JPH06321646A - Brazing method using active brazing filler metal - Google Patents

Brazing method using active brazing filler metal

Info

Publication number
JPH06321646A
JPH06321646A JP5109692A JP10969293A JPH06321646A JP H06321646 A JPH06321646 A JP H06321646A JP 5109692 A JP5109692 A JP 5109692A JP 10969293 A JP10969293 A JP 10969293A JP H06321646 A JPH06321646 A JP H06321646A
Authority
JP
Japan
Prior art keywords
brazing
active
ceramic
metal
carbon
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
Application number
JP5109692A
Other languages
Japanese (ja)
Inventor
Nobuyuki Yoshioka
信行 吉岡
Taiji Noda
泰司 野田
Toshimasa Fukai
利真 深井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Original Assignee
Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meidensha Corp, Meidensha Electric Manufacturing Co Ltd filed Critical Meidensha Corp
Priority to JP5109692A priority Critical patent/JPH06321646A/en
Publication of JPH06321646A publication Critical patent/JPH06321646A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To provide a brazing method using an active brazing filler metal by which satisfactory brazing can be carried out at the time of brazing ceramic to a metal or ceramic with the active brazing filler metal. CONSTITUTION:A cylindrical part 1 made of alumina ceramics is brazed to copper flanges 2, 3 with an active brazing filler metal 4, 5 by heating in vacuum or in an inert atmosphere not contg. carbon.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、真空インタラプタな
どの製造における活性ロー材を用いたロー付け方法に関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brazing method using an active brazing material in the production of vacuum interrupters and the like.

【0002】[0002]

【従来の技術】近年、Ti及びZr等の活性金属を含有
する活性ロー材を用いて、金属とセラミック、あるいは
セラミックとセラミックをロー付けすることが行われて
いる。又、ロー付けに用いる真空炉の加熱源としては、
金属ヒータ、セラミックヒータ、カーボンヒータ等が用
いられており、大型部品や量産部品の製造に際しては真
空炉も大型となるため、主にMoからなる金属ヒータや
カーボンヒータが用いられている。
2. Description of the Related Art In recent years, an active brazing material containing an active metal such as Ti and Zr has been used to braze a metal and a ceramic or a ceramic and a ceramic. Also, as the heating source of the vacuum furnace used for brazing,
Metal heaters, ceramic heaters, carbon heaters, etc. are used. Since a vacuum furnace also becomes large in the production of large-sized components and mass-produced components, metal heaters and carbon heaters mainly made of Mo are used.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上記し
たように真空炉中で活性金属を含有する活性ロー材を用
いてセラミックと金属又はセラミックとをロー付けする
際に、加熱源としてカーボンヒータを用いるとロー付け
の接合性が十分でなかった。
However, when the ceramic and the metal or the ceramic are brazed by using the active brazing material containing the active metal in the vacuum furnace as described above, the carbon heater is used as the heating source. And the joining property of brazing was not enough.

【0004】この発明は上記のような課題を解決するた
めに成されたものであり、セラミックと金属又はセラミ
ックとを活性ロー材を用いてロー付けする際に十分な接
合性を得ることができる活性ロー材を用いたロー付け方
法を得ることを目的とする。
The present invention has been made to solve the above problems, and it is possible to obtain sufficient bondability when brazing a ceramic and a metal or a ceramic with an active brazing material. The purpose is to obtain a brazing method using an active brazing material.

【0005】[0005]

【課題を解決するための手段】この発明に係る活性ロー
材を用いたロー付け方法は、セラミックと金属又はセラ
ミックとをカーボンを含まない真空又は不活性雰囲気中
で加熱ロー付けするものである。
A brazing method using an active brazing material according to the present invention comprises heating brazing a ceramic and a metal or ceramic in a carbon-free vacuum or an inert atmosphere.

【0006】[0006]

【作用】この発明においては、セラミックと金属又はセ
ラミックとが活性ロー材によりカーボンを含まない真空
又は不活性雰囲気中で加熱ロー付けされる。
In the present invention, the ceramic and the metal or the ceramic are heated and brazed by the active brazing material in a carbon-free vacuum or an inert atmosphere.

