JPH03107438A - Aluminum alloy for heat exchanger fin material excellent in thermal conductivity and sacrificial anode effect - Google Patents
Aluminum alloy for heat exchanger fin material excellent in thermal conductivity and sacrificial anode effectInfo
- Publication number
- JPH03107438A JPH03107438A JP24231989A JP24231989A JPH03107438A JP H03107438 A JPH03107438 A JP H03107438A JP 24231989 A JP24231989 A JP 24231989A JP 24231989 A JP24231989 A JP 24231989A JP H03107438 A JPH03107438 A JP H03107438A
- Authority
- JP
- Japan
- Prior art keywords
- thermal conductivity
- sacrificial anode
- fin material
- alloy
- anode effect
- 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
- 239000000463 material Substances 0.000 title claims abstract description 41
- 230000000694 effects Effects 0.000 title claims abstract description 28
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 13
- 229910052718 tin Inorganic materials 0.000 claims abstract description 5
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 229910052797 bismuth Inorganic materials 0.000 claims abstract 3
- 238000005219 brazing Methods 0.000 abstract description 21
- 229910052738 indium Inorganic materials 0.000 abstract description 4
- 229910052748 manganese Inorganic materials 0.000 abstract description 4
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 description 12
- 239000000956 alloy Substances 0.000 description 12
- 238000005260 corrosion Methods 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 10
- 230000007423 decrease Effects 0.000 description 5
- 229910018131 Al-Mn Inorganic materials 0.000 description 3
- 229910018461 Al—Mn Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910000914 Mn alloy Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 208000014451 palmoplantar keratoderma and congenital alopecia 2 Diseases 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910018182 Al—Cu Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Prevention Of Electric Corrosion (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、ラジェータやカーエアコンなどのようにフィ
ンと作動流体通路構成材料とかろうイ４により接合され
る熱交換器のフィン利用アルミニウム合金に関し、特に
ろう付け後の熱伝導度が高く、犠牲陽極効果にすぐれた
フィン利用アルミニウム合金に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an aluminum alloy that utilizes fins in heat exchangers such as radiators and car air conditioners, where the fins and the working fluid passage constituent material are joined by a metal alloy 4. In particular, the present invention relates to a fin-based aluminum alloy that has high thermal conductivity after brazing and excellent sacrificial anode effect.
［従来の技術］
自動車などのラジェータ、エアコン、インタークーラや
オイルクーラなどの熱交換器においては、Ａｌ−Ｃｕ系
合金、Ａ Ｉ −Ｍ ｎ系合金、Ａｌ−Ｍｎ−Ｃｕ系合
金などの作動流体通路構成材料と、アルミニウム系合金
のフィン材とがろう付けにより組立てられている。そし
て、フィン材には、作動流体通路構成材料を防食するた
めに犠牲陽極効果が要求され、又、ろう付け時に高温加
熱によって変形したり、ろうが侵食したりしないように
優れた耐高温座屈性が要求される。ろう付け時の変形や
ろうの侵食を防ぐためにはＭｎの添加が有効であり、フ
ィン材には３００３や３２０３などのＡ Ｉ −Ｍｎ系
合金が用いられる。そして、犠牲陽極効果を付与するた
めには、Ａｌ−Ｍｎ合金にＺｎ、Ｓｎ、Ｉｎなどを添加
して電気化学的に卑にする方法（例えば特開明６２−１
２０４５５号公報参照）が、又、耐高温座屈性（耐高温
サグ性）を更に向上させるためには、Ｃ「、Ｔｉ５Ｚｒ
などを添加する方法（例えば特開昭５０−１１８９１９
号公報参照）が提案されている。[Prior Art] In heat exchangers such as radiators, air conditioners, intercoolers, and oil coolers for automobiles, working fluids such as Al-Cu alloys, AI-Mn alloys, and Al-Mn-Cu alloys are used. The passage forming material and the aluminum-based alloy fin material are assembled by brazing. The fin material is required to have a sacrificial anode effect to prevent corrosion of the working fluid passage material, and also has excellent high-temperature buckling resistance to prevent deformation due to high-temperature heating and corrosion of the solder during brazing. sexuality is required. Addition of Mn is effective in preventing deformation and corrosion of the solder during brazing, and an AI-Mn alloy such as 3003 or 3203 is used as the fin material. In order to impart a sacrificial anode effect, Zn, Sn, In, etc. are added to the Al-Mn alloy to make it electrochemically less noble (for example, JP-A-62-1
20455), but in order to further improve the high temperature buckling resistance (high temperature sag resistance), C", Ti5Zr
etc. (for example, Japanese Patent Application Laid-Open No. 50-118919
(see Publication No.) is proposed.
