JPS63180394A - Aluminum brazing sheet for non-corrosive flux brazing - Google Patents
Aluminum brazing sheet for non-corrosive flux brazingInfo
- Publication number
- JPS63180394A JPS63180394A JP1314687A JP1314687A JPS63180394A JP S63180394 A JPS63180394 A JP S63180394A JP 1314687 A JP1314687 A JP 1314687A JP 1314687 A JP1314687 A JP 1314687A JP S63180394 A JPS63180394 A JP S63180394A
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- content
- corrosive
- aluminum
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005219 brazing Methods 0.000 title claims abstract description 79
- 230000009972 noncorrosive effect Effects 0.000 title claims abstract description 19
- 230000004907 flux Effects 0.000 title claims description 22
- 229910052782 aluminium Inorganic materials 0.000 title claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims abstract description 31
- 239000011162 core material Substances 0.000 claims abstract description 21
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 9
- 229910018125 Al-Si Inorganic materials 0.000 claims abstract 3
- 229910018520 Al—Si Inorganic materials 0.000 claims abstract 3
- 239000000945 filler Substances 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 10
- 229910052751 metal Inorganic materials 0.000 abstract description 9
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 229910001092 metal group alloy Inorganic materials 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 14
- 230000006866 deterioration Effects 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
- B23K35/286—Al as the principal constituent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は非腐蝕性フラックスろう併用アルミニウムブレ
ージングシートに関し、さらに詳しくは、Ｋ−Ｆ−Ａｌ
系の非腐蝕性フラックスを使用するろう付に適用するこ
とができるアルミニウムブレージングシートに関する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to an aluminum brazing sheet combined with non-corrosive flux brazing, and more specifically, to a K-F-Al brazing sheet.
The present invention relates to an aluminum brazing sheet that can be applied to brazing using a non-corrosive flux of the system.
［従来技術］
一般的に、Ｋ−Ｆ−Ａｌ系の非腐蝕性フラックスは、ろ
う付後のフラッグス残査に腐蝕性がなく、後処理が不要
なことから自動車ラジェータ、自動車エアコン用熱交換
器等のろう付性に多く使用されてきているが、この場合
、従来の塩化物、フッ化物系フラックスに比較するとろ
う付材料中のＭｇ含有量増大によるろう付性の劣化が大
きく、被ろう付材料に制約を受ける。[Prior art] In general, K-F-Al-based non-corrosive fluxes are used in automobile radiators and heat exchangers for automobile air conditioners because the flag residue after brazing is non-corrosive and no post-treatment is required. However, in this case, compared to conventional chloride and fluoride fluxes, the brazing property deteriorates significantly due to the increased Mg content in the brazing material, and the brazing properties are reduced. Limited by materials.
また、アルミニウム材料における強度向上成分としては
Ｍｇが一般的であるが、Ｋ−Ｆ’−Ａｌ系フラッグスで
はろう付性の面から含有量に制約があるため、高強度材
料の使用に対しては配慮が必要である。Additionally, Mg is commonly used as a strength-improving component in aluminum materials, but since there are restrictions on the content in K-F'-Al flags from the viewpoint of brazing properties, it is not recommended for use with high-strength materials. Consideration is required.
被ろう付材中のＭｇ含有量の許容量を拡大するためには
、もっばら、フラックス自体の改良が試みられてきてい
るが、−充分な改良には至ってはいない。このフラック
スの改良として、例えば、特開昭６０−１８４４９０号
公報および特開昭６１−０９９５６９号公報がある。In order to expand the permissible Mg content in the brazing material, attempts have been made to improve the flux itself, but sufficient improvements have not yet been achieved. Improvements to this flux are disclosed, for example, in JP-A-60-184490 and JP-A-61-099569.
また、Ｋ−Ｆ−Ａｌ系の非腐蝕性フラックスを使用する
ろう付に用いられるアルミニウム材料としては、Ｍｇを
含有しない材料が主体であるが、材料の薄肉化の傾向か
ら高強度化の要請が強く、早急な対応が必要である。In addition, the aluminum materials used for brazing using K-F-Al-based non-corrosive flux are mainly materials that do not contain Mg, but there is a demand for higher strength due to the trend toward thinner materials. A strong and immediate response is required.
