JPH04155726A - Manufacture of display tube cover glass - Google Patents
Manufacture of display tube cover glassInfo
- Publication number
- JPH04155726A JPH04155726A JP28249590A JP28249590A JPH04155726A JP H04155726 A JPH04155726 A JP H04155726A JP 28249590 A JP28249590 A JP 28249590A JP 28249590 A JP28249590 A JP 28249590A JP H04155726 A JPH04155726 A JP H04155726A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- cover glass
- chamfering
- display tube
- face
- 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
- 239000006059 cover glass Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000011521 glass Substances 0.000 claims abstract description 41
- 125000006850 spacer group Chemical group 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims description 12
- 239000005394 sealing glass Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000005498 polishing Methods 0.000 abstract description 6
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2215/00—Press-moulding glass
- C03B2215/40—Product characteristics
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は表示管用カバーガラスの製造方法に間し、特に
蛍光表示管に用いられる表示管用カバーガラスの製造方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a cover glass for a display tube, and more particularly to a method for manufacturing a cover glass for a display tube used in a fluorescent display tube.
従来、表示管用カバーガラスは、第５に示すように、フ
ェースガラス６とスペーサガラス７を別々にガラス素板
より各々指定寸法に切断していた。Conventionally, in the cover glass for a display tube, a face glass 6 and a spacer glass 7 were separately cut into specified dimensions from a glass base plate, as shown in FIG.
切断されたスペーサガラス７は、更に、指定寸法に枠状
に折り曲げ加工していた。折り曲げ加工は、ガスバーナ
を使用し、折り曲げ支点部分を加熱し９０°に曲げ加工
していた。陽極基板に封着するスペーサガラス７端面は
、曲げ加工前に乾式又は湿式研磨にて面取りしたものを
使用した。The cut spacer glass 7 was further bent into a frame shape with specified dimensions. The bending process used a gas burner to heat the bending fulcrum part and bend it at 90°. The end face of the spacer glass 7 to be sealed to the anode substrate was chamfered by dry or wet polishing before bending.
このように、研磨加工されたスペーサガラス７とフェー
スガラス６を最終的に封着ガラス８にて溶着しカバーガ
ラスとして陽極基板に封着していた。In this way, the polished spacer glass 7 and the face glass 6 were finally welded together with the sealing glass 8 and sealed to the anode substrate as a cover glass.
上述した従来のカバーガラスは、フェースガラスとスペ
ーサガラスを別々にガラス素板より指定寸法に切断し、
切断されたスペーサガラスは端面部分を乾式又は湿式研
磨にて面取りを行い、封着ガラスでフェーサガラスを溶
着して形成されていた。The conventional cover glass described above is made by separately cutting the face glass and spacer glass into specified dimensions from a glass base plate.
The cut spacer glass was formed by chamfering the end face portion by dry or wet polishing and welding the facer glass with sealing glass.
この作業の中で、スペーサガラスの面取りを乾式又は湿
式研磨で実施しているため、作業中ガラスにクラックが
発生したり、研磨後は洗浄しなけらばならないという問
題点があった。In this work, the chamfering of the spacer glass is carried out by dry or wet polishing, which causes problems such as cracks occurring in the glass during the work and the need to clean it after polishing.
又、フェースガラスとスペーサガラスとを別々に加工す
るため作業効率が悪いという問題点も発生していた。Furthermore, since the face glass and the spacer glass are processed separately, there has been a problem in that work efficiency is poor.
本発明の目的は、クラックの発生がなく、作業効率の高
い表示管用カバーガラスの製造方法を提供することにあ
る。An object of the present invention is to provide a method for manufacturing a display tube cover glass that does not cause cracks and has high working efficiency.
