JPS61281031A - Production of glass container - Google Patents
Production of glass containerInfo
- Publication number
- JPS61281031A JPS61281031A JP10638485A JP10638485A JPS61281031A JP S61281031 A JPS61281031 A JP S61281031A JP 10638485 A JP10638485 A JP 10638485A JP 10638485 A JP10638485 A JP 10638485A JP S61281031 A JPS61281031 A JP S61281031A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- mold
- plate
- molds
- glass container
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
- C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/035—Re-forming glass sheets by bending using a gas cushion or by changing gas pressure, e.g. by applying vacuum or blowing for supporting the glass while bending
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Description
【発明の詳細な説明】
ピ）産業上の利用分野
本発明は、平面型螢光灯に用いて好適な平面型電子管に
おけるガラス容器の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION B) Industrial Application Field The present invention relates to a method for manufacturing a glass container in a flat electron tube suitable for use in a flat fluorescent lamp.
−）従来の技術
従来、液晶ＴＶのバックライトとして用いられる平面型
螢光灯や螢光表示管等の平面型電子管は第２図に示す如
く、平板状の第１ガラス基板は）と、平板部（２λ）、
鍔部（２ｂ）及びこの両者を結合する側壁部（２Ｃ）を
有する皿状の第２ガラス基板（２）とで構成され、前記
第１ガラス基板（１）の周縁部と前記第２ガラス基板（
２）の鍔部（２ｂ）とをブリットガラス（３）にて接合
し、両者を密閉している。-) Prior Art Conventionally, in flat electron tubes such as flat fluorescent lamps and fluorescent display tubes used as backlights for LCD TVs, as shown in Figure 2, the first glass substrate is part (2λ),
It is composed of a dish-shaped second glass substrate (2) having a flange (2b) and a side wall (2C) that connects the two, and the peripheral part of the first glass substrate (1) and the second glass substrate (
The flange part (2b) of 2) is joined with the bullet glass (3), and both are sealed.
この様な構造は例えば特開昭５６−３５３５８号公報に
記載されている。Such a structure is described in, for example, Japanese Patent Laid-Open No. 56-35358.
ところで、上述の平面型電子管の第２ガラス基板の成型
は従来、ｆ４３図仔）Ｉこ示す如く、溶解ガラス塊（４
）を雄型（５）と雌型（６１との隙間に介在せしめ、こ
れを同図Ｉｐ）の如くプレスして第２ガラス基板（２）
を成型するプレス法や、第４図に示す如く、軟化温度（
約７００℃）に達した板ガラス（７）を雌型（６）に載
置し、雄型（５）をプレスするホットプレス法等により
行なわれていた。By the way, the molding of the second glass substrate of the above-mentioned flat electron tube has conventionally been carried out using a molten glass lump (4
) is placed in the gap between the male die (5) and the female die (61), and this is pressed as shown in Ip in the same figure to form the second glass substrate (2).
As shown in Figure 4, there is a pressing method for molding
A hot press method or the like is used in which a glass plate (7) that has reached a temperature of approximately 700° C. is placed on a female mold (6) and the male mold (5) is pressed.
しかしながら上述の方法に依れば、軟化温度以上の第２
ガラス基板の表面と金型とが接触するため、前記金型表
面の微細な模様いわゆる梨地模様が前記第２ガラス基板
表面に転写されることになり、平板部（２ａ）の光透過
性が損われてしまう惧れがあった。このため、従来では
表面精度の極めて高い金型を用いるか、或いは成型後に
研磨工程を必要としていた。However, according to the above method, the second
Since the surface of the glass substrate and the mold come into contact, the fine pattern on the surface of the mold, so-called satin pattern, is transferred to the surface of the second glass substrate, and the light transmittance of the flat plate portion (2a) is impaired. There was a fear of being lost. For this reason, conventionally it has been necessary to use a mold with extremely high surface precision or to perform a polishing process after molding.
ｅ→ 発明が解決しようとする問題点
本発明は上述の点に鑑み為されたものであり、皿状のガ
ラス基板の少なくとも平板部に金型表面の模様が転写さ
れることがないガラス容器の製造方法を提供するもので
ある。e→ Problems to be Solved by the Invention The present invention has been made in view of the above points, and provides a glass container in which the pattern on the surface of the mold is not transferred to at least the flat plate portion of the dish-shaped glass substrate. A manufacturing method is provided.
に）問題点を解決するための手段
本発明は、皿状ガラス容器の出発材料である平板状ガラ
スを略軟化心温度まで加熱した後、前記平板状ガラスの
うち少なくとも後に平板部となる部分と成型金型とを非
接触ｒ＝”Ｅ保ちつつ前記平板状ガラスを加圧成型する
。B) Means for Solving the Problems The present invention provides a method for heating flat glass, which is the starting material for a dish-shaped glass container, to approximately the softening core temperature, and then heating at least a portion of the flat glass that will later become a flat plate portion. The flat glass is pressure molded while maintaining non-contact r = "E with the molding die.
