JPS5816435A - Manufacture of cathode - Google Patents
Manufacture of cathodeInfo
- Publication number
- JPS5816435A JPS5816435A JP56114452A JP11445281A JPS5816435A JP S5816435 A JPS5816435 A JP S5816435A JP 56114452 A JP56114452 A JP 56114452A JP 11445281 A JP11445281 A JP 11445281A JP S5816435 A JPS5816435 A JP S5816435A
- Authority
- JP
- Japan
- Prior art keywords
- cathode
- inner sleeve
- fixed
- outer sleeve
- sleeve
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/13—Solid thermionic cathodes
- H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
- Solid Thermionic Cathode (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は陰極の製造方法に係り、特に連動形の傍熱型陰
極の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a cathode, and more particularly to a method for manufacturing an interlocking indirectly heated cathode.
陰極線管などに用いられる傍熱型陰極は図に示すように
電子放射物質（１）が載置される還元性元素を含むニッ
ケルからなる基体金属（２）と、この基体金属（２）が
溶接固着されるニッケル等からなるアウタスリーブ（３
）と、このアウタスリーブ（３）に内接して溶接固着さ
れるニッケルークロム合金等からなるインナスリーブ（
４）と、このインナスリーブ（４）の下方他端部に溶接
固着される複数個の陽極支持子（５）と、この陰極支持
子（５）を介して基体金属（２）、アウタスリーブ（３
）、インナスリーブ（４）を懸垂す゛るように溶接固着
される陰極支持筒（６）から構成され、インナスリーブ
（４）内にヒータを挿入し、このヒータにより基体金属
（２）を加熱し、電子放射物質（１）から熱電子を放出
するようＫなっている。As shown in the figure, an indirectly heated cathode used in cathode ray tubes, etc. is made by welding a base metal (2) made of nickel containing a reducing element on which an electron emitting material (1) is placed. An outer sleeve (3
), and an inner sleeve ( made of nickel-chromium alloy etc.) which is inscribed in this outer sleeve (3) and fixed by welding.
4), a plurality of anode supports (5) welded and fixed to the other lower end of this inner sleeve (4), and a base metal (2) and an outer sleeve (2) via this cathode support (5). 3
), consisting of a cathode support cylinder (6) fixed by welding so as to suspend an inner sleeve (4), a heater is inserted into the inner sleeve (4), and the base metal (2) is heated by this heater, The electron emitting substance (1) is set to emit thermoelectrons.
この様な構造を有する傍熱型陰極は通常インナスリーブ
（４）の表面に暗峰色の酸化被膜（４１が形成されてお
り、ヒータからの入力により極めて短時間に基体金属（
２）を加熱し、電子放射物質から所定量の熱電子を放出
することが可能な省電力形の連動形陰極である。Indirectly heated cathodes with such a structure usually have a dark-colored oxide film (41) formed on the surface of the inner sleeve (4), and the base metal (41) is formed in a very short time by input from the heater.
2) is a power-saving interlocking cathode that can emit a predetermined amount of thermoelectrons from an electron emitting substance.
更に説明すれば、インナスリーブ（４）の表面Ｋｉｌｌ
化被膜を形成するととＫより熱放射率を増大させヒータ
からの熱吸収を良くすると共に定常動作時における放射
エネルギーを増大させ、このエネルギーに見合うヒータ
の入力を増大させる事により連動性を向上させるもので
ある。−万アウタスリーブ（３）は放射熱断熱筒であり
金属光沢を有しており、熱放射率は低いので、定常動作
時における放射エネルギーは低減され、このエネルギー
に見合うヒータの入力を減少させ省電力化をはかるもの
である。この相反する２つの作用を組合せ連動性と省電
力性を兼ねそなえたものＫしている。To explain further, the surface of the inner sleeve (4)
Forming a chemical coating increases thermal emissivity and improves heat absorption from the heater, and increases radiant energy during steady operation, increasing the input of the heater commensurate with this energy, thereby improving interlocking performance. It is something. - The outer sleeve (3) is a radiant heat insulating tube with a metallic luster and low thermal emissivity, so the radiant energy during steady operation is reduced and the heater input corresponding to this energy is reduced and saved. This is aimed at electrification. By combining these two contradictory effects, we have created a device that has both interlocking performance and power saving performance.