［発明が解決しようとする課題］
ところで、近年、熱交換器の軽量化、コストの低減など
の要求が強く、これに対応するためには熱交換器の構成
材料（作動流体通路構成材やフィン材など）を薄肉化す
ることが必要となっている。しかしフィン材を薄肉化す
ると伝熱断面積が小さくなるために、熱交換性能に支障
をきたすという問題が生じている。[Problems to be Solved by the Invention] In recent years, there has been a strong demand for lighter heat exchangers and lower costs. It is now necessary to make the materials thinner (such as materials). However, when the fin material is made thinner, the heat transfer cross-sectional area becomes smaller, which poses a problem in that heat exchange performance is impaired.
この問題を解消するためには、ろう付け後のフィン材の
熱伝導度を高めることが有効であるが、Ａｌ−Ｍｎ系合
金の場合、ろう付け時に高温でＭｎが固溶するため、熱
伝導度の低下が著しい。熱伝導性にすぐれたフィン材と
して、Ｍｎ ： ０．１〜０．８％、Ｚ ｒ ： ０
．０２〜０．２％及びＳｉ：０．１〜０．８％を含むア
ルミニウム合金も提案されているが（特公昭Ｂ３−２３
２［ｉ０号公報参照）、この場合、Ｍｎが少ないために
ろう付け後の強度が低く使用中にフィン倒れや変形が生
じやすい。又、フィン材の電位が卑でないため、犠牲陽
極効果が小さい。又、Ｓ ｉ ： ０．０３〜０．３％
、Ｆ ｅ ： ０．０５〜０．Ｂ％を含み、Ｚ ｒ ：
０．０１〜０．４％、Ｍ ｎ ： ０．０１〜０．３
％の１種または２種を含有するアルミニウム合金に提案
されているが（特開昭８３−４５３５２号公報参照）、
この場合はフィン材の電位が卑でないため、犠牲陽極効
果が小さい。更に、熱伝導度が高い純アルミニウム（１
０５０、■０７０など）にＺｎＳＳｎ、ＩｎあるいはＣ
ｒｓ Ｔｉ５Ｚｒなどを添加したフィン材を使用する試
みも行なわれているが、この場合、熱伝導度は高いもの
のろう付け後の強度が低いためにフィン倒れが生じやす
く、問題の根本的な解決にはなっていない。In order to solve this problem, it is effective to increase the thermal conductivity of the fin material after brazing, but in the case of Al-Mn alloys, Mn dissolves in solid solution at high temperatures during brazing, so thermal conductivity There is a significant decrease in the degree of As a fin material with excellent thermal conductivity, Mn: 0.1 to 0.8%, Zr: 0
．． Aluminum alloys containing Si: 02 to 0.2% and Si: 0.1 to 0.8% have also been proposed (Japanese Patent Publication Sho B3-23
2 (see Publication No. i0), in this case, since the Mn content is low, the strength after brazing is low and the fins tend to collapse or deform during use. Furthermore, since the potential of the fin material is not base, the sacrificial anode effect is small. Moreover, Si: 0.03 to 0.3%
, Fe: 0.05-0. Including B%, Z r :
0.01-0.4%, Mn: 0.01-0.3
It has been proposed for aluminum alloys containing one or two types of
In this case, since the potential of the fin material is not base, the sacrificial anode effect is small. Furthermore, pure aluminum with high thermal conductivity (1
050, ■070, etc.) with ZnSSn, In or C
Attempts have also been made to use fin materials containing additives such as rs Ti5Zr, but in this case, although the thermal conductivity is high, the strength after brazing is low and the fins tend to collapse, making it impossible to fundamentally solve the problem. It's not.