（ホ）作用
上述の手段により平板状ガラスは後に平板部となる部分
には金型が当接せずに皿状に成型される。(e) Effect: By the above-described means, the flat glass is molded into a dish shape without the mold coming into contact with the portion that will later become the flat plate portion.
（へ）実施例 以下、図面に従い本発明の一実施例を説明する。(f) Example An embodiment of the present invention will be described below with reference to the drawings.
第１図（イ）−）は本実施例における基板ガラスの製造
工程を示す図である。FIG. 1(a)-) is a diagram showing the manufacturing process of the substrate glass in this example.
同図において、（８１（９１は出発材料となる板ガラス
（７）の端部を上下から挾持する一対の挾持金型、α０
）はその下面に一対の突部（１０ａ）（１０ａ）、凹所
（１０ｂ）及び一対のノズル（１０ｃ）（１０ｃ）が形
成された雄型、（１１）はその上面が平坦で一対のノズ
ル（１１り（１１１）が形成された雌型であり、この両
型は上下方向に所定の間隙を保持したまま上下動可能と
なっている。In the same figure, (81 (91 is a pair of clamping molds that clamp the edge of the plate glass (7) serving as the starting material from above and below, α0
) is a male type with a pair of protrusions (10a) (10a), a recess (10b) and a pair of nozzles (10c) (10c) formed on its lower surface, and (11) is a male type with a flat upper surface and a pair of nozzles. It is a female mold with a 111 (111) formed therein, and both molds can be moved up and down while maintaining a predetermined gap in the vertical direction.
次に本実施例における製造方法を説明する。Next, the manufacturing method in this example will be explained.
■ 第１工程
予め、鏡面加工された板ガラス（７）の端部を一対の挟
持金型（８）（９１間に挾持せしめる（第１図（イ））
。■ First step: In advance, the end of the mirror-finished plate glass (7) is clamped between a pair of clamping molds (8) (91) (Figure 1 (a)).
.
この状態では前記板ガラス（７）は雄型αω及び雌型（
１１）とは非接触となっている。In this state, the plate glass (7) has a male type αω and a female type (
There is no contact with 11).
■ 第２工程
雄型ａ■及び雌型（Ｉｌｌの各一対のノズル（ＩＯＣ）
（１０Ｃ）及び（１１ｍ）（１１ａ）により、熱圧気を
矢印の如く巡環せしめ、板ガラス（７）を軟化温度（約
７００℃）程度に加熱する（第１図イ））。■ 2nd process Male mold a■ and female mold (Ill each pair of nozzles (IOC)
(10C) and (11m) (11a), the hot pressure air is circulated as shown by the arrow, and the plate glass (7) is heated to about the softening temperature (approximately 700°C) (FIG. 1A)).
■ 第３工程
挾持金型（８）（９１に対して雄型叫及び雌型αυが所
定の間隙を保持したまま下降する。すると、雄型α■の
一対の突部（１０ａ）（１０ａ）が板ガラス（７）を押
圧して変形せしめ、第１図（０１の如（、鍔部（２ｂ）
、平板部（２２ｋ）及び側壁部（２Ｃ）が形成される。■ 3rd process The male die and female die αυ are lowered with a predetermined gap maintained relative to the clamping die (8) (91. Then, the pair of protrusions (10a) (10a) of the male die α■ presses the plate glass (7) to deform it, and as shown in Figure 1 (01), the flange (2b)
, a flat plate portion (22k) and a side wall portion (2C) are formed.
尚、この工程中は、前記各ノズルからの熱圧気は第１図
（イ）の如く巡環せず同図ｊｃ１）の如く平板部（２λ
）の左右均等に熱圧気が吹き付けられる様に制御される
。これによって軟化状態にある平板部（２２）が下方へ
垂れ下がるのを防止する。During this process, the hot and pressurized air from each nozzle does not circulate as shown in Figure 1 (a), but instead flows through the flat plate part (2λ) as shown in Figure 1 (jc1).
) is controlled so that the hot pressure air is blown evenly on the left and right sides. This prevents the flat plate portion (22) in a softened state from hanging downward.