ところで、この様なインナスリーブ（４）の酸化被膜（
４ａ）Ｉｔ■潤水素炉中で加熱するととくより簡単Ｋｍ
成す１事ができるが、形成された酸化被膜（４ａＮｔ極
めて高抵抗であり、インナスリーブ（４）ｋ酸化被ｊｌ
（４ａ）ｔ−形成した後に陰極支持子（５）を抵抗溶接
により固着する事は極めてｍｓである。By the way, the oxide film (
4a) It's especially easier to heat in a hydrogen furnace.
However, the formed oxide film (4aNt has extremely high resistance, and the inner sleeve (4)k oxide film
(4a) It takes a very long time to fix the cathode support (5) by resistance welding after T-forming.
このため、従来はインナスリーブ（４）Ｋ陰極支持子（
５）を抵抗溶接により固着させた後、酸化処理を行ない
インナスリーブ（４）表面に酸化被膜を形成する方法が
採られていた。For this reason, conventionally the inner sleeve (4) K cathode supporter (
5) was fixed by resistance welding and then subjected to oxidation treatment to form an oxide film on the surface of the inner sleeve (4).
一方基体金属（２）は高温の酸化性雰囲気にさらされる
と、基体金属（２）中に含まれる還元性元素が酸化し電
子放射能が劣化するために、陰極支持子（２）が一端Ｋ
１１着されたインナスリーブ（４）の表面Ｋ１１ｌ化被
膜（４０を形成した後に適当な方法でインナスリーブ（
４）とアウタスリーブ（３）を固着一体化する方法がと
られている。On the other hand, when the base metal (2) is exposed to a high-temperature oxidizing atmosphere, the reducing elements contained in the base metal (2) are oxidized and the electron radioactivity deteriorates, so that the cathode support (2) is exposed to K.
After forming the K11 coating (40) on the surface of the inner sleeve (4), the inner sleeve (4)
4) and the outer sleeve (3) are fixed and integrated.
しかし、前述した従来の製造方法によると、自動化され
た量産ラインではなはだ不部会な点が出てくる。つまり
酸化被膜（４０の形成されたインナスリーブ（４の一端
部には複数の陰極支持子（５）が固着されており、仁の
ような部品は自動供給装置を通す時にこれら１極支持子
（５）同志がからみ会い自動倶゛給が停止すると言う欠
点があった。However, according to the conventional manufacturing method described above, there are many disadvantages in automated mass production lines. In other words, a plurality of cathode supports (5) are fixed to one end of the inner sleeve (4) on which an oxide film (40) is formed, and when a part such as a grain is passed through an automatic feeder, these single pole supports ( 5) There was a drawback that automatic replenishment would stop if comrades got entangled.
本実−は前述した従来の陰極の製造方法の諸欠点に鑑み
なされたものであり自動化された貴意ラインでも陰極支
持子（四同志がからみ会うむとなく順調に組立てること
が可能であり、−極支持子（２）同志のからみ合いによ
って発生する陰極としてのＴ〕＼
形状不良、特性不良を防止することが可能な陰極の製造
方法を提供することを目的としている。The present invention was developed in view of the drawbacks of the conventional cathode manufacturing method mentioned above, and it is possible to assemble the cathode supporter smoothly even on an automated production line without the need for the four comrades to get tangled. The purpose of the present invention is to provide a method for manufacturing a cathode that can prevent shape defects and characteristic defects.
即ち、本発明の陰極の製造方法の要点は酸化被膜が形成
されたインナースリーブと基体金属及びアウタスリーブ
とを固着一体化した後にインナスリーブの下方他端部に
複数の陰極支持子を固着させる連動１ｍ論一極製造方法
に関するものである。That is, the main point of the cathode manufacturing method of the present invention is to fix and integrate the inner sleeve on which the oxide film is formed, the base metal, and the outer sleeve, and then fix a plurality of cathode supports to the lower other end of the inner sleeve. This relates to a 1m theory monopolar manufacturing method.
次に１本発−の陰極の製造方法を詳細に説明する。Next, a method for manufacturing a single cathode will be explained in detail.
この場合、１ＩｋｌＫとしては図のものと同様なので同
一部分は同一符号を付してそのまま使用する。In this case, since 1IklK is the same as that shown in the figure, the same parts are given the same reference numerals and used as they are.
先ずインナスリーブ（４）を湿潤水嵩炉中で９００〜１
１００℃、５〜３０分の酸化処理を行ないインナスリー
ブ（４）の表面に酸化被膜Ｃ４ｍ＞’に形成する。First, the inner sleeve (4) was heated to 900 to 1
Oxidation treatment is performed at 100°C for 5 to 30 minutes to form an oxide film C4m>' on the surface of the inner sleeve (4).
