JPS62200638A - Reclamation method for color cathode-ray tube - Google Patents
Reclamation method for color cathode-ray tubeInfo
- Publication number
- JPS62200638A JPS62200638A JP61041292A JP4129286A JPS62200638A JP S62200638 A JPS62200638 A JP S62200638A JP 61041292 A JP61041292 A JP 61041292A JP 4129286 A JP4129286 A JP 4129286A JP S62200638 A JPS62200638 A JP S62200638A
- Authority
- JP
- Japan
- Prior art keywords
- panel
- funnel
- ray tube
- color cathode
- glass
- 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
- 238000000034 method Methods 0.000 title claims description 16
- 239000011521 glass Substances 0.000 claims abstract description 28
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- 229910017604 nitric acid Inorganic materials 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 26
- 238000007789 sealing Methods 0.000 abstract description 11
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000272525 Anas platyrhynchos Species 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 241000287227 Fringillidae Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
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]
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はカラー陰極線管の再生方法に関し、詳しくは
パネル部とファンネル部がフリットガラスを介して溶着
された状態の不良カラー陰極線管を再生する方法に関す
るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for recycling a color cathode ray tube, and more specifically, a method for recycling a defective color cathode ray tube in which a panel portion and a funnel portion are welded together via a frit glass. It is about the method.
一般に、カラー陰極線管の製造過程で不良管が発生した
場合、カラー陰極線管を構成する材料費が比較的高価な
ため、カラー陰極線管全体を廃棄するのは不経済であり
、主要構成部品であるパネル部、ファンネル部オよびシ
ャドウマスクを回収し再生することが行なわれている。Generally, if a defective tube occurs during the manufacturing process of a color cathode ray tube, it is uneconomical to discard the entire color cathode ray tube because the materials that make up the color cathode ray tube are relatively expensive, and the main components are Panel parts, funnel parts, and shadow masks are collected and recycled.
第３図はカラー陰極線管の要部切欠断面である。FIG. 3 is a cutaway cross-section of the main part of a color cathode ray tube.
カラー陰極線管（１）は、その内面のパネルピンに懸架
されたシャドウマスク（２）およびこれと対向する内面
に形成された蛍光膜（３）を備えたパネル部（１ａ）と
、電子銃／４）を収納したネック部（１ｂ）ならびに、
ネック部（１ｂ）の内面に導通ダックが塗布され、前記
シャドウマスクｒ２）のフレーム底辺に固定されて上記
電子銃（４）側に突出する内部磁気シールド（５）を備
えたファンネル部（ＩＣ）とから構成され、上記パネル
部（１ａ）とファンネル部（ＩＣ）は各シール面でフリ
ットガラス（６）を介して溶着されている。The color cathode ray tube (1) includes a panel section (1a) comprising a shadow mask (2) suspended from panel pins on its inner surface, a fluorescent film (3) formed on the inner surface opposite to this, and an electron gun/4. ) and the neck part (1b) that houses the
A funnel part (IC) having a conductive duck applied to the inner surface of the neck part (1b) and having an internal magnetic shield (5) fixed to the bottom side of the frame of the shadow mask r2) and protruding toward the electron gun (4). The panel portion (1a) and the funnel portion (IC) are welded together at each sealing surface via a frit glass (6).
このようなカラー陰極線管（１）の製造過程において種
々のトラブルが発生し、パネル部（１ａ）とファンネル
部（ＩＣ）とをフリットガラス（６）でｒ８ Ｊする工
程以降で不良管が発生した場合には、特開昭６０−９３
７８５号公報に記されているように、カラー？極線管（
１）のネック部（１ｂ）に小さなりラックを入れて真空
を除々に破壊したのち、約り０％硝酸ニテパネル部（ｌ
ａ）とファンネル部（ＩＣ）とを結合するフリットガラ
ス＋６）を一部Ｊａ解し、温・冷水によるヒートサイク
ルをかけてパネル部（ｌａ）とファンネル部（ＩＣ）と
を分５１シて内蔵されたシャドウマスク（２）を取り出
し、パネル部（１ａ）とファンネル部（ＩＣ）の残余の
フリットガラス（６）を除去するとともに、内面の蛍光
嘆（３）もしくは普通ダックを除去し、ファンネル＊
（ＩＣ）に新しくネック部（１ｂ）を継ぎ終えて回収・
再生を終了するようにしている。Various troubles occurred during the manufacturing process of such color cathode ray tubes (1), and defective tubes occurred after the process of attaching the panel part (1a) and funnel part (IC) with frit glass (6). In this case, JP-A-60-93
As stated in Publication No. 785, color? Polar ray tube (
After gradually breaking the vacuum by inserting a small rack into the neck part (1b) of 1), add approximately 0% nitric acid to the panel part (l).