［発明が解決しようとする問題点］
本発明は上記に説明したような従来技術の種々の問題点
に鑑み、本発明者が鋭意研究を行った結果、Ｋ−Ｆ−Ａ
ｌ系非腐蝕系フラヅクスによるろう付に使用されるアル
ミニウム材料として、Ｍｇ含有量の許容量を増大させて
、Ｍｇ含有による高強度のアルミニウム合金とすること
により、材料の薄肉化を可能とすることができる非腐蝕
性フラックスろう併用アルミニウムブレージングソート
を開発したのである。[Problems to be Solved by the Invention] In view of the various problems of the prior art as explained above, the present inventor has conducted extensive research, and as a result, the K-F-A
As an aluminum material used for brazing with l-based non-corrosive flux, the material can be made thinner by increasing the allowable amount of Mg content and creating a high-strength aluminum alloy with Mg content. We have developed a non-corrosive aluminum brazing sort combined with flux brazing.
［問題点を解決するための手段］
本発明に係る非腐蝕性フラックスろう材用アルミニウム
ブレーノングシートの特徴とするところは、Δ１−９ｔ
系ろう材
Ｍｇ ０．２〜１．５ｗｔ％
を含有し、残部Ａｌからなるアルミニウム合金芯材とよ
りなるブレージングソートであって、ろう材、芯材の少
なくともいずれか一方にＢｅ Ｏ，００１〜０．０５ｗ
ｔ％
を含有させることにある。[Means for Solving the Problems] The feature of the non-corrosive aluminum brazing sheet for flux brazing material according to the present invention is that Δ1-9t
A brazing sort consisting of an aluminum alloy core material containing 0.2 to 1.5 wt% of Mg as a brazing filler metal and the remainder being Al, wherein at least one of the brazing filler metal and the core material contains BeO,001 to 0. .05w
The purpose is to contain t%.
本発明に係る非腐蝕性フラックスろう併用アルミニウム
ブレージングシートについて、以下詳細に説明する。The non-corrosive flux-brazed aluminum brazing sheet according to the present invention will be described in detail below.
本発明に係る非腐蝕性フラックスろう併用アルミニウム
ブレージングノートにおいては、基本的にはＢｅを含有
させることにより、Ｍｇとに−Ｆ−Ａｌ系フラックスの
反応によるフラックスの活性劣化を抑制することにより
、Ｍｇ含有量の許容量の増大を図り高強度化を容易にす
るものである。In the aluminum brazing notebook combined with non-corrosive flux brazing according to the present invention, basically by containing Be, the activity deterioration of the flux due to the reaction of -F-Al system flux with Mg is suppressed, so that Mg This is intended to increase the allowable content and facilitate high strength.
即ち、Ｂｅは酸素との親和力が強く、Ｍｇより優先して
酸化されるので、このＢｅの酸化膜の生成によりＭｇと
フラックスの間の反応を抑制するもので、ブレージング
シートのろう材或いは芯材の少なくとしいずれか一方に
Ｂｅを含有させることにより、ｒ３ｅ酸化膜によるＭｇ
のフラックスとの接触°反応を低減し、フラックスの活
性劣化を抑制する効果を大きく増大したものである。In other words, since Be has a strong affinity with oxygen and is oxidized preferentially than Mg, the formation of an oxide film of Be suppresses the reaction between Mg and flux, and is used as a brazing sheet brazing material or core material. By containing Be in either one of the Mg
The effect of reducing the contact reaction with the flux and suppressing the deterioration of the flux's activity has been greatly increased.
本発明に係る非腐蝕性フラックスろう併用アルミニウム
ブレージングシートにおいて、アルミニウム合金芯材の
Ｍｇ含有量およびろう材、芯材のいずれか一方に含有さ
せるＢｅの含有量について説明する。In the aluminum brazing sheet combined with a non-corrosive flux and brazing material according to the present invention, the Mg content of the aluminum alloy core material and the Be content contained in either the brazing material or the core material will be explained.
ＢｅはＭｇ含１Ｋｍ増大によるろう付性の劣化を抑制す
る効果を汀する元素であり、含有量がＯ，０ＱＩＷＬ％
未満ではこの効果は不充分であり、また、０．０５ｗｔ
％を越えて含有されると効果は飽和し、かつ、環境汚染
上好ましくない。よって、Ｂｅ含有但はＱ、ＱＱｌ−０
，０５ｗｔ％とする。Be is an element that suppresses the deterioration of brazability due to an increase in Mg content of 1 Km, and the content is O,0QIWL%.
If it is less than 0.05wt, this effect is insufficient, and if it is less than 0.05wt
If the content exceeds 1%, the effect will be saturated and this is not preferable in terms of environmental pollution. Therefore, Be-containing Q, QQl-0
,05wt%.
