JPS5836811B2 - How to regenerate a cathode ray tube - Google Patents
How to regenerate a cathode ray tubeInfo
- Publication number
- JPS5836811B2 JPS5836811B2 JP52150854A JP15085477A JPS5836811B2 JP S5836811 B2 JPS5836811 B2 JP S5836811B2 JP 52150854 A JP52150854 A JP 52150854A JP 15085477 A JP15085477 A JP 15085477A JP S5836811 B2 JPS5836811 B2 JP S5836811B2
- Authority
- JP
- Japan
- Prior art keywords
- tube
- cathode ray
- ray tube
- neck
- electron gun
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
Description
【発明の詳細な説明】
本発明は陰極線管の再生方法、特に陰極線管の製造過程
で発生した不良管の再生方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for remanufacturing cathode ray tubes, and more particularly to a method for remanufacturing defective tubes generated during the manufacturing process of cathode ray tubes.
一般に、陰極線管の製造過程で発生した不良管のうち、
電子銃を封入した後の工程で電子銃あるいはネック部等
に不良が発生し、それ以外の部分が良品の場合には、陰
極線管を構成する材料費が比較的高価なため、陰極線管
全体を廃棄するのは不経済であり、通常ネック部の所定
部分を切断して電子銃またはネック管を取り換えること
が行なわれている。In general, among the defective tubes that occur during the manufacturing process of cathode ray tubes,
If a defect occurs in the electron gun or the neck part during the process after the electron gun is sealed, but the other parts are good, the entire cathode ray tube will have to be replaced because the materials that make up the cathode ray tube are relatively expensive. It is uneconomical to dispose of the electron gun or neck tube, and the electron gun or neck tube is usually replaced by cutting off a predetermined portion of the neck.
すなわち、第１図にその要部断面図で示したように陰極
線管の管体１は、その内面に螢光膜２を塗布した後アル
ミニウム膜３を蒸着したパネル部１ａと、その内面に導
通ダツクを塗布したファンネル部１ｂと、電子銃４を収
納したネック部１ｃとをそれぞれ封着合体させて管内を
排気した後にネツクゲツタ−５およびファンネルゲツタ
−６を飛ばして高真空度にさせて構成されている。That is, as shown in the cross-sectional view of the main part in FIG. 1, the tube body 1 of the cathode ray tube is electrically connected to the panel section 1a on which a fluorescent film 2 is coated on the inner surface and then an aluminum film 3 is vapor-deposited thereon. The funnel part 1b coated with a duct and the neck part 1c housing the electron gun 4 are sealed together, the inside of the tube is evacuated, and then the neck getter 5 and the funnel getter 6 are removed to create a high degree of vacuum. has been done.
しかしながら、上記製造過程においては、ネック部１ｃ
またはネック部１ｃに収納された電子銃４に不良が発生
し、パネル部１ａの螢光膜２およびファンネル部１ｂが
まだ十分に使用できる場合には、第２図、第３図で示し
たようにネック部１ｃの所定部分に熱ショックを与えて
環状のクラツク１を発生させ、ガラス微粉が管内に吸着
されないようにスローリークにより管内を一定圧力まで
減圧させる。However, in the above manufacturing process, the neck portion 1c
Or, if a defect occurs in the electron gun 4 housed in the neck part 1c and the fluorescent film 2 of the panel part 1a and the funnel part 1b can still be used sufficiently, as shown in FIGS. 2 and 3, A thermal shock is then applied to a predetermined portion of the neck portion 1c to generate an annular crack 1, and the inside of the tube is depressurized to a constant pressure by a slow leak so that fine glass powder is not adsorbed inside the tube.
次いで、ガン抜き装置８を用いてネック部１０周辺を真
空にし、ネック部１ｃ先端に重りを付けるかまたは管体
１にショックを与えて電子銃４を装着したネック管を落
下させた後、ガン抜き装置８のコツク８ａを切り換え、
管内に清浄な空気を徐々に導入させて大気圧に戻し、電
子銃４を装着したネック管を抜去する。Next, the area around the neck part 10 is evacuated using the gun extraction device 8, and the neck tube with the electron gun 4 attached thereto is dropped by applying a weight to the tip of the neck part 1c or by applying a shock to the tube body 1, and then the gun is removed. Switch the cutter 8a of the extraction device 8,
Clean air is gradually introduced into the tube to return it to atmospheric pressure, and the neck tube equipped with the electron gun 4 is removed.
