JPS5935495B2 - Method for manufacturing filament support - Google Patents
Method for manufacturing filament supportInfo
- Publication number
- JPS5935495B2 JPS5935495B2 JP51156483A JP15648376A JPS5935495B2 JP S5935495 B2 JPS5935495 B2 JP S5935495B2 JP 51156483 A JP51156483 A JP 51156483A JP 15648376 A JP15648376 A JP 15648376A JP S5935495 B2 JPS5935495 B2 JP S5935495B2
- Authority
- JP
- Japan
- Prior art keywords
- support
- end shield
- welding
- filament support
- filament
- 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
Links
Landscapes
- Microwave Tubes (AREA)
- Solid Thermionic Cathode (AREA)
Description
【発明の詳細な説明】
本発明はフィラメント支持体を構成するエンドシールド
とサポートの后接構造の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the structure in which an end shield and a support that constitute a filament support are connected to each other.
従来のフィラメント支持体の構造としては一般的に第１
図にしめすように溶接でエンドシールドとサポートを接
続している。The structure of conventional filament supports is generally
The end shield and support are connected by welding as shown in the figure.
第１図においてエンドシールド１とサポート２を抵抗溶
接、アーク溶接等の方法で接合する。In FIG. 1, an end shield 1 and a support 2 are joined by resistance welding, arc welding, or the like.
しかしフィラメントサポートとしての機能上、マグネト
ロンの組立中や、電子レンジの動作中高温にさらされる
（エンドシールドで１０００℃以上となる）。However, due to its function as a filament support, it is exposed to high temperatures during magnetron assembly and microwave oven operation (over 1000°C at the end shield).
また構造上、エンドシールドとサポートの溶接点に機械
的なストレスが集中する。Additionally, due to the structure, mechanical stress is concentrated at the welding points between the end shield and the support.
このような熱衝撃、機械的衝撃に耐える。Withstands such thermal shock and mechanical shock.
劣化のない信頼性の高い接合が要求される。Highly reliable bonding without deterioration is required.
このため的接点近辺を後で補強する方法がとられる。For this reason, a method is used to later reinforce the area around the target point.
補強方法としては補強しようとするもの（例えばＰ ｔ
ｙ Ｒｕ Ｍｏ等）をペースト状に塗布したり、又は
ワッシャをつけこれを誘導加熱等の方法で溶接コブの上
およびエンドシールド１の周辺に溶着し補強層３をする
。As a reinforcement method, the material to be reinforced (for example, P t
A reinforcing layer 3 is formed by applying a paste (RuMo, etc.) or by attaching a washer and welding it to the top of the weld bump and around the end shield 1 using a method such as induction heating.
このようにして補強したものは一応の強度信頼性が得ら
れるものの、補強材が高価であるにもかかわらず、溶融
して不要部へついてしまったり、また工程も溶接、補強
物塗布、乾燥、溶融加熱といった煩雑になり、特に、溶
融加熱はＰ ｔｙ Ｒｕ−Ｍｏ等が高融点（Ｐｔで１８
００°ＣｔＲｕ−Ｍ。Products reinforced in this way have a certain degree of strength reliability, but even though the reinforcing material is expensive, it may melt and stick to unnecessary parts, and the process requires welding, applying reinforcement, drying, etc. The process of melting and heating becomes complicated, especially when Pty Ru-Mo etc. has a high melting point (Pt has a high melting point of 18
00°CtRu-M.
で１９４０℃以上）なのでくれに要するエネルギーの量
や、さらには生産性を向上しようとすると装置が大がか
りになる等、コスト高となることはいなめない。(1,940°C or higher) Therefore, it cannot be ignored that the amount of energy required for the process and furthermore, that the equipment will be large-scale if productivity is to be improved, resulting in high costs.
本発明はこれらの作業数上、および強度上の問題点を解
決しかつ安価なフィラメント支持体を提供するものであ
る。The present invention solves these problems in terms of the number of operations and strength, and provides an inexpensive filament support.
以下図面を参照してその実施例を説明する。Examples thereof will be described below with reference to the drawings.
第２図はサポート形状４を示し、第３図はエンドシール
ド５と接合したフィラメント支持体完成図を示す。FIG. 2 shows the support shape 4, and FIG. 3 shows a completed filament support joined to the end shield 5.
すなわち、サポート４の接合しようとする面を第２図の
ように加工しへこみをつける。That is, the surface of the support 4 to be joined is processed to form a dent as shown in FIG.
この場合、第２図に示すエッチ４′の部分はできるだけ
尖鋭にしたエッヂが理想的である。In this case, it is ideal that the etch 4' shown in FIG. 2 has an edge as sharp as possible.
このへこみ部分Ｒｕ−Ｍ ｏ 粉末を有機バインダーで
ペースト状にしたものを塗布し、乾燥して有機バインダ
ーを飛ばし位置がずれない接着の程度に仮に固定する。A paste made of Ru-Mo powder with an organic binder is applied to the recessed portion, and the organic binder is removed by drying, and the adhesive is temporarily fixed to such a degree that the position does not shift.