【0007】[0007]

【実施例】以下、この発明の実施例を図面とともに説明
する。図1はこの実施例により製造される真空インタラ
プタの真空容器のロー付け工程における断面図であり、
1は直径60mm、肉厚5mmの円筒状に形成された円
筒部であり、アルミナセラミックスから形成されてい
る。2,3はAg−Cu−Tiからなる活性ロー材4,
5を介して円筒部1の両端に配設されたフランジであ
り、Cuにより形成されている。活性ロー材4,5は外
径59mm、内径51mm、厚さ0.1mmのワッシャ
状であり、その融点は750℃である。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view in a brazing process of a vacuum container of a vacuum interrupter manufactured according to this embodiment,
Reference numeral 1 is a cylindrical portion having a diameter of 60 mm and a wall thickness of 5 mm, which is formed of alumina ceramics. 2, 3 are active brazing materials made of Ag-Cu-Ti 4,
The flanges are arranged at both ends of the cylindrical portion 1 via 5 and are made of Cu. The active brazing materials 4 and 5 are washers having an outer diameter of 59 mm, an inner diameter of 51 mm, and a thickness of 0.1 mm, and their melting points are 750 ° C.

【0008】上記した円筒部1とフランジ2,3のロー
付けを活性ロー材4,5を用いて、(1)加熱源として
Moヒータを用いた場合、(2)加熱源としてカーボン
ヒータを用いた場合、(3)真空炉としてカーボンルツ
ボを用い、加熱源としてMoヒータを用いた場合、の3
つの場合について5×10-5Torrの真空中で850
℃で10分間加熱した。この結果、(1)の場合には十
分な接合性が得られ、(2),(3)の場合には十分な
接合性が得られなかった。これは、(2),(3)の場
合には加熱中に微量なカーボンが存在する雰囲気である
ためと判明した。
When the brazing of the cylindrical portion 1 and the flanges 2 and 3 is performed by using the active brazing materials 4 and 5, (1) when the Mo heater is used as the heating source, (2) the carbon heater is used as the heating source. In the case where (3) the carbon crucible is used as the vacuum furnace and the Mo heater is used as the heating source,
850 in a vacuum of 5 × 10 -5 Torr for each case
Heated at 0 ° C for 10 minutes. As a result, in the case of (1), sufficient bondability was obtained, and in the cases of (2) and (3), sufficient bondability was not obtained. This was found to be due to the atmosphere in which a slight amount of carbon was present during heating in the cases of (2) and (3).

【0009】このように微量なカーボンが存在する雰囲
気では活性ロー材4,5の十分な接合性が得られないの
は、次のように考えられる。即ち、活性ロー材4,5は
一般的にTiやZr(この例ではTi)等酸素と結合し
やすい活性金属を含んでいる。このため、活性ロー材は
アルミナセラミックスの表面でアルミナセラミックス中
の酸素と反応して活性ロー材がぬれ広がり、アルミナセ
ラミックスからなる円筒部1とCuからなるフランジ
2,3が接合される(Ceramic Bulleti
n 67−2,P.375,1988年)。しかし、加
熱雰囲気中に微量のカーボンが存在すると、Ti−C,
O−Cの反応が生じ、Ti−Oの反応が阻害されるため
と考えられる。
The reason why sufficient bonding properties of the active brazing materials 4, 5 cannot be obtained in such an atmosphere containing a small amount of carbon is considered as follows. That is, the active brazing materials 4 and 5 generally include active metals such as Ti and Zr (Ti in this example) that easily bond with oxygen. Therefore, the active brazing material reacts with oxygen in the alumina ceramics on the surface of the alumina ceramics so that the active brazing material wets and spreads, and the cylindrical portion 1 made of alumina ceramics and the flanges 2 and 3 made of Cu are joined (Ceramic Bulleti).
n 67-2, p. 375, 1988). However, if a trace amount of carbon is present in the heating atmosphere, Ti--C,
It is considered that the reaction of O—C occurs and the reaction of Ti—O is inhibited.