本発明はこの点を根本的に解決せんとするものである。The present invention aims to fundamentally solve this problem.
［課題を解決するための手段］
本発明者らは、種々のアルミニウム合金について検討を
行い、従来のＡｌ−Ｍｎ系合金に比べてろう付け後の強
度を大幅に低下させることなく、熱伝導度が大幅に向上
し、犠牲陽極効果及び耐高温座屈性にすぐれたフィン材
用アルミニウム合金を見出し、本発明を完成した。[Means for Solving the Problems] The present inventors investigated various aluminum alloys, and found that the thermal conductivity of We have discovered an aluminum alloy for fin materials that has significantly improved sacrificial anode effect and high-temperature buckling resistance, and completed the present invention.
すなわち、本発明は、Ｆ ｅ ： ０．２〜１．８％
、Ｓ ｉ ： ０．２〜０．８％、Ｍ ｎ ： ０
．１〜０．３５％、Ｚ ｒ ： ０．０５〜０．２０％
、Ｃｕ：０．３％以下を含有し、更にＩ ｎ ： ０
，００５〜０．１％、Ｓｎ：０．０１〜０．１％、Ｇａ
：Ｏ，吋〜０，２％およびＢ ｉ ： ０．０１〜０６
１％のうち１種又は２種５以上を含有し−、残部ＡＩ及
び不可避的不純物からなることを特徴とするろう付け後
熱伝導度及び犠牲陽極効果にすぐれた熱交換器フィン材
用アルミニウム合金である。That is, in the present invention, Fe: 0.2 to 1.8%
, Si: 0.2-0.8%, Mn: 0
．． 1-0.35%, Zr: 0.05-0.20%
, Cu: 0.3% or less, and In: 0
,005~0.1%, Sn:0.01~0.1%, Ga
:O, ˜0.2% and B i : 0.01-06
An aluminum alloy for heat exchanger fin material having excellent post-brazing thermal conductivity and sacrificial anode effect, characterized by containing 5 or more of 1 or 2 of 1% and the remainder consisting of AI and unavoidable impurities. It is.
本発明における各成分の限定理由は次のとおりである。The reasons for limiting each component in the present invention are as follows.
Ｆｅ ： Ｆｅは合金の強度すなわちろう付け前のフィ
ン材の強度とともにろう付け後の強度を向上させる。本
発明合金はＭｎ、Ｓｔを含んでいるので、Ｆｅ：０．２
％以上で強度向上の効果が現われる。０．２％未満では
効果が十分でない。一方１．８％を超えると鋳造時に粗
大な晶出物が生成し、板材の製造が困難になる。Fe: Fe improves the strength of the alloy, that is, the strength of the fin material before brazing, as well as the strength after brazing. Since the alloy of the present invention contains Mn and St, Fe: 0.2
% or more, the effect of improving strength appears. If it is less than 0.2%, the effect is not sufficient. On the other hand, if it exceeds 1.8%, coarse crystallized substances will be generated during casting, making it difficult to manufacture plate materials.
Ｓｔ ：ＳｉはＡｌ−Ｍｎ−３ｉ系あるいはＡｌ−Ｍｎ
−Ｆｅ−８ｉ系の化合物を生成してＭｎの固溶量を減少
させ、熱伝導度を向上させる。その含有量が０．２％未
満では効果が十分でなく、０．６％を越えると逆に熱伝
導度が低下する。St:Si is Al-Mn-3i system or Al-Mn
A -Fe-8i type compound is produced to reduce the amount of solid solution of Mn and improve thermal conductivity. If the content is less than 0.2%, the effect will not be sufficient, and if it exceeds 0.6%, the thermal conductivity will decrease.