Part of the frit glass +6) that connects a) and the funnel part (IC) is disassembled, and a heat cycle with hot and cold water is applied to separate the panel part (la) and funnel part (IC) for 51 minutes and built-in. Take out the shadow mask (2), remove the remaining frit glass (6) on the panel part (1a) and the funnel part (IC), remove the inner fluorescent layer (3) or normal duck, and remove the funnel *
After connecting the new neck part (1b) to (IC), collect it.
I am trying to end the playback.
しかしながら、前記フリットガラスを約１０％硝酸で一
部１′＠解したあとのヒートサイクルは一般に温・冷水
をカラー陰極線管のバルブ全体に流しかけ、その時に生
ずるガラスの膨張・収縮力により強度の弱いフリットガ
ラス部に一周するクラックを発生させ、パネル部とファ
ンネル部とを分離しているが、温・冷水の温度設定、バ
ルブへの流しかけ水量、流しかけ時間、バルブの大きさ
によるガラス内厚の差異矩形状バルブによる直線・コー
ナー差等々により上記ガラスの膨張・収縮力の加わり方
に差が生じ、結果としてシール面に欠けが生じたり、時
にはバルブ破壊が生じて再生率が悪く、良好な再生方法
ではなかった。However, the heat cycle after partially dissolving the frit glass with about 10% nitric acid is generally carried out by pouring hot or cold water over the entire bulb of the color cathode ray tube, and the strength is increased by the expansion and contraction forces of the glass that occur at that time. A crack is generated around the weak frit glass part, separating the panel part and the funnel part, but the temperature inside the glass depends on the temperature setting of hot/cold water, the amount of water poured into the bulb, the duration of pouring water, and the size of the bulb. Differences in thickness Due to differences in straight lines and corners due to rectangular bulbs, there are differences in the way the expansion and contraction forces are applied to the glass, resulting in chipping of the sealing surface and sometimes breaking of the bulb, resulting in poor regeneration rate. It wasn't a good way to play.
この発明は、上記従来の欠点を解消するためになされた
もので、シール面の欠けの発生が少なく、再生率の良好
なカラー陰極線管の再生方法を提供することを目的とし
ている。The present invention was made in order to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to provide a method for reproducing a color cathode ray tube, which reduces the occurrence of chipping of the sealing surface and has a good regeneration rate.
〔間１点を解決するための手段〕
この発明に係るカラー陰極線管の再生方法は、パネル部
もしくはファンネル部のいずれか一方のガラス温度をほ
ぼ一定に保ちながら、他方のガラスにヒートサイクルを
加えてフリットガラス部より分離するようにしたもので
ある。[Means for Solving Problem 1] The method for regenerating a color cathode ray tube according to the present invention is to maintain the glass temperature of either the panel portion or the funnel portion substantially constant while applying a heat cycle to the other glass. It is designed so that it can be separated from the frit glass part.
この発明においては、一方のガラス温度をほぼ一定に保
つようにしたため、ヒートサイクルにより生ずる膨張・
収縮力がパネル部もしくはファンネル部のいずれか一方
にだけ働くため、急激なショックが緩和され、均一なる
力でフリットガラス部より分離することができる。In this invention, since the temperature of one glass is kept almost constant, expansion and
Since the shrinkage force acts only on either the panel section or the funnel section, sudden shock is alleviated and the panel can be separated from the frit glass section with a uniform force.
以下、この発明の実施例を図面にしたがって説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図はこの発明の一実施例であるカラー陰極線管の再
生方法を示すものである。約１０％硝酸にてパネル部（
１ａ）とファンネル部（ＩＣ）を結合するフリットガラ
ス【６）の一部を溶解する。このフリットガラス（６）
の溶解は全体を均一に溶解することが好ましくその深さ
はバルブ側壁から１．０〜２．０鴎の範囲内が最適であ
る。FIG. 1 shows a method for reproducing a color cathode ray tube, which is an embodiment of the present invention. The panel part (
A part of the frit glass [6] that connects 1a) and the funnel part (IC) is melted. This frit glass (6)
It is preferable that the entire surface is uniformly dissolved, and its depth is optimally within the range of 1.0 to 2.0 mm from the side wall of the valve.
