１００μｍ以下を使用し、フィンピッチを１．８ｍｍ以下にした熱交換器でのアベック現象を解決することができる。
また更に、本発明材ではプレス加工後フィンのスプリングバック量を軽減し、成形後のフィンの反りを解消し、フィンスタック性を良好にする効果もある。
In the conventional material, the fin thickness is thin, the strength of the color molding part is increased by work hardening, and the strength of the color molding part exceeds the strength of the non-molding part, so that the non-working part bends and Abeck occurs. . In the present invention, first, the work hardening amount of the color molding portion is lowered by regulating the amount of Cu. As a result, it is possible to solve the Abeck phenomenon in a heat exchanger using a thin-walled material with a plate thickness of 100 μm or less and a fin pitch of 1.8 mm or less.
Furthermore, the material of the present invention has the effect of reducing the amount of spring back of the fin after press working, eliminating the warping of the fin after molding, and improving the fin stackability.
以下に、本発明で規定する成分の限定理由について説明する。なお、各成分の含有量はいずれも質量％で示されている（以下、同じ）。 Below, the reason for limitation of the component prescribed | regulated by this invention is demonstrated. In addition, all content of each component is shown by the mass% (hereinafter, the same).
Ｆｅ：０．６〜１．０％
Ｆｅ成分は合金に固溶して合金の強度を向上させると共に、結晶粒を微細化して伸び加工性を向上させる。Ｆｅ含有量が０．６％未満では上記効果が得られない。一方、１．０％を超えて含有させると金属間化合物が粗大化し、成形時に粗大晶出物近傍で不均一な変形を伴い、張り出し性、絞り性が低下し、成形不良となる。また、上記と同様の理由によりＦｅ含有量の好ましい上限は０．９％であり、さらに好ましい下限は０．７１％である。
Fe: 0.6 to 1.0%
The Fe component is dissolved in the alloy to improve the strength of the alloy, and the crystal grains are refined to improve the elongation workability. If the Fe content is less than 0.6 %, the above effect cannot be obtained. On the other hand, if the content exceeds 1.0%, the intermetallic compound is coarsened and accompanied by non-uniform deformation in the vicinity of the coarse crystallized product at the time of molding. For the same reason as described above, the preferable upper limit of the Fe content is 0.9%, and the more preferable lower limit is 0.71%.
Ｔｉ：０．００１〜０．１％
Ｔｉ成分は鋳造組織の微細化に効果があり、Ｔｉ含有量が０．００１％未満ではサブグレインを均一かつ微細にする効果が得られないだけでなく、張り出し性、絞り性をさらに向上させることができない。Ｔｉ含有量が０．１％より多くなると、Ｔｉの粗大な化合物が分布するため、均一且つ微細なサブグレインを形成させることが困難となる。したがって、Ｔｉ含有量は０．００１〜０．１％であることが必要である。
Ti: 0.001 to 0.1%
The Ti component is effective for refinement of the cast structure. If the Ti content is less than 0.001%, not only the effect of making the subgrains uniform and fine can be obtained, but also the stretchability and squeezability are further improved. I can't. When the Ti content exceeds 0.1%, coarse compounds of Ti are distributed, so that it becomes difficult to form uniform and fine subgrains. Therefore, the Ti content needs to be 0.001 to 0.1%.
Ｓｉ：０．１％以下
Ｓｉ含有量が０．１％より多くなると鋳造時の晶出物が粗大化することから、成形時に粗大晶出物近傍で不均一な変形を伴い、張り出し性、絞り性が低下し、成形不良が生じる。したがって、Ｓｉ含有量は０．１％以下であることが必要である。
Si: 0.1% or less When the Si content is more than 0.1%, the crystallized product at the time of casting becomes coarse. The moldability is lowered and molding defects occur. Therefore, the Si content needs to be 0.1% or less.