■ 第４工程
第１図（ロ）の如く＄２ガラス基板（２）が成型された
後、熱圧気の温度を除々に下げ、ガラスの歪点（約５０
０℃）以下になった後、上方の挾持金型（８）及び雄型
α■を上昇せしめると共にこのガラス成型品を下方の挾
持金型（９）から離脱して常温まで除冷する。■ Fourth step After the $2 glass substrate (2) is molded as shown in Figure 1 (b), the temperature of the hot pressurized air is gradually lowered to reach the strain point of the glass (approximately 50
0° C.), the upper clamping mold (8) and the male mold α■ are raised, and the glass molded product is removed from the lower clamping mold (9) and slowly cooled to room temperature.
上述の工程により成型されたガラス容器は、少な（とも
その平板部には金型模様が転写されず鏡面状態が保持さ
れている。The glass container molded by the above-mentioned process retains a mirror surface state, with no mold pattern being transferred to the flat plate portion.
（ト）発明の効果
上述の如く本発明に依れば皿状のガラス基板を成型する
際に平板部には金型が当接しないため金型の表面模様が
転写されることがなく、従来の如く表面精度の極めて高
い金型や成型後の研磨工程を必要とせず番こ表面精度の
高いガラス容器が得られる。(G) Effects of the Invention As described above, according to the present invention, when molding a dish-shaped glass substrate, the mold does not come into contact with the flat plate portion, so the surface pattern of the mold is not transferred, and unlike conventional methods. A glass container with high surface precision can be obtained without requiring a mold with extremely high surface precision or a polishing process after molding.
第１図（イ）（ロ）は本発明の一実施例におけるガラス
容器の製造方法を示す図、第２図は平面型電子管の側断
面図、第３図（イ）（ロ）及び第４図は従来のガラス容
器の製造方法を示す図である。
（１）・・・第１ガラス基板、（２）・・・第２ガラス
基板、（２ａ ）−’−平板部、（２ｂ）−・・鍔部、
（２Ｃ）−・・側壁部、（８）（９） ・・・挾持金型
、ＱＯ）−・・雄型、（１０ａ）（１０り −・・突部
、（１０ｂ）−・・凹所、（１０Ｃ）（１０ｃ）・・・
ノズル、αＤ・・・雌型、（１１１）（１１り ・・・
ノズル。Figures 1 (a) and (b) are diagrams showing a method for manufacturing a glass container in one embodiment of the present invention, Figure 2 is a side sectional view of a flat electron tube, and Figures 3 (a) and (b) and 4. The figure shows a conventional method for manufacturing a glass container. (1)...First glass substrate, (2)...Second glass substrate, (2a)-'-flat plate portion, (2b)--flange portion,
(2C) --- Side wall part, (8) (9) --- Holding mold, QO) --- Male mold, (10a) (10ri ---- protrusion, (10b) --- recess , (10C) (10c)...
Nozzle, αD...Female type, (111) (11ri...
nozzle.
Claims (1)
る皿状のガラス容器の製造方法において、前記ガラス容
器の出発材料である平板状ガラスを軟化温度以上に加熱
した後、前記平板状ガラスのうち少なくとも後に平板部
となる部分と成型金型とを非接触に保ちつつ前記平板状
ガラスを加圧成型して前記皿状のガラス容器を得ること
を特徴とするガラス容器の製造方法。(1) In a method for manufacturing a dish-shaped glass container comprising a flat plate part, a flange part, and a side wall part connecting the two, after heating the flat glass serving as the starting material of the glass container to a temperature higher than the softening temperature, the flat glass container A method for manufacturing a glass container, characterized in that the plate-shaped glass is pressure-molded while keeping at least a portion of the plate-shaped glass that will later become a flat plate portion and a molding die in a non-contact manner to obtain the plate-shaped glass container. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10638485A JPS61281031A (en) | 1985-05-17 | 1985-05-17 | Production of glass container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10638485A JPS61281031A (en) | 1985-05-17 | 1985-05-17 | Production of glass container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61281031A true JPS61281031A (en) | 1986-12-11 |
Family
ID=14432208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10638485A Pending JPS61281031A (en) | 1985-05-17 | 1985-05-17 | Production of glass container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61281031A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62202446A (en) * | 1986-02-28 | 1987-09-07 | Matsushita Electric Ind Co Ltd | Vacuum container for image display device |
| WO2017095767A1 (en) * | 2015-11-30 | 2017-06-08 | Corning Incorporated | Method and system for making articles from preformed materials |
-
1985
- 1985-05-17 JP JP10638485A patent/JPS61281031A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62202446A (en) * | 1986-02-28 | 1987-09-07 | Matsushita Electric Ind Co Ltd | Vacuum container for image display device |
| WO2017095767A1 (en) * | 2015-11-30 | 2017-06-08 | Corning Incorporated | Method and system for making articles from preformed materials |
| US20180370839A1 (en) * | 2015-11-30 | 2018-12-27 | Corning Incorporated | Method and system for making articles from preformed materials |
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