JP2679268B2 - Manufacturing method of brazing material - Google Patents

Manufacturing method of brazing material

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Publication number
JP2679268B2
JP2679268B2 JP16644689A JP16644689A JP2679268B2 JP 2679268 B2 JP2679268 B2 JP 2679268B2 JP 16644689 A JP16644689 A JP 16644689A JP 16644689 A JP16644689 A JP 16644689A JP 2679268 B2 JP2679268 B2 JP 2679268B2
Authority
JP
Japan
Prior art keywords
brazing material
brazing
weight
powder
shape
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.)
Expired - Fee Related
Application number
JP16644689A
Other languages
Japanese (ja)
Other versions
JPH0332488A (en
Inventor
佳行 柏木
信行 吉岡
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Meidensha Corp
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Meidensha Corp
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Filing date
Publication date
Application filed by Meidensha Corp filed Critical Meidensha Corp
Priority to JP16644689A priority Critical patent/JP2679268B2/en
Publication of JPH0332488A publication Critical patent/JPH0332488A/en
Application granted granted Critical
Publication of JP2679268B2 publication Critical patent/JP2679268B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【発明の詳細な説明】 A.産業上の利用分野 本発明は、ロウ材に係り、特にAgとAlとCuを主成分と
するAg−Al−Cu系のロウ材に関したものである。
DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a brazing material, and more particularly to an Ag-Al-Cu based brazing material containing Ag, Al and Cu as main components.

B.発明の概要 本発明は、Ag(銀),Al(アルミニウム)、Cu(銅)
を主成分としたAg−Al−Cu系のロウ材であり、 25〜80重量%のAg粉末と,14〜75重量%のAl粉末と、
1〜30重量%のCu粉末との混合粉末を薄い板状に圧縮成
形するロウ材の製造方法である。
B. Summary of the Invention The invention is based on Ag (silver), Al (aluminum), Cu (copper).
Is a brazing filler metal of Ag-Al-Cu system containing 25 to 80% by weight of Ag powder and 14 to 75% by weight of Al powder,
This is a method for producing a brazing material, in which a mixed powder of 1 to 30% by weight of Cu powder is compression molded into a thin plate shape.

C.従来の技術 金属の接合にロウ材を用いることは一般的に行われて
おり、その際のロウ材は、取り扱いの簡便な線状(線ロ
ウ)、板状(板ロウ)の形で使用されるのが一般的であ
る。
C. Conventional technology A brazing material is generally used for joining metals, and the brazing material at that time is in the form of a line (line brazing) or a plate (plate brazing) that is easy to handle. It is commonly used.

ロウ材の成分としては、接合金属等の条件によって選
択できるように各種のものがあり、その一つにAg,Alを
主成分としたAg−Al系のロウ材がある。
As the components of the brazing material, there are various types that can be selected according to the conditions of the joining metal and the like.

D.発明が解決しようとする課題 一般的に知られているAg−Alロウ材は、Ag95−Al5
(重量%)であり、このロウ材にあっては、ロウ付温度
が900℃程度となり、接合部材及び他の構成部材に熱的
悪影響を与える場合がある。
D. Problems to be Solved by the Invention Generally known Ag-Al brazing material is Ag95-Al5.
(% By weight), and this brazing material has a brazing temperature of about 900 ° C., which may adversely affect the joining member and other components thermally.

しかして、Alを20〜50重量%含有させると、約566℃
程度で共晶点を持つことになり、ロウ付温度としては、
熱的悪影響の少ない約650℃程度の低温にできる利点が
ある。
Thus, when Al is contained in an amount of 20 to 50% by weight, about 566 ° C.
It will have a eutectic point to some extent, and as the brazing temperature,
There is an advantage that the temperature can be reduced to about 650 ° C, which has less adverse effects on heat.

しかし、Alを6〜7重量%以上含有すると金属間化合
物(例えばAg3Al)を作り、硬くて延びがなくなり、圧
延等の加工ができず、線材(例えば外形1mmのもの)、
板材(例えば0.1〜0.5mmのもの)に加工出来ないもので
ある。
However, when Al is contained in an amount of 6 to 7% by weight or more, an intermetallic compound (for example, Ag3Al) is formed, which is hard and does not extend, and cannot be processed by rolling, etc.
It cannot be processed into a plate material (for example, 0.1 to 0.5 mm).

