JPH02251394A - Aluminum alloy brazing material - Google Patents
Aluminum alloy brazing materialInfo
- Publication number
- JPH02251394A JPH02251394A JP6991189A JP6991189A JPH02251394A JP H02251394 A JPH02251394 A JP H02251394A JP 6991189 A JP6991189 A JP 6991189A JP 6991189 A JP6991189 A JP 6991189A JP H02251394 A JPH02251394 A JP H02251394A
- Authority
- JP
- Japan
- Prior art keywords
- brazing
- brazing material
- aluminum alloy
- alloy brazing
- filler metal
- 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
- 238000005219 brazing Methods 0.000 title claims abstract description 53
- 239000000463 material Substances 0.000 title claims abstract description 31
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 16
- 239000002184 metal Substances 0.000 abstract description 16
- 239000000945 filler Substances 0.000 description 15
- 238000002844 melting Methods 0.000 description 14
- 230000008018 melting Effects 0.000 description 14
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 238000005304 joining Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000010949 copper Substances 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000001192 hot extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Metal Extraction Processes (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明はアルミニウム合金ろう材、特に接合部材にア
ルミニウム合金鋳物が含まれる場合のろう付に好適に用
いられるアルミニウム合金ろう材に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an aluminum alloy brazing material, and particularly to an aluminum alloy brazing material suitably used for brazing when an aluminum alloy casting is included in a joining member.
従来の技術
アルミニウムまたはその合金からなる接合部材を相互に
ろう付する場合、ろう材としてＡρ−３ｔ系のものが従
来より用いられている。ところで、例えば、展伸材と鋳
物材とのろう付により形成される自動車用のアルミニウ
ム製エアーインテークマニホールドのように、接合部材
に鋳物材が含まれる場合には、鋳物材の融点が概して低
いためろう材としても融点の低いものを用いる必要があ
る。そこで、かかるろう付においては従来、ＡＱ−３ｔ
系合金に亜鉛及び銅を添加含有して低融点化を図ったろ
う材が用いられており、その代表例としては現有の最低
融点ろう材たる４２４５合金（代表組成ＡΩ−１０ｗｔ
％５ｉ−１０ｖｔ％Ｚｎ−３ｗｔ％Ｃｕ）がある。2. Description of the Related Art When joining members made of aluminum or its alloy are brazed to each other, an Aρ-3t type brazing material has conventionally been used. By the way, when the joining member includes a cast material, such as an aluminum air intake manifold for an automobile that is formed by brazing a wrought material and a cast material, the melting point of the cast material is generally low. It is also necessary to use a brazing material with a low melting point. Therefore, in such brazing, AQ-3t
A brazing filler metal made by adding zinc and copper to a base alloy to lower the melting point is used, and a typical example is the 4245 alloy (representative composition AΩ-10wt), which is the lowest melting point brazing filler metal in existence.
%5i-10vt%Zn-3wt%Cu).
発明が解決しようとする課題
しかしながら、このようなろう材は多量の銅が含有され
ているため加工性が極めて悪く、板材またはプレージン
グシートの形状を得ることが困難でろう材としての適用
に限界があった。Problems to be Solved by the Invention However, since such a brazing filler metal contains a large amount of copper, its workability is extremely poor, and it is difficult to obtain the shape of a plate or plating sheet, which limits its application as a brazing filler metal. was there.
しかも耐食性にも劣り、ろう付後にろう材部分から腐食
を生じて製品の寿命低下を来たすというような欠点もあ
った。また、低融点化は図れるものの、固相線温度から
液相線温度までの温度範囲が広いため（例えば前述の４
２４５合金代表組成では固相線温度：５１０℃、液相線
温度：５６０℃）、ろう流動に先立って拡散が行われた
り、流動性が必要以上に増してろう垂れを生じたりして
充分なフィレット形成が行われ難く、ひいては接合部材
の確実かつ強固な接合を達成できない虞れもあった。Moreover, it has a disadvantage that it has poor corrosion resistance, and corrosion occurs from the brazing material after brazing, resulting in a shortened product life. In addition, although it is possible to lower the melting point, the temperature range from the solidus temperature to the liquidus temperature is wide (for example, the above-mentioned 4
In the typical composition of 245 alloy, solidus temperature: 510°C, liquidus temperature: 560°C), diffusion may occur prior to solder flow, or fluidity may increase more than necessary, causing solder sag. Fillet formation is difficult to be performed, and there is also a possibility that reliable and strong joining of the joining members cannot be achieved.
