JPH03243294A - Brazing method for high-strength al alloy, high-strength al alloy for brazing structure and high-strength al alloy brazing sheet - Google Patents
Brazing method for high-strength al alloy, high-strength al alloy for brazing structure and high-strength al alloy brazing sheetInfo
- Publication number
- JPH03243294A JPH03243294A JP3736590A JP3736590A JPH03243294A JP H03243294 A JPH03243294 A JP H03243294A JP 3736590 A JP3736590 A JP 3736590A JP 3736590 A JP3736590 A JP 3736590A JP H03243294 A JPH03243294 A JP H03243294A
- Authority
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- Japan
- Prior art keywords
- alloy
- brazing
- strength
- weight
- content
- 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.)
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Links
- 238000005219 brazing Methods 0.000 title claims abstract description 120
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims description 20
- 239000000463 material Substances 0.000 claims abstract description 64
- 239000011247 coating layer Substances 0.000 claims abstract description 39
- 239000000956 alloy Substances 0.000 claims description 78
- 229910045601 alloy Inorganic materials 0.000 claims description 64
- 238000007747 plating Methods 0.000 claims description 30
- 239000011162 core material Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 abstract description 12
- 230000008018 melting Effects 0.000 abstract description 12
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 229910000679 solder Inorganic materials 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 8
- 230000035515 penetration Effects 0.000 description 7
- 238000005253 cladding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000004907 flux Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005098 hot rolling Methods 0.000 description 5
- 229910001020 Au alloy Inorganic materials 0.000 description 4
- 238000000137 annealing Methods 0.000 description 3
- 239000003353 gold alloy Substances 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- 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
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Landscapes
- Ceramic Products (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、高強度Ａｉ！、合金をろう付する際に、ろ
う材部に適当なフィレットが形成され、良好なろう付接
合性が得られるろう付方法、および、このろう付方法に
使用される構造用Ａｌ合金材、プレージングシートに関
するものである。[Detailed Description of the Invention] [Industrial Application Field] This invention provides high-strength Ai! , a brazing method in which an appropriate fillet is formed in the brazing metal part and good brazing bondability is obtained when brazing the alloy, and a structural Al alloy material and plate used in this brazing method. This is related to the ging sheet.
［従来の技術］
純ＡｌやＡｌ合金からなる部材を接合する際に、この部
材が複雑な形状であったり、比較的薄肉であったり、さ
らに接合箇所が多かったりする場合は、ろう付による接
合方法が広く行われている。[Prior Art] When joining parts made of pure Al or Al alloy, if the parts have a complicated shape, are relatively thin, or have many joining points, joining by brazing is recommended. The method is widely used.
その−例を具体的に説明すると、ろう材には、Ｊ Ｉ
Ｓ４１０４やＪＩＳ４３４３に代表されるろう付性が良
好なＡｌ合金を使用し、このろう材を、プレージングシ
ートや置きろうとしてろう付部に供給する。To give a concrete example, the brazing filler metal is JI
An Al alloy with good brazing properties, such as S4104 and JIS4343, is used, and this brazing material is supplied to the plating sheet or to the brazing part to be placed.
部材同士は製品形状に応じて組み立て、プレージングシ
ートや置きろうなどとともに組立体とする。この組立体
を、フラックスを塗布した後に、大気あるいは不活性ガ
ス雰囲気炉内に配置し、あるいは、フラックスを塗布す
ることなく、真空炉内に配置する。炉内では、ろう材の
溶融温度以上の温度（例えば、Ａｌ−Ｓｉ合金系ろう材
で、約６００℃）に保持して、ろう材を溶融させてろう
付を行っている。The parts are assembled according to the shape of the product, and together with the plating sheet and the placeholder, they form an assembly. The assembly is placed in an air or inert gas atmosphere furnace after application of flux, or placed in a vacuum furnace without application of flux. In the furnace, the temperature is maintained at a temperature higher than the melting temperature of the brazing material (for example, approximately 600° C. for an Al-Si alloy brazing material) to melt the brazing material and perform brazing.
ところで、Ａｌは軽量という利点を生かして各種用途に
利用されており、ろう付により接合されたろう付製品も
ハニカム構造（例えば自動二輪車のスイングアーム）や
熱交換器などに広く応用されており、強度は若干低くて
も、ろう付性に優れたＡｌ２合金が多く用いられている
。By the way, Al is used for various purposes taking advantage of its light weight, and brazed products joined by brazing are also widely applied to honeycomb structures (for example, the swing arms of motorcycles) and heat exchangers, and are used for strength and strength. Al2 alloys are often used because they have excellent brazing properties, even if they are slightly low.
しかし、最近では、Ａｌ合金の用途拡大のために、高強
度で、しかもろう付性に優れた構造用、Ｉｆ合金の使用
が要望されている。However, recently, in order to expand the use of Al alloys, there has been a demand for the use of structural If alloys that have high strength and excellent brazing properties.
また、ろう付製品全体の強度は、構造用Ａｌ合金の強度
のみならず、製品構造の一部となるプレージングシート
の強度にも影響される。しかし、従来、プレージングシ
ートの芯材として一般に使用されているＡｌ２−Ｍｎ系
合金は強度が十分ではなく、ろう付製品の破断強度を低
下させる一因となっている。このため、プレージングシ
ートの芯材にも、ろう付性に優れた高強度のＡｌ合金を
使用することが要望されている。Furthermore, the strength of the entire brazed product is affected not only by the strength of the structural Al alloy but also by the strength of the plating sheet that forms part of the product structure. However, the Al2-Mn alloy that has been conventionally used as the core material of plating sheets does not have sufficient strength, which is one of the causes of lowering the breaking strength of brazed products. For this reason, it is desired to use a high-strength Al alloy with excellent brazing properties also for the core material of the plating sheet.
