JPS6336099B2 - - Google Patents
Info
- Publication number
- JPS6336099B2 JPS6336099B2 JP11961080A JP11961080A JPS6336099B2 JP S6336099 B2 JPS6336099 B2 JP S6336099B2 JP 11961080 A JP11961080 A JP 11961080A JP 11961080 A JP11961080 A JP 11961080A JP S6336099 B2 JPS6336099 B2 JP S6336099B2
- Authority
- JP
- Japan
- Prior art keywords
- cathode ray
- base
- ray tube
- adhesive
- base adhesive
- 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
- 239000000853 adhesive Substances 0.000 claims description 21
- 230000001070 adhesive effect Effects 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims description 2
- 238000001994 activation Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 239000013464 silicone adhesive Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 238000007603 infrared drying Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
Description
【発明の詳細な説明】
この発明は陰極線管のベース接着剤硬化方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of curing a base adhesive for a cathode ray tube.
一般に陰極線管は、ネツク部に電子銃が封止さ
れており、その後端のステム部には、排気管およ
び電極からの引出し線であるステムアウターリー
ドが取りつけられており、排気作業が完了すれ
ば、排気管を封止して管内を高真空に保つてい
る。 Generally, in a cathode ray tube, an electron gun is sealed in the neck part, and a stem outer lead, which is a lead wire from the exhaust pipe and electrode, is attached to the stem part at the rear end. The exhaust pipe is sealed to maintain a high vacuum inside the pipe.
しかしこのままでは、排気管は破損しやすく、
またステムアウターリードを曲げるとステムに傷
が入り、そのために長期間高真空に保つことがで
きなくなる。したがつて、従来の陰極線管の多く
は、排気口の封止部とステムアウターリードの保
護のためにベースが取りつけられている。 However, if left as is, the exhaust pipe will be easily damaged.
Also, bending the stem outer lead will damage the stem, making it impossible to maintain high vacuum for a long period of time. Therefore, most conventional cathode ray tubes are equipped with a base to protect the sealing part of the exhaust port and the stem outer lead.
第１図はこのような陰極線管の一例を示すもの
で、１はネツク部でその後端はステム２によつて
閉塞されている。このネツク部１内には電子銃が
封止されており、ステム２側より順次ヒータ３、
陰極４、第１格子５、第２格子６、陽極７が配列
されている。陽極７にはバネ８が取りつけられて
おり、導電性物質９に接続されている。１０はメ
タルバツク、１１は螢光面、１２はステムアウタ
ーリード、１３はベース、１４はベース接着剤を
示す。 FIG. 1 shows an example of such a cathode ray tube, in which 1 is a neck portion, and the rear end thereof is closed by a stem 2. An electron gun is sealed inside this network part 1, and a heater 3,
A cathode 4, a first lattice 5, a second lattice 6, and an anode 7 are arranged. A spring 8 is attached to the anode 7 and connected to a conductive substance 9. 10 is a metal bag, 11 is a fluorescent surface, 12 is a stem outer lead, 13 is a base, and 14 is a base adhesive.
ステム部２にベース１３を取りつけるには、ベ
ース１３に形成したリード線挿入のための小穴と
ステムアウターリード１２との嵌合を利用する場
合があるが、主に接着剤１４を使つてステム２と
ベース１３との接着を行なつている。 To attach the base 13 to the stem portion 2, fitting of the stem outer lead 12 with a small hole formed in the base 13 for inserting the lead wire may be used, but the adhesive 14 is mainly used to attach the stem 2. and the base 13.
この接着剤硬化方法として、従来は陰極線管を
加熱炉内に入れたり、熱風または赤外線乾燥を用
いて接着剤の硬化を行なつていた。しかしこのよ
うな方法では、管体の温度が50〜120℃に上昇し、
螢光面１１や導電性物質９、あるいはガラス管壁
よりガス放出があり、管内真空度（またはガス
比）が悪くなる。これは管内容積の小さい小型の
陰極線管になるほど顕著に現われる。このように
ガス比が悪くなると、電子放出を安定化させる活
性化工程で陰極４が損傷され、十分な電子放出量
が得られなくなつたり、また実動作中にも管内ガ
スにより陰極が劣化し、長時間使用ができなくな
る。 Conventionally, the adhesive has been cured by placing a cathode ray tube in a heating furnace or by using hot air or infrared drying. However, with this method, the temperature of the tube increases to 50-120℃,
Gas is released from the fluorescent surface 11, the conductive material 9, or the glass tube wall, and the degree of vacuum (or gas ratio) inside the tube deteriorates. This becomes more noticeable as the cathode ray tube becomes smaller and has a smaller internal volume. If the gas ratio deteriorates in this way, the cathode 4 may be damaged during the activation process to stabilize electron emission, making it impossible to obtain a sufficient amount of electron emission, or the cathode may deteriorate due to the gas in the tube during actual operation. , the product cannot be used for a long time.
この発明はこれらの欠点を除去するためになさ
れたものであり、陰極線管のベース接着剤硬化中
に、管体の一部を強制冷却することによつて、管
内ガス比の劣下を防ぎ、長期間にわたつて安定し
た電子放射特性を維持できる陰極線管のベース接
着剤硬化方法を提供するものである。 This invention was made to eliminate these drawbacks, and by forcibly cooling a part of the tube body while the base adhesive of the cathode ray tube is curing, the deterioration of the gas ratio in the tube is prevented. The present invention provides a method for curing a base adhesive for cathode ray tubes that can maintain stable electron emission characteristics over a long period of time.
以下、この発明の実施例について説明する。第
２図はこの発明の一実施例を説明する概略断面図
であり、図中第１図と同一部分は同一符号を付し
てあるので説明は省略する。１５はこの発明に使
用するベース接着剤硬化炉である。１６は加熱ヒ
ータ、１７は陰極線管保持台、１８は冷却フア
ン、１９は炉の内部、２０は冷却ゾーンを示す。 Examples of the present invention will be described below. FIG. 2 is a schematic cross-sectional view illustrating an embodiment of the present invention, and the same parts as in FIG. 15 is a base adhesive curing furnace used in this invention. 16 is a heater, 17 is a cathode ray tube holding stand, 18 is a cooling fan, 19 is the inside of the furnace, and 20 is a cooling zone.
ベース接着剤は最近高耐電圧特性が要求され、
一液性シリコン接着剤よりも３液性シリコン接着
剤が使われつつある。しかしこの３液性の場合は
（たとえば信越化学のKE―1800A，Ｂ，Ｃ）、100
℃以上に接着剤の温度を上げないと硬化接着しな
い。 Recently, base adhesives are required to have high withstand voltage characteristics.
Three-component silicone adhesives are becoming more popular than one-component silicone adhesives. However, in the case of this three-component type (for example, Shin-Etsu Chemical's KE-1800A, B, C), 100
The adhesive will not cure unless the temperature of the adhesive is raised above ℃.
そこで第２図のように、陰極線管のベース１
３、ベース接着剤１４の部分が炉内１９に、また
導電性物質９、螢光面１１の部分が冷却ゾーン２
０にそれぞれ位置するように、陰極線管を保持台
１７に取りつける。そしてヒータ１６によつてベ
ース部を100〜120℃に加熱すると同時に、フアン
１８によつて冷却ゾーン２０に位置する陰極線管
の管体の一部を強制冷却し、50℃以下に保持して
いる。このようにすれば、管内ガス比の劣化も認
められず、活性化工程中または実動作中における
陰極の損傷も防止できる。 Therefore, as shown in Figure 2, the base 1 of the cathode ray tube
3. The base adhesive 14 is placed in the furnace 19, and the conductive material 9 and fluorescent surface 11 are placed in the cooling zone 2.
The cathode ray tubes are attached to the holding stand 17 so that they are respectively positioned at 0. Then, the base portion is heated to 100 to 120°C by the heater 16, and at the same time, a part of the tube body of the cathode ray tube located in the cooling zone 20 is forcibly cooled by the fan 18 to maintain the temperature below 50°C. . In this way, no deterioration of the pipe gas ratio is observed, and damage to the cathode during the activation process or during actual operation can be prevented.
