JPS6356170B2 - - Google Patents
Info
- Publication number
- JPS6356170B2 JPS6356170B2 JP16330984A JP16330984A JPS6356170B2 JP S6356170 B2 JPS6356170 B2 JP S6356170B2 JP 16330984 A JP16330984 A JP 16330984A JP 16330984 A JP16330984 A JP 16330984A JP S6356170 B2 JPS6356170 B2 JP S6356170B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- mold
- plate glass
- convex curved
- curved surface
- 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
- 239000011521 glass Substances 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000006060 molten glass Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- 239000005357 flat glass Substances 0.000 description 19
- 238000010438 heat treatment Methods 0.000 description 9
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000005338 frosted glass Substances 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 235000015250 liver sausages Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0252—Re-forming glass sheets by bending by gravity by gravity only, e.g. sagging
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/0026—Re-forming shaped glass by gravity, e.g. sagging
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)
Description
【発明の詳細な説明】
発明の目的
（産業上の利用分野）
この発明は、例えば上面に拡大鏡としての凸状
レンズを一体形成してなるガラス製ペーパーウエ
イトのように、外面に滑らかな凸状の曲面を有す
るガラス製品の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Purpose of the Invention (Field of Industrial Application) The present invention is directed to a paper weight with a smooth convex outer surface, such as a glass paper weight having a convex lens as a magnifying glass integrally formed on the upper surface. The present invention relates to a method of manufacturing a glass product having a curved surface.
（従来の技術）
従来のこの種のガラス製品は、主に粉末状ガラ
スを成形用型内に詰め込み、これを加熱炉で加熱
して溶融させた後、徐冷却して型から取り出すと
いう、いわゆるパート・ド・ヴエール法にて製造
されていた。(Prior art) Conventional glass products of this type are mainly made by packing powdered glass into a mold, heating it in a heating furnace to melt it, and then gradually cooling it and removing it from the mold. Manufactured using the pate de veère method.
（発明が解決しようとする問題点）
この従来の製造方法は溶融したガラスを型内面
に接しさせて作るため、これによつて作られるガ
ラス製品の表面は粗雑ですりガラスのような状態
となつている。したがつて、前記凸レンズ付きペ
ーパーウエイトのように滑らかな表面を得るため
には、成形後に表面に研摩加工を施す必要があつ
て、作業が至極煩雑であつた。(Problems to be Solved by the Invention) In this conventional manufacturing method, molten glass is made in contact with the inner surface of a mold, so the surface of the glass product made by this method is rough and has a frosted-glass appearance. There is. Therefore, in order to obtain a smooth surface like the paper weight with a convex lens, it is necessary to polish the surface after molding, which is extremely complicated.
発明の構成
（問題点を解決するための手段）
この発明は、研摩加工等の煩雑な作業を全く必
要とせず、外面に滑らかな凸状の曲面を有するガ
ラス製品を容易に製造できるようにしたものであ
る。Structure of the Invention (Means for Solving the Problems) This invention makes it possible to easily manufacture glass products having a smooth convex curved surface on the outer surface without requiring any complicated work such as polishing. It is something.
そのために、この発明の製造方法では、上面に
孔又は凹部を有する型体上に板ガラスを載置して
それらを加熱し、板ガラスの表面から溶融したガ
ラスが型体の孔又は凹部内に所定量垂れ下がつた
後、その板ガラスを冷却するようにしている。 For this purpose, in the manufacturing method of the present invention, a plate glass is placed on a mold having holes or recesses on the upper surface and heated, and a predetermined amount of molten glass from the surface of the glass plate is deposited in the holes or recesses of the mold. After hanging down, the plate glass is cooled down.
（実施例）
以下、この発明の一実施例を図面に従つて詳細
に説明する。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
さて、この実施例に使用される型体１は第１図
に示すように耐熱材によりほぼ平板状に形成さ
れ、その上面中央部には、この実施例の場合平面
ほぼ円形状の孔２が貫通形成されている。そし
て、この実施例では、まず前記孔２の直径とほぼ
同一寸法程度の板厚を有する１枚の板ガラス３が
第１図に鎖線で示すように型体１上に載置され、
この状態で加熱炉内に入れられて、板ガラス