［発明が解決しようとする課題］
一般に高強度Ａｌ合金としては、ＪＩＳ２００Ｏ系、５
０００糸、６０００系、７０００系の合金が知られてい
る。しかし、２０００系、６０００系の合金は、Ｃｕ、
Ｓｉを比較的多量に含有し、溶融温度が低いために、ろ
う付用に溶融してしまうという問題点がある。また、ろ
う付時の加熱により、合金は焼鈍された状態となり、ろ
う付部の１合却速度も大きくないため、適当な焼入れ効
果が得られず、強度は不十分である。また、その後の熱
処理によっても十分な強度は得られない。[Problem to be solved by the invention] Generally, high-strength Al alloys include JIS 200O series, 5
000 yarn, 6000 series, and 7000 series alloys are known. However, 2000 series and 6000 series alloys have Cu,
Since it contains a relatively large amount of Si and has a low melting temperature, it has the problem of being melted for brazing. Furthermore, the alloy is in an annealed state due to the heating during brazing, and the rate of melting at the brazed portion is not high, so an appropriate hardening effect cannot be obtained and the strength is insufficient. Furthermore, sufficient strength cannot be obtained by subsequent heat treatment.
したがって、ＪＩＳ２０００系、６０００系のＡｌ合金
は、ろう付用の高強度材料としては不適当である。Therefore, JIS 2000 series and 6000 series Al alloys are unsuitable as high-strength materials for brazing.
以上の点から、ろう付用の高強度Ａｌ合金としては、Ｍ
ｇを比較的多く含有する焼入れ感受性の弱い７０００系
合金や非熱処理型の５０００系合金が候補として考えら
れる。From the above points, as a high strength Al alloy for brazing, M
Possible candidates include a 7000 series alloy that contains a relatively large amount of g and has low quenching sensitivity, and a non-heat-treated 5000 series alloy.
しかし、５０００系、７０００系のＡ１合金を用いた場
合には、ろう付部に適当なフィレットが形成されず、ろ
う付接合性（以下、ろう付性という）に劣っているとい
う問題点がある。However, when 5000 series and 7000 series A1 alloys are used, there is a problem in that an appropriate fillet is not formed in the brazed part, resulting in poor brazing performance (hereinafter referred to as brazing performance). .
本発明者らは、上記問題点を解決すべく、Ｍｇ含含有Ａ
ｌ金合金おけるろう付性不良の原因を調査研究し、以下
の２点が要因になっていることを明らかにした。In order to solve the above problems, the present inventors have developed Mg-containing A
We investigated and researched the causes of poor brazing properties in l-gold alloys and found that the following two factors were the causes.
ｆｉｌ第１点として、Ｍｇ含含有Ａ１金合金、焼鈍によ
って微細、等方再結晶組織が形成されやすく、溶融ろう
の粒界侵食を受けやすい。しかも侵入した溶融ろう（例
えば八β−３ｉろう）は、Ａｌ合金中で拡散するＭｇを
取り入れることによって、融点が低下するため、安定し
て合金の粒界を侵食し続ける。したがって、フィレット
形成に寄与すべき必要なろうが、合金内に吸収され、フ
ィレット形成が不十分となって、ろう付性を悪化させる
。The first point is that Mg-containing A1 gold alloys tend to form a fine, isotropic recrystallized structure by annealing, and are susceptible to grain boundary erosion by molten solder. In addition, the molten solder that has entered (for example, 8β-3i solder) incorporates Mg that diffuses into the Al alloy, thereby lowering its melting point, so that it continues to stably erode the grain boundaries of the alloy. Therefore, the necessary wax that should contribute to fillet formation is absorbed into the alloy, resulting in insufficient fillet formation and deteriorating brazability.
（２）第２点としては、Ｍｇ含有八へ合金は、真空中、
不活性ガス中、大気中などの雰囲気にかかわらず、焼鈍
や、ろう付時の加熱によって、表面に酸化皮膜が厚く成
長し、Ｍｇ含有量が多いほど酸化皮膜の成長速度が早い
。この皮膜が溶融ろうを過剰に拡げる促進作用をもち、
ろう部のフィレット形成を阻害してろう付性を悪化させ
る。(2) The second point is that the Mg-containing Hachihe alloy is
Regardless of the atmosphere such as inert gas or air, an oxide film grows thickly on the surface due to annealing or heating during brazing, and the higher the Mg content, the faster the oxide film grows. This film has the effect of promoting excessive expansion of molten solder,
It inhibits fillet formation in the solder part and deteriorates brazing properties.
上記 ｆｉ＋、 （２１で述べたろうの侵入およびろう
の拡がり現象は、Ａｌ２合金のＭｇ含有量が多いほど顕
著となり、ろう付性を一層悪化させる。The penetration of the solder and the spreading of the solder described in (21) become more pronounced as the Mg content of the Al2 alloy increases, further deteriorating the brazing properties.
したがって、ろう付に用いるＡＪ２合金としては、Ｍｇ
含有量が少ないほどろう付性が良好となるが、高強度と
いう特性を満足することはできない。Therefore, as the AJ2 alloy used for brazing, Mg
The lower the content, the better the brazing properties, but the property of high strength cannot be satisfied.
本願発明は、上記した知見に基づき、Ｍｇ含有Ａｌ合金
を用いて、高強度の特性を得るとともに、良好なろう付
性を確保することを目的とするものである。The present invention is based on the above-mentioned knowledge, and aims to obtain high strength characteristics and ensure good brazing properties using an Mg-containing Al alloy.
［課題を解決するための手段］
上記目的を達成するため、本願発明のうち高強度Ａｌ合
金のろう付方法は、Ｃｕ含有量が２．０重量％未満、Ｓ
ｉ含有量が１．２重量％未満で、Ｍｇを０．３〜５．６
重量％含有する高強度Ａｌ合金をろう付するに先立ち、
高強度Ａ、９合金の少なくともろう付表面に、純Ａｌま
たはＭｇ含有量が０．５重量％未満のＡｌ合金からなる
被覆層を、１００μｍ以上の厚さで設けておき、ろう材
を溶解させて前記高強度Ａｌ１合金ろう付することを特
徴とするものである。[Means for Solving the Problems] In order to achieve the above object, the method of brazing high strength Al alloy of the present invention includes
i content is less than 1.2% by weight, Mg is 0.3-5.6
Prior to brazing the high strength Al alloy containing % by weight,
A coating layer made of pure Al or an Al alloy with an Mg content of less than 0.5% by weight is provided on at least the brazing surface of the high-strength A and 9 alloys with a thickness of 100 μm or more, and the brazing material is melted. This is characterized in that the high-strength Al1 alloy is brazed.