次いで第１図に示すようにパネル部（１ａ）の全体を覆
う断熱カバー（７）をパネルシール面からパネル部（１
ａ）側全体に被せ、ファンネル部（ＩＣ）側の上部に位
置するノズルＬ８）、 （８）よりヒートサイクル用の
水（９）をファンネル部（ＩＣ）の全体に順次流しかけ
る。Next, as shown in FIG.
Cover the entire funnel part (IC) side, and sequentially pour water (9) for heat cycle over the entire funnel part (IC) from nozzle L8) (8) located at the upper part of the funnel part (IC) side.
このと九１、断熱カバー（７）はパネルシール面を越え
てファンネル（ＩＣ）側シール面をも一部被せることが
好ましく、決してパネルｆｆ（ｌａ）（ＩＩにヒートサ
イクル用の水（９）がかからないようにすることである
。In this case, it is preferable that the heat insulating cover (7) goes beyond the panel sealing surface and partially covers the sealing surface on the funnel (IC) side. The goal is to prevent this from happening.
断熱カバー（７）の材質とすれば、ガラスに傷を発生さ
せず、ヒートサイクル用の水（９）のパネル部（１ａ）
側への熱伝導を妨げる適当な厚さをもったものであれば
何でもよく、−例として発泡ポリエチレン、合成ゴム等
を発明者等は使用したが、これに限定されるものではな
い。If the material of the heat insulation cover (7) is selected, it will not cause scratches on the glass, and the panel part (1a) of the water for heat cycle (9) can be used.
Any material may be used as long as it has a suitable thickness to prevent heat conduction to the sides; for example, the inventors have used foamed polyethylene, synthetic rubber, etc., but the invention is not limited thereto.
以上のようにしてヒートサイクルを実施して分離したパ
ネル部（１ａ）とファンネル部（ｌｃ）のシール面には
シール面欠けの発生は少なくなり、またヒートサイクル
途中でのバルブ破壊は皆無に近い状態となり、再生率は
飛躍的に向上した。特に、１９ないし２１インチ等の角
型カラー陰極線管、さらに２６インチ、２８インチ、３
フインチ等の大型カラー陰極線庁に対する再生効率は抜
群であることが証明された。As described above, the seal surfaces of the separated panel part (1a) and funnel part (lc) are less likely to be chipped, and there is almost no breakage of the valve during the heat cycle. The reproduction rate has improved dramatically. In particular, 19 to 21 inch rectangular color cathode ray tubes, 26 inch, 28 inch, 3 inch, etc.
It has been proven that the regeneration efficiency for large color cathode ray stations such as Finch is outstanding.
さらに、池の実施例としてフリットガラス＋６）の一部
溶解を終えたバルブを第２図に示すようにパネル部（１
ａ）側をそのシール面部が十分に浸るようにして水ｉ１
９４Ｉに沈め、前記実施例と同じようにノズル（８）よ
りヒートサイクル用の水（９）をファンネル部全体に順
次流しかけるようにしてもよい。水槽ａｔ）はヒートサ
イクル用の水１９）によるパネル部（１ａ）側の温度′
変化を防ぐため、多量で、かつ、循環調温させることが
望ましいう
なお、上記各実施例では、いずれもパネル部（１ａ）側
を下にして、パネル部（１ａ）側のガラス温度をほぼ一
定にしてファンネル部（ＩＣ）側よりヒートサイクル用
の水（９）を流しかける方法を挙げたが、これに限定さ
れるものではなく、ファンネル部（ＩＣ）側のガラス温
度をほぼ一定にして、パネル部（１ａ）側よりヒートサ
イクル用の水（９）を流しかける逆の方法でも良いこと
は勿論である。Furthermore, as an example of the pond, the panel part (1
a) side with water i1 so that its sealing surface is fully immersed.
94I, and heat cycle water (9) may be sequentially poured over the entire funnel portion from the nozzle (8) in the same manner as in the previous embodiment. The water tank at) is heated at the temperature of the panel part (1a) by water 19) for heat cycle.
In order to prevent changes, it is desirable to control the temperature in large quantities and through circulation.In each of the above embodiments, the panel section (1a) side is placed downward, and the glass temperature on the panel section (1a) side is approximately adjusted. Although we have mentioned the method of pouring water (9) for heat cycle from the funnel part (IC) side at a constant temperature, the method is not limited to this method. Of course, the reverse method of pouring water (9) for heat cycle from the panel portion (1a) side may also be used.