本発明は、フェースガラスと、該フェースガラスに封着
ガラスによって封着されるスペーサガラスとを備え陽極
基板に封着されて真空容器を形成する表示管用カバーガ
ラスの製造方法において、前記フェースガラスと前記ス
ペーサガラスを加熱成形して一体構造に形成するととも
に前記陽極基板との封着端面が面取り加工されている。The present invention provides a method for manufacturing a cover glass for a display tube, which comprises a face glass and a spacer glass sealed to the face glass by a sealing glass, and is sealed to an anode substrate to form a vacuum container. The spacer glass is formed into an integral structure by heat molding, and the end surface for sealing with the anode substrate is chamfered.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第１図〜第３図は本発明の第１の実施例の製造方法を説
明する工程順に示した断面図である。FIGS. 1 to 3 are cross-sectional views showing the order of steps for explaining the manufacturing method of the first embodiment of the present invention.
第１の実施例は、第１図に示すように、まず、下型２に
ガラス板３をセットし、更に、上型１をセットする。陽
極基板側到着部分に該当する下型２のコーナ一部分には
ガラス面取り用に加工部４があらかじめ設けである。In the first embodiment, as shown in FIG. 1, first, a glass plate 3 is set on a lower mold 2, and then an upper mold 1 is set. A processing portion 4 for chamfering the glass is previously provided in a corner portion of the lower die 2 corresponding to the portion arriving at the anode substrate side.
次に、第２図に示すように、この成形型を加圧し、約１
０００℃に加熱する。このとき、ガラス板３は軟化流動
し上型ｌにより押圧され、ガラス板３が成形される。Next, as shown in Fig. 2, this mold is pressurized and approximately 1
Heat to 000°C. At this time, the glass plate 3 softens and flows and is pressed by the upper mold 1 to form the glass plate 3.
下型２には加工部４が設けであるため、カバーガラス成
形と同時にこの部分も加工面取りされて、第３図に示す
ように、陽極基板側封着部分の内側に０．５ｍｍの面取
りが形成されたカバーガラス５が得られる。Since the lower mold 2 is provided with a processed part 4, this part is also chamfered at the same time as the cover glass is formed, and as shown in Fig. 3, a 0.5 mm chamfer is created on the inside of the sealed part on the anode substrate side. A formed cover glass 5 is obtained.
第４図は本発明の第２の実施例の製造方法を説明する断
面図である。FIG. 4 is a sectional view illustrating the manufacturing method of the second embodiment of the present invention.
第２の実施例は、第４図に示すように、陽極基板側封着
部分に該当する下型２の部分を両面共に加工したもので
加工部４ａを設けた例である。In the second embodiment, as shown in FIG. 4, a portion of the lower mold 2 corresponding to the anode substrate side sealing portion is processed on both sides, and a processed portion 4a is provided.
この成形型を用いても加熱成形と同時に面取り加工を行
うことにより陽極基板側封着部分の内外両側に面取りが
形成されたカバーガラスが得られる。Even when this mold is used, a cover glass in which chamfers are formed on both the inner and outer sides of the anode substrate side sealing portion can be obtained by performing the chamfering process at the same time as the heat molding.
以上説明したように、本発明は、表示管用カバーガラス
の製造方法に関し、一体構造のカバーガラスを製造する
と同時にこのカバーガラスの陽極基板側封着部分に面取
りができるようにカーボン型を加工したものを使用する
ことにより、カバーガラスの研磨による面取りした作業
が不要となる。又、加熱成形にて一体構造のカバーガラ
スとするためフェースガラスとスペーサガラスを個別に
製造しなくてすみ、工程短縮もできるという効果がある
。As explained above, the present invention relates to a method for manufacturing a cover glass for a display tube, and the present invention relates to a method for manufacturing a cover glass for a display tube, and at the same time, a carbon mold is processed so that a cover glass with an integral structure can be chamfered on the anode substrate side sealing part of the cover glass. By using this, there is no need to chamfer the cover glass by polishing it. Furthermore, since the cover glass is made into an integral structure by heat molding, there is no need to manufacture the face glass and the spacer glass separately, which has the effect of shortening the manufacturing process.
更に、洗浄工程も不要となり作業効率改善になるという
効果を有する。Furthermore, there is an effect that a cleaning step is not required, which improves work efficiency.