このようにして準備したサポートをエンドシールドに接
合させる。The support thus prepared is joined to the end shield.
例えば抵抗溶接すると周辺の凸部がまず溶けて変形しな
がら、さらに中のＲｕＭｏが溶は加圧により接合面に拡
散層６を作りながら最終的にはほぼ平らになり接合を完
了する。For example, when resistance welding is performed, the surrounding convex portion first melts and deforms, and then the RuMo inside melts and forms a diffusion layer 6 on the joint surface due to pressure, eventually becoming almost flat and completing the joint.
かりにこの凹部分を設けないで単に接合部にＲｕＭｏペ
ーストを塗って乾燥し溶接しても拡散する前に横にはみ
出したり飛散してしまい、かんじんの圧接面に残らず、
溶接強度がさがり、不安定なものとなる。Even if you simply apply RuMo paste to the joint without providing this concave part, dry it, and weld it, it will stick out or scatter to the side before it spreads, and it will not remain on the pressure welding surface of the paste.
The weld strength decreases and becomes unstable.
また抵抗溶接でなくプラズマ溶接により行なう場合も加
圧しながら回転して溶接することにより抵抗溶接と同じ
効果が得られる。Also, when performing plasma welding instead of resistance welding, the same effect as resistance welding can be obtained by rotating and welding while applying pressure.
このようにして加工したフィラメント支持体は加工工数
的にサポートのザグリ加工があるものの、従来方法に比
べ、１回の溶接ですみ、安価になることと、溶接された
ものの強度は例えば従来法と比較すると表１に示すよう
に溶接後Ｒｕ−Ｍｏ補強したもの以上の強度と、信頼性
が得られる。Although the filament support processed in this way requires countersinking of the support in terms of processing time, compared to conventional methods, it only requires one welding, making it cheaper, and the strength of the welded material is lower than that of conventional methods, for example. Comparatively, as shown in Table 1, the strength and reliability are greater than those reinforced with Ru-Mo after welding.
なお、表１は組立後エンドシールドを押え、サポートの
先端をもって曲げトルクテストを行った時の破断強度を
示している。Table 1 shows the breaking strength when the end shield was held down after assembly and a bending torque test was performed using the tip of the support.
第１図は従来の溶接後補強したものの断面形状を示す図
、第２図は本発明のポイントとなるサポートの加工部分
の断面形状を示す図、第３図は本発明の溶接後の断面形
状を示す図である。
１・・・エンドシールド、２・・・サポート、３・・・
補強層、４・・・サポート、５・・・エンドシールド、
６・・・拡散層。Figure 1 is a diagram showing the cross-sectional shape of a conventional reinforced product after welding, Figure 2 is a diagram showing the cross-sectional shape of the processed part of the support, which is the key point of the present invention, and Figure 3 is the cross-sectional shape after welding of the present invention. FIG. 1... End shield, 2... Support, 3...
Reinforcement layer, 4... Support, 5... End shield,
6... Diffusion layer.
Claims (1)
持するサポートの接続において、サポート側の接続しよ
うとする面をへこませ、そのへこませた中および周辺に
接続後の接着強度を強固にすることを目的とした金属を
、粉末ペースト状にして塗布し、乾燥後前記エンドシー
ルドと前記サポートの当接部分を加圧してこれを爵接し
、エンドシールドとサポートをこの金属を介して合金層
を形成し接合したフィラメント支持体の製造方法。1. When connecting the end shield that fixes the filament to the support that supports it, the surface to be connected on the support side is indented, and the adhesive strength after connection is strengthened in and around the indentation. The desired metal is applied in the form of a powder paste, and after drying, pressure is applied to the abutting portions of the end shield and the support to bring them into contact, forming an alloy layer between the end shield and the support via the metal. Method of manufacturing a bonded filament support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51156483A JPS5935495B2 (en) | 1976-12-27 | 1976-12-27 | Method for manufacturing filament support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP51156483A JPS5935495B2 (en) | 1976-12-27 | 1976-12-27 | Method for manufacturing filament support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5380957A JPS5380957A (en) | 1978-07-17 |
| JPS5935495B2 true JPS5935495B2 (en) | 1984-08-29 |
Family
ID=15628735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51156483A Expired JPS5935495B2 (en) | 1976-12-27 | 1976-12-27 | Method for manufacturing filament support |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5935495B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56106335A (en) * | 1980-01-25 | 1981-08-24 | Hitachi Ltd | Electron tube cathode structure |
| JPH0815047B2 (en) * | 1985-09-06 | 1996-02-14 | 株式会社日立製作所 | Magnetron manufacturing method |
| JPS62184655U (en) * | 1986-12-25 | 1987-11-24 |
-
1976
- 1976-12-27 JP JP51156483A patent/JPS5935495B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5380957A (en) | 1978-07-17 |
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