従って、あえて低温用のAg−Alロウ材(例えばAg70−
Al30)が必要な場合には各成分の金属粉末を混合し、こ
の混合粉末の状態(または若干の加工を加えて)にて使
用せざるを得ないのが現状である。
Therefore, a low-temperature Ag-Al brazing material (eg, Ag70-
If Al30) is required, the metal powder of each component must be mixed and used in the state of this mixed powder (or with some processing) before use.

このために、取り扱いが煩雑であり、しかも適応場所
に制限を受けてしまい、その上接合特性の安定性に欠け
るといった問題がある。
For this reason, there is a problem that the handling is complicated, the application place is limited, and the stability of the bonding property is insufficient.

E.課題を解決するための手段 発明者らは、Ag,Alの粉末をプラスマ溶射して薄膜状
のロウ材を形成することを試みた。
E. Means for Solving the Problems The inventors tried to form a thin film brazing material by plasma spraying Ag and Al powders.

その結果、比較的良好な薄膜状のAg−Alロウ材を形成
できたが、新たに次のような課題が判明した。
As a result, a relatively good thin-film Ag-Al brazing material could be formed, but the following problems were newly found.

任意の形状に加工するには強度が不足している。Insufficient strength to process into arbitrary shape.

例えばCu部材をロウ付接合した場合に、Alの一部がCu
部材中に拡散して、ロウ材の初期組成からずれてしま
い、ロウ材の厚みにもよるが接合部にクラックが生じる
ことがある。
For example, when brazing Cu members, part of the Al is Cu
It may diffuse into the member and deviate from the initial composition of the brazing material, and cracks may occur in the joint portion depending on the thickness of the brazing material.

原料を溶射することから、原料の損失があり、また設
定初期組成と、出来上がり組成との間に違いが生じる問
題がある。
Since the raw material is sprayed, there is a problem that there is a loss of the raw material and there is a difference between the set initial composition and the finished composition.

そこで発明者らは、Cuを添加して上記の課題を解決で
きないか試みた。その結果、25〜80重量%のAgと、14〜
75重量%のAlと、1〜30重量%のCuとでロウ材を形成す
れば上記の問題が解決できて良好なロウ付特性が得られ
ることが判った。
Therefore, the inventors have tried to add Cu to solve the above problems. As a result, 25-80% by weight Ag and 14-
It has been found that if the brazing material is formed of 75 wt% Al and 1 to 30 wt% Cu, the above problems can be solved and good brazing characteristics can be obtained.

本発明は、25〜80重量%のAg粉末と、14〜75重量%の
Al粉末と、1〜30重量%のCu粉末との混合粉末を圧縮成
形して得る薄い板状のロウ材の製造方法である。
The present invention comprises 25-80% by weight of Ag powder and 14-75% by weight of
It is a method for producing a thin plate-shaped brazing material obtained by compression molding a mixed powder of Al powder and 1 to 30% by weight of Cu powder.

しかして、Ag,Al,Cuが上述の範囲以外(未満、及び越
える場合)の場合にあっては、各々の成分の特性が顕著
となって、ロウ付性,接合特性が急激に低下するもので
ある。
However, when Ag, Al, and Cu are out of the above range (less than or more than the above range), the properties of each component become remarkable, and the brazing property and the bonding property decrease sharply. Is.

なお、 ロウ材の組成は、Agを30〜58重量%、Alを26〜60重量
%、Cuを10〜25重量%とするのが最も良好なロウ付特性
結果が得られる。
The composition of the brazing material is 30 to 58% by weight of Ag, 26 to 60% by weight of Al, and 10 to 25% by weight of Cu to obtain the best brazing property result.

Ag,Al,Cu以外には、不可避不純物、接合金属に対応し
てロウ付性向上のために添加する他の成分を含有しても
差し支えない。
In addition to Ag, Al, and Cu, other components added to improve brazing property in accordance with unavoidable impurities and joining metals may be contained.

