JPH0433769A - Manufacture of al alloy-made high strength sacrificial anode fin material in heat exchanger manufactured with brazing - Google Patents
Manufacture of al alloy-made high strength sacrificial anode fin material in heat exchanger manufactured with brazingInfo
- Publication number
- JPH0433769A JPH0433769A JP2135674A JP13567490A JPH0433769A JP H0433769 A JPH0433769 A JP H0433769A JP 2135674 A JP2135674 A JP 2135674A JP 13567490 A JP13567490 A JP 13567490A JP H0433769 A JPH0433769 A JP H0433769A
- Authority
- JP
- Japan
- Prior art keywords
- sacrificial anode
- alloy
- fin material
- brazing
- high strength
- 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 28
- 238000005219 brazing Methods 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000005266 casting Methods 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 238000007711 solidification Methods 0.000 claims description 17
- 230000008023 solidification Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 35
- 230000001965 increasing effect Effects 0.000 abstract description 11
- 229910052718 tin Inorganic materials 0.000 abstract description 6
- 229910052710 silicon Inorganic materials 0.000 abstract description 4
- 229910052738 indium Inorganic materials 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000009749 continuous casting Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000006104 solid solution Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 229910001020 Au alloy Inorganic materials 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000003353 gold alloy Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910017082 Fe-Si Inorganic materials 0.000 description 1
- 229910017133 Fe—Si Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229940075397 calomel Drugs 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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］
この発明は、ろう付によって接合される熱交換器に用い
られ、高強度で、しかも優れた犠牲陽極性能を有するＡ
ｌ合金製フィン材の製造方法に関するものである。Detailed Description of the Invention [Industrial Field of Application] The present invention is directed to a heat exchanger that is bonded by brazing and has high strength and excellent sacrificial anode performance.
The present invention relates to a method of manufacturing an L-alloy fin material.
［従来の技術］
従来、自動車などに広く用いしれている熱交換器は、軽
量で熱伝導度に優れたＡ℃合金性のフィン材を真空ろう
付などによって接合することによって製作されている。[Prior Art] Conventionally, heat exchangers widely used in automobiles and the like are manufactured by joining fin materials made of A° C. alloy, which is lightweight and has excellent thermal conductivity, by vacuum brazing or the like.
このフィン材には、熱交換器の管材なとの腐食を防止す
るために、犠牲陽極性能を付与することがあり、具体的
には、適量のＩｎ、Ｓｎなどを添加して平衡電位を低く
したＡＪ２合金が用いられている。この／１合金は、通
常の半連続鋳造（凝固速度２０〜ｂ
加工が加えられてフィン材として供される。This fin material is sometimes given sacrificial anode properties in order to prevent corrosion with heat exchanger tube materials. Specifically, appropriate amounts of In, Sn, etc. are added to lower the equilibrium potential. AJ2 alloy is used. This /1 alloy is subjected to normal semi-continuous casting (solidification rate 20-b processing) and used as a fin material.
［発明が解決しようとする課即コ
ところで、近年、熱交換器の一層の軽量化や製造コスト
の低減化の観点から、フィン材の薄肉化の要求が高まり
つつあり、これに拌って、材料としての高強度化が要望
されている。[Immediate issue to be solved by the invention]In recent years, there has been an increasing demand for thinner fin materials in order to further reduce the weight and manufacturing costs of heat exchangers. There is a demand for higher strength materials.
連常、犠牲陽極性能を付与したＡ℃−１ｎ系やＡｆｆ−
３ｎ系のフィン材では、強度向上のために、さらに、Ｍ
ｎ、Ｓｉ 、Ｆｅ、Ｚｒなとの元素を添加している。A℃-1n series and Aff- which have continuous and sacrificial anode performance
In order to improve the strength of 3n-based fin materials, M
Elements such as n, Si, Fe, and Zr are added.
