JPH04300264A - Jig for hot joining - Google Patents
Jig for hot joiningInfo
- Publication number
- JPH04300264A JPH04300264A JP9159191A JP9159191A JPH04300264A JP H04300264 A JPH04300264 A JP H04300264A JP 9159191 A JP9159191 A JP 9159191A JP 9159191 A JP9159191 A JP 9159191A JP H04300264 A JPH04300264 A JP H04300264A
- Authority
- JP
- Japan
- Prior art keywords
- jig
- ceramics
- lower jig
- upper jig
- hot joining
- 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
- 238000005304 joining Methods 0.000 title abstract description 7
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- 238000003466 welding Methods 0.000 claims description 19
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 16
- 239000002184 metal Substances 0.000 abstract description 16
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 abstract description 9
- 229910000838 Al alloy Inorganic materials 0.000 abstract description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005524 ceramic coating Methods 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
- Ceramic Products (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、セラミックスと金属と
を精度よく熱圧接合することができる熱圧接用治具に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermopressure welding jig capable of accurately thermopressure welding ceramics and metals.
【０００２】0002
【従来の技術】例えば、ナトリウム−硫黄電池に使用さ
れる陽極金具と陰極金具とは電気的絶縁性を保持できる
ようセラミックスリングを介在させて熱圧接合されてお
り、その熱圧接用治具としては例えばインバー合金等の
低膨張性金属からなる上治具と下治具が用いられている
。[Prior Art] For example, anode metal fittings and cathode metal fittings used in sodium-sulfur batteries are thermo-pressure bonded with a ceramic ring interposed to maintain electrical insulation. For example, an upper jig and a lower jig made of a low-expansion metal such as an invar alloy are used.
【０００３】ところが、従来のこの種の低膨張性金属製
の熱圧接用治具においては、接合精度を高くしようとし
て印ろう嵌合を採用しクリアランスを０．１ｍｍ 以下
にすると、熱圧接合時の加熱により印ろう嵌合部分が焼
きついてしまい上治具と下治具とを分離できないという
問題点があった。一方、焼きつきを防止しようとして印
ろう嵌合部分のクリアランスを０．１ｍｍ 以上に大き
く設計すると、得られた製品の平行度、垂直度等の精度
が悪くなりナトリウム−硫黄電池の組立てができなかっ
たり、組立て時に溶接不良等を発生させて電池の耐久性
を著しく低下させる等の問題点があった。However, in conventional thermo-pressure welding jigs made of low-expansion metals of this type, if a solder fitting is used to increase the joining accuracy and the clearance is set to 0.1 mm or less, problems occur during thermo-pressure welding. There was a problem in that the upper jig and the lower jig could not be separated because the fitting portion of the plunger was burned due to heating. On the other hand, if the clearance of the fitting part of the stamping ring is designed to be larger than 0.1 mm in order to prevent seizure, the precision of parallelism, perpendicularity, etc. of the resulting product will deteriorate, making it impossible to assemble a sodium-sulfur battery. In addition, there were problems such as poor welding during assembly, which significantly reduced the durability of the battery.
【０００４】0004
【発明が解決しようとする課題】本発明は上記のような
従来の問題点を解決して、上治具と下治具の印ろう嵌合
部分のクリアランスを０．１ｍｍ 以下に小さくしても
上治具と下治具との焼きつきが確実に防止され、かつセ
ラミックスと金属とを精度よく熱圧接合することができ
る熱圧接用治具を提供することを目的として完成された
ものである。[Problems to be Solved by the Invention] The present invention solves the above-mentioned problems of the conventional technology, and even if the clearance between the dowel fitting portion of the upper jig and the lower jig is reduced to 0.1 mm or less, This was completed with the aim of providing a jig for thermo-pressure welding that can reliably prevent seizure between the upper jig and the lower jig and that can accurately join ceramics and metals by heat-pressure. .
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決するた
めになされた本発明の熱圧接用治具は、上治具と下治具
との間で被処理物を熱圧接合する熱圧接用治具において
、前記の上治具と下治具との嵌合部分を印ろう嵌合とし
て上治具と下治具の一方または双方の少なくとも嵌合面
をセラミックスで形成したことを特徴とするものである
。[Means for Solving the Problems] The thermo-compression welding jig of the present invention, which has been made to solve the above-mentioned problems, is a thermo-compression welding jig for thermo-pressure welding workpieces between an upper jig and a lower jig. The jig is characterized in that the fitting portion between the upper jig and the lower jig is a dowel fit, and at least the fitting surface of one or both of the upper jig and the lower jig is formed of ceramics. It is something to do.
【０００６】[0006]
【実施例】次に、本発明を図示の実施例について詳細に
説明する。図面はセラミックスリング１にアルミ合金か
らなる陽極金具２および陰極金具３を熱圧接合したナト
リウム−硫黄電池用部品を製造するための熱圧接用治具
を示すもので、上治具４と下治具５とから構成されてい
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained in detail with reference to the illustrated embodiments. The drawing shows a thermo-pressure welding jig for manufacturing sodium-sulfur battery parts in which an anode metal fitting 2 and a cathode metal fitting 3 made of aluminum alloy are heat-pressure bonded to a ceramic ring 1. It is composed of a tool 5.
【０００７】上治具の嵌合面４ａと下治具の嵌合面５ａ
とのクリアランスＣｒ は被処理物の許容できる平行度
ＨによってＣｒ ≦Ｈ×Ｌ／Ｄの関係でなければならな
い。
Ｄ：被処理物の平行度が評価される部分の最大直径Ｌ：
上治具の嵌合面４ａと下治具の嵌合面５ａとの接してい
る印ろう嵌合部の長さ
ナトリウム−硫黄電池用としてはこの平行度が特に厳し
く小さなクリアランスが必要である。ここで上治具４お
よび下治具５の材質をアルミナとした場合、上治具の嵌
合面４ａと下治具の嵌合面５ａとのクリアランスを３０
μｍ としても印ろう嵌合部分の焼きつきはなく高精度
な熱圧接合が得られた。また、アルミナの代わりに窒化
珪素を用いて同様の熱圧接合を行ったところ、クリアラ
ンスを２０μｍ としても印ろう嵌合部分の焼きつきは
なく作業性にも優れていた。前記のアルミナおよび窒化
珪素は低膨張材料であるばかりでなく強度、耐摩耗性に
優れているため熱圧接用治具として長期にわたり耐用で
き、また実用的であるので好ましい。更に、上記のクリ
アランスのもとで熱圧接合によって得られたナトリウム
−硫黄電池用部品は接合面に欠陥がなく優れた性能を発
揮した。[0007] Fitting surface 4a of the upper jig and fitting surface 5a of the lower jig.
The clearance Cr must satisfy the relationship Cr≦H×L/D depending on the allowable parallelism H of the object to be processed. D: Maximum diameter L of the part where the parallelism of the object to be processed is evaluated:
Length of the dowel fitting portion where the fitting surface 4a of the upper jig and the fitting surface 5a of the lower jig are in contact.For sodium-sulfur batteries, this parallelism is particularly severe and a small clearance is required. Here, when the material of the upper jig 4 and the lower jig 5 is alumina, the clearance between the fitting surface 4a of the upper jig and the fitting surface 5a of the lower jig is 30
Even with a diameter of μm, high-precision thermopressure bonding was achieved with no burning in the joint portion. Furthermore, when similar thermopressure bonding was carried out using silicon nitride instead of alumina, there was no seizure in the jointed area even with a clearance of 20 μm, and the workability was excellent. The above-mentioned alumina and silicon nitride are preferable because they are not only low expansion materials but also have excellent strength and wear resistance, so that they can be used as a jig for thermo-pressure welding for a long period of time and are practical. Furthermore, the sodium-sulfur battery parts obtained by thermopressure bonding under the above clearance exhibited excellent performance with no defects on the bonded surface.
【０００８】以上のように、上治具４と下治具５との嵌
合部分のクリアランスをできるだけ小さくして接合精度
を高くするに加えて、更に接合面の接合強度等の均一性
、特性向上のために、熱圧接合する際の許容される温度
範囲も極めて高い精度が要求される。実用上、信頼性の
高い熱圧接合を得るには熱圧接合時の被処理物内の温度
分布が均一であることが必要であり、更に昇温および降
温における被処理物の加熱・冷却曲線に上治具４および
下治具５がよく追従することも必要である。例えば、上
治具４および下治具５が夫々その比熱Ｃｐ および密度
ρとの積Ｃｐ×ρが０．７ ｃａｌ ／ｃｍ３ ℃以下
であって、かつ治具の熱放射率εが０．５ 以下である
材料からなる場合には、熱圧接合時の被処理物内の温度
差が７℃以内となって、この温度差範囲内であればナト
リウム−硫黄電池用部品として極めて優れた接合強度、
均一性および寸法精度等を有した実用上信頼性の高い熱
圧接合が得られることとなり好ましい。また、上記の関
係にある熱圧接用治具の場合には熱圧接合時の昇温・降
温曲線にもよく追従できることとなり好ましい。なお、
上治具４および下治具５にアルミナを使用した場合の被
処理物内の温度差は５℃であり、また、窒化珪素の場合
は２℃でいずれも好ましい温度差の範囲内であった。As described above, in addition to increasing the joining accuracy by reducing the clearance between the fitting portion of the upper jig 4 and the lower jig 5 as much as possible, it is possible to improve the uniformity and characteristics of the joint strength, etc. of the joint surfaces. To improve this, extremely high precision is required in the allowable temperature range during thermopressure bonding. In practice, in order to obtain highly reliable thermopressure bonding, it is necessary that the temperature distribution within the workpiece during thermopressure welding is uniform, and in addition, the heating and cooling curves of the workpiece as the temperature increases and decreases. It is also necessary for the upper jig 4 and the lower jig 5 to follow closely. For example, the upper jig 4 and the lower jig 5 each have a product Cp×ρ of their specific heat Cp and density ρ of 0.7 cal/cm3°C or less, and the heat emissivity ε of the jig is 0.5. When made of the following materials, the temperature difference within the workpiece during thermopressure bonding is within 7°C, and within this temperature difference range, the bonding strength is extremely excellent as a part for sodium-sulfur batteries. ,
This is preferable because a practically reliable thermopressure bonding having uniformity, dimensional accuracy, etc. can be obtained. Further, in the case of a jig for thermo-pressure welding having the above-mentioned relationship, it is possible to follow the temperature rise/temperature-fall curve during thermo-pressure welding well, which is preferable. In addition,
When alumina was used for the upper jig 4 and lower jig 5, the temperature difference within the workpiece was 5°C, and when silicon nitride was used, it was 2°C, both within the preferred temperature difference range. .
【０００９】前記の上治具４と下治具５はアルミナや窒
化珪素に限定されるものではなく、炭化珪素等の他のセ
ラミックスも適用できる。また、上治具４と下治具５は
実施例のようにいずれもセラミックスで構成する他、い
ずれか一方のみをセラミックスで構成し他方をニッケル
やニッケル合金等の低膨張性金属で構成したものとして
もよい。また、第２図に示されるように上治具４の全体
を低膨張性金属で構成してその少なくとも嵌合面４ａが
セラミックスで構成されるようにセラミックコーティン
グ層を形成したものや、第３図に示されるように下治具
５の全体を低膨張性金属で構成しその少なくとも嵌合面
５ａがセラミックスで構成されるようにセラミックコー
ティング層を形成したものとしてもよい。The upper jig 4 and the lower jig 5 are not limited to alumina or silicon nitride, but other ceramics such as silicon carbide can also be used. In addition, the upper jig 4 and the lower jig 5 are both made of ceramics as in the embodiment, or only one of them is made of ceramics and the other is made of a low-expansion metal such as nickel or nickel alloy. You can also use it as Further, as shown in FIG. 2, the upper jig 4 may be entirely made of a low-expansion metal and a ceramic coating layer may be formed so that at least the fitting surface 4a thereof is made of ceramics, or a third As shown in the figure, the entire lower jig 5 may be made of a low-expansion metal, and a ceramic coating layer may be formed so that at least the fitting surface 5a thereof is made of ceramic.
【００１０】0010
【作用】以上のように構成されたものは、従来のこの種
熱圧接用治具と同様に上治具４と下治具５との間に被処
理物を介在したうえ両治具を上下方向にクランプして５
００〜６００℃で熱圧接合するものであるが、本発明に
おいては上治具４と下治具５には両者の嵌合精度を向上
させるための印ろう嵌合部分の嵌合面４ａ、５ａが設け
られており、しかも、この嵌合面４ａ、５ａのいずれか
一方または双方がセラミックスで形成されているので、
該嵌合面４ａ、５ａのクリアランスを小さくしても焼き
つきの発生を確実に防止できることとなり、上治具４と
下治具５との嵌合精度を極限にまで向上できることとな
る。この結果、設計値どおりの平行度、垂直度等を有し
て極めて精度の高いセラミックスと金属との接合製品が
得られることとなり、以後のナトリウム−硫黄電池の組
立て不良を発生させることもなく、また得られる電池の
寿命等も大幅に向上させて高品質なナトリウム−硫黄電
池を効率よく生産できることとなる。[Operation] The device constructed as described above has a workpiece interposed between the upper jig 4 and the lower jig 5, and both jigs are moved up and down, similar to the conventional jig for thermocompression welding of this type. Clamp in the direction 5
In the present invention, the upper jig 4 and the lower jig 5 are provided with a fitting surface 4a of the dowel fitting portion to improve the fitting precision of both. 5a, and either or both of the fitting surfaces 4a, 5a are made of ceramics, so
Even if the clearance between the fitting surfaces 4a and 5a is reduced, the occurrence of seizure can be reliably prevented, and the fitting accuracy between the upper jig 4 and the lower jig 5 can be improved to the utmost. As a result, an extremely precise ceramic-metal bonded product with parallelism, perpendicularity, etc. as designed values can be obtained, and there will be no assembly defects in subsequent sodium-sulfur batteries. Furthermore, the life span of the obtained battery is greatly improved, and high quality sodium-sulfur batteries can be efficiently produced.
【００１１】[0011]
【効果】以上の説明からも明らかなように、本発明にお
いては上治具と下治具の嵌合部分を精度のよい印ろう嵌
合としても該嵌合部分で焼きつきが発生することを確実
に防止することができるとともに、セラミックスと金属
とを精度よく熱圧接合することができるものであり、更
には、最も摩耗を生じ易い印ろう嵌合部分を機械的強度
に優れた耐久性のあるセラミックスで形成してあるので
何度でも繰り返し使用ができ優れた経済性も発揮できる
という利点も有するものである。よって、本発明は従来
の問題点を一掃した熱圧接用治具として、産業の発展に
寄与するところは極めて大である。[Effects] As is clear from the above explanation, in the present invention, even if the fitting portion of the upper jig and the lower jig is a high-precision dowel fitting, it is possible to prevent seizure from occurring at the fitting portion. It is possible to reliably prevent this, and it is also possible to accurately thermopressure bond ceramics and metals.Furthermore, it is possible to connect ceramics and metals with a durable material with excellent mechanical strength. Since it is made of a certain ceramic, it also has the advantage of being able to be used repeatedly and exhibiting excellent economic efficiency. Therefore, the present invention greatly contributes to the development of industry as a jig for thermo-pressure welding that eliminates the problems of the prior art.
【図１】本発明の実施例を示す正面断面図である。FIG. 1 is a front sectional view showing an embodiment of the present invention.
【図２】他の上治具の実施例を示す正面断面図である。FIG. 2 is a front sectional view showing another embodiment of the upper jig.
【図３】他の下治具の実施例を示す正面断面図である。FIG. 3 is a front sectional view showing another embodiment of the lower jig.
４ 上治具 ４ａ 上治具の嵌合面 ５ 下治具 ５ａ 下治具の嵌合面 4 Upper jig 4a Upper jig fitting surface 5 Lower jig 5a Lower jig fitting surface
Claims (1)
圧接合する熱圧接用治具において、前記の上治具と下治
具との嵌合部分を印ろう嵌合として上治具と下治具の一
方または双方の少なくとも嵌合面をセラミックスで形成
したことを特徴とする熱圧接用治具。Claim 1: In a thermo-pressure welding jig for thermo-pressure welding workpieces between an upper jig and a lower jig, the mating portions of the upper jig and the lower jig are joined by a solder fitting. A jig for thermo-pressure welding, characterized in that at least the fitting surface of one or both of the upper jig and the lower jig is formed of ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9159191A JPH075394B2 (en) | 1991-03-28 | 1991-03-28 | Jig for thermal pressure welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9159191A JPH075394B2 (en) | 1991-03-28 | 1991-03-28 | Jig for thermal pressure welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04300264A true JPH04300264A (en) | 1992-10-23 |
| JPH075394B2 JPH075394B2 (en) | 1995-01-25 |
Family
ID=14030796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9159191A Expired - Lifetime JPH075394B2 (en) | 1991-03-28 | 1991-03-28 | Jig for thermal pressure welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075394B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5965534B1 (en) * | 2015-12-01 | 2016-08-10 | 日本碍子株式会社 | Jig for producing a hot-pressure joined body, a set of jigs for producing a hot-pressure joined body, a device for producing a hot-pressure joined body, and a method for producing a hot-pressure joined body |
-
1991
- 1991-03-28 JP JP9159191A patent/JPH075394B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH075394B2 (en) | 1995-01-25 |
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