Ｍｇは強度向上に効果を有する元素であり、含有量が０
．２ｗｔ％未満ではＢｅを含有させる効果が非常に少な
く、また、１．５ｗｔ％を越えて含有されるとＢｅを含
有させてもろう付性劣化を抑制することができず、かっ
、ろう何時のろう材の侵蝕が過大となる。よって、Ｍｇ
含有量は０．２〜１．５ｗｔ％とする。Mg is an element that is effective in improving strength, and its content is 0.
．． If the Be content is less than 2 wt%, the effect of including Be will be very small, and if the Be content exceeds 1.5 wt%, it will not be possible to suppress the deterioration of brazing properties even if Be is included, and Excessive corrosion of the filler metal. Therefore, Mg
The content is 0.2 to 1.5 wt%.
なお、上記に説明した含有成分以外に、Ｇｕ、Ｓｉ、Ｍ
ｎ、Ｚｒ、Ｃｒ、Ｔｉ等を含有させることができる。In addition to the components explained above, Gu, Si, M
n, Zr, Cr, Ti, etc. can be contained.
Ｃｕは強度の向上、電位を責とする効果を存する元素で
あり、１．０ｗｔ％を越えて含有されるとＭｇとの共存
により耐蝕性の劣化、ろう材侵蝕の増大を招く。よって
、Ｃｕ含有ｍは１．ｈｔ％以下とする。Cu is an element that has the effect of improving strength and controlling electric potential, and when contained in an amount exceeding 1.0 wt%, coexistence with Mg causes deterioration of corrosion resistance and increase of corrosion of the brazing material. Therefore, Cu content m is 1. ht% or less.
ＳｉはＭｇとの共存により時効硬化性を付与し、強度の
向上に効果を有する元素であり、含有量が１．５ｗｔ％
を越えて含有されると、溶融温度の低下を沼き、ろう材
の侵蝕が増大する。よって、Ｓｉ含有Ｍはｌ 、 ５ｗ
ｔ％以下とする。Si is an element that imparts age hardenability when coexisting with Mg and is effective in improving strength, and the content is 1.5 wt%.
If the content exceeds 100%, the melting temperature decreases and corrosion of the brazing filler metal increases. Therefore, Si-containing M is l, 5w
t% or less.
Ｍｎは強度の向上、耐座屈性の向上、電位を貴とする効
果を有する元素であり、含有量が１．５ｗｔ％を越えて
含有されると巨大化合物が生成する恐れがあり、また、
鋳造性、加工性を阻害する。よって、Ｍｎ含有量は１．
５★ｔ％以下とする。Mn is an element that has the effect of improving strength, improving buckling resistance, and making the potential nobler. If the content exceeds 1.5 wt%, there is a risk that giant compounds will be formed.
Impairs castability and workability. Therefore, the Mn content is 1.
5★t% or less.
Ｚｒ、Ｃｒ、Ｔｉは耐座屈強度の向上、ろう材の侵蝕を
抑制する効果を有する元素であり、０．５ｗｔ％を越え
て含有されると巨大化合物を生成し、鋳造性、加工性を
阻害する。よって、Ｚｒ、 Ｃｒ、 Ｔｉ含有量は、０
、５ｗｔ％以下とする。Zr, Cr, and Ti are elements that have the effect of improving buckling strength and suppressing corrosion of the brazing filler metal, and if they are contained in an amount exceeding 0.5 wt%, a giant compound is formed, which impairs castability and workability. inhibit. Therefore, the Zr, Cr, and Ti contents are 0
, 5wt% or less.
［実 施 例］
本発明に係る非腐蝕性フラックスろう何周アルミニウム
ブレージングシートの実施例を説明する。[Example] An example of a non-corrosive flux brazed aluminum brazing sheet according to the present invention will be described.
実施例
第１表にろう材、第２表に芯材の含有成分および含有割
合を示してあり、このろう材および芯材を溶解鋳造し、
クラッド圧延（熱間圧延）、冷間圧延により０．３２ｔ
のブレージングシートを製作した。ろう材は芯材の片面
にクラッドし、クラツド率は１０％である。なお、ブレ
ージングシートのろう材と芯材の組み合わせは第３表に
示す。Examples Table 1 shows the components and content ratios of the brazing material, and Table 2 shows the content of the core material.The brazing material and the core material were melted and cast,
0.32t by clad rolling (hot rolling) and cold rolling
A brazing sheet was produced. The brazing filler metal is clad on one side of the core material, and the cladding ratio is 10%. The combinations of brazing sheets and core materials are shown in Table 3.