また、ヒートサイクル用の水（９）の温度については侍
に規定せず、発明者箋は２０ ”Ｏの冷水と５５°Ｃの
温水を用いて温水→冷水→温水の順に流しかけたが、こ
れをたとえば３５°Ｃの温水と７０″Ｃの温水の組合せ
にしてもよく、その組合せやその流しかけ順序は任意で
あることは勿論である。Furthermore, the temperature of the water (9) for the heat cycle was not specified by the Samurai, and the inventor used cold water at 20"O and hot water at 55°C, and poured the water in the order of hot water → cold water → hot water, For example, this may be a combination of hot water of 35°C and hot water of 70''C, and it goes without saying that the combination and the order in which the water is poured are arbitrary.
以上のように、この発明によれば、パネル部もしくはフ
ァンネル部のいずれか一方のガラス温度をほぼ一定に保
ち、他方のガラスに対してのみヒートサイクルを加える
ようにしたので、バルブ破壊発生がほとんどなくなり、
シール面の欠は等の発生が防止され、再生効率の良いカ
ラー陰極線管の再生方法を得ることができる効果がある
。As described above, according to the present invention, since the glass temperature of either the panel section or the funnel section is kept almost constant and a heat cycle is applied only to the other glass, the occurrence of bulb breakage is almost non-existent. gone,
This has the effect of preventing the occurrence of defects such as cracks on the sealing surface and providing a method for reproducing color cathode ray tubes with high regeneration efficiency.
第１図はこの発明に係るカラー陰極線管の再生方法の適
用例を示す陰極線管の側面図、第２図はこの発明の他の
実施例を示す陰極線管の側面図、第８図はカラー陰極線
管の要部切欠断面図である。
（１）・・・カラー陰極線管、（ｌａ）・・・パネル部
、（ＩＣ）・・・ファンネル部、（６）・・・フリット
ガラス、（９）・・・ヒートサイクル用の水。
なお、図中同一符号は同一もしくは相当部分を示す。FIG. 1 is a side view of a cathode ray tube showing an example of application of the method for regenerating a color cathode ray tube according to the present invention, FIG. 2 is a side view of a cathode ray tube showing another embodiment of the invention, and FIG. It is a notched sectional view of the main part of a pipe. (1)...Color cathode ray tube, (la)...Panel section, (IC)...Funnel section, (6)...Frit glass, (9)...Water for heat cycle. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
トガラスを硝酸溶液で一部溶解し、ヒートサイクルによ
り上記パネル部と上記フアンネル部とに分離解体して主
要構成部品を回収するカラー陰極線管の再生方法におい
て、上記パネル部もしくは上記フアンネル部のいずれか
一方のガラス温度をほぼ一定に保ちながら他方のガラス
にヒートサイクルを加えてフリットガラス部より分離す
ることを特徴とするカラー陰極線管の再生方法。(1) A color cathode ray tube in which the frit glass that welds the panel part and the funnel part is partially dissolved with a nitric acid solution, and the panel part and the funnel part are separated and dismantled by a heat cycle and the main components are recovered. A method for recycling a color cathode ray tube, characterized in that the glass temperature of either the panel section or the funnel section is kept approximately constant while the other glass is subjected to a heat cycle to separate it from the frit glass section. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61041292A JPS62200638A (en) | 1986-02-26 | 1986-02-26 | Reclamation method for color cathode-ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61041292A JPS62200638A (en) | 1986-02-26 | 1986-02-26 | Reclamation method for color cathode-ray tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62200638A true JPS62200638A (en) | 1987-09-04 |
Family
ID=12604373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61041292A Pending JPS62200638A (en) | 1986-02-26 | 1986-02-26 | Reclamation method for color cathode-ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62200638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100080640A1 (en) * | 2008-09-26 | 2010-04-01 | Brother Kogyo Kabushiki Kaisha | Document Feeder and Document Scanning Device Provided with the Same |
| JP2010076899A (en) * | 2008-09-26 | 2010-04-08 | Brother Ind Ltd | Document reader |
-
1986
- 1986-02-26 JP JP61041292A patent/JPS62200638A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100080640A1 (en) * | 2008-09-26 | 2010-04-01 | Brother Kogyo Kabushiki Kaisha | Document Feeder and Document Scanning Device Provided with the Same |
| JP2010076900A (en) * | 2008-09-26 | 2010-04-08 | Brother Ind Ltd | Document conveying device |
| JP2010076899A (en) * | 2008-09-26 | 2010-04-08 | Brother Ind Ltd | Document reader |
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