次いで第３図に示したように管体１内に洗浄ノズル９を
挿入し、管体１を矢印方向に回転させてファンネル部１
ｂおよびネック部１ｃ内面に付着しているゲツター膜あ
るいはガラス微粉等の塵埃を洗浄液を用いて洗い流した
後、新しいネック管を接合して電子銃４封入前のバルブ
形状に形成して通常の製造過程を経て製品化される。Next, as shown in FIG. 3, insert the cleaning nozzle 9 into the tube 1, rotate the tube 1 in the direction of the arrow, and remove the funnel part
After washing away the getter film or dust such as glass powder adhering to the inner surfaces of the neck part b and the neck part 1c using a cleaning liquid, a new neck pipe is joined and formed into the shape of the bulb before the electron gun 4 is enclosed, and then the normal manufacturing process is carried out. The product is made into a product through a process.
しかしながら、上記再生方法によると、管内洗浄時に管
内湿度が増大し、あるときは露結するため、螢光面側に
わずかに残っているゲツター膜が水和化物となり、これ
が螢光膜２またはアルミニウム膜３と反応し、完威管と
なった後に５０〜２００時間のわずかなヒートランによ
って画面上ｉｔ ＩＪング状の螢光面ムラを発生させる
確率が極めて高かった。However, according to the above-mentioned regeneration method, the humidity inside the tube increases during tube cleaning, and dew condensation occurs in some cases, so the getter film slightly remaining on the fluorescent surface side becomes a hydrate, and this becomes the fluorescent film 2 or the aluminum. After reacting with the film 3 and forming a complete tube, there was an extremely high probability that a slight heat run for 50 to 200 hours would cause unevenness in the fluorescing surface on the screen.
このために完成管となってからの良否判定に長時間を要
するとともに、その再生効率が極めて悪いという欠点を
有していた。For this reason, it takes a long time to determine the quality of a completed pipe, and the regeneration efficiency is extremely low.
このような欠点を解決しようとしたものとしては、ネッ
ク部１ｃに局部的にクラツクを発生させ、スローリーク
させる際、管内に不活性ガスを強制的に導入し、ゲツタ
ーの変質を防止させ、ゲツター膜をそのままの状態で残
しておく方法、あるい＆１ブラシ等を用いて管内を擦り
つけ、ゲツター膜を除去する方法あるいはガラス微粉が
管内に導入されないことは勿論だが管内のゲツター膜お
よび導通ダツクが剥離しないようにレーザービームを照
射してネック部１ｃに小孔を設けて管内を除々に大気圧
に戻す方法等が提案されている。In an attempt to solve these drawbacks, a crack is generated locally in the neck portion 1c, and an inert gas is forcibly introduced into the tube to prevent the getter from deteriorating when causing a slow leak. There is a method of leaving the film as it is, or a method of removing the getter film by rubbing the inside of the tube with an &1 brush, etc.It goes without saying that fine glass powder will not be introduced into the pipe, but the getter film and conductive duct inside the pipe will be removed. A method has been proposed in which the inside of the tube is gradually returned to atmospheric pressure by irradiating the tube with a laser beam and making a small hole in the neck portion 1c to prevent the tube from peeling off.
しかしながら、このような再生方法によれば、上記欠点
を解決することができるが、いずれも作業の煩雑さ、製
品のバラツキ、耐電圧の劣化または目詰り不良の発生等
の問題点を有し、極めて良好な再生方法ではなかった。However, although these recycling methods can solve the above-mentioned drawbacks, they all have problems such as the complexity of work, product variations, deterioration of withstand voltage, and occurrence of clogging defects. It was not a very good reproduction method.
したがって、本発明の目的は上記の欠点を除去し、信頼
性および生起性を向上させた陰極線管の再生方法を提供
することにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for regenerating a cathode ray tube that eliminates the above-mentioned drawbacks and improves reliability and ease of operation.
このような目的を達戊するために本発明による陰極線管
の再生方法は、管内洗浄時にパネルフェース面を加熱さ
せるようにしたものである。In order to achieve such an object, the cathode ray tube regeneration method according to the present invention heats the panel face surface when cleaning the inside of the tube.
以下図面を用いて本発明による陰極線管の再生方法につ
いて詳細に説明する。The method for regenerating a cathode ray tube according to the present invention will be described in detail below with reference to the drawings.
第４図、第５図は本発明による陰極線管の再生方法の一
例を示す説明図である。FIGS. 4 and 5 are explanatory diagrams showing an example of the method for regenerating a cathode ray tube according to the present invention.