Ｃｕ：０．０３％以下
前述したように、Ｃｕは材料の加工硬化を招き、耐アベック性等を低下させるので、０．０３％以下に規制する。さらに好ましい下限は０．０１％以下である。なお、下限を０とすると、地金の純度が高くなってしまい、コストＵＰになることから、０．００１％以上を許容する。
Cu: 0.03% or less As described above, Cu invites work hardening of the material and lowers the resistance to Abeck and the like, so it is restricted to 0.03% or less. A more preferred lower limit is 0.01% or less. If the lower limit is 0, the purity of the bare metal becomes high and the cost is increased, so 0.001% or more is allowed.
Ｍｇ：０．０３％以下
Ｍｇも材料の加工硬化を招き、耐アベック性等を低下させるので、所望により０．０３％以下に規制する。好ましくは、０．０１％以下である。また、下限を０とすると、地金の純度が高くなってしまい、コストＵＰになることから、０．００１％以上を許容する。
Mg: 0.03% or less Mg also causes work hardening of the material and lowers the Abek resistance or the like, so it is restricted to 0.03% or less as desired. Preferably, it is 0.01% or less. On the other hand, if the lower limit is 0, the purity of the bullion becomes high and the cost is increased, so 0.001% or more is allowed.
以上説明したように、本発明によれば、質量％で、Ｆｅ：０．６〜１．０％、Ｔｉ：０．００１〜０．１％を含有し、残りがＡｌと不純物からなるとともに、前記不純物中において、Ｓｉを０．１％以下、Ｃｕを０．０３％以下に規制した組成を有し、伸び率が２５．０％〜３２．６％であって、さらに所望によりＭｇを０．０３％以下に規制したので、耐アベック性、スタック性に優れた熱交換器用アルミニウム合金フィン材が得られるものであり、今後、フィン材の薄肉化によるアベック現象低減に大きく貢献すると共に、スタック性改善により生産性が飛躍的に向上する効果がある。 As described above, according to the present invention, in mass%, Fe: 0.6 to 1.0%, Ti: 0.001 to 0.1% is contained, and the remainder is made of Al and impurities. The impurities have a composition in which Si is controlled to 0.1% or less and Cu is controlled to 0.03% or less, and the elongation is 25.0% to 32.6%. 0.03% or less, it is possible to obtain aluminum alloy fin materials for heat exchangers that are excellent in Abek resistance and stackability. In the future, it will greatly contribute to reducing the Abek phenomenon by reducing the thickness of the fin material, and stack Improvement in productivity has the effect of dramatically improving productivity.
以下に、本発明の一実施形態を説明する。
本発明のフィン材は、例えば常法により製造することができ、本発明組成に調製して鋳造、均質化処理、熱間圧延、冷間圧延などを経て薄板状とすることができる。また、本発明組成に調製して連続鋳造圧延によって板材とした後、冷間圧延を経て薄板状とするものであってもよい。その後は、例えば２００〜３００℃に加熱してＨ２２調質を行う。
なお、上記製造工程において、本発明としては特にその内容が限定されるものではなく、適宜の工程によって製造することができる。
本発明組成に調整されたアルミニウム合金フィン材は、各種方法、例えばドロー加工、ドローレス加工によってカラー成形部を設けることができる。
Hereinafter, an embodiment of the present invention will be described.
The fin material of the present invention can be produced, for example, by a conventional method, and can be formed into a thin plate shape by preparing the composition of the present invention and performing casting, homogenization treatment, hot rolling, cold rolling and the like. Moreover, after preparing into this invention composition and making it a plate material by continuous casting rolling, it may be made into a thin plate shape through cold rolling. After that, for example, it heats to 200-300 degreeC and performs H22 refining.
In addition, in the said manufacturing process, the content in particular is not limited as this invention, It can manufacture by a suitable process.
The aluminum alloy fin material adjusted to the composition of the present invention can be provided with a color molding portion by various methods such as draw processing and drawless processing.