このように製作したブレージングシートを供試材として
、第１図（ａＸｂ）に示すような間隙充填性によるろう
付試験およびろう何役の引張試験を実施した（第１図に
おいて、板３と２（Ａ３００３．ｌ。２ｔ）をＴ型に成
形し、右端にｌφの棒を置いた。）。Using the brazing sheet produced in this way as a test material, a brazing test based on the gap filling property and a tensile test using the brazing function as shown in Fig. 1 (aXb) were conducted (in Fig. 1, plates 3 and 2 ( A3003.l.2t) was formed into a T-shape, and a lφ rod was placed on the right end.).
試験片の形状は第１図（ｃ）に示すＪＩＳＳ号試験片４
である。The shape of the test piece is JISS No. 4 test piece shown in Figure 1(c).
It is.
ろう付条件 ろう付温度、保持時間 ６００℃×３分。Brazing conditions Brazing temperature, holding time: 600℃ x 3 minutes.
ろう付写囲気 Ｎ、ガスで露点−４５℃。Brazing atmosphere N, gas dew point -45℃.
フラックス ＫＦ−ＡｌＦｆｆ系フラッグス。Flux KF-AlFff series flags.
塗布量 ５ｇ／が 第４表に間隙充填性、ろう何役引張強さを示す。Coating amount: 5g/ Table 4 shows the gap filling properties and tensile strength under brazing.
Ｎｏ、１〜５．７．９はろう材にＢｅ含有、Ｎ０１８は
芯材にＢｅ含有、Ｎｏ、６はろう材、芯材の両方にＢｅ
含有の本発明に係る非腐蝕性フラックスろう何周アルミ
ニウムブレージングシートの例であり、良好なろう付性
（間隙充填長さ）が得られろ。No. 1 to 5.7.9 contain Be in the brazing material, No. 6 contains Be in the core material, and No. 6 contains Be in both the brazing material and the core material.
This is an example of an aluminum brazing sheet containing a non-corrosive flux solder according to the present invention, and good brazing properties (gap filling length) can be obtained.
Ｎｏ、１０はろう材がＢｅ含有であるか、芯材組成が本
発明の範囲外の比較材で、Ｎｏ、 ｌ ｌのＢｅを含有
しないものとの比較により明らかであるが、この芯材組
成ではろう材のＢｅ含有による効果は殆どない（Ｂｅの
含有がな（てもろう付性は良好）。No. 10 is a comparison material in which the brazing material contains Be or the core material composition is outside the scope of the present invention, and it is clear from the comparison with No. 1 that does not contain Be, that this core material composition In this case, there is almost no effect due to the Be content in the brazing material (the brazing properties are good even if there is no Be content).
Ｎｏ、 １２〜！７はろう材、芯材共Ｂｅを含有しない
比較材で、芯材中のＭｇ含有量の増大によりろう付性の
劣化が顕著である。No, 12~! No. 7 is a comparative material in which neither the brazing material nor the core material contains Be, and the brazing property deteriorates significantly due to an increase in the Mg content in the core material.
Ｎｏ、 ｌ ８はろう材中のＢｅ含有量が本発明の範囲
の下限未満のもので、含有効果は若干認められるものの
、その程度は小さい。In No. 18, the Be content in the brazing filler metal is less than the lower limit of the range of the present invention, and although some effects of inclusion are observed, the extent is small.
（注）間隙充填長さ 闘
ろう何役引張強さｋｇｆ／間２
［発明の効果］
以上説明したように、本発明に係る非腐蝕性フラックス
ろう併用アルミニウムブレーンングソートは上記の構成
であるから、芯材中のＭｇ含有量増大によるろう付劣化
の抑制効果が大きく、Ｋ−Ｆ−Ａｌ系フラッグスろう付
性のブレージングシートとして高強度材の使用を可能に
できるという優れた効果を有する。(Note) Gap filling length Brazing tensile strength kgf/distance 2 [Effects of the invention] As explained above, the aluminum brazing sort combined with non-corrosive flux brazing according to the present invention has the above configuration. The increase in Mg content in the core material has a great effect of suppressing brazing deterioration, and has the excellent effect of enabling the use of high-strength materials as brazing sheets for K-F-Al flags brazing properties.
第１図は実施例における供試材の形状を示す概略図であ
る。FIG. 1 is a schematic diagram showing the shape of a sample material in an example.