第１図〜第３図は本発明の第１の実施例の製造方法を説
明する工程順に示した断面図、第４図は本発明の第２の
実施例の製造方法を説明する断面図、第５図は従来の表
示管用カバーガラスの一例の断面図である。
１・・・上型、２・・・下型、３・・・ガラス板、４，
４ａ・・・加工部、５・・・カバーガラス、６・・・フ
ェースガラス、７・・・スペーサガラス、８・・・封着
ガラス。1 to 3 are sectional views showing the manufacturing method of the first embodiment of the present invention in the order of steps, and FIG. 4 is a sectional view illustrating the manufacturing method of the second embodiment of the invention, FIG. 5 is a sectional view of an example of a conventional display tube cover glass. 1... Upper mold, 2... Lower mold, 3... Glass plate, 4,
4a... Processing part, 5... Cover glass, 6... Face glass, 7... Spacer glass, 8... Sealing glass.
Claims (1)
つて封着されるスペーサガラスとを備え陽極基板に封着
されて真空容器を形成する表示管用カバーガラスの製造
方法において、前記フェースガラスと前記スペーサガラ
スを加熱成形して一体構造に形成するとともに前記陽極
基板との封着端面を面取り加工することを特徴とする表
示管用カバーガラスの製造方法。A method for producing a display tube cover glass comprising a face glass and a spacer glass sealed to the face glass by a sealing glass and sealed to an anode substrate to form a vacuum container, wherein the face glass and the spacer glass are sealed to an anode substrate to form a vacuum container. 1. A method of manufacturing a cover glass for a display tube, which comprises heating and forming glass to form an integral structure, and chamfering an end surface that is sealed to the anode substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28249590A JPH04155726A (en) | 1990-10-19 | 1990-10-19 | Manufacture of display tube cover glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28249590A JPH04155726A (en) | 1990-10-19 | 1990-10-19 | Manufacture of display tube cover glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04155726A true JPH04155726A (en) | 1992-05-28 |
Family
ID=17653186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28249590A Pending JPH04155726A (en) | 1990-10-19 | 1990-10-19 | Manufacture of display tube cover glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04155726A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990068730A (en) * | 1999-06-15 | 1999-09-06 | 성필호 | Cover glass used to plat display |
| JP2005097105A (en) * | 2003-09-25 | 2005-04-14 | Schott Ag | Process for fabricating glass/glass-ceramic plate on which widened facet is formed and glass/glass-ceramic plate with widened facet |
| JP2014095886A (en) * | 2012-10-10 | 2014-05-22 | Nippon Electric Glass Co Ltd | Manufacturing method of cover glass for mobile display |
| JP2016081533A (en) * | 2014-10-21 | 2016-05-16 | ティーピーケイ タッチ ソリューションズ（シアメン）インコーポレーテッド | Touch panel and three-dimensional cover plate therefor |
-
1990
- 1990-10-19 JP JP28249590A patent/JPH04155726A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990068730A (en) * | 1999-06-15 | 1999-09-06 | 성필호 | Cover glass used to plat display |
| KR100359440B1 (en) * | 1999-06-15 | 2002-11-07 | 주식회사 파이온테크 | A Manufacturing Method Of Cover Glass For The Flat Display Device |
| JP2005097105A (en) * | 2003-09-25 | 2005-04-14 | Schott Ag | Process for fabricating glass/glass-ceramic plate on which widened facet is formed and glass/glass-ceramic plate with widened facet |
| JP4700310B2 (en) * | 2003-09-25 | 2011-06-15 | ショット アクチエンゲゼルシャフト | GLASS / GLASS CERAMIC PLATE MANUFACTURING METHOD WITH WHIDE SLOPE FORMED AT END AND GLASS / GLASS CERAMIC PLATE HAVING WIDE SLOPE AT END |
| JP2014095886A (en) * | 2012-10-10 | 2014-05-22 | Nippon Electric Glass Co Ltd | Manufacturing method of cover glass for mobile display |
| JP2016081533A (en) * | 2014-10-21 | 2016-05-16 | ティーピーケイ タッチ ソリューションズ（シアメン）インコーポレーテッド | Touch panel and three-dimensional cover plate therefor |
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