次に、第２の発明のろう付構造用高強度Ａｆｆ合金材は
、Ｃｕ含有量が２．０重量％未満、Ｓｉ含有量が１．２
重量％未満で、Ｍｇを０．３〜５゜６重量％含有するろ
う付構造用高強度Ａｌ合金の少なくともろう付表面に、
純へ４またはＭｇ含有量が０．５重量％未満のＡｌ２合
金からなる被覆層が、ｌＱＯＬＬｍ以上の厚さで設けら
れていることを特徴とするものである。Next, the high-strength Aff alloy material for brazed structures of the second invention has a Cu content of less than 2.0% by weight and a Si content of 1.2% by weight.
At least on the brazing surface of a high-strength Al alloy for brazing structures containing 0.3 to 5.6% by weight of Mg,
The coating layer is characterized in that a coating layer made of Al2 alloy having a Mg content of less than 0.5% by weight is provided with a thickness of 1QOLLm or more.
第３の発明である高強度Ａｌ合金プレージングシートは
、Ｃｕ含有量が２．０重量％未満、Ｓｉ含有量が１．２
重量％未満で、Ｍｇを０．３〜５．６重量％含有する高
強度Ａｌ合金を芯材とし、この芯材の少なくともろう付
表面に、純ＡｌまたはＭｇ含有量が０．５重量％未満の
へ４合金からなる被覆層が、１１００ＬＬ以上の厚さで
設けられており、この被覆層の表面に、ろう材が被覆さ
れていることを特徴とするものである。The third invention, the high-strength Al alloy plating sheet, has a Cu content of less than 2.0% by weight and a Si content of 1.2% by weight.
A high-strength Al alloy containing 0.3 to 5.6% by weight of Mg is used as a core material, and at least the brazing surface of this core material has a pure Al or Mg content of less than 0.5% by weight. A coating layer made of Nohe 4 alloy is provided with a thickness of 1100 LL or more, and the surface of this coating layer is coated with a brazing material.
以下に、本発明の構成を、より具体的に説明する。The configuration of the present invention will be explained in more detail below.
先ず、本発明に用いる高強度Ａｌ合金の成分限定理由を
述べる。First, the reason for limiting the components of the high-strength Al alloy used in the present invention will be described.
高強度Ａｌ合金中のＣｕ含有量を２．０重量％未満、Ｓ
ｉ含有量を１．２重量％未満としたのは、これら含有量
を超えた場合に、Ａｌ合金の溶融開始温度が低下して、
ろう何時にＡｌ１合金局部溶解が起こり、材料強度が著
しく低下し、さらに製品形状を保てないおそれがあるた
めである。Cu content in high strength Al alloy is less than 2.0% by weight, S
The reason why the i content is less than 1.2% by weight is that if the i content exceeds this content, the melting start temperature of the Al alloy will decrease.
This is because local melting of the Al1 alloy occurs during soldering, resulting in a significant decrease in material strength and the possibility that the product shape cannot be maintained.
また、Ｍｇ含有量を０．３〜５．６重量％の範囲内とし
たのは、０．３重量％未満では、Ａｌ１合金強度が不十
分であり、一方、５．６重量％を超えると、ろうの侵入
やＡｌ１合金溶融現象が生ずるためである。また、同様
の理由によって、さらに、Ｍｇ含有量を０．６〜３．０
重量％に限定するのが望ましい。In addition, the Mg content was set within the range of 0.3 to 5.6% by weight because if it is less than 0.3% by weight, the Al1 alloy strength is insufficient, whereas if it exceeds 5.6% by weight, the strength of the Al1 alloy is insufficient. This is because wax penetration and Al1 alloy melting phenomena occur. In addition, for the same reason, the Mg content was further increased from 0.6 to 3.0.
Preferably, it is limited to % by weight.
なお、他の成分については、言及しないので、上記以外
の成分を適宜量含有することは可能である。In addition, since other components are not mentioned, it is possible to contain appropriate amounts of components other than those mentioned above.
この高強度Ａｌ１合金、第２の発明のように、構造用の
へ４合金材として用いることができ、さらに、第３の発
明のように、ブレ、−ジングシートの芯材として用いる
ことができる。This high-strength Al1 alloy can be used as a structural He4 alloy material, as in the second invention, and furthermore, as in the third invention, it can be used as a core material for bending sheets. .
次に、上記した高強度Ａｌ合金の少なくともろう付表面
には、後述する純Ａ℃またはＡｌ２合金からなる被覆層
を設ける。すなわち、ろう材が溶融してろうが拡がると
想定される表面域に、最小限、被覆層が設けられていれ
ばよい。また、本願発明としては、被覆層をろう付表面
以外の合金表面に設けてもよく、さらに片面のみならず
、両面に設けることも考えられる。Next, at least the brazing surface of the above-mentioned high-strength Al alloy is provided with a coating layer made of pure A.degree. C. or Al2 alloy, which will be described later. That is, it is sufficient that at least the coating layer is provided on the surface area where the brazing material is expected to melt and spread. Further, in the present invention, the coating layer may be provided on the alloy surface other than the brazing surface, and it is also conceivable to provide the coating layer not only on one side but also on both sides.
この被覆層に用いられる材料は、純ＡｌまたはＭｇ含有
量が０．５重量％未満のＡ、９合金に限定される。なお
、純ＡＪ２には、不可避の不純物が含まれるものであっ
てもよい。また、Ａｌ１合金ついては、Ｍｇ以外の成分
については特に限定されない。被覆層の材料を上記に限
定したのは、この組成によれば、ろう付加熱時に、高強
度八β合金表面における酸化皮膜の成長が遅く、かつ、
高強度Ａｌ合金へのろうの侵入が生じ難いためである。The material used for this coating layer is limited to pure Al or an A,9 alloy with a Mg content of less than 0.5% by weight. Note that pure AJ2 may contain unavoidable impurities. Further, regarding the Al1 alloy, there are no particular limitations on the components other than Mg. The reason why the material of the coating layer is limited to the above is because, according to this composition, the growth of the oxide film on the high-strength 8β alloy surface is slow during brazing heating, and
This is because it is difficult for solder to penetrate into the high-strength Al alloy.