Ｍｎ：Ｆｅと同様にろう付け前およびろう付け後の強度
を向上させる。又、耐高温座屈性および成形加工性を改
良する。０．１％未満で効果が十分でな（，０，１５％
を越えると熱伝導度が低下する。Mn: Like Fe, improves strength before and after brazing. It also improves high temperature buckling resistance and moldability. The effect is not sufficient if it is less than 0.1% (0.15%
When the temperature exceeds 100%, the thermal conductivity decreases.
Ｚｒ ： Ｚｒは耐高温座屈性を向上させる。下限未満
では効果が十分でなく、上限を越えるとろう付後の熱伝
導度が低下する。Zr: Zr improves high temperature buckling resistance. If it is less than the lower limit, the effect will not be sufficient, and if it exceeds the upper limit, the thermal conductivity after brazing will decrease.
Ｃｕ：ろう付後のフィンの強度を向上させる。Cu: Improves the strength of the fin after brazing.
上限を越えると電位が貴になり、犠牲陽極効果が損われ
る。If the upper limit is exceeded, the potential becomes noble and the sacrificial anode effect is impaired.
Ｉｎ５ＳｎＳＧａ、Ｂｉ ：フィン材の電位を卑にし、
犠牲陽極効果を付与する。下限未満では効果が十分でな
く、上限を越えると効果が飽和するばかりでなく、自己
耐食性、圧延加工性が劣化する。In5SnSGa, Bi: Makes the potential of the fin material base,
Adds sacrificial anode effect. If it is less than the lower limit, the effect will not be sufficient, and if it exceeds the upper limit, the effect will not only be saturated, but also the self-corrosion resistance and rolling workability will deteriorate.
その他の元素では、本発明合金の効果を損わない範囲で
、Ｍｇ、Ｃｒ５Ｔｉなどを含んでもよい。ただし、いず
れも含有量が多くなると熱伝導度が低下するので、Ｍｇ
は０．２％以下、Ｃｒは０．０５％以下、Ｔｉは０．０
５％以下にすることが望ましい。Ｍｇは、フッ化物フラ
ックスろう付けを行う場合にはフラックスと反応するの
で更に低く、すなわち０，１％以下に抑えることが望ま
しい。Ｔｉは鋳造時の結晶微細化のために合金元素とし
て添加してもよいし、ＡＩ−Ｔｉ−Ｂ微細化剤として添
加してもよいが、上記の範囲内に抑えることが望ましい
。Other elements may include Mg, Cr5Ti, etc. within a range that does not impair the effects of the alloy of the present invention. However, as the content of both increases, the thermal conductivity decreases, so Mg
is 0.2% or less, Cr is 0.05% or less, Ti is 0.0
It is desirable to keep it below 5%. Since Mg reacts with the flux when fluoride flux brazing is performed, it is desirable to keep it even lower, that is, below 0.1%. Ti may be added as an alloying element for crystal refinement during casting or as an AI-Ti-B refiner, but it is desirable to suppress it within the above range.