粉末は、−100メッシュ以下(149μm以下)の粒径の
ものが好ましい。またAlは、大気中(酸素存在下)で微
粉末になると爆発,発火の恐れがあるので、粒径は20μ
m以上とするのが望ましい。
The powder preferably has a particle size of −100 mesh or less (149 μm or less). Also, Al may explode or ignite if it becomes a fine powder in the atmosphere (in the presence of oxygen), so the particle size is 20 μm.
m or more.

圧縮成形体の形状は、金型にて任意の形状にすること
ができ、ロウ付箇所の形状に合わせて、例えばリング
状,円形状に圧縮成形して得る。または圧縮成形して得
た板をレーザ加工等の手段にて所望の形状に加工するも
のである。
The shape of the compression-molded body can be any shape using a mold, and the compression-molded body can be obtained by compression-molding into a ring shape or a circular shape, for example, according to the shape of the brazed portion. Alternatively, the plate obtained by compression molding is processed into a desired shape by means such as laser processing.

F.作用 原料の混合粉末を薄い板状に圧縮成形するので、金型
形状にて任意の形状のロウ材を容易に得ることができ、
しかも圧縮成形しているのでロウ材配置時のハンドリン
グ時に形状が損なわれることは無く、適応箇所に制限の
無いAg−Al−Cu系のロウ材を容易に得ることができる。
F. Action Since the mixed powder of the raw materials is compression molded into a thin plate shape, it is possible to easily obtain a brazing material of any shape in the mold shape,
Moreover, since it is compression-molded, the shape is not impaired during handling when arranging the brazing material, and it is possible to easily obtain an Ag-Al-Cu based brazing material with no restrictions on the applicable locations.

G.実施例 本発明を実施例に基づいて詳細に説明する。G. Examples The present invention will be described in detail based on examples.

成分比が、Ag:Al:Cu=約40:40:20(重量%)となるよ
うに坪量した、粒径が325メッシュ以下(−325メッシ
ュ)のAg粉末(80g)とAl粉末(160g)とCu粉末(40g)
とを用意し、これら粉末を混合機で充分に混合する。
Ag powder (80 g) and Al powder (160 g) with a particle size of 325 mesh or less (-325 mesh), grammage so that the component ratio is Ag: Al: Cu = about 40:40:20 (wt%) ) And Cu powder (40g)
And are prepared, and these powders are thoroughly mixed with a mixer.

得られた混合粉末から約1.5g分取し、径が40mmの金型
に均一に充填し、30トンで加圧成形して厚さ0.4mmの円
形状の薄い板状のロウ材を得た。
Approximately 1.5 g of the obtained mixed powder was taken, uniformly filled in a mold having a diameter of 40 mm, and pressure-molded at 30 tons to obtain a circular thin plate-shaped brazing material having a thickness of 0.4 mm. .

このロウ材を用いて真空中(10-5torr)で、且つ650
℃の温度にてCu部材同志の接合を試みた結果、ロウ材の
流れも良く充分に接合されていることが確認された。
This brazing material is used in vacuum (10 -5 torr) and 650
As a result of trying joining the Cu members together at a temperature of ℃, it was confirmed that the flow of the brazing material was good and the joining was sufficient.

次に、成分以外の条件は前述の場合と同じくして各種
組成のロウ材を製作し接合実験を行った。
Next, the brazing materials having various compositions were manufactured under the same conditions as those described above except for the components, and a joining experiment was conducted.

その結果図に示す組成範囲、すなわちAgが25〜80重量
%、Alが14〜75重量%、Cuが1〜30重量%であれば、良
好なロウ付特性が得られ、この範囲以外の場合には、ロ
ウ付部に「クラック」、「剥離」等のロウ付特性を悪化
させる要因が顕著に発生した。
As a result, if the composition range shown in the figure, that is, 25 to 80% by weight of Ag, 14 to 75% by weight of Al, and 1 to 30% by weight of Cu, good brazing characteristics are obtained. On the other hand, the factors that deteriorate the brazing characteristics such as "crack" and "peeling" at the brazed portion remarkably occurred.

一方、特にAgが30〜58重量%、Alが26〜60重量%、Cu
が10〜25重量%の場合には、強固な結合組織が得られ安
定したロウ付特性結果を得ることができた。
On the other hand, especially 30 to 58 wt% Ag, 26 to 60 wt% Al, Cu
When 10 to 25% by weight, a strong connective structure was obtained and stable brazing property results could be obtained.