同図において、再生すべき陰極線管は、そのネック部１
ｃの所定部分に熱ショックを与え、同図に点線で示した
ように環状のクラツク７を発生させ、スローリークによ
り管内を一定真空度まで減圧させた後、ガン抜き装置８
にセットする。In the figure, the cathode ray tube to be regenerated has its neck 1
A heat shock is applied to a predetermined part of the tube c to generate an annular crack 7 as shown by the dotted line in the figure, and after reducing the pressure inside the tube to a certain degree of vacuum by a slow leak, the gun removal device 8
Set to .
このときにパネル部１ａフェース面を加熱するヒータ１
０をパネル部１ａ上面に同時にセットし、フェース面の
加熱を行なって電子銃４を装着したネック管を抜去した
後、前記パネル１ａフェース面の温度が６５〜９５℃の
範囲となるようにヒータ１０を調節する。At this time, the heater 1 that heats the face surface of the panel portion 1a
0 at the same time on the upper surface of the panel portion 1a, the face surface is heated, and the neck tube with the electron gun 4 attached is removed.Then, the heater is heated so that the temperature of the face surface of the panel 1a is in the range of 65 to 95 degrees Celsius. Adjust 10.
次いで、第５図に示したように管体１内に洗浄ノズル９
を挿入し、管体１を矢印方向に回転させて洗浄液にて管
内を洗浄する。Next, as shown in FIG. 5, a cleaning nozzle 9 is inserted into the tube body 1.
, and rotate the tube body 1 in the direction of the arrow to clean the inside of the tube with cleaning liquid.
この場合、フェース面温度が６５〜９５℃の範囲以下と
ならないようにフェース面の加熱温度を再調整する。In this case, the heating temperature of the face is readjusted so that the face temperature does not fall below the range of 65 to 95°C.
しかる後、同径の新しいネック管を接合して電子銃４の
封入前のバルブ形状に形成して通常の製造過程を経て完
戒管として形成される。Thereafter, a new neck tube of the same diameter is joined and formed into the shape of the valve before the electron gun 4 is enclosed, and a complete tube is formed through the normal manufacturing process.
このような再生方法によれば、上記フェース面の加熱を
行なうことによって管内洗浄時に水分が蒸発してもフェ
ース面が加熱されているため、この蒸気がパネル部１ａ
の内面に露結するのを防止するとともに、管内の相対湿
度を低下させ、螢光面側に残っているゲツター膜と螢光
膜２またはアルミニウム膜３との腐触反応を防止させる
ことができた。According to such a regeneration method, by heating the face surface, even if water evaporates during cleaning inside the pipe, the face surface is heated, so that this steam is transferred to the panel portion 1a.
It is possible to prevent dew condensation from forming on the inner surface of the tube, reduce the relative humidity inside the tube, and prevent corrosive reaction between the getter film remaining on the fluorescent surface side and the fluorescent film 2 or the aluminum film 3. Ta.
この結果、画面上に映出されるリング状の螢光面ムラを
発生しない良好な陰極線管を効率良く形成することがで
きた。As a result, it was possible to efficiently form a good cathode ray tube that does not cause ring-shaped fluorochrome unevenness projected on the screen.
なお、上記実施例に用いた洗浄水は純水または薄い弱酸
水溶液（例えば０．５〜２％酢酸水溶液）が好ましいが
、特に規定するものではない。Note that the washing water used in the above examples is preferably pure water or a dilute aqueous weak acid solution (eg, 0.5 to 2% acetic acid aqueous solution), but is not particularly limited.
また、上記実施例においてはフェース面の加熱温度を６
５〜９５℃の範囲とした場合について説明したが、本発
明はこれに限定されるものではなく、その温度が５０〜
１１０℃の範囲であれば前述と同様の効果が得られる。In addition, in the above embodiment, the heating temperature of the face surface was set to 6
Although the case where the temperature is in the range of 5 to 95°C has been described, the present invention is not limited to this, and the temperature is in the range of 50 to 95°C.
If the temperature is within the range of 110°C, the same effects as described above can be obtained.
この場合、加熱温度が低くすぎるとその加熱効果が失な
われ、また逆に高すぎると、パネル部とファンネル部と
の封着部にクラツクが発生し、管体が破壊されることに
なる。In this case, if the heating temperature is too low, the heating effect will be lost, and if the heating temperature is too high, cracks will occur in the sealing area between the panel part and the funnel part, and the tube will be destroyed.
さらに、上記実施例においては、電子銃抜去後にフェー
ス面を加熱させた場合について説明したが、本発明はこ
れに限定されるものではなく、管内洗浄時に加熱されて
いれば良く、それ以前の工程で加熱を開始しても前述と
全く同様の効果が得られる。Further, in the above embodiment, a case was explained in which the face surface was heated after the electron gun was removed, but the present invention is not limited to this, and it is sufficient that the face surface is heated during cleaning the inside of the tube, and the face surface is heated during the process before that. Even if heating is started at , exactly the same effect as described above can be obtained.