また基体金属（２）をアウタスリーブ（３）の頂部に内
接さ昔Ｓ＊閣着する。Also, the base metal (2) is inscribed in the top of the outer sleeve (3) and is attached to the top of the outer sleeve (3).
次に基体金属（艶カ圃着されたアウタスリーブ（３）の
他端−款部から酸化被膜（４麿＞ｔ−形成したインナス
リーブ（４を挿入内接喜せレーず光■などにより溶接固
着す為。Next, insert the inner sleeve (4) formed with an oxide film (4 > t) from the other end of the base metal (outer sleeve (3) coated with a glossy surface) and weld with a laser beam, etc. To stick.
次にリボン状の陰極支持子（５）をインナスリーブ（４
）の下方他端部に配設し、レー、ザ光により溶接固着す
る。Next, attach the ribbon-shaped cathode support (5) to the inner sleeve (4).
) and welded and fixed with laser light.
このような工程からなる本発明の陰極の製造方法によれ
ば１極支持子（５）は最終工程で溶接するために途中工
程の酸化被膜（４ｍ）を形成したインナスリーブ（４と
、基体金属（５）を固着したアウタスリーブ龜）の組立
て工程における形状はいずれも円筒形であり、自動供給
が極めて容品となり、貴書性が優れ、また出来上った陰
極の品位も極めて良好であり、その工業的価値は極めて
大である。According to the method for producing a cathode of the present invention comprising such steps, the single pole supporter (5) is made of an inner sleeve (4) on which an oxide film (4 m) is formed in the middle of the process in order to be welded in the final process, and a base metal. The shape of the assembly process of (5) the outer sleeve bolt (to which the outer sleeve is fixed) is cylindrical, and the automatic feeding is extremely elegant, the readability is excellent, and the quality of the finished cathode is also extremely good. , its industrial value is extremely large.
ｔ ｍｓの簡単な説明
図は本発明の陰極の製造方法の適用される傍熱部陰極を
示す縦断間図である。A simple explanatory diagram of t ms is a longitudinal cross-sectional view showing an indirectly heated cathode to which the method for producing a cathode of the present invention is applied.
１・・・電子放射物質、 ２・・・基体金属３・・・ア
ウタスリーブ、４・、・インナスリーブ４ａ・・・酸化
被膜、 ５・・・陰極支持千尋・・・陰極支持筒、
Ｌ・・・レーザ光代理人 弁理士 井 上 −男DESCRIPTION OF SYMBOLS 1... Electron emitting material, 2... Base metal 3... Outer sleeve, 4... Inner sleeve 4a... Oxide film, 5... Cathode support chihiro... Cathode support cylinder,
L...Laser light agent Patent attorney Inoue - Male
Claims (1)
溶接固着されるアウタスリーブと、前記アウタスリーブ
に内接して溶接固着されるインナスリーブと、前記イン
ナスリーブの他端部に溶接固着される陰極支持子と、前
記陰極支持子の他端部が溶接固着される陰極支持筒とか
らなる陰極の製造方法に於て、前記インナスリーブを酸
化処理して表面に酸化被膜を形成する工程と、このイン
ナスリーブと前記アウタスリーブと前記基体金属を一体
化する工程と、前記酸化被膜を形成したインナスリーブ
の他端部に複数個の前記陰極支持子をレーザ光により溶
接固着する工程とを含むことを特徴とする陰極の製造方
法。A base metal on which an electron emitting material is placed, an outer sleeve to which the base metal is welded and fixed, an inner sleeve inscribed in and welded to the outer sleeve, and a welded and fixed to the other end of the inner sleeve. A method for manufacturing a cathode comprising a cathode supporter and a cathode support tube to which the other end of the cathode supporter is fixed by welding, the step of oxidizing the inner sleeve to form an oxide film on the surface. , a step of integrating the inner sleeve, the outer sleeve, and the base metal, and a step of welding and fixing the plurality of cathode supports to the other end of the inner sleeve on which the oxide film is formed by laser light. A method for producing a cathode, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56114452A JPS5816435A (en) | 1981-07-23 | 1981-07-23 | Manufacture of cathode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56114452A JPS5816435A (en) | 1981-07-23 | 1981-07-23 | Manufacture of cathode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5816435A true JPS5816435A (en) | 1983-01-31 |
Family
ID=14638077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56114452A Pending JPS5816435A (en) | 1981-07-23 | 1981-07-23 | Manufacture of cathode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816435A (en) |
-
1981
- 1981-07-23 JP JP56114452A patent/JPS5816435A/en active Pending
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