この発明は、かかる欠点を解消するためになされたもの
であって、融点が低いのは勿論のこと、加工性、耐食性
にも優れ、かつ固相線温度と液相線温度との温度差が小
さく拡散やろう垂れの発生を防止しえて、ろう付性に優
れたアルミニウム合金ろう材の提供を目的とする。This invention was made to eliminate such drawbacks, and it has a low melting point, excellent workability and corrosion resistance, and a temperature difference between solidus temperature and liquidus temperature. The purpose of the present invention is to provide an aluminum alloy brazing material that can prevent small diffusion and solder dripping and has excellent brazing properties.
課題を解決するための手段
上記目的は、Ｓｉ：６．０〜１５．０νｔ％、Ｚｎ ：
６． Ｏ〜１５． ０ｗｔ％、Ｂｅ：０．５〜２
、０ｗｔ％を含有し、あるいはさらにＢｉ：０゜００２
〜０．３νｔ％を含有し、残部アルミニウム及び不可避
不純物よりなるアルミニウム合金ろう材によって達成さ
れる。Means for Solving the Problems The above objectives are as follows: Si: 6.0 to 15.0 νt%, Zn:
6. O~15. 0wt%, Be: 0.5-2
, 0 wt%, or further Bi: 0°002
This is achieved by using an aluminum alloy brazing material containing ~0.3vt%, with the balance consisting of aluminum and unavoidable impurities.
本発明るう材における各元素の添加意義と限定理由につ
いて説明すると、Ｓｔはろう材の融点を低下させるとと
もに流動性を高めるのに必要なものである。しかし、そ
の含有量が６．０ｗｔ％未満ではそれらの効果に乏しく
、逆に１５、０ｗｔ％を超えて含有されると却って融点
の急激な上昇を招き、ろう材として機能しえなくなる。To explain the significance of adding each element in the filler metal of the present invention and the reason for its limitation, St is necessary to lower the melting point of the brazing filler metal and to increase its fluidity. However, if the content is less than 6.0 wt%, these effects will be poor, and if the content exceeds 15.0 wt%, the melting point will rise sharply, making it impossible to function as a brazing filler metal.
Ｓｉの特に好ましい含有量は８〜１２ｗｔ％である。A particularly preferred content of Si is 8 to 12 wt%.
２口もろう材の低融点化に寄与するものである。しかし
、その含有量が６．０ｗ１％未満ではその効果に乏しく
、逆に１５．０ｗｔ％を超えて含有されると加工性の悪
化を来たす。特に好ましいＺｎ含有量は１０〜１４ｖｔ
％である。The two holes also contribute to lowering the melting point of the brazing filler metal. However, if the content is less than 6.0w1%, the effect will be poor, and if the content exceeds 15.0wt%, workability will deteriorate. Particularly preferable Zn content is 10 to 14vt.
%.
Ｂｅもやはりろう材の融点を低下させるとともに流動性
を高めるのに必要なものである。しかし、その含有量が
０．５νｔ％未満ではその効果が十分でなく、逆に２．
０ｗｔ％を超えても該効果の格別な増大を望めないばか
りか、却ってその効果が減少傾向となる。Ｂｅの特に好
ましい含有量は０．８〜】２． ５ｖｔ９６である。Be is also necessary for lowering the melting point of the brazing filler metal and increasing its fluidity. However, if the content is less than 0.5 νt%, the effect is not sufficient, and on the contrary, 2.
Even if it exceeds 0 wt%, not only can no particular increase in the effect be expected, but on the contrary, the effect tends to decrease. A particularly preferable Be content is 0.8 to 2. It is 5vt96.