図１は、本発明のフィン材１にドロー加工によってカラー成形部４を設ける工程を示す図である。
すなわち、フィン材１の所望の箇所を数次に亘ってドロー加工し、次いで、カラー成形部用にピアス、パーリングを行い、さらにリフレア加工を行って貫通孔３を有するカラー成形部４を形成する。
FIG. 1 is a diagram showing a process of providing a
That is, a desired portion of the
このような成形を経て得られるプレートフィン１０は、図２に示すように、カラー成形部４の高さによって間隔を規制するようにして多数を積層し、前記貫通孔３にチューブ２０を挿通する。なお、チューブ２０の固定に際しては、チューブ２０を貫通孔３の内径よりも多少外径が小さい形状にしておき、積層したプレートフィン１０の貫通孔３内にチューブ２０を挿入した状態で、チューブ２０をプラグ（図示しない）などで拡径してチューブ２０の外周部をカラー成形部４に押付けることでプレートフィン１０とチューブ２０との固定を行う。
本発明のフィン材によって製作されたプレートフィン１０は、このチューブ２０の拡管に際し、アベックが生じにくく、各プレートフィンが所定の間隔を保って整然と積層された熱交換器が得られる。
As shown in FIG. 2, the plate fins 10 obtained through such molding are stacked in a large number so that the interval is regulated by the height of the
When the
なお、上記では、ドロー加工によってカラー成形部を加工する手順について説明したが、本発明のフィン材は、ドローレス加工によってフィンを得るものであってもよく、該加工法によって得られたフィンにおいても優れた耐アベック性、スタック性が得られる。 In addition, although the procedure which processes a color molding part by draw processing was demonstrated above, the fin material of this invention may obtain a fin by drawless processing, and also in the fin obtained by this processing method Excellent Abeck resistance and stackability can be obtained.
以下に、本発明の実施例を比較例と比較しつつ説明する。
表１に示されている組成（質量％、残部Ａｌ及び他の不純物）のＡｌ合金鋳塊に、通常の条件で熱間圧延を施して熱延板とした後、６０〜９９％の冷間圧延を施して板厚９０〜１００μｍのフィン材を製作し、更に、上記フィン材に２００〜３００℃の温度で６時間保持の調質焼鈍により、Ｈ２２調質材を製作した。その後、ドロー加工法によりフィン径φ３／８インチ、カラーハイト１．４〜２．０ｍｍの条件でフィンプレス加工を行い、プレス加工後のフィンについてフィンピッチ１．４ｍｍ〜２．０ｍｍ仕様の熱交換器を製作し、拡管試験器にて拡管評価を行った。また、プレス加工後フィンについてフィンカラー断面のビッカース硬度の測定を行い、カラー成形部の硬度及び加工硬化量の比較を行った。その結果を表１に併記する。
Examples of the present invention will be described below in comparison with comparative examples.
After subjecting the Al alloy ingot having the composition shown in Table 1 (mass%, remaining Al and other impurities) to hot rolling under normal conditions to form a hot-rolled sheet, it is cold from 60 to 99%. A fin material having a thickness of 90 to 100 μm was manufactured by rolling, and further, an H22 tempered material was manufactured by tempering annealing at a temperature of 200 to 300 ° C. for 6 hours. Thereafter, fin press processing is performed under the conditions of fin diameter φ3 / 8 inch and color height 1.4 to 2.0 mm by a draw processing method, and heat exchange with fin pitch 1.4 mm to 2.0 mm specifications is performed on the pressed fins. An expansion test was conducted using a tube expansion tester. Moreover, the Vickers hardness of the fin collar cross section was measured about the fin after press work, and the hardness of the color molding part and the work hardening amount were compared. The results are also shown in Table 1.