ところが、上記した添加元素は、材料の電位を責にする
性質があり、フィン材の犠牲陽極効果を低下させてしま
う、＋のため、これら元素の添加量には限度があり、十
分な高強度化を図ることができず、ひいては、薄肉化の
障壁になっているどういう間頭点がある。However, the above-mentioned additive elements have the property of affecting the potential of the material and reduce the sacrificial anode effect of the fin material.Therefore, there is a limit to the amount of these elements added, and it is difficult to achieve sufficient high strength. What is the problem that makes it impossible to achieve thinning and, in turn, becomes a barrier to thinning?
なお、犠牲陽極効果を発揮する元素を増量し、犠牲陽極
効果を高めて、強度向上元素の添加量を増大させること
も考えられるが、この場合には、犠牲陽極効果は高まる
ものの、自己腐食速度が大きくなり、早期に犠牲陽極効
果が失われてしまうという間〃点がある。It is also possible to increase the amount of elements that exhibit a sacrificial anode effect to enhance the sacrificial anode effect and increase the amount of strength-improving elements added.In this case, although the sacrificial anode effect increases, the self-corrosion rate will decrease. There is a point at which the sacrificial anode effect becomes large and the sacrificial anode effect is lost at an early stage.
この発明は、上記間野点を解決することを基本的な目的
とし、優れた犠牲陽極効果を維持したままで、高強度化
を達成することができるろう付により製作される熱交換
器のＡｆ２合金製高強度犠牲陽極フィン材の製造方法を
提供するものである。The basic purpose of this invention is to solve the above-mentioned Mano point, and the Af2 alloy of the heat exchanger is manufactured by brazing, which can achieve high strength while maintaining an excellent sacrificial anode effect. The present invention provides a method for manufacturing a high-strength sacrificial anode fin material.
［課題を解決するための手段］
本願発明者らは、上記課即を解決すべく、鋭意検討した
結果、ＡＩ２合金を鋳造する際の凝固速度を十分に大き
くすることによって、犠牲陽極効果を発揮する１ｎまた
はＳｎのＡ！素素地への固溶量が増大し、したがって、
犠牲陽極効果が十分に発揮されるために、強度を向上さ
せる元素を増量して添加しても十分に卑な電位が得られ
ることを見出したものである。[Means for Solving the Problems] In order to solve the above-mentioned problems, the inventors of the present application have made extensive studies and found that the sacrificial anode effect can be achieved by sufficiently increasing the solidification rate when casting AI2 alloy. A of 1n or Sn to do! The amount of solid solution in the substrate increases, and therefore,
It was discovered that since the sacrificial anode effect is sufficiently exhibited, a sufficiently base potential can be obtained even if an increased amount of an element that improves strength is added.
すなわち、本願発明のうち第１の発明は、Ｉ ｎ ０．
００５〜０．１５ｗｔ％、Ｓ ｎ ０．ｌ ｌ〜０．２
０ｗｔ％の少なくとも１種と、
Ｆｅ ［）、１〜１．５ｉｖｔ％、Ｓｉ ０．０５〜
０．ｇｗｔ％を含有し、残部がＡ℃および不可避の不純
物からなるＡＩ２合金を、１００℃／秒以上の凝固速度
で鋳造することを特（紋とするものである。That is, the first invention of the present invention is I n 0.
005-0.15 wt%, Sn 0. l l~0.2
0wt% of at least one species, Fe[), 1-1.5ivt%, Si 0.05-
0. gwt%, with the balance being A°C and unavoidable impurities, is cast at a solidification rate of 100°C/sec or more.
また、第２の発明は、
Ｉ ｎ ０．００５〜０．１５ｗｔ％、Ｓ ｎ ０．ｌ
ｌ〜０．２０ｗｔ％の少なくとも１種と、
Ｆｅ ０．１〜１．５ｗｔ％、Ｓｉ ０．０５〜０．
８ｗｔ％を含有し、さらに、
Ｍｎ ０．１〜１．５ｗｔ％、Ｚ ｒ ０．０５〜０
．１５ｗｔ％の１種または２種を含有し、残部がＡ℃お
よび不可避の不純物からなるＡ！金合金、１００℃／秒
以上の凝固速度で鋳造することを特徴とするものである
。Moreover, the second invention has In 0.005 to 0.15 wt%, Sn 0. l
1 to 0.20 wt%, Fe 0.1 to 1.5 wt%, Si 0.05 to 0.