Claims (1)
りなるブレージングシートであって、ろう材、芯材の少
なくともいずれか一方に Ｂｅ０．００１〜０．０５ｗｔ％ を含有させることを特徴とする非腐蝕性フラックスろう
付用アルミニウムブレージングシート。[Scope of Claims] A brazing sheet comprising an Al-Si brazing material and an aluminum alloy core material containing 0.2 to 1.5 wt% Mg and the remainder being Al, the brazing sheet comprising at least the brazing material and the core material. An aluminum brazing sheet for non-corrosive flux brazing, characterized in that one of the sheets contains 0.001 to 0.05 wt% Be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1314687A JPS63180394A (en) | 1987-01-22 | 1987-01-22 | Aluminum brazing sheet for non-corrosive flux brazing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1314687A JPS63180394A (en) | 1987-01-22 | 1987-01-22 | Aluminum brazing sheet for non-corrosive flux brazing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63180394A true JPS63180394A (en) | 1988-07-25 |
Family
ID=11825022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1314687A Pending JPS63180394A (en) | 1987-01-22 | 1987-01-22 | Aluminum brazing sheet for non-corrosive flux brazing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63180394A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0569184A (en) * | 1991-08-30 | 1993-03-23 | Nippon Light Metal Co Ltd | Brazing sheet excellent in corrosion resistance |
| CN113369618A (en) * | 2021-07-08 | 2021-09-10 | 烟台市固光焊接材料有限责任公司 | Brazing process of ultrathin liquid cooling plate |
-
1987
- 1987-01-22 JP JP1314687A patent/JPS63180394A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0569184A (en) * | 1991-08-30 | 1993-03-23 | Nippon Light Metal Co Ltd | Brazing sheet excellent in corrosion resistance |
| CN113369618A (en) * | 2021-07-08 | 2021-09-10 | 烟台市固光焊接材料有限责任公司 | Brazing process of ultrathin liquid cooling plate |
| CN113369618B (en) * | 2021-07-08 | 2022-09-09 | 烟台市固光焊接材料有限责任公司 | Brazing process of ultrathin liquid cooling plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR0107965B1 (en) | fin load material for heat exchanger, its production process and the process of forming a brazed brazed article. | |
| JPS63180394A (en) | Aluminum brazing sheet for non-corrosive flux brazing | |
| JP2003117678A (en) | Composite material for brazing and brazed product using the same | |
| JP2002066786A (en) | Manufacturing method of high corrosion resistant aluminum alloy matching material | |
| JP2000317674A (en) | Brazing sheet having high strength and high corrosion resistance and excellent brazing property | |
| JPH1088265A (en) | Aluminum alloy fin material for heat exchanger, excellent in sacrificial anode effect as well as in strength after brazing | |
| JPH0797651A (en) | Production of aluminum alloy brazing sheet for heat exchanger and heat exchanger made of aluminum alloy | |
| JP2011000610A (en) | Aluminum alloy cladding material for tube for heat exchanger, and heat exchanger core using the same | |
| JPH01152236A (en) | Al alloy for connector | |
| RU2085607C1 (en) | Deformable thermally cryogenic unreinforced aluminium- based alloy | |
| JP2000153389A (en) | Brazing filler metal, and brazed body | |
| JPS6296637A (en) | Aluminum alloy-clad material for heat exchanger | |
| JPH0273942A (en) | Corrosion-resisting aluminum alloy for heat exchanger | |
| JPS613876A (en) | Copper alloy having excellent corrosion resistance and its surface treatment | |
| JP2684403B2 (en) | Composite wire for self-shielded arc welding for refractory steel | |
| JP2577714B2 (en) | Cr containing arc welding rod | |
| JP2813490B2 (en) | Aluminum brazing sheet | |
| JPH0122078B2 (en) | ||
| JP2768393B2 (en) | Aluminum alloy for heat exchanger fin material with excellent strength after brazing and sacrificial anode effect | |
| JPH0195892A (en) | Aluminum brazing material for brazing with noncorrosive flux | |
| JP2000202681A (en) | Aluminum alloy fin material for heat exchanger excellent in brazability | |
| JP2813492B2 (en) | Aluminum brazing sheet | |
| JPH0748643A (en) | Aluminum alloy casting material | |
| JPH02142672A (en) | Manufacture of aluminum heat exchanger | |
| JPH0718358A (en) | High strength aluminum alloy fin material for heat exchanger |