上記各必須元素に加えて任意的に添加含有されるＢｉは
、ろう材の濡れ住改善に有効なものである。しかし０．
００２ｗｔ％未満ではその効果に乏しく、逆に０． ３
ｗｔ％を超えても該効果の格別な増大を期待できない。Bi, which is optionally added and contained in addition to the above-mentioned essential elements, is effective in improving the wettability of the brazing material. But 0.
If it is less than 0.002 wt%, the effect will be poor; 3
Even if it exceeds wt%, no particular increase in the effect can be expected.
好ましいＢｉの含有量は０．０２〜０．１ｗｔ％である
。The preferred Bi content is 0.02 to 0.1 wt%.
なお、上記以外に不純物として他の元素が含有されてい
ても良い。例えばＣｕは１．０νｔ％程度以下であれば
本発明の効果に悪影響を及ぼさないため、この範囲で不
純物として含有が許容される。Note that other elements may be contained as impurities in addition to the above. For example, Cu does not adversely affect the effects of the present invention if it is about 1.0 νt% or less, so its inclusion as an impurity is allowed within this range.
本発明に係るろう材は加工性が良いことから、その製造
方法については特に限定するものではない。従って、例
えば常法に従う押出法によって線材に押出しても良く、
常法に従う熱間圧延、冷間圧延によって板材やプレージ
ングシートに製作しても良い。Since the brazing material according to the present invention has good workability, there are no particular limitations on the manufacturing method. Therefore, for example, it may be extruded into a wire by a conventional extrusion method,
It may be manufactured into a plate material or plating sheet by hot rolling or cold rolling according to conventional methods.
発明の効果
この発明に係るアルミニウム合金ろう材は、各元素の所
定範囲の組合せによって加工性に極めて優れたものとな
しえ、線材、板材またはプレージングシート等各種の形
状に容易に加工することができる。従って接合部材の形
状や接合部の場所などに応じて、ろう材として最適形態
を選択採用することができ、その利用範囲の拡大化、ろ
う付作業の簡素化を図りうる。さらに耐食性にも優れた
ものとなしうるから、ろう付後にろう付部分から腐食を
生じる不都合を解消でき、長寿命のろう付品の提供が可
能となる。Effects of the Invention The aluminum alloy brazing material according to the present invention has extremely excellent workability by combining each element within a predetermined range, and can be easily processed into various shapes such as wire rods, plates, or plating sheets. can. Therefore, it is possible to select and employ the optimum form of the brazing material depending on the shape of the joining member, the location of the joining part, etc., and it is possible to expand the range of its use and simplify the brazing work. Furthermore, since it can be made to have excellent corrosion resistance, it is possible to eliminate the inconvenience of corrosion from the brazed portion after brazing, and it is possible to provide a brazed product with a long life.
さらには、低融点を確保したうえに固相線温度と液相線
温度との温度差を小さくできるから、ろう流動に先立つ
拡散や必要以上の流動性によるろう垂れの発生を防止で
きる。その結果、アルミニウム展伸材相互のろう付にお
いては勿論のこと、特に鋳物材をＪむ場合においても適
度に流動して接合部に十分なフィレットを形成すること
ができ、これら接合部材の確実かつ強固な接合を実現で
きる。Furthermore, since a low melting point is ensured and the temperature difference between the solidus temperature and the liquidus temperature can be reduced, it is possible to prevent diffusion prior to wax flow and the occurrence of solder dripping due to excessive fluidity. As a result, it is possible to flow appropriately and form a sufficient fillet at the joint, not only when brazing aluminum wrought materials, but especially when brazing cast materials. A strong bond can be achieved.
また、ろう材に所定範囲のＢｉが含有された場合には、
上記効果に加えてろう材の濡れ性を向上でき、益々良好
なろう付が可能となる効果がある。In addition, when the brazing filler metal contains Bi within a predetermined range,
In addition to the above-mentioned effects, the wettability of the brazing material can be improved, and even better brazing can be achieved.
実施例 次に、この発明の実施例を示す。Example Next, examples of this invention will be shown.
［以下余白］
第１表
第１表に示す各種組成のろう材用アルミニウム合金鋳塊
に、常法に従う板製進法に基き熱間圧延、中間焼鈍、冷
間圧延の各工程を実施したところ、Ｎｏ１〜７の合金に
ついては問題なく加工を行うことができ、最終的に厚さ
０．３調の板材を得ることができた。これに対し、Ｎ。[Margins below] Table 1 Aluminum alloy ingots for brazing filler metal with various compositions shown in Table 1 were subjected to the steps of hot rolling, intermediate annealing, and cold rolling based on the conventional plate manufacturing method. , No. 1 to No. 7 alloys could be processed without any problems, and in the end, plate materials with a thickness of 0.3 could be obtained. On the other hand, N.
８の従来品では圧延加工が困難であり、板材への加工は
実質的に不可能であった。このことから、本発明実施品
は従来品に較べて加工性が良く板材やプレージングシー
トへの加工も容易に行いうろことをまず確認した。It was difficult to roll the conventional product No. 8, and it was virtually impossible to process it into a plate material. From this, it was first confirmed that the product of the present invention has better workability than the conventional product and can be easily processed into plates and plating sheets.
次に、上記により得たＮｏ１〜７の各ろう材について、
その固相線温度と液相線温度とを調べ、Ｎｏ８のろう材
の固相線温度：５１０℃、液相線温度：５６０℃と比較
した。その結果を後掲の第２表に示す。Next, for each brazing filler metal No. 1 to 7 obtained above,
The solidus temperature and liquidus temperature were investigated and compared with the solidus temperature of No. 8 brazing metal: 510°C and the liquidus temperature: 560°C. The results are shown in Table 2 below.
次に、上記のろう材を用いてろう付を行い、そのろう付
性を調べた。なお、Ｎｏ８の従来組成の、うう材につい
ては別途常法によりビレットに鋳造後熱間押出によりワ
イヤ加工したものを用いた。ろう付はＡＡ７１２．０か
らなるアルミニウム鋳物ブロックに３００３アルミニウ
ム合金製バイブを組付けるとともに、各ろう材を接合部
に配置し、塩素系フラックスを用いた炉中ろう付により
、雰囲気温度５６５〜５７５℃に設定して行った。そし
て、ろう付後の接合部の状態を目視観察した。その結果
を同じく第２表に示す。Next, brazing was performed using the above-mentioned brazing material, and its brazing properties were examined. As for No. 8, which had a conventional composition, a material was used which was separately cast into a billet by a conventional method and then processed into a wire by hot extrusion. For brazing, a 3003 aluminum alloy vibrator is assembled to an aluminum cast block made of AA712.0, each brazing filler metal is placed at the joint, and brazing is performed in a furnace using chlorine-based flux at an ambient temperature of 565 to 575°C. I set it to . Then, the state of the joint after brazing was visually observed. The results are also shown in Table 2.
次に、Ｎｏ１〜３及びＮｏ８のろう材を用いた上記各ろ
う骨品につき、耐食性を調べるためにＪ ｌ５Ｚ２３７
１に準じる塩水噴霧試験を２００時間行い、ろう何部表
面の腐食状態を目視観察した。その結果は第２表に示す
とおりであった。Next, in order to examine the corrosion resistance of each of the above-mentioned soldered bones using brazing fillers Nos. 1 to 3 and No. 8, J15Z237
A salt water spray test according to 1 was conducted for 200 hours, and the state of corrosion on the surface of the wax part was visually observed. The results were as shown in Table 2.
［以下余白］ （注１） （注２） 第２表 ○・・・接合部に充分なフィレットが形成されていた。[Margin below] (Note 1) (Note 2) Table 2 ○...A sufficient fillet was formed at the joint.
△・・・ろう垂れによりフィレットの形成が不十分であ
った。Δ: Fillet formation was insufficient due to wax dripping.