8 wt%, and further contains Mn 0.1-1.5 wt%, Zr 0.05-0
．． A! Contains 15 wt% of one or two types, with the remainder consisting of A°C and unavoidable impurities! It is a gold alloy, and is characterized by being cast at a solidification rate of 100° C./sec or more.
なお、本願発明によって得られるフィン材は、その後、
ろう付に供されるものであるが、そのろう付方法が特に
限定されるものではない。但し、本願発明は、真空ろう
打法を採用する場合に好適である。Note that the fin material obtained by the present invention is then
Although it is used for brazing, the brazing method is not particularly limited. However, the present invention is suitable when a vacuum brazing method is employed.
以下に、本願発明の構成における凝固速度の限定および
添加元素の範囲限定の理由を述べる。The reasons for limiting the solidification rate and limiting the range of added elements in the configuration of the present invention will be described below.
（１）鋳造時の凝固速度
鋳造時の凝固速度を大きくすることによって、１ｎまた
はＳｎのＡｌ素地中への固溶量が増大し、さらに、オｈ
出物は微細に分散する。(1) Solidification rate during casting By increasing the solidification rate during casting, the amount of solid solution of 1n or Sn in the Al matrix increases, and
The material is finely dispersed.
上記固溶量の増大によって、添加元素の犠牲陽極効果が
十分に発揮され、強度向上元素を添加した場合にも安定
して低電位を確保することができる。By increasing the solid solution amount, the sacrificial anode effect of the added element is fully exhibited, and even when a strength-improving element is added, a stable low potential can be ensured.
また、固溶することなく析出した犠牲陽極元素も、上述
するように急冷によって微細化されているので、ろう付
時の加熱によって、容易にＡＪ素素地へ再固溶し、犠牲
陽極効果をさらに向上させる。In addition, the sacrificial anode elements that precipitated without becoming a solid solution have been made fine by rapid cooling as described above, so they can be easily re-dissolved into the AJ base material by heating during brazing, further enhancing the sacrificial anode effect. Improve.
上記した効果は、十分に大きな凝固速度で鋳造した場合
に得られるものである。具体的には、１００”Ｃ／秒未
満では、上記効果は得ることができず、したがって、凝
固速度を１００℃／秒以上とした。The above effects are obtained when casting is performed at a sufficiently high solidification rate. Specifically, if the solidification rate is less than 100"C/sec, the above effect cannot be obtained, so the solidification rate is set to 100"C/sec or more.
なお、凝固方法は特に限定されるものではなく、要は、
上記凝固速度を満足する方法で鋳造するものであればよ
い。具体的には、連続鋳造法、半連続鋳造法、水冷鋳型
による鋳造などをイ列示することができる。Note that the coagulation method is not particularly limited, and the key points are:
Any method may be used as long as it is cast by a method that satisfies the above-mentioned solidification rate. Specifically, a continuous casting method, a semi-continuous casting method, casting using a water-cooled mold, etc. can be listed.
（２）ｌｎ、５ｎ
ＩｎおよびＳｎは、／ｌ素地中に固溶して、電位を卑に
して犠牲陽極効果を発揮する。(2) ln, 5n In and Sn form a solid solution in the /l matrix, lowering the potential and exerting a sacrificial anode effect.
この効果は、Ｉｎが０．００５ｗｔ％未満、Ｓｎが０．
ｌ１ｗｔ％未満の場合には十分に得られない。This effect is due to the fact that In is less than 0.005 wt% and Sn is 0.005 wt%.
If it is less than 11 wt%, sufficient amounts cannot be obtained.
また、Ｉｎを０．１５ｗｔ％を超えて添加すると、自己
腐食速度が大きくなり、かえって防食性を低下させる。Furthermore, if In exceeds 0.15 wt%, the self-corrosion rate will increase, and the corrosion protection will be reduced.