［実施例］
第１表に示す合金Ｎｏ、１〜２９を溶解・鋳造し、均質
化処理、熱間圧延、冷間圧延、中間焼鈍および仕上げ冷
間圧延を行い、０．０７＋ｎ＋ｎ厚さのフィン材を得た
。得られたフィン材をろう付け後の条件とするために５
Ｘ １０’ Ｔｏｒｒ以下の真空中で６００℃×３分間
の加熱処理を行った後、引張試験、熱伝導度を測定した
。一般に金属の熱伝導度と電気伝導度との間には比例関
係があるので、ここでは熱伝導度に代えて電気伝導度（
２５℃）を測定した。また、犠牲陽極効果を評価するた
め、ｐＨ３に調整した３％ＮａＣ１水溶液中に８時間浸
漬後、自然電極電位を測定した。[Example] Alloy Nos. 1 to 29 shown in Table 1 were melted and cast, and subjected to homogenization treatment, hot rolling, cold rolling, intermediate annealing, and final cold rolling to form a fin with a thickness of 0.07+n+n. I got the material. In order to make the obtained fin material into conditions after brazing, 5
After heat treatment at 600° C. for 3 minutes in a vacuum of X 10' Torr or less, a tensile test and thermal conductivity were measured. Generally, there is a proportional relationship between the thermal conductivity and electrical conductivity of metals, so here we will use electrical conductivity (instead of thermal conductivity).
25°C) was measured. In addition, in order to evaluate the sacrificial anode effect, the natural electrode potential was measured after immersion in a 3% NaCl aqueous solution adjusted to pH 3 for 8 hours.
また、フィン材にコルゲート加工を施し、３００３材を
芯材とし４００４材を皮材（ろう材）とするプレート材
の上に乗せて、真空ろう付けを行い、ろう付け性を調べ
た。また、フィンとプレートの接合部についてＣＡＳＳ
試験をＪＩＳＤ ０２０１に基づき１ケ月間行い、プレ
ートの最大腐食深さの測定と、フィンの腐食状況を観察
した。In addition, the fin material was corrugated, placed on a plate material with 3003 material as the core material and 4004 material as the skin material (brazing material), and vacuum brazed to examine the brazing properties. Also, regarding the joint between the fin and the plate, CASS
The test was conducted for one month based on JISD 0201, and the maximum corrosion depth of the plate was measured and the corrosion status of the fin was observed.
結果を第１表に併記する。The results are also listed in Table 1.
本発明に係わる合金Ｎｏ、１〜１３材は、引張強度が８
．８ｋｇｆ／ｎ＋ｍ２以上と高く、電気伝導度も４６％
以上と高く （従来材の３００３は３８％）熱伝導度が
高いことを示している。また、ろう付け性も良好であり
、自然電極電位も−７４０から一７９ｆｌｎＶｖｓＳＣ
Ｅの範囲であり電気化学的に卑である。Alloy Nos. 1 to 13 materials related to the present invention have a tensile strength of 8
．． High at over 8kgf/n+m2 and electrical conductivity of 46%
This shows that the thermal conductivity is high (38% for the conventional material 3003). In addition, it has good brazing properties, and the natural electrode potential ranges from -740 to -79 flnV vs SC.
E range and is electrochemically base.
また、ＣＡＳＳ試験後試験−−ト材の最大腐食深さは、
０．０５〜０．０７ｎ＋ｍと小さく犠牲陽極効果に優れ
ている。また、フィンの腐食状況も正常である。これに
対し、比較合金のＮｏ、１４は、Ｆｅ含有量が０．１１
％と少ないため、引張強度が７．８ｋｇｆ／＋ｎｍ２と
低い。In addition, the maximum corrosion depth of the test material after the CASS test is
It is small, 0.05 to 0.07 n+m, and has an excellent sacrificial anode effect. Furthermore, the corrosion of the fins is also normal. On the other hand, comparative alloy No. 14 has an Fe content of 0.11
%, the tensile strength is as low as 7.8 kgf/+nm2.
Ｎｏ、１５は、Ｆｅ含有量が２．０３％と多いため、鋳
造時に粗大晶出物が生じたため、圧延が困難となり、試
験を中断した。In No. 15, since the Fe content was as high as 2.03%, coarse crystallized substances were generated during casting, making rolling difficult, and the test was discontinued.
Ｎｏ、１８は、Ｓｉ含有量が０．１３％と少ないため、
電気伝導度が４２％ＩＡＣＳと低く、熱伝導度が低い。No. 18 has a low Si content of 0.13%, so
It has a low electrical conductivity of 42% IACS and a low thermal conductivity.