以上説明したように本発明による陰極線管の再生方法に
よれば、管内に残留して弊害となり得るゲツター膜を必
要最大限に除去することができるとともに、エアーリー
ク時に管内に吸着されて残留するガラス微粉、導通ダツ
クの剥離した粉末およびその他の塵埃等も同時に除去で
き、しかも再生に要する時間は従来法とほとんど変らず
、耐電圧特性を向上させ、目詰まりゴミ不良の発生が少
ない陰極線管の再生を行なうことができる。As explained above, according to the method for regenerating a cathode ray tube according to the present invention, it is possible to remove to the maximum necessary extent the getter film that may remain inside the tube and cause harmful effects, and also remove the getter film that remains inside the tube when air leaks. Fine powder, peeled powder from conductive ducts, and other dust can be removed at the same time.Moreover, the time required for regeneration is almost the same as with conventional methods, and the withstand voltage characteristics are improved and cathode ray tube regeneration reduces the occurrence of clogging and dust defects. can be done.
したがって、信頼性および生産性を向上させる極めて優
れた効果が得られる。Therefore, an extremely excellent effect of improving reliability and productivity can be obtained.
第１図は陰極線管の一例を示す要部断面図、第２図、第
３図は従来の再生方法の一例を説明するための再生装置
の要部説明図、第４図、第５図は本発明による陰極線管
の再生方法の一例を説明するための再生装置の要部説明
図である。
１・・・・・・管体、１ａ・・・・・・パネル部、１ｂ
・・・・・・ファンネル部、１ｃ・・・・・・ネック部
、２・・・・・・螢光膜、３・・・・・・アルミニウム
膜、４・・・・・・電子銃、５・・・・・・ネツクゲツ
ター、６・・・・・・ファンネルゲツタ− ７・・・・
・・クラツク、８・・・・・・ガン抜き装置、８ａ・・
・・・・コック、９・・・・・・洗浄ノズル、１０・・
・・・・ヒータ。Fig. 1 is a sectional view of the main part showing an example of a cathode ray tube, Figs. 2 and 3 are explanatory diagrams of the main part of a reproducing device for explaining an example of a conventional reproducing method, and Figs. 4 and 5 are FIG. 2 is an explanatory diagram of a main part of a reproducing device for explaining an example of a method for reproducing a cathode ray tube according to the present invention. 1...Pipe body, 1a...Panel part, 1b
... Funnel part, 1c ... Neck part, 2 ... Fluorescent film, 3 ... Aluminum film, 4 ... Electron gun, 5...Neck getter, 6...Funnel getter 7...
...Crack, 8...Gun removal device, 8a...
...cock, 9...washing nozzle, 10...
····heater.
Claims (1)
クにより管内を大気圧に戻して封入された電子銃を抜去
する工程と、前記陰極線管パネルフェース面を加熱する
工程と、前記陰極線管内を洗浄液を用いて洗浄する工程
と、ネック管を新たに接合する工程と具備したことを特
徴とする陰極線管の再生方法。 ２ パネルフェースの加熱温度を５０〜１１０℃の範囲
としたことを特徴とする特許請求の範囲第１項記載の陰
極線管の再生方法。[Scope of Claims] 1. A step of locally destroying the neck portion of the cathode ray tube to return the tube interior to atmospheric pressure by slow leakage and removing the enclosed electron gun, and a step of heating the cathode ray tube panel face surface. A method for regenerating a cathode ray tube, comprising the steps of: cleaning the inside of the cathode ray tube with a cleaning solution; and newly joining a neck tube. 2. The method for regenerating a cathode ray tube according to claim 1, wherein the heating temperature of the panel face is set in a range of 50 to 110°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52150854A JPS5836811B2 (en) | 1977-12-14 | 1977-12-14 | How to regenerate a cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52150854A JPS5836811B2 (en) | 1977-12-14 | 1977-12-14 | How to regenerate a cathode ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5482963A JPS5482963A (en) | 1979-07-02 |
| JPS5836811B2 true JPS5836811B2 (en) | 1983-08-11 |
Family
ID=15505816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52150854A Expired JPS5836811B2 (en) | 1977-12-14 | 1977-12-14 | How to regenerate a cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5836811B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61143416U (en) * | 1985-02-25 | 1986-09-04 |
-
1977
- 1977-12-14 JP JP52150854A patent/JPS5836811B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61143416U (en) * | 1985-02-25 | 1986-09-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5482963A (en) | 1979-07-02 |
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