評価方法については、アベック性の評価は拡管後の熱交換器のアベック発生状態についで目視観察を行い、アベックが発生していないものは○、中度に発生していたものは△、重度に発生したものは×とした。スタック性の評価は、プレス加工後フィンのスタックピン（スタッカー）への挿入状態を観察し、成形フィンがスタックピンに引っかからずにスタックされたものは○、スタックピンに引っかかったものを×とした。その結果を表１、２に併記する。 As for the evaluation method, the evaluation of the Abeck property is carried out by visually observing the state of occurrence of Abeck in the heat exchanger after the tube expansion, ○ if no Abeck has occurred, △ if it has occurred moderately, severely What occurred was marked with x. The evaluation of stackability was made by observing the insertion state of the fins into the stack pin (stacker) after press working, ○ if the molded fin was stacked without being caught by the stack pin, and × if it was caught by the stack pin. . The results are also shown in Tables 1 and 2.
表１、２より明らかなように、本発明例はＣｕ量を低減したことにより、板厚１００μｍ以下のフィン材で、フィンピッチ１．８ｍｍ以下で製作した熱交換器のアベックの発生を殆ど無くすことができ、かつスタック性を良好にすることができる。また、Ｍｇ量を低減することにより、板厚１００μｍ以下のフィン材で、フィンピッチ１．８ｍｍ以下で製作した熱交換器のアベックの発生を殆ど無くすことができる。これはフィンカラー成形部の硬度が低くなったいわゆる加工硬化量が減少したことによるものである。 As is clear from Tables 1 and 2, the present invention reduced the amount of Cu, so that the occurrence of Abeck in a heat exchanger manufactured with a fin material with a plate thickness of 100 μm or less and a fin pitch of 1.8 mm or less was almost eliminated. And stackability can be improved. Further, by reducing the amount of Mg, it is possible to almost eliminate the occurrence of Abeck in a heat exchanger manufactured with a fin material having a plate thickness of 100 μm or less and a fin pitch of 1.8 mm or less. This is due to a decrease in so-called work-hardening amount in which the hardness of the fin collar molding portion is reduced.
一方、本発明範囲外の組成については、フィンカラー成形部の硬度が高く、よって加工硬化量も増加したことにより、アベックが発生し、スタック性も悪化する。また、フィン板厚が１００μｍより厚く、フィンピッチが１．８ｍｍ超の熱交換器ではアベックの発生が少なくなる。 On the other hand, with respect to the composition outside the range of the present invention, the hardness of the fin collar molding part is high, and hence the work hardening amount is increased, so that Abeck is generated and the stackability is also deteriorated. In addition, in the heat exchanger having a fin plate thickness greater than 100 μm and a fin pitch exceeding 1.8 mm, the occurrence of Abeck is reduced.
１ フィン材
３ 貫通孔
４ カラー成形部
１０ プレートフィン
２０ チューブ
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| WO2012029594A1 (en) | 2010-09-03 | 2012-03-08 | 株式会社神戸製鋼所 | Heat exchanger aluminum alloy fin material and method for producing same |
| WO2012132784A1 (en) | 2011-03-31 | 2012-10-04 | 株式会社神戸製鋼所 | Drawless press aluminium alloy fin material for heat exchanger, and manufacturing method for same |
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| JP5693333B2 (en) * | 2011-03-31 | 2015-04-01 | 株式会社神戸製鋼所 | Aluminum alloy fin material for heat exchanger for combination press |
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| WO2012029594A1 (en) | 2010-09-03 | 2012-03-08 | 株式会社神戸製鋼所 | Heat exchanger aluminum alloy fin material and method for producing same |
| WO2012132784A1 (en) | 2011-03-31 | 2012-10-04 | 株式会社神戸製鋼所 | Drawless press aluminium alloy fin material for heat exchanger, and manufacturing method for same |
| WO2012132785A1 (en) | 2011-03-31 | 2012-10-04 | 株式会社神戸製鋼所 | Combination press aluminium alloy fin material for heat exchanger, and manufacturing method for same |
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