Ｎｏ、１７は、Ｓｉ含有量がｏ、８５％と多いため、電
気伝導度が４１％ｌＡＣ３と低く、熱伝導度が低い。No. 17 has a high Si content of 85%, so the electrical conductivity is low at 41% lAC3, and the thermal conductivity is low.
Ｎｏ、１８は、Ｍｎ含有量が０．０８％と少ないため、
引張強度が８．０ｋｇｆ／＋ｎｍ’と低い。No. 18 has a low Mn content of 0.08%, so
The tensile strength is as low as 8.0 kgf/+nm'.
Ｎｏ、１９は、Ｍｎ含有量が０．４９％と多いため、電
気伝導度が４２％ＩＡＣＳと低く、熱伝導度が低い。No. 19 has a high Mn content of 0.49%, so the electrical conductivity is low at 42% IACS, and the thermal conductivity is low.
Ｎｏ、２０はＺｒ含有量が０．０２％と少ないため、ろ
う付け試験でフィンに座屈が生じた。これはフィン材中
へろうが侵食したためである。Since No. 20 had a low Zr content of 0.02%, buckling occurred in the fin in the brazing test. This is because the wax eroded into the fin material.
Ｎｏ、２１は、Ｚｒ含有量が０．２９％と多いため、電
気伝導度が４２％ｌＡＣ３と低く、熱伝導度が低い。No. 21 has a high Zr content of 0.29%, so the electrical conductivity is low at 42%lAC3, and the thermal conductivity is low.
Ｎｏ、２２はＣｕ含有量が０．４９％と多いため、自然
電極電位が一７００ｍＶｖｓＳ ＣＥであり、電気化学
的に貴となり、犠牲陽極効果に劣るものである。このた
めプレート材の最大腐食深さも０．４２＋ｎｍと大きく
なった。Since No. 22 has a high Cu content of 0.49%, the natural electrode potential is 1700 mV vs S CE, which is electrochemically noble and inferior in sacrificial anode effect. Therefore, the maximum corrosion depth of the plate material also increased to 0.42+nm.
Ｎ ｏ、２３は、Ｉ ｎ ＳＳ ｎ ｓ Ｇ ａ ｓ
Ｂ ｉを含有し ０
ないために自然電極電位が一７１０ｍＶ ｖｓＳ ＣＥ
と電気化学的に貴であり、犠牲陽極効果に劣るものであ
る。このためプレート材の最大腐食深さも０．４０と大
きくなった。No, 23 is I n SS n s Gas
Since it does not contain B i, the natural electrode potential is 1710 mV vs S CE
It is electrochemically noble and inferior to the sacrificial anode effect. For this reason, the maximum corrosion depth of the plate material also increased to 0.40.
Ｎｏ、２４から２７は、Ｉ ｎ ｓ Ｓ ｎ ｓ Ｇ
ａ及びＢｉ含有量が発明の範囲より多いため、フィン
材の自己耐食性が劣り、フィンの消耗が顕著である。No. 24 to 27 are I n s S n s G
Since the a and Bi contents are higher than the range of the invention, the self-corrosion resistance of the fin material is poor and the wear of the fins is significant.
Ｎｏ、２８は、従来使用されてきた３００３合金の場合
であり、電気伝導度が８８％ｌＡＣ３と低く、熱伝導度
が低い。また、自然電極電位が一６８０ｍＶｖｓＳＣＥ
と電気化学的に貴で、犠牲陽極効果に劣るものである。No. 28 is the case of the conventionally used 3003 alloy, which has a low electrical conductivity of 88% lAC3 and a low thermal conductivity. In addition, the natural electrode potential is 1680 mV vs SCE
It is electrochemically noble and inferior to the sacrificial anode effect.