H.発明の効果 本発明のロウ材は、原料のAg,Al,Cuの混合粉末を圧縮
成形するので、薄い板状のAg−Al系のロウ材の容易に得
ることができる。
H. Effect of the Invention Since the brazing material of the present invention is compression-molded with a mixed powder of raw materials Ag, Al and Cu, a thin plate-shaped Ag-Al brazing material can be easily obtained.

しかも金型の形状を選択することにより任意の形状の
ロウ材を容易に得ることができ、適応箇所に制限の無い
板状のロウ材を得ることができる。
Moreover, by selecting the shape of the mold, it is possible to easily obtain a brazing material having an arbitrary shape, and it is possible to obtain a plate-shaped brazing material having no restriction on the applicable position.

また、ロウ付温度が約650℃程度の比較的低い温度の
ロウ材であるから、接合部材及び他の構成部材に与える
熱的影響を軽減することができ、しかも、銅に限らず
鉄,ステンレス鋼,コバール合金,チタン,ニッケル等
の各種金属材料からなる部材を良好に接合できる。
Also, since the brazing temperature is a relatively low brazing temperature of about 650 ° C, it is possible to reduce the thermal effect on the joining member and other constituent members, and not only copper but also iron and stainless steel. Good joining of members made of various metal materials such as steel, Kovar alloy, titanium and nickel.

従って、真空機器、電力機器(例えば真空インタラプ
タ、GTO)、電子機器、産業機器等の各種のロウ付箇所
に広く適用することができて、生産性の向上と価格低減
を図ることができる。
Therefore, the present invention can be widely applied to various brazing portions of vacuum equipment, power equipment (for example, vacuum interrupter, GTO), electronic equipment, industrial equipment, and the like, and can improve productivity and reduce cost.

【図面の簡単な説明】[Brief description of the drawings]

図は、実験結果に基づく有用なロウ材の組成範囲の説明
図である。
The figure is an explanatory view of the composition range of a useful brazing material based on the experimental results.

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平3−32494(JP,A) 特開 平3−32492(JP,A) 特開 平3−32489(JP,A) 特開 平3−32488(JP,A) 特公 昭44−27451(JP,B1) 特許2605841(JP,B2) ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-32494 (JP, A) JP-A-3-32492 (JP, A) JP-A-3-32489 (JP, A) JP-A-3- 32488 (JP, A) JP-B-44-27451 (JP, B1) Patent 2605841 (JP, B2)

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】AgとAlとCuとを主成分とするロウ材であっ
て、 25〜80重量%のAg粉末と、14〜75重量%のAl粉末と、1
〜30重量%のCu粉末との混合粉末を薄い板状に圧縮成形
することを特徴とするロウ材の製造方法。
1. A brazing material containing Ag, Al and Cu as main components, which comprises 25 to 80% by weight of Ag powder, 14 to 75% by weight of Al powder, and 1.
A method for producing a brazing material, which comprises compression-molding a mixed powder containing 30 to 30% by weight of Cu powder into a thin plate shape.
JP16644689A 1989-06-28 1989-06-28 Manufacturing method of brazing material Expired - Fee Related JP2679268B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16644689A JP2679268B2 (en) 1989-06-28 1989-06-28 Manufacturing method of brazing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16644689A JP2679268B2 (en) 1989-06-28 1989-06-28 Manufacturing method of brazing material

Publications (2)

Publication Number Publication Date
JPH0332488A JPH0332488A (en) 1991-02-13
JP2679268B2 true JP2679268B2 (en) 1997-11-19

Family

ID=15831559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16644689A Expired - Fee Related JP2679268B2 (en) 1989-06-28 1989-06-28 Manufacturing method of brazing material

Country Status (1)

Country Link
JP (1) JP2679268B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3398203B2 (en) * 1994-02-15 2003-04-21 日本発条株式会社 Aluminum alloy and copper brazing filler metal and composites joined by this brazing filler metal
AU2003296160B2 (en) * 2003-07-07 2007-08-30 Ishikawajima-Harima Heavy Industries Co., Ltd. Brazing filler metal sheet and method for production thereof

Also Published As

Publication number Publication date
JPH0332488A (en) 1991-02-13

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