Ｘ・・・ろう材の溶融が不十分でフィレットが形成され
ていなかった。X: Fillet was not formed due to insufficient melting of the filler metal.
○・・・表面に軽微な腐食が認められた。○: Slight corrosion was observed on the surface.
Ｘ・・・表面の凹凸が激しく、腐食が進行していた。X: The surface was severely uneven and corrosion was progressing.
上記第２表の結果かられかるように、本発明実施品（試
料Ｎｏ１〜３）は、融点も低く固相線温度と液相線温度
との温度差も少ない。従って、ろう付試験の結果からも
明らかなとおり、接合部に十分かつ良好なフィレットを
形成できろう付性に優れたものであることを確認しえた
。As can be seen from the results in Table 2 above, the products of the present invention (Samples Nos. 1 to 3) have a low melting point and a small temperature difference between the solidus temperature and the liquidus temperature. Therefore, as is clear from the results of the brazing test, it was confirmed that a sufficient and good fillet could be formed at the joint and that the joint had excellent brazing properties.
これに対し、本発明の組成範囲を逸脱する比較品（試料
Ｎｏ４〜７）では融点が高くなって実質的にろう付が不
可能であった。また、従来品（試料Ｎｏ８）は本発明品
に較べてフィレットの形成が不十分であった。さらに、
耐食性試験の結果から本発明実施品は従来品に較べて耐
食性にも優れていることを確認しえた。On the other hand, comparative products (Samples Nos. 4 to 7) that deviated from the composition range of the present invention had high melting points and were virtually impossible to braze. In addition, the conventional product (sample No. 8) had insufficient fillet formation compared to the product of the present invention. moreover,
From the results of the corrosion resistance test, it was confirmed that the products of the present invention were also superior in corrosion resistance compared to conventional products.
以上that's all
Claims (2)
１５．０ｗｔ％、Ｂｅ：０．５〜２．０ｗｔ％を含有し
、残部アルミニウム及び不可避不純物よりなるアルミニ
ウム合金ろう材。(1) Si: 6.0~15.0wt%, Zn: 6.0~
An aluminum alloy brazing material containing 15.0 wt%, Be: 0.5 to 2.0 wt%, and the balance consisting of aluminum and inevitable impurities.
１５．０ｗｔ％、Ｂｅ：０．５〜２．０ｗｔ％を含有し
、さらにＢｉ：０．００２〜０．３ｗｔ％を含有し、残
部アルミニウム及び不可避不純物よりなるアルミニウム
合金ろう材。(2) Si: 6.0~15.0wt%, Zn: 6.0~
An aluminum alloy brazing material containing 15.0 wt%, Be: 0.5 to 2.0 wt%, further containing Bi: 0.002 to 0.3 wt%, and the balance consisting of aluminum and inevitable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6991189A JPH02251394A (en) | 1989-03-22 | 1989-03-22 | Aluminum alloy brazing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6991189A JPH02251394A (en) | 1989-03-22 | 1989-03-22 | Aluminum alloy brazing material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02251394A true JPH02251394A (en) | 1990-10-09 |
| JPH0474118B2 JPH0474118B2 (en) | 1992-11-25 |
Family
ID=13416353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6991189A Granted JPH02251394A (en) | 1989-03-22 | 1989-03-22 | Aluminum alloy brazing material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02251394A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016520431A (en) * | 2013-03-14 | 2016-07-14 | シーメンス エナジー インコーポレイテッド | Structural brazing repair of superalloy components |
| US10076811B2 (en) | 2011-11-03 | 2018-09-18 | Siemens Energy, Inc. | Structural braze repair of superalloy component |
-
1989
- 1989-03-22 JP JP6991189A patent/JPH02251394A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10076811B2 (en) | 2011-11-03 | 2018-09-18 | Siemens Energy, Inc. | Structural braze repair of superalloy component |
| JP2016520431A (en) * | 2013-03-14 | 2016-07-14 | シーメンス エナジー インコーポレイテッド | Structural brazing repair of superalloy components |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0474118B2 (en) | 1992-11-25 |
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