このためプレート材の最大腐食深さも０．４５＋＋ｕｎ
と大きくなった。Therefore, the maximum corrosion depth of the plate material is also 0.45++un
It got bigger.
Ｎ ｏ、２９は、従来使用されてきた３００３合金にＧ
ａを添加した場合であり、Ｇａの含有のために自然電極
電位が一７４０ｍＶｖｓＳ ＣＥとなり、犠牲陽極効果
は改善されるが、電気伝導度は２７％ｌＡＣ３と低く、
熱伝導度が低い。No. 29 is G in the conventionally used 3003 alloy.
In this case, the natural electrode potential becomes 1740 mV vs S CE due to the addition of Ga, and the sacrificial anode effect is improved, but the electrical conductivity is as low as 27% lAC3.
Low thermal conductivity.
１３
［発明の効果］
本発明によると、熱伝導度、犠牲陽極効果、耐高温座屈
性、強度に優れたフィン材が提供でき、フィン材の薄肉
化が可能となり、熱交換器の軽量化、低コスト化に寄与
する。13 [Effects of the Invention] According to the present invention, a fin material with excellent thermal conductivity, sacrificial anode effect, high-temperature buckling resistance, and strength can be provided, and the fin material can be made thinner, resulting in a lighter heat exchanger. , contributing to cost reduction.
Claims (1)
ｎ：０．１〜０．３５％、Ｚｒ：０．０５〜０．２０％
、Ｃｕ：０．３％以下を含有し、更にＩｎ：０．００５
〜０．１％、Ｓｎ：０．０１〜０．１％、Ｇａ：０．０
１〜０．２％及びＢｉ：０．０１〜０．１％のうち１種
又は２種以上を含有し、残部Ａｌ及び不可避的不純物か
らなることを特徴とするろう付け後熱伝導度及び犠牲陽
極効果にすぐれた熱交換器フィン材用アルミニウム合金
。Fe: 0.2-1.8%, Si: 0.2-0.6%, M
n: 0.1-0.35%, Zr: 0.05-0.20%
, Cu: 0.3% or less, and In: 0.005
~0.1%, Sn: 0.01~0.1%, Ga: 0.0
1 to 0.2% and Bi: 0.01 to 0.1%, and the remainder consists of Al and inevitable impurities. Aluminum alloy for heat exchanger fin material with excellent anode effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1242319A JPH0689429B2 (en) | 1989-09-20 | 1989-09-20 | Aluminum alloy for heat exchanger fin material which has excellent thermal conductivity after brazing and sacrificial anode effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1242319A JPH0689429B2 (en) | 1989-09-20 | 1989-09-20 | Aluminum alloy for heat exchanger fin material which has excellent thermal conductivity after brazing and sacrificial anode effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03107438A true JPH03107438A (en) | 1991-05-07 |
| JPH0689429B2 JPH0689429B2 (en) | 1994-11-09 |
Family
ID=17087441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1242319A Expired - Fee Related JPH0689429B2 (en) | 1989-09-20 | 1989-09-20 | Aluminum alloy for heat exchanger fin material which has excellent thermal conductivity after brazing and sacrificial anode effect |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0689429B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011513552A (en) * | 2008-03-03 | 2011-04-28 | ハネウェル・インターナショナル・インコーポレーテッド | Heat transfer system, method, heat transfer fluid and additive package comprising brazed aluminum |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54124811A (en) * | 1978-03-22 | 1979-09-28 | Sumitomo Light Metal Ind | Fin material for heat exchanger comprising aluminium alloy and production |
| JPS6110024A (en) * | 1984-06-07 | 1986-01-17 | ヘンケル・コマンデイツトゲゼルシヤフト・アウフ・アクチエン | Hot water manufacture of transparent sodium silicate solution |
| JPH01234541A (en) * | 1988-03-16 | 1989-09-19 | Furukawa Alum Co Ltd | Aluminum alloy fin material for brazing |
-
1989
- 1989-09-20 JP JP1242319A patent/JPH0689429B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54124811A (en) * | 1978-03-22 | 1979-09-28 | Sumitomo Light Metal Ind | Fin material for heat exchanger comprising aluminium alloy and production |
| JPS6110024A (en) * | 1984-06-07 | 1986-01-17 | ヘンケル・コマンデイツトゲゼルシヤフト・アウフ・アクチエン | Hot water manufacture of transparent sodium silicate solution |