【0010】なお、上記実施例においてはセラミックと
金属のロー付けの場合について述べたが、セラミックと
セラミックのロー付けの場合にも適用することができ
る。セラミックとしては、アルミナの外にSiC,Si
34,MgO等がロー付け可能であり、金属としてはC
uの外にコバール、鋼等がロー付け可能である。又、上
記実施例では真空雰囲気中で加熱ロー付けしたが、不活
性雰囲気中で加熱ロー付けしてもよい。さらに、カーボ
ンを含まない雰囲気で加熱ロー付けしなければならない
ので、加熱源としてはMoヒータや赤外線ヒータ等のカ
ーボンを含まないものが用いられる。また、被ロー付け
部材を加熱炉中で載置する架台としては、耐熱鋼等のカ
ーボンの含有が少ないものが用いられ、カーボン架台は
使用しない。さらに、被ロー付け部材を容器内に設置し
てロー付けする場合は、カーボン製容器は用いない。
In the above embodiment, the case of brazing ceramic and metal is described, but the present invention can also be applied to the case of brazing ceramic and ceramic. As ceramics, in addition to alumina, SiC, Si
3 N 4 , MgO, etc. can be brazed, and the metal is C
In addition to u, kovar, steel, etc. can be brazed. Further, in the above embodiment, the heating brazing is performed in the vacuum atmosphere, but the heating brazing may be performed in the inert atmosphere. Furthermore, since heating brazing must be performed in a carbon-free atmosphere, a heating source that does not contain carbon, such as a Mo heater or an infrared heater, is used. Further, as a mount on which the members to be brazed are placed in the heating furnace, a mount containing a small amount of carbon such as heat resistant steel is used, and the carbon mount is not used. Further, when the member to be brazed is installed in the container for brazing, the carbon container is not used.

【0011】[0011]

【発明の効果】以上のようにこの発明によれば、セラミ
ックと金属又はセラミックとを活性金属を含有する活性
ロー材を用いてロー付けする場合にカーボンを含まない
真空又は不活性雰囲気中でロー付けしており、活性金属
と酸素との反応をカーボンにより阻害されることはな
く、良好なロー付けの接合性を得ることができる。
As described above, according to the present invention, when the ceramic and the metal or the ceramic is brazed by using the active brazing material containing the active metal, the brazing is performed in a vacuum or an inert atmosphere containing no carbon. Since the reaction between the active metal and oxygen is not hindered by carbon, good brazing property can be obtained.

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

【図1】この実施例による真空インタラプタの真空容器
のロー付け工程における断面図である。
FIG. 1 is a cross-sectional view in a brazing process of a vacuum container of a vacuum interrupter according to this embodiment.

【符号の説明】 1…円筒部 2,3…フランジ 4,5…活性ロー材[Explanation of reference numerals] 1 ... Cylindrical portion 2, 3 ... Flange 4,5 ... Active brazing material

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 FI 技術表示箇所 H01H 33/66 F 8121−5G ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display location H01H 33/66 F 8121-5G

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 セラミックと金属又はセラミックとを活
性金属を含有する活性ロー材を用いてカーボンを含まな
い真空又は不活性雰囲気中で加熱ロー付けすることを特
徴とする活性ロー材を用いたロー付け方法。
1. A brazing material using an active brazing material, characterized in that a ceramic and a metal or a ceramic are heated and brazed by using an active brazing material containing an active metal in a vacuum or an inert atmosphere containing no carbon. How to attach.
JP5109692A 1993-05-12 1993-05-12 Brazing method using active brazing filler metal Pending JPH06321646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5109692A JPH06321646A (en) 1993-05-12 1993-05-12 Brazing method using active brazing filler metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5109692A JPH06321646A (en) 1993-05-12 1993-05-12 Brazing method using active brazing filler metal

Publications (1)

Publication Number Publication Date
JPH06321646A true JPH06321646A (en) 1994-11-22

Family

ID=14516781

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5109692A Pending JPH06321646A (en) 1993-05-12 1993-05-12 Brazing method using active brazing filler metal

Country Status (1)

Country Link
JP (1) JPH06321646A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006527162A (en) * 2003-06-13 2006-11-30 ジョー−ワン ハン、 Ceramic bonding method: Reaction diffusion bonding

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006527162A (en) * 2003-06-13 2006-11-30 ジョー−ワン ハン、 Ceramic bonding method: Reaction diffusion bonding

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