また、上記被覆層の厚さを１００１．１ｍ以上としたの
は、一般のろう付条件では、Ｍｇの拡散が１５０ｕｍで
あり、Ｍｇによるろう付性の悪影響を有効に排除するた
めに、最小限、上記厚さが必要となるためである。なお
、被覆層の厚さの上限は、特に存在しないが、被覆層が
設けれらた材料の強度が、比較的強度の低い被覆層の存
在によって全体として低下しないように、過度の厚さと
しないのが望ましい。例えば、純Ａ℃の被覆層では、厚
みを３００ＬＬｍ以下とするのが望ましい。In addition, the reason why the thickness of the above-mentioned coating layer was set to be 1001.1 m or more is that under general brazing conditions, Mg diffusion is 150 um, and in order to effectively eliminate the negative influence of Mg on brazability, it is necessary to minimize the This is because the above thickness is required. There is no particular upper limit to the thickness of the coating layer, but it should not be excessively thick so that the overall strength of the material provided with the coating layer does not decrease due to the presence of the coating layer, which has relatively low strength. is desirable. For example, for a pure A°C coating layer, it is desirable that the thickness be 300 LLm or less.
なお、被覆層の形成方法は特に限定されるものではなく
、クラッド法や金属溶射法などを採用することができる
。一般には、クラッド法により能率よく被覆層を設ける
ことができる。Note that the method for forming the coating layer is not particularly limited, and a cladding method, a metal spraying method, or the like can be adopted. Generally, the coating layer can be efficiently provided by the cladding method.
上記のように被覆層を設けた高強度式β合金を、プレー
ジングシートの芯材として用いる場合には、被覆層の表
面に、さらに、ろう材を被覆する。ろう材の被覆につい
ても上記被覆層と同様に、被覆方法は限定されないが、
クラッド法が望ましい。ろう材の材料としては、高強度
Ａｌ合金へのろうの侵入が抑制されるように、Ｍｇ含有
量が０．３重量％以下であるのが望ましい。When a high-strength β alloy provided with a coating layer as described above is used as a core material of a plating sheet, the surface of the coating layer is further coated with a brazing material. As with the above-mentioned coating layer, the coating method for coating the brazing material is not limited, but
Cladding method is preferred. As for the material of the brazing filler metal, it is desirable that the Mg content is 0.3% by weight or less so that penetration of the brazing filler metal into the high-strength Al alloy is suppressed.
一方、構造用Ａ１２合金材として用いる場合には、ろう
材は、プレージングシートや置きろうなどの方法によっ
て供給されるが、その方法は特に限定されるものではな
い。On the other hand, when used as a structural A12 alloy material, the brazing filler metal is supplied by a method such as plating sheet or placing wax, but the method is not particularly limited.
上記プレージングシートや構造用Ａｌ合金材を用い、常
法によって各種雰囲気下でろう材を溶融させてろう付を
行う。Brazing is performed using the above-mentioned plating sheet and structural Al alloy material by melting a brazing material in various atmospheres in a conventional manner.
なお、プレージングシートのろう材のＭｇ含有量を、前
記したように０．３重量％以下として、真空ろう付を行
う場合には、５ Ｘ １０−’ Ｔｏｒｒ以下の高真空
下で行うのが望ましい。これは、従来、Ｍｇ含有のろう
材により、プレージングシートの耐食性が増して芯材の
酸化皮膜の形成を抑制していたので、低Ｍｇ含有のろう
材では芯材の酸化皮膜の形成を抑止するために、より高
い真空度が望ましいためである。In addition, when vacuum brazing is performed with the Mg content of the brazing material of the plating sheet being 0.3% by weight or less as described above, it is best to perform it under a high vacuum of 5 X 10-' Torr or less. desirable. Conventionally, Mg-containing brazing materials increased the corrosion resistance of the plating sheet and suppressed the formation of an oxide film on the core material, but brazing materials with a low Mg content suppressed the formation of an oxide film on the core material. This is because a higher degree of vacuum is desirable.
［作 用］
すなわち、本願発明によれば、ろう付に際し、高強度Ａ
ｌ合金の少なくともろう付表面が被覆層で覆われた状態
にあり、溶融したろうが高強度Ａｌ合金内に侵入するの
を防止し、さらに、高強度Ａｌ合金中のＭｇ成分が拡散
して溶融ろうと化学反応するのを防止する。また、Ｍｇ
成分による酸化皮膜の成長を抑制し、ろうの拡がりを必
要以上に促進しない。[Function] That is, according to the present invention, high strength A is achieved during brazing.
At least the brazed surface of the l-alloy is covered with a coating layer, which prevents molten solder from penetrating into the high-strength Al alloy, and further prevents the Mg component in the high-strength Al alloy from diffusing and melting. Prevents chemical reactions with wax. Also, Mg
Suppresses the growth of oxide film caused by the ingredients and does not promote the spread of wax more than necessary.
したがって、溶融したろう材は、高強度Ａｌ合金内に侵
入することなく、ろう何面に適度に拡がり、ろう何部に
適当なフィレットが形成され、良好なろう付接合がなさ
れる。Therefore, the molten brazing filler metal does not penetrate into the high-strength Al alloy, but spreads appropriately over the brazing surface, forming an appropriate fillet in the brazing section, and achieving a good brazed joint.
以下に、本発明の実施例を、２つのＡｌ２合金板材をろ
う付接合する場合について説明する。An example of the present invention will be described below regarding a case where two Al2 alloy plates are joined by brazing.
［実施例１］
実施例１では、Ａｆ１合金板材の一方にＭｇ含有の高強
度Ａｌ合金を用い、他方の板材には、Ａｌ−３ｉ系のＡ
ｌ合金を用いた。[Example 1] In Example 1, a high-strength Al alloy containing Mg was used for one of the Af1 alloy plate materials, and an Al-3i-based Al alloy was used for the other plate material.
l alloy was used.
高強度Ａｌ合金として、第１表に示す成分組成を有する
合金（Ｎｏ、１〜４）を通常の溶解、鋳造法によって作
製し、均質化熱処理、面削の後、第１図（Ａ）に示すよ
うに、各合金ｌに、Ａｌと不可避不純物からなる純Ａ℃
材を熱間圧延によってクラッドして被覆層２を設け、冷
間圧延によって２ｍｍ厚の板材とし、それぞれ焼鈍を行
って本発明の構造用高強度Ａ１２合金材を得た。各板材
における純Ａｌ、すなわち被覆層２の厚みは、第１表に
示す通りである。As high-strength Al alloys, alloys (Nos. 1 to 4) having the compositions shown in Table 1 were produced by ordinary melting and casting methods, and after homogenization heat treatment and surface milling, they were shown in Figure 1 (A). As shown, each alloy l has a pure A℃ consisting of Al and inevitable impurities.
The material was clad by hot rolling to provide a coating layer 2, and then cold rolled to form a 2 mm thick plate material, each of which was annealed to obtain a structural high strength A12 alloy material of the present invention. The thickness of pure Al in each plate material, that is, the thickness of the coating layer 2, is as shown in Table 1.
なお、比較のために、合金（Ｎｏ、３）を用い、前記面
削後に、熱間圧延、冷間圧延して２ｍｍ厚とし、さらに
焼鈍して、被覆層を設けない比較例の構造用板材を得た
。For comparison, alloy (No. 3) was used, and after the above-mentioned facing, hot rolling and cold rolling were performed to a thickness of 2 mm, and further annealing was performed to prepare a structural plate material of a comparative example without a coating layer. I got it.
前記構造用板材と接合させる他方の板材には、Ａｌ１−
１．０重量％Ｍｎ−１，０重量％Ｓｉ −（１，５重量
％Ｃｕの／’Ｉ２−３ｉ系合金を用い、この合金を、第
１図（Ｂ）に示すように芯材３として、その両面に、Ｊ
ＩＳ４１０４合金または４３４３合金からなるろう材４
を１０％厚ずつクラッドして０．５ｍｍ厚のＡｌ１−５
ｉ系板材（プレージングシ−ト）とし、さらに、焼鈍し
た。The other plate to be joined to the structural plate includes Al1-
Using a /'I2-3i alloy of 1.0 wt% Mn-1.0 wt% Si-(1.5 wt% Cu), this alloy was used as the core material 3 as shown in Fig. 1(B). , on both sides, J
Brazing material 4 made of IS4104 alloy or 4343 alloy
0.5mm thick Al1-5 by cladding with 10% thickness
It was made into an i-type plate material (plating sheet) and further annealed.
また、ろう材をクラッドすることなく、上記芯材３のみ
で構成し、上記と同様に焼鈍した０、 ５ｍｍ厚のＡ℃
−３ｉ系板材を別に用意した。In addition, a 0.5 mm thick A°C was constructed of only the core material 3 without cladding the brazing material and was annealed in the same manner as above.
-3i type board material was prepared separately.
なお、前記した構造用板材は、５０Ｘ３０ｍｍの大きさ
に切断し、Ａｌ−３１系板材は、４０×２０ｍｍの大き
さに切断し、その後、それぞれの板材について、溶剤脱
脂、乾燥を行った。The above-mentioned structural board material was cut into a size of 50 x 30 mm, and the Al-31 board material was cut into a size of 40 x 20 mm, and then each board material was degreased with a solvent and dried.
そして、Ａｌ２−３ｉ系板材を、第２図（Ａ）〜（Ｃ）
に示すように、長辺側を載置面とするようにして、高強
度Ａ１２合金板材の上面に垂直に立てた。なお、芯材の
みの板材を用いた場合には、第２図（Ｃ）に示すように
、接合部分にＪＩＳ４１０４合金または４３４３合金か
らなる０、８ｍｍ径のろう線材５を置いてろう材を供給
するものとした。Then, the Al2-3i type plate material is
As shown in Figure 2, it was stood perpendicularly on the upper surface of a high-strength A12 alloy plate with the long side serving as the mounting surface. In addition, when using a plate material with only a core material, as shown in Fig. 2 (C), a brazing wire 5 with a diameter of 0.8 mm made of JIS 4104 alloy or 4343 alloy is placed at the joint part and the brazing material is supplied. It was decided that
そして、ろう付性としては、３つの方法を採用し、その
１つの真空ろう付では、１０−５Ｔｏｒｒの真空下で行
い、プレージングシートまたは置きろうのろう材として
はＪ Ｉ Ｓ４１０４合金を使用した。第２の方法では
、接合部にふっ化物系フラックスを塗布してＮ２ガス雰
囲気中でろう付するものとし、ろう材には、ＪＩＳ４３
４３合金を用いた。さらに、第３の方法では、塩化物系
フラックスを用い、大気中でろう付するものとし、ろう
材にはＪＩＳ４３４３合金を用いた。なお、いずれのろ
う付方法においても、ろう付温度は６００℃で、ろう何
時間は５分間とした。Three methods were adopted for brazing properties, one of which was vacuum brazing, which was performed under a vacuum of 10-5 Torr, and J I S4104 alloy was used as the brazing material for the plating sheet or brazing material. . In the second method, a fluoride flux is applied to the joint and brazed in an N2 gas atmosphere, and the brazing material is JIS43
43 alloy was used. Furthermore, in the third method, brazing was performed in the atmosphere using a chloride flux, and a JIS 4343 alloy was used as the brazing material. In both brazing methods, the brazing temperature was 600° C. and the brazing time was 5 minutes.
ろう付後には、第３図に示すように接合部分の断面観察
を行い、ろう６の拡がり幅Ｗと高強度、Ｉｆ合合金への
ろう６の侵入深さＨな測定した。さらに、接合された構
造体の接合強度を引っ張り試験によって測定し、また、
ろう付後の高強度Ａｌ合金１のみの引っ張り試験を行っ
た。これらの結果は第１表に示した。After brazing, the cross section of the joint was observed as shown in FIG. 3, and the spread width W of the solder 6, the high strength, and the penetration depth H of the solder 6 into the alloy alloy were measured. Furthermore, the joint strength of the joined structures was measured by a tensile test, and
A tensile test was conducted only on high-strength Al alloy 1 after brazing. These results are shown in Table 1.
その結果は、本発明の実施例では、ろうの拡がりは適当
で、ろうの侵入も浅く、適当なフィレットが形成された
。したがって、ろう付状態は良好で、接合部の破断強度
は高く、破断は接合部から生ずることはなく、他方の強
度の小さい板材で生じた。また、高強度Ａｌ合金材の材
料強度も十分に高い。The results showed that in the examples of the present invention, the spread of the wax was appropriate, the penetration of the wax was shallow, and an appropriate fillet was formed. Therefore, the brazed condition was good, the fracture strength of the joint was high, and the fracture did not occur from the joint, but occurred in the other plate material, which had lower strength. Moreover, the material strength of the high-strength Al alloy material is also sufficiently high.
これに対し、被覆層を有しない比較例では、ろう拡がり
が大きく、ろうの侵入も深くて、フィレット形成が不十
分となった。そのため接合状態が極めて悪くて、構造体
の破断強度が低く、破断は、接合部で生じた。また、高
強度、１１合金材の強度も極めて低い結果となった。On the other hand, in the comparative example which did not have a coating layer, the spread of the solder was large and the penetration of the solder was deep, resulting in insufficient fillet formation. Therefore, the bonding condition was extremely poor, the breaking strength of the structure was low, and the breakage occurred at the bonded portion. Furthermore, the strength of the high-strength 11 alloy material was also extremely low.
〔実施例２］
実施例２では、一方の板材は高強度Ａｌ合金を芯材とす
るプレージングシートとし、他方の板材は、高強度Ａｌ
合金またはＪＩＳ３００３１２合金を用いた構造用板材
とした。[Example 2] In Example 2, one plate material was a plating sheet with a core material of high-strength Al alloy, and the other plate material was a plating sheet made of high-strength Al alloy.
The structural plate material was made of alloy or JIS300312 alloy.
第２表に示すように、高強度Ａｌ合金（Ｎｏ。As shown in Table 2, high strength Al alloy (No.
５〜７）、プレージングシート用ろう材（Ｎｏ。5-7), Brazing material for plating sheet (No.
ａ＝ｃ）、被ｌ′！（クラッド）用純Ａｆｆ材、ＪＩＳ
３００３合金をそれぞれ用意した。a=c), covered l′! Pure Aff material for (cladding), JIS
3003 alloy was prepared respectively.
各材料を、均質化熱処理した後、薄削した。Each material was subjected to homogenization heat treatment and then thinly shaved.
その後、構造用爪β合金板材に高強度Ａｌ合金１０を用
いた場合には、熱間圧延によって、第４図（Ａ）に示す
ように、高強度Ａｌ合金の片面に１０％の厚さで線式β
からなる被覆層１１をクラッドした。また、構造用ＡＪ
２合金板材にＪＩＳ３００３Ａｌ合金を用いた場合（図
示しない）には、薄削後、被覆層を設けることなく、熱
間圧延した。それぞれの構造用Ａ１２合金板材は、上記
熱間圧延後に、さらに、冷間圧延して１．５ｍｍ厚の板
材とした。After that, when high-strength Al alloy 10 is used for the structural pawl β-alloy plate material, one side of the high-strength Al alloy is coated with a thickness of 10% by hot rolling, as shown in Figure 4 (A). Linear β
A coating layer 11 consisting of the following was clad. In addition, structural AJ
When a JIS 3003 Al alloy was used for the 2 alloy plate material (not shown), it was thinned and then hot rolled without providing a coating layer. After the above-mentioned hot rolling, each of the structural A12 alloy plates was further cold rolled into a plate having a thickness of 1.5 mm.
また、プレージングシートについては、前記薄削後、熱
間圧延によって、第４図（Ｂ）に示すように、高強度Ａ
ｌ合金１０の両面に、純Ａｌからなる被覆層１１、ろう
材１２をそれぞれ１０％の厚さでクラッドし、さらに、
冷間圧延によって、１．５ｍｍ厚の板材とした。In addition, as for the plating sheet, after the thinning, hot rolling produces a high-strength A
Both sides of the l-alloy 10 are clad with a coating layer 11 made of pure Al and a brazing material 12 with a thickness of 10% each, and further,
A plate material with a thickness of 1.5 mm was obtained by cold rolling.
なお、比較のため、プレージングシートおよび構造用板
材について、純Ａｌ被覆層を設けない高強度Ａｌ合金板
材をそれぞれ用意した。For comparison, high-strength Al alloy plates without a pure Al coating layer were prepared as plating sheets and structural plates.
プレージングシートは、４０Ｘ２０ｍｍ、構造用板材は
５０Ｘ３０ｍｍの大きさに切断し、その後、溶剤脱脂し
、乾燥を行った。The plating sheet was cut into a size of 40 x 20 mm, and the structural plate material was cut into a size of 50 x 30 mm, and then degreased with a solvent and dried.
次いで、実施例１と同様に、構造用板材上に、プレージ
ングシートを垂直に立てて、ろう付を行った。Next, in the same manner as in Example 1, the plating sheet was vertically erected on the structural board material, and brazing was performed.
ろう付条件は、実施例１と同様に真空ろう付、Ｎ２ガス
雰囲気中でのフラックスろう付、大気中でのフラックス
ろう付により行い、ろう付温度、時間も同様に６００℃
、５分間とした。なお、真空ろう付において、プレージ
ングシートの芯材にＮｏ、５またはＮｏ、６の合金を使
用した場合は、真空度を２ Ｘ ｌ ０−５Ｔｏｒｒと
し、Ｎｏ、７の合金を使用した場合には、真空度をｌＸ
ｌ０−８Ｔｏｒｒとした。The brazing conditions were the same as in Example 1: vacuum brazing, flux brazing in an N2 gas atmosphere, and flux brazing in the air, and the brazing temperature and time were also 600°C.
, for 5 minutes. In addition, in vacuum brazing, when alloy No. 5 or No. 6 is used as the core material of the plating sheet, the degree of vacuum is 2 X l 0-5 Torr, and when alloy No. 7 is used, is the degree of vacuum lX
It was set to 10-8 Torr.
ろう何部に、ツイーン１〜の形成状況を観察し、さらに
、ろう何種合部およびその近傍の断面を観察し、プレー
ジングシートｚ材および構造用Ａｌ合金へのろうの侵入
深さを調べた。また、ろう材構造体の接合強度を引っ張
り試験によって測定した。これらの結果は第３表に示し
た。Observe the formation status of Tween 1~ in the solder joint, observe the cross section of the solder joint and its vicinity, and examine the penetration depth of the solder into the plating sheet Z material and the structural Al alloy. Ta. In addition, the bonding strength of the brazing material structure was measured by a tensile test. These results are shown in Table 3.
第３表から明らかなように、高強度Ａｌ合金をプレージ
ングシートまたは構造材に使用した場合に、純Ａｌをク
ラッドしたものは、良好なろう付状態が得られ、破断強
度に優れていた。As is clear from Table 3, when high-strength Al alloys were used for plating sheets or structural materials, those clad with pure Al provided a good brazed state and had excellent breaking strength.
しかし、高強度穴β合金に純Ａｌをクラッドしなかった
ものは、ろうの侵入が顕著で、フィレットの形成が不十
分となり、破断強度も低く、ろう付性に劣っていた。However, in high-strength hole β alloys that were not clad with pure Al, the intrusion of solder was significant, the fillet formation was insufficient, the breaking strength was low, and the brazing properties were poor.
以上説明したように、本願発明のうち、高強度Ａ℃金合
金ろう付方法によれば、Ｃｕ含有量が２．０重量％未満
、Ｓｉ含有量が１．２重量％未満で、Ｍｇを０．３〜５
．６重量％含有する高強度Ａｌ合金をろう付するに先立
ち、高強度Ａｌ２合金の少なくともろう付表面に、純Ａ
ｌまたはＭｇ含有量が０．５重量％未満のＡｌ２合金か
らなる被覆層を、１１００ｔＬ以上の厚さで設けておき
、ろう材を溶解させて前記高強度Ａｌ合金をろう付する
ので、ろう何部で、フィレットが適当に形成され、良好
なろう付状態が得られ、しかも、高強度Ａｌ２合金の使
用により、高強度のろう材構造体が得られるという効果
がある。As explained above, according to the high-strength A°C gold alloy brazing method of the present invention, the Cu content is less than 2.0% by weight, the Si content is less than 1.2% by weight, and the Mg content is 0%. .3-5
．． Prior to brazing the high-strength Al alloy containing 6% by weight, pure A is added to at least the brazing surface of the high-strength Al alloy
A coating layer made of an Al2 alloy with a L or Mg content of less than 0.5% by weight is provided with a thickness of 1100 tL or more, and the high-strength Al alloy is brazed by melting the brazing filler metal. In this case, the fillet is appropriately formed and a good brazed state is obtained, and the use of the high-strength Al2 alloy has the effect that a high-strength brazing material structure can be obtained.
また、本願発明のろう付構造用高強度Ａｌ合金材によれ
ば、Ｃｕ含有量が２．０重量％未満、Ｓ１含有量が１．
２重量％未満で、Ｍｇを０．３〜５．６重量％含有する
ろう付構造用高強度Ａｌ合金の少なくともろう付表面に
、純Ａ℃またはＭｇ含有量が０．５重量％未満の八４合
金が、１００μｍ以上の厚さで設けられているので、高
強度のＡｌ合金材を用いて前記方法を実施することがで
き、ろう付性に優れた高強度のろう材構造体が得られる
という効果がある。Further, according to the high-strength Al alloy material for brazed structures of the present invention, the Cu content is less than 2.0% by weight, and the S1 content is 1.0% by weight.
At least on the brazing surface of a high-strength Al alloy for brazing structures containing 0.3 to 5.6 wt% Mg, pure A°C or 8% Mg content less than 0.5 wt%. Since the four alloys are provided with a thickness of 100 μm or more, the above method can be carried out using a high-strength Al alloy material, and a high-strength brazing material structure with excellent brazing properties can be obtained. There is an effect.
また、本願発明のプレージングシートによれば、Ｃｕ含
有量が２．０重量％未満、Ｓｉ含有量が１．２重量％未
満で、Ｍｇを０．３〜５．６重量％含有する高強度ＡＩ
；！、合金を芯材とし、この芯材の少なくともろう付表
面に、純ＡｌまたはＭｇ含有量が０．５重量％未満の八
４合金からなる被覆層が、１１００ＬＬ以上の厚さで設
けられており、この被覆層の表面に、ろう材が被覆され
ているので、高強度の芯材を有するプレージングシート
を用いて、前記方法を実施することができ、ろう付性が
良好で強度の高いプレージングシートが提供されるとい
う効果がある。Moreover, according to the plating sheet of the present invention, the Cu content is less than 2.0% by weight, the Si content is less than 1.2% by weight, and the plating sheet contains 0.3 to 5.6% by weight of Mg. AI
;! , an alloy is used as a core material, and at least on the brazed surface of this core material, a coating layer made of pure Al or 84 alloy with a Mg content of less than 0.5% by weight is provided with a thickness of 1100LL or more. Since the surface of this coating layer is coated with a brazing material, the above method can be carried out using a plating sheet having a high-strength core material, and the brazing sheet has good brazing properties and high strength. This has the effect of providing a ging sheet.
第１図（Ａ）は、この発明の一実施例に用いられる構造
用Ａｌ合金材の断面図、第１図（Ｂ）は、同じくプレー
ジングシートの断面図、第２図（Ａ）は、同じく板材同
士を組み立てた状態を示す斜視図、第２図（Ｂ）は、同
じくプレージングシートを用いた場合の正面断面図、第
２図（Ｃ）は、同じく置きろうを用いた場合の正面断面
図、第３図は、同じくろう何部の断面図、第４図（Ａ）
は、他の実施例に用いられる構造用Ａ１２合金材の断面
図、第４図（Ｂ）は、同じくプレージングシートの断面
図である。
ｌ・・・高強度Ａｕ合金
３・・・２材
５・・・ろう線材
１０・・・高強度Ａｌ合金
１２・・・ろう材
２・・・被覆層
４・・・ろう材
６・・・ろう
１１・・・被覆層FIG. 1(A) is a sectional view of a structural Al alloy material used in an embodiment of the present invention, FIG. 1(B) is a sectional view of a plating sheet, and FIG. 2(A) is a sectional view of a structural Al alloy material used in an embodiment of the present invention. Similarly, FIG. 2 (B) is a perspective view showing the state in which the plates are assembled together, FIG. 2 (B) is a front cross-sectional view when a plating sheet is also used, and FIG. The sectional view, Fig. 3, is the same sectional view of some parts, Fig. 4 (A).
4(B) is a cross-sectional view of a structural A12 alloy material used in another example, and FIG. 4(B) is a cross-sectional view of a plating sheet. l... High strength Au alloy 3... 2 material 5... Brazing wire rod 10... High strength Al alloy 12... Brazing metal 2... Covering layer 4... Brazing metal 6... Wax 11...Covering layer
Claims (1)
２重量％未満で、Ｍｇを０．３〜５．６重量％含有する
高強度Ａｌ合金をろう付するに先立ち、前記高強度Ａｌ
合金の少なくともろう付表面に、純ＡｌまたはＭｇ含有
量が０．５重量％未満のＡｌ合金からなる被覆層を、１
００μｍ以上の厚さで設けておき、ろう材を溶解させて
前記高強度Ａｌ合金をろう付することを特徴とする高強
度Ａｌ合金のろう付方法 ２、Ｃｕ含有量が２．０重量％未満、Ｓｉ含有量が１．
２重量％未満で、Ｍｇを０．３〜５．６重量％含有する
ろう付構造用高強度Ａｌ合金の少なくともろう付表面に
、純ＡｌまたはＭｇ含有量が０．５重量％未満のＡｌ合
金からなる被覆層が、１００μｍ以上の厚さで設けられ
ていることを特徴とするろう付構造用高強度Ａｌ合金材 ３、Ｃｕ含有量が２．０重量％未満、Ｓｉ含有量が１．
２重量％未満で、Ｍｇを０．３〜５．６重量％含有する
高強度Ａｌ合金を芯材とし、この芯材の少なくともろう
付表面に、純ＡｌまたはＭｇ含有量が０．５重量％未満
のＡｌ合金からなる被覆層が、１００μｍ以上の厚さで
設けられており、この被覆層の表面に、ろう材が被覆さ
れていることを特徴とする高強度Ａｌ合金プレージング
シート[Claims] 1. Cu content is less than 2.0% by weight, Si content is 1.
Prior to brazing a high-strength Al alloy containing less than 2% by weight and 0.3-5.6% by weight of Mg, the high-strength Al
A coating layer made of pure Al or an Al alloy with an Mg content of less than 0.5% by weight is applied to at least the brazing surface of the alloy.
Method 2 for brazing high-strength Al alloy, characterized in that the high-strength Al alloy is brazed with a thickness of 00 μm or more and the brazing filler metal is melted, and the Cu content is less than 2.0% by weight. , Si content is 1.
Pure Al or an Al alloy with an Mg content of less than 0.5% by weight, at least on the brazing surface of a high-strength Al alloy for brazing structures containing 0.3 to 5.6% by weight of Mg and less than 2% by weight A high-strength Al alloy material 3 for brazing structures, characterized in that a coating layer consisting of is provided with a thickness of 100 μm or more, a Cu content of less than 2.0% by weight, and a Si content of 1.0% by weight.
A high-strength Al alloy containing 0.3 to 5.6% by weight of Mg and less than 2% by weight is used as a core material, and at least the brazing surface of this core material has a pure Al or Mg content of 0.5% by weight. A high-strength Al alloy plating sheet, characterized in that a coating layer made of an Al alloy with a thickness of 100 μm or more is provided, and the surface of the coating layer is coated with a brazing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3736590A JPH03243294A (en) | 1990-02-20 | 1990-02-20 | Brazing method for high-strength al alloy, high-strength al alloy for brazing structure and high-strength al alloy brazing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3736590A JPH03243294A (en) | 1990-02-20 | 1990-02-20 | Brazing method for high-strength al alloy, high-strength al alloy for brazing structure and high-strength al alloy brazing sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03243294A true JPH03243294A (en) | 1991-10-30 |
Family
ID=12495506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3736590A Pending JPH03243294A (en) | 1990-02-20 | 1990-02-20 | Brazing method for high-strength al alloy, high-strength al alloy for brazing structure and high-strength al alloy brazing sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03243294A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016194672A1 (en) * | 2015-06-04 | 2016-12-08 | 株式会社Uacj | Aluminum alloy clad material and brazing method |
| CN112501537A (en) * | 2020-11-11 | 2021-03-16 | 中国电子科技集团公司第三十八研究所 | Aluminum alloy surface low-temperature brazing modified coating and preparation method thereof |
-
1990
- 1990-02-20 JP JP3736590A patent/JPH03243294A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016194672A1 (en) * | 2015-06-04 | 2016-12-08 | 株式会社Uacj | Aluminum alloy clad material and brazing method |
| JP2016223001A (en) * | 2015-06-04 | 2016-12-28 | 株式会社Uacj | Aluminum alloy clad material and brazing method |
| EP3305925A4 (en) * | 2015-06-04 | 2019-03-20 | UACJ Corporation | Aluminum alloy clad material and brazing method |
| CN112501537A (en) * | 2020-11-11 | 2021-03-16 | 中国电子科技集团公司第三十八研究所 | Aluminum alloy surface low-temperature brazing modified coating and preparation method thereof |
| CN112501537B (en) * | 2020-11-11 | 2023-03-24 | 中国电子科技集团公司第三十八研究所 | Aluminum alloy surface low-temperature brazing modified coating and preparation method thereof |
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