| JPH01234541A (en) * | 1988-03-16 | 1989-09-19 | Furukawa Alum Co Ltd | Aluminum alloy fin material for brazing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011513552A (en) * | 2008-03-03 | 2011-04-28 | ハネウェル・インターナショナル・インコーポレーテッド | Heat transfer system, method, heat transfer fluid and additive package comprising brazed aluminum |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0689429B2 (en) | 1994-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4166613B2 (en) | Aluminum alloy fin material for heat exchanger and heat exchanger formed by assembling the fin material | |
| JP4002352B2 (en) | Aluminum alloy sacrificial anode material for heat exchanger and high corrosion resistance aluminum alloy composite material for heat exchanger using the same | |
| JP3407965B2 (en) | Aluminum alloy fin material | |
| JPH1088265A (en) | Aluminum alloy fin material for heat exchanger, excellent in sacrificial anode effect as well as in strength after brazing | |
| KR100329686B1 (en) | Aluminum Alloy Fin Material for Heat Exchanger | |
| JP2002161324A (en) | Aluminum alloy fin-material for heat exchanger superior in formability and brazability | |
| JP2768393B2 (en) | Aluminum alloy for heat exchanger fin material with excellent strength after brazing and sacrificial anode effect | |
| JPH03107438A (en) | Aluminum alloy for heat exchanger fin material excellent in thermal conductivity and sacrificial anode effect | |
| JP2691069B2 (en) | Heat exchanger with excellent corrosion resistance and heat transfer | |
| JP2002012935A (en) | Aluminum alloy sheet with protective corrosion prevention and its composite material | |
| JPH0788677A (en) | Manufacture of aluminum alloy brazing sheet and heat exchanger made of aluminum alloy | |
| JP2000135590A (en) | High strength aluminum alloy clad material for heat exchanger | |
| JPH0390529A (en) | Aluminum alloy for heat exchanger fin material excellent in thermal conductivity after brazed and sacrificial anode effect | |
| JP2000202681A (en) | Aluminum alloy fin material for heat exchanger excellent in brazability | |
| JP2000135591A (en) | Aluminum alloy clad material for heat exchanger superior in corrosion resistance | |
| JPH07102337A (en) | Production of aluminum alloy fin material for brazing and heat exchanger made of aluminum alloy | |
| JPH0841573A (en) | High strength aluminum alloy fin material for heat exchanger | |
| JPH0718358A (en) | High strength aluminum alloy fin material for heat exchanger | |
| JPH03104834A (en) | Aluminum alloy for heat exchanger fin material having excellent thermal conductivity after brazing and sacrificial anode effect | |
| JPH05247570A (en) | Aluminum alloy for heat exchanger fin material excellent in strength after brazing and sacrificial anode effect | |
| JPH0382729A (en) | Aluminum alloy for heat exchanger fin material excellent in thermal conductivity after brazed and sacrificial anode effect | |
| JPH04193927A (en) | Brazable fin material for aluminum heat exchanger having superior heat conductivity and significant sacrificial anode effect after brazing | |
| JP2943482B2 (en) | Al-Heat Exchanger Working Fluid Channel Forming Structural Member with Skin Material Exhibiting Sacrificial Anode Effect for Long Term | |
| JPH04198449A (en) | Brazing fin material for aluminum heat exchanger excellent in thermal conductivity after brazing and sacrificial anode effect | |
| JPH05179380A (en) | Aluminum alloy clad fin material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |