JPS6047502B2 - How to dry glass tubes - Google Patents
How to dry glass tubesInfo
- Publication number
- JPS6047502B2 JPS6047502B2 JP2362678A JP2362678A JPS6047502B2 JP S6047502 B2 JPS6047502 B2 JP S6047502B2 JP 2362678 A JP2362678 A JP 2362678A JP 2362678 A JP2362678 A JP 2362678A JP S6047502 B2 JPS6047502 B2 JP S6047502B2
- Authority
- JP
- Japan
- Prior art keywords
- glass tube
- drying
- glass
- slit
- wall
- 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
- Drying Of Solid Materials (AREA)
Description
【発明の詳細な説明】
本発明はガラス管の乾燥方法に関するものにして、特に
、けい光ランプ用の直管またはネックフォーム管の洗浄
工程における管内壁の付着水、または塗布工程において
塗布されたけい先住スラリ塗布膜中の溶剤を乾燥するこ
とに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for drying glass tubes, and is particularly concerned with drying water adhering to the inner wall of the tube during the cleaning process of straight or neck-formed tubes for fluorescent lamps, or water applied during the coating process. This relates to drying the solvent in the silicon-based slurry coating film.
けい光ランプを量産製造する際におけるガラス管の洗浄
工程、または、ガラス管内壁へのけい先住スラリ塗布膜
の塗布工程においては、ガラス管を連続的に移送して、
その間に管内を乾燥することが有利である。In the process of cleaning glass tubes during mass production of fluorescent lamps, or in the process of applying a fluorescent slurry coating film to the inner wall of the glass tube, the glass tubes are continuously transported.
It is advantageous to dry the inside of the tube in the meantime.
したがつて、ガラス管の洗浄、およびけい光体スラリ塗
布工程における乾燥方法としては、第１図および第２図
に示すように、ガラス管１の移送軌跡に従い、マニホル
ド２にスリット状ノズル３を備えて、８０℃前後の熱風
をノズル３から、ガラス管１の上端から連続的に吹き込
むことが有利であると考えられる（特開昭５０−１０３
１８４号１管球への被膜形成方法およびその装置ョおよ
び特開昭５２−５８２８１号１ガラス管の洗滌塗布装置
Ｊ）。Therefore, as a method for cleaning the glass tube and drying it in the phosphor slurry coating process, as shown in FIGS. In order to prepare for this, it is considered advantageous to continuously blow hot air at around 80°C from the upper end of the glass tube 1 from the nozzle 3.
No. 184 No. 1 Method and apparatus for forming a coating on a tube and JP-A No. 52-58281 No. 1 Glass tube cleaning coating device J).
このようなガラス管の乾燥工程において、スリット状ノ
ズル３の幅Ｗが小さく、熱風の風速が大なるときは、ガ
ラス管上端のスリット状ノズル３の長手方向に相当する
部分へ熱風が集中し、そのためその部分だけが早く乾燥
し、その熱風の集中部分の前方からガラス管を見た場合
には、第３図の斜視図における曲線１１を境としてガラ
ス管内面の部分１０のみが乾燥することにより、特に、
けい光体スラリ塗布膜に塗布斑が生じ、製品となつたけ
い光ランプの外観不良をひき起こすものである。また、
スリット状スリット状ノズル３の先端とガラス管の上端
４との間隔Ｌは小なるほど乾燥効率は良いが、Ｌが小さ
すぎると前記の塗布斑が生じ易くなる。本発明の目的は
、上記した大量生産方式の工程におけるガラス管の乾燥
における塗布斑を生せしめるようなことのないガラス管
の乾燥方法を提供することにある。In such a process of drying a glass tube, when the width W of the slit nozzle 3 is small and the speed of the hot air is high, the hot air concentrates on a portion of the upper end of the glass tube corresponding to the longitudinal direction of the slit nozzle 3, Therefore, only that part dries quickly, and when looking at the glass tube from the front of the hot air concentrated part, only the part 10 on the inner surface of the glass tube with the curve 11 in the perspective view of FIG. 3 as the boundary dries. ,especially,
Coating spots occur on the phosphor slurry coating film, causing poor appearance of the product and the fluorescent lamp. Also,
The smaller the distance L between the tip of the slit nozzle 3 and the upper end 4 of the glass tube, the better the drying efficiency, but if L is too small, the above-mentioned coating spots are likely to occur. An object of the present invention is to provide a method for drying glass tubes that does not cause coating unevenness during drying of glass tubes in the above-described mass production process.
本発明におけるガラス管の乾燥方法の特徴とするところ
は、ガラス管を水平面に対して垂直に立てて位置せしめ
、ガラス管の上方に水平に配設したマニホルドの下方に
備えたスリット状ノズルよりガラス管に熱風を吹き込ん
でガラス管を乾燥するものにおいて、該スリット状ノズ
ルのスリット幅をＷＴｒＯｎｌ該ガラス管の開口の直径
をＤＴｒ＄Ｌ１該ガラス管の上端と該スリット状ノズル
の下端間の間．隔をＬｗｔｌとしたとき、の条件を満足
するように配置し、該スリット状ノズルにおける熱風の
風速を１０７ｎ１ｓｅｃ以下であるようにするものであ
る。The method of drying glass tubes according to the present invention is characterized in that the glass tubes are placed perpendicularly to a horizontal surface, and the glass tubes are dried using a slit-like nozzle provided below a manifold arranged horizontally above the glass tubes. In a device that dries a glass tube by blowing hot air into the tube, the slit width of the slit-shaped nozzle is WTrOnl The diameter of the opening of the glass tube is DTr$L1 The distance between the upper end of the glass tube and the lower end of the slit-shaped nozzle. When the distance is Lwtl, the arrangement is such that the following conditions are satisfied, and the speed of the hot air in the slit-shaped nozzle is 107 n1 sec or less.
このとき、ガラス管は直管でもネックフォーム管でもよ
く、熱風の温度は７０℃〜１００℃の範囲であることが
好ましい。このようにすることにより、乾燥による塗布
斑を生ずることなく、従つてけい光ランプの外観不良の
発生を防止できるので、その効用は大なるものがある。
このような本発明方法によれば、従来方法に比して、熱
効率をそれほど低下させることなく、ガラス管を連続し
て、洗浄における乾燥、けい光体スラリ塗布膜の乾燥を
行うことができるものである。At this time, the glass tube may be a straight tube or a neck foam tube, and the temperature of the hot air is preferably in the range of 70°C to 100°C. By doing so, it is possible to prevent uneven coating due to drying and thereby to prevent the occurrence of poor appearance of the fluorescent lamp, which is highly effective.
According to the method of the present invention, glass tubes can be continuously dried during cleaning and the phosphor slurry coating film can be dried without significantly reducing thermal efficiency compared to conventional methods. It is.
本発明方法により、水性けい光体スラリ塗布膜の乾燥を
行つたところ、長さ１２００Ｔｎのガラス管において、
約１紛間で乾燥が完了し、これは従来方法の場合と変る
ことなく、しかも、多数の塗布において塗布斑の発生は
皆無で、本発明の有利性が確認された。When an aqueous phosphor slurry coating film was dried by the method of the present invention, in a glass tube with a length of 1200 Tn,
Drying was completed in about one coat, which was the same as in the conventional method, and there was no occurrence of coating spots in a large number of coats, confirming the advantage of the present invention.
第１図は本発明方法を実施するための乾燥用ガラス管を
熱風吹き込み用のスリット状ノズルを備えたマニホルド
の位置関係を示す図面で、マニホルドの中心軸に直角な
面による一部断面を示す立面図、第２図は第１図におけ
るものをマニホルドの中心軸と平行な面による立面図、
第３図はガラス管内に発生した塗布斑を示す斜視図であ
る。
１・・・・・・ガラス管、２・・・・・・マニホルド、
３・・・・・・スリット状ノズル、４・・・・・・ガラ
ス管上端、１０・・・塗布斑、１１・・・・・・塗布斑
境界線。FIG. 1 is a drawing showing the positional relationship of a manifold equipped with a slit-shaped nozzle for blowing hot air into a drying glass tube for carrying out the method of the present invention, and shows a partial cross section taken along a plane perpendicular to the central axis of the manifold. Elevation view, Figure 2 is an elevation view of the one in Figure 1 taken from a plane parallel to the central axis of the manifold.
FIG. 3 is a perspective view showing coating spots generated inside the glass tube. 1... Glass tube, 2... Manifold,
3...Slit-shaped nozzle, 4...Top end of glass tube, 10...Applied spots, 11......Applied spot boundary line.
Claims (1)
位置せしめ、ガラス管の上方のノズルより該ガラス管内
に熱風を吹き込み、該ガラス管内壁を乾燥するものにお
いて、該ノズルは、水平に設置されたマニホルドの下方
のスリット状であるものにして、該スリットの幅をＷｍ
ｍ、 該ガラス管端部の開口の直径をＤｍｍ、 該ガラス管の上端と該スリット状ノズルの下端との間隔
をＬｍｍ、としたとき、Ｗ≧１／５×Ｄ、 Ｌ≦Ｄ、 となるごとく配置し、該スリット状ノズルにおける熱風
の風速を１０ｍ／ｓｅｃ以下であるようにすることを特
徴とするガラス管の乾燥方法。 ２ 該ガラス管はけい光ランプ用直管またはネックフォ
ームのガラス管である特許請求の範囲第１項に記載のガ
ラス管の乾燥方法。 ３ 該熱風の温度は７０℃と１００℃の範囲内のもので
ある特許請求の範囲第１項または第２項に記載のガラス
管の乾燥方法。 ４ 該ガラス管内壁を乾燥するのは、該ガラス管を洗浄
した後管内壁に残留付着している洗浄水を蒸発乾燥する
ものである特許請求の範囲第１項ないし第３項のいずれ
かに記載のガラス管の乾燥方法。 ５ 該ガラス管内壁を乾燥するのは、該ガラス管内壁に
塗布されたけい光体スラリ塗布膜中の溶媒を蒸発乾燥す
るものである特許請求の範囲第１項ないし第３項のいず
れかに記載のガラス管の乾燥方法。 ６ 該ガラス管内壁を乾燥するのは、該ガラス管内壁に
塗布された水性けい光体スラリ塗布膜中の水分を蒸発乾
燥するものである特許請求の範囲第１項ないし第３項の
いずれかに記載のガラス管の乾燥方法。 ７ 該ガラス管は、水平に設置されたマニホルドに備え
られたスリット状ノズルのスリットの長手方向両端間を
、一方の端から他方の端へと順次列をなして移動するよ
うに配置されて、他方の端においてはガラス管の内壁は
乾燥状態となるようになされるものである特許請求の範
囲第１項ないし第６項のいずれかに記載のガラス管の乾
燥方法。[Scope of Claims] 1. A method for drying the inner wall of the glass tube by positioning the glass tube so that the tube axis is perpendicular to the horizontal plane and blowing hot air into the glass tube from a nozzle above the glass tube, The nozzle is in the form of a slit below a horizontally installed manifold, and the width of the slit is Wm.
m, the diameter of the opening at the end of the glass tube is Dmm, and the distance between the upper end of the glass tube and the lower end of the slit nozzle is Lmm, then W≧1/5×D, L≦D, 1. A method for drying glass tubes, characterized in that the slit-shaped nozzles are arranged so that the speed of hot air in the slit-shaped nozzles is 10 m/sec or less. 2. The method for drying a glass tube according to claim 1, wherein the glass tube is a straight tube or a neck foam glass tube for use in a fluorescent lamp. 3. The method of drying a glass tube according to claim 1 or 2, wherein the temperature of the hot air is within the range of 70°C and 100°C. 4. Drying the inner wall of the glass tube is performed by evaporating and drying the cleaning water remaining on the inner wall of the tube after washing the glass tube. Method of drying glass tubes as described. 5. Drying the inner wall of the glass tube is performed by evaporating and drying the solvent in the phosphor slurry coating film applied to the inner wall of the glass tube. Method of drying glass tubes as described. 6. Drying the inner wall of the glass tube is performed by evaporating and drying the moisture in the aqueous phosphor slurry coating film applied to the inner wall of the glass tube. Method for drying glass tubes as described in . 7. The glass tubes are arranged so as to move sequentially in a row from one end to the other end between the longitudinal ends of a slit of a slit-shaped nozzle provided in a horizontally installed manifold, 7. The method of drying a glass tube according to claim 1, wherein the inner wall of the glass tube is kept dry at the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2362678A JPS6047502B2 (en) | 1978-03-03 | 1978-03-03 | How to dry glass tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2362678A JPS6047502B2 (en) | 1978-03-03 | 1978-03-03 | How to dry glass tubes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54116770A JPS54116770A (en) | 1979-09-11 |
| JPS6047502B2 true JPS6047502B2 (en) | 1985-10-22 |
Family
ID=12115797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2362678A Expired JPS6047502B2 (en) | 1978-03-03 | 1978-03-03 | How to dry glass tubes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047502B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6343512U (en) * | 1986-09-05 | 1988-03-23 | ||
| WO2010046144A1 (en) | 2008-10-23 | 2010-04-29 | Sony Ericsson Mobile Communications Ab | Antenna assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0620076Y2 (en) * | 1987-03-26 | 1994-05-25 | 黒崎炉工業株式会社 | Long object heating device |
-
1978
- 1978-03-03 JP JP2362678A patent/JPS6047502B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6343512U (en) * | 1986-09-05 | 1988-03-23 | ||
| WO2010046144A1 (en) | 2008-10-23 | 2010-04-29 | Sony Ericsson Mobile Communications Ab | Antenna assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54116770A (en) | 1979-09-11 |
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