他の実施例として、フアンによる強制風冷の代
りに、水冷による方法も同一効果が得られること
はいうまでもない。また、ベース接着剤硬化時
に、活性化工程を同時に行なうことにより、作業
能率を上げることもできる。 As another example, it goes without saying that the same effect can be obtained by using water cooling instead of forced air cooling using a fan. Further, by performing the activation step simultaneously when the base adhesive is cured, work efficiency can be increased.
上述の実施例の効果の一例を示せば、従来の方
法でベース接着剤の硬化を行なつた場合は、管体
が100℃以上になるので、管内ガス比は10〜100倍
になつていたが、この発明の実施例では、接着剤
の硬化前後でほとんどガス比に差が認められなか
つた。 To give an example of the effect of the above-mentioned embodiment, if the base adhesive was cured using the conventional method, the temperature of the pipe body would be over 100°C, so the gas ratio in the pipe would be 10 to 100 times higher. However, in the examples of the present invention, almost no difference was observed in the gas ratio before and after the adhesive was cured.
以上説明したように、この発明によれば陰極線
管のベース接着剤硬化中に管体の一部を強制冷却
することにより、ベース接着時に発生する管内ガ
ス比の劣化が防止できるとともに、長期間安定し
た電子放射特性が得られる。また、工程歩留も大
きく向上させることができる。 As explained above, according to the present invention, by forcibly cooling a part of the tube body while the base adhesive of the cathode ray tube is curing, it is possible to prevent the deterioration of the gas ratio in the tube that occurs when the base is bonded, and to ensure long-term stability. electron emission characteristics can be obtained. Further, the process yield can also be greatly improved.
第１図は陰極線管の断面図、第２図はこの発明
の一実施例を示す概略断面図である。
１３……ベース、１４……ベース接着剤、１５
……ベース接着剤硬化炉、１６……加熱ヒータ、
１７……陰極線管保持台、１８……冷却フアン、
１９……炉の内部、２０……冷却ゾーン。なお、
図中同一符号は、同一または相当部分を示す。
FIG. 1 is a sectional view of a cathode ray tube, and FIG. 2 is a schematic sectional view showing an embodiment of the present invention. 13...Base, 14...Base adhesive, 15
... Base adhesive curing furnace, 16 ... Heater,
17...Cathode ray tube holding stand, 18...Cooling fan,
19... Inside of the furnace, 20... Cooling zone. In addition,
The same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
部を強制冷却することを特徴とする陰極線管のベ
ース接着剤硬化方法。 ２ ベース接着剤硬化時に、活性化工程を同時に
行なうことを特徴とする特許請求の範囲第１項記
載の陰極線管のベース接着剤硬化方法。[Scope of Claims] 1. A method for curing a base adhesive for a cathode ray tube, which comprises forcibly cooling a part of the tube body during curing of the base adhesive for a cathode ray tube. 2. The method of curing a base adhesive for a cathode ray tube according to claim 1, wherein an activation step is carried out simultaneously when the base adhesive is cured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11961080A JPS5743340A (en) | 1980-08-26 | 1980-08-26 | Hardening method of base adhesives for cathode ray tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11961080A JPS5743340A (en) | 1980-08-26 | 1980-08-26 | Hardening method of base adhesives for cathode ray tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5743340A JPS5743340A (en) | 1982-03-11 |
| JPS6336099B2 true JPS6336099B2 (en) | 1988-07-19 |
Family
ID=14765667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11961080A Granted JPS5743340A (en) | 1980-08-26 | 1980-08-26 | Hardening method of base adhesives for cathode ray tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5743340A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0216283A (en) * | 1988-07-04 | 1990-01-19 | Shimizu Corp | Electromagnetic shielding blind |
-
1980
- 1980-08-26 JP JP11961080A patent/JPS5743340A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0216283A (en) * | 1988-07-04 | 1990-01-19 | Shimizu Corp | Electromagnetic shielding blind |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5743340A (en) | 1982-03-11 |
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