一方、Ｓｎを０．２０ｗｔ％を超えて添加すると、同様
に自己腐食速度が大きくなるとともに、ろう付時に局部
溶解が生じて、耐座屈性が著しく低下する。On the other hand, if Sn is added in an amount exceeding 0.20 wt%, the self-corrosion rate increases as well as local melting occurs during brazing, resulting in a significant decrease in buckling resistance.
このため、Ｉｎ ０．ＯＯ’５〜０．ｌ ５ｗｔ％、Ｓ
ｎ ０．ｌ ｌ〜０．２０ｗｔ％の範囲に限定した。Therefore, In 0. OO'5~0. l 5wt%, S
n 0. It was limited to a range of 1 to 0.20 wt%.
ｆ３１ Ｆｅ 、 ５ｔ
ＦｅおよびＳｆは１．’ｌ 素地中に、Ａｌ２−Ｆｅ系
、八ρ−Ｆｅ −Ｓｉ 系化合物として分散し、フィン
材の室温強度およびろう付時の耐座屈性を向上させる。f31 Fe, 5t Fe and Sf are 1. 'l It is dispersed in the base material as an Al2-Fe system or 8ρ-Fe-Si system compound, and improves the room temperature strength of the fin material and the buckling resistance during brazing.
上記効果は、Ｆｅが０．１０ｗｔ％未満、Ｓｌが０．０
５ｗｔ％未滴の場合には得ることができない。The above effect is that Fe is less than 0.10 wt% and Sl is 0.0
It cannot be obtained if the amount is less than 5 wt%.
また、Ｆｅを１．５ｗｔ％を超えて添加すると、Ｆｅを
含む化合物結晶粒が微細化してろう付時の耐座屈性が低
下するとともに、電位を上昇させる。Further, when Fe is added in an amount exceeding 1.5 wt%, the crystal grains of the compound containing Fe become fine, which reduces the buckling resistance during brazing and increases the potential.
一方、＄１を０．８ｗｔ％を超えて添加すると、材料の
固相線温度が低下し、ろう付時の耐座屈性を低下する。On the other hand, when $1 is added in an amount exceeding 0.8 wt%, the solidus temperature of the material decreases and the buckling resistance during brazing decreases.
このため、ＦｅをＯ−ｌ〜１．５ｗｔ％、Ｓｌを０．０
５〜０．８ｗｔ％の範囲内に限定した。For this reason, Fe is O-l ~ 1.5 wt%, Sl is 0.0
It was limited to a range of 5 to 0.8 wt%.
なお、同様の理由により、さらに、Ｆｅを０．３〜１．
５ｗｔ％、Ｓｌを０．２〜０．８ｗｔ％の範囲内に限定
するのが望ましい。In addition, for the same reason, Fe is further added in the range of 0.3 to 1.
5 wt%, and it is desirable to limit Sl to within the range of 0.2 to 0.8 wt%.
（４）Ｍｎ
Ｍｎは、Ａｌ２−Ｍｎ系化合物として、Ｉｆ素地中に分
散して、室温強度およびろう付時の耐座屈性の向上に寄
与する。(4) Mn Mn is dispersed in the If matrix as an Al2-Mn-based compound and contributes to improving room temperature strength and buckling resistance during brazing.
但し、Ｍｎの添加量が０．１ｗｔ％未満では上記効果は
不十分であり、一方、１．５ｗｔ％を超えて添加すると
、熱伝導性、加工性が低下し、また電位も上昇する。こ
のため、Ｍｎの添加量は、Ｍｎ０．Ｉ〜１．５ｗｔ％の
範囲内とする。However, if the amount of Mn added is less than 0.1 wt%, the above effect is insufficient, while if it is added in excess of 1.5 wt%, the thermal conductivity and workability decrease, and the potential also increases. Therefore, the amount of Mn added is Mn0. It is within the range of I to 1.5 wt%.
（５）Ｚｒ
Ｚｒは、Ａｌ２−Ｚｒ系化、合物として／ｌ素地中に分
散して、ろう付時の耐座屈性とろう付後の強度を向上さ
せる。このＺｒの添加量は０．０５ｗｔ％未満では上記
効果は不十分であり、一方、０．１５ｗｔ％を超えても
効果の向上はなく、しかも加工性が低下するので、０．
０５〜０．１５ｗｔ％の範囲内とする。(5) Zr Zr is dispersed in the Al2-Zr compound as a compound to improve buckling resistance during brazing and strength after brazing. If the amount of Zr added is less than 0.05 wt%, the above effects will be insufficient, while if it exceeds 0.15 wt%, the effect will not improve and workability will deteriorate.
The content should be within the range of 0.05 to 0.15 wt%.
なお、Ａｌ合金、上記成分の他に、通常の製錬などによ
って含まれる不可避の不純物を含むものである。Note that, in addition to the Al alloy and the above-mentioned components, it contains unavoidable impurities that are included due to normal smelting and the like.
［作 用コ
すなわち、本願発明によれば、大きな凝固速度で鋳造す
ることによって／１合金は急冷され、１ｎまたはＳｎが
、Ａρ素地中に十分に固溶して、優れた犠牲陽極効果が
確保される。このため、強度を向上させる元素を十分に
添加しても、所望の犠牲陽極効果が得られ、高強度で、
犠牲陽極効果に優れたフィン材が得られる。[Operations] That is, according to the present invention, the /1 alloy is rapidly cooled by casting at a high solidification rate, and 1n or Sn is sufficiently dissolved in the Aρ matrix to ensure an excellent sacrificial anode effect. be done. Therefore, even if sufficient strength-enhancing elements are added, the desired sacrificial anode effect can be obtained, with high strength and
A fin material with excellent sacrificial anode effect can be obtained.
［実施イ列］ 以下に、この発明の一実施（−Ｐ＋を説明する。[Implementation row] One implementation of the present invention (-P+) will be described below.
表１および表２に示す成分組成を有するへρ合金を溶解
し、鋳造、圧延によって板厚１００μｍのフィン材を得
た。A ρ alloy having the composition shown in Tables 1 and 2 was melted, and a fin material having a thickness of 100 μm was obtained by casting and rolling.
なお、フィン材（試験片）Ｎｏ、Ｉ〜１２およびＮｏ、
２１〜３０は、溶解したＡｌ２合金を、水冷効果を高め
るなどして凝固速度を大きくした半連続鋳造法または連
続鋳造法によって凝固させて得た、本発明方法による実
施例である。In addition, fin material (test piece) No. I to 12 and No.
Examples 21 to 30 are examples of the method of the present invention obtained by solidifying a molten Al2 alloy by a semi-continuous casting method or a continuous casting method in which the solidification rate was increased by increasing the water cooling effect.
一方、フィン材（試験片）Ｎｏ、Ａ−ＨおよびＮｏ、ａ
−ｅは、本発明の製造方法によらない比較イ列であり、
具体的には、溶解したへ！合金を。On the other hand, fin material (test piece) No. A-H and No. a
-e is a comparison series not based on the manufacturing method of the present invention,
Specifically, to the dissolved! Alloy.
従来の凝固速度が小さな半連続鋳造法で凝固させたもの
か、成分組成が本発明の範囲タトのものである。Either the material is solidified by the conventional semi-continuous casting method with a low solidification rate, or the component composition is within the range of the present invention.
なお、得られた各試験片は、真空ろう付を想定して、Ｉ
０−５Ｔｏｒｒの真空中で６００℃にて、５分間保持
した後、１０５℃／秒の冷却速度で冷却した（ろう付後
の冷却を想定）。In addition, each of the obtained test pieces had I
After holding at 600° C. for 5 minutes in a vacuum of 0-5 Torr, it was cooled at a cooling rate of 105° C./sec (assuming cooling after brazing).
各試験片は、犠牲陽極効果を評価するために、ｌ ＮＮ
ａＣβ溶液中で孔食電位（標準カロメル電位： ５ＣＥ
）をＪす定した。また、強度評価のために、弓１張試験
を行った。Each specimen was tested with l NN to evaluate the sacrificial anode effect.
Pitting potential (standard calomel potential: 5CE) in aCβ solution
) was determined as J. In addition, for strength evaluation, a single bow test was conducted.
さらに、実施例、比較例の一邪については、耐座屈性を
評価した。具体的には、４０ｍｍの長さで突ざ出した試
験片を６００℃で５分間保持して、垂下量を測定する耐
サグ試験（垂下試験）を行った。Furthermore, buckling resistance was evaluated for Ichiya of Examples and Comparative Examples. Specifically, a sag resistance test (sagging test) was conducted in which a protruding test piece with a length of 40 mm was held at 600° C. for 5 minutes and the amount of sagging was measured.
上言己評価の結果は、表１および表２に示すように、実
施例の試験片では、得れた犠牲陽極効果、高強度など、
ｉ平価Ｊ頂目のいずれについても良好な［発明の効果コ
以上説明したように、この発明のろう付により製作され
る銘文換器の、１合金製高強度犠牲陽極フィン材の製造
方法のうち第１の発明によれば、Ｉ ｎ ０．００５〜
０．１５ｗｔ％、Ｓ ｎ ０．ｌ ｌ〜０．２０ｗｔ％
の少なくとも１種と、Ｓｊ ０．０５〜０．８ｗｔ％
、Ｆｅ０１１〜ｌ 、 ５ｗｔ％を含有し、残部がＡ、
Ｑおよび不可避の不純物からなるへβ合金を、１００℃
／秒以上の凝固速度で鋳造するので、犠牲陽極効果を発
揮する元素の添加量を増大させることなく、優れた犠牲
陽極効果を確保でき、しかも、強度向上元素の増量によ
って、高強度が得られるという効果がある。したがって
、このフィン材によって得られる勉交換器は、軽量で長
寿命であるという効果がある。As shown in Tables 1 and 2, the results of the above-mentioned self-evaluation show that the test specimens of the examples had the sacrificial anode effect, high strength, etc.
[Effects of the Invention] As explained above, among the methods for manufacturing the high-strength sacrificial anode fin material made of alloy 1 for the inscription exchanger manufactured by brazing according to the present invention, According to the first invention, I n 0.005~
0.15wt%, S n 0. l l~0.20wt%
and at least one kind of Sj 0.05 to 0.8 wt%
, Fe011~l, 5wt%, the balance is A,
β alloy consisting of Q and inevitable impurities was heated at 100°C.
Since casting is performed at a solidification rate of 1/sec or more, an excellent sacrificial anode effect can be ensured without increasing the amount of elements that exert the sacrificial anode effect, and high strength can be obtained by increasing the amount of strength-enhancing elements. There is an effect. Therefore, the exchanger obtained using this fin material has the advantage of being lightweight and having a long life.
また、第２の発明によ・れば、Ｉ ｎ ０．００５〜０
．１５ｗｔ％、Ｓ ｎ ０．ｌ ｌ 〜０．２０ｗｔ％
の少なくとも１種と、Ｓｌ ０．０５〜０．８ｗｔ％
、Ｆｅ ０．１〜１．５ｗｔ％を含有し、さらに、Ｍｎ
０．１〜１．５ｗｔ％、Ｚｒ０．０５〜０．１５ｖ
ｔ％の１種または２種を含有し、残部が、ｌおよび不可
避の不純物からなるＡρ金合金、１００℃／秒以上の凝
固速度で鋳造するので、上記効果に加え、室温強度の向
上および耐座屈性の向上が得られるという効果がある。Moreover, according to the second invention, I n 0.005 to 0
．． 15wt%, S n 0. l l ~0.20wt%
and at least one kind of Sl, 0.05 to 0.8 wt%
, contains 0.1 to 1.5 wt% of Fe, and further contains Mn
0.1-1.5wt%, Zr0.05-0.15v
Aρ gold alloy containing one or two types of t% and the remainder consisting of l and unavoidable impurities.Since it is cast at a solidification rate of 100°C/sec or more, in addition to the above effects, it has improved room temperature strength and resistance. This has the effect of improving buckling properties.
Claims (1)
０．２０ｗｔ％の少なくとも１種と、 Ｆｅ０．１〜１．５ｗｔ％、Ｓｉ０．０５〜０．８ｗｔ
％を含有し、残部がＡｌおよび不可避の不純物からなる
Ａｌ合金を、１００℃／秒以上の凝固速度で鋳造するこ
とを特徴とするろう付により製作される熱交換器のＡｌ
合金製高強度犠牲陽極フィン材の製造方法 ２ Ｉｎ０．００５〜０．１５ｗｔ％、Ｓｎ０．１１〜
０．２０ｗｔ％の少なくとも１種と、 Ｆｅ０．１〜１．５ｗｔ％、Ｓｉ０．０５〜０．８ｗｔ
％を含有し、さらに、 Ｍｎ０．１〜１．５ｗｔ％、Ｚｒ０．０５〜０．１５ｗ
ｔ％の１種または２種を含有し、残部がＡｌおよび不可
避の不純物からなるＡｌ合金を、１００℃／秒以上の凝
固速度で鋳造することを特徴とするろう付により製作さ
れる熱交換器のＡｌ合金製高強度犠牲陽極フィン材の製
造方法[Claims] 1 In0.005~0.15wt%, Sn0.11~
0.20wt% of at least one species, Fe0.1-1.5wt%, Si0.05-0.8wt
%, with the remainder consisting of Al and unavoidable impurities.
Manufacturing method 2 of alloy high strength sacrificial anode fin material In0.005~0.15wt%, Sn0.11~
0.20wt% of at least one species, Fe0.1-1.5wt%, Si0.05-0.8wt
%, and further contains Mn0.1~1.5wt%, Zr0.05~0.15w
A heat exchanger manufactured by brazing, characterized by casting an Al alloy containing one or two types of t% and the remainder consisting of Al and unavoidable impurities at a solidification rate of 100°C/sec or more. Method for manufacturing high-strength sacrificial anode fin material made of Al alloy
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02135674A JP3085964B2 (en) | 1990-05-25 | 1990-05-25 | Method of manufacturing high strength sacrificial anode fin material made of aluminum alloy for heat exchanger manufactured by brazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02135674A JP3085964B2 (en) | 1990-05-25 | 1990-05-25 | Method of manufacturing high strength sacrificial anode fin material made of aluminum alloy for heat exchanger manufactured by brazing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0433769A true JPH0433769A (en) | 1992-02-05 |
| JP3085964B2 JP3085964B2 (en) | 2000-09-11 |
Family
ID=15157277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02135674A Expired - Fee Related JP3085964B2 (en) | 1990-05-25 | 1990-05-25 | Method of manufacturing high strength sacrificial anode fin material made of aluminum alloy for heat exchanger manufactured by brazing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3085964B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002256403A (en) * | 2001-02-28 | 2002-09-11 | Mitsubishi Alum Co Ltd | Method of producing fin material for use in heat exchanger |
| CN114059072A (en) * | 2021-11-11 | 2022-02-18 | 青岛双瑞海洋环境工程股份有限公司 | Zinc-free aluminum alloy sacrificial anode |
-
1990
- 1990-05-25 JP JP02135674A patent/JP3085964B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002256403A (en) * | 2001-02-28 | 2002-09-11 | Mitsubishi Alum Co Ltd | Method of producing fin material for use in heat exchanger |
| CN114059072A (en) * | 2021-11-11 | 2022-02-18 | 青岛双瑞海洋环境工程股份有限公司 | Zinc-free aluminum alloy sacrificial anode |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3085964B2 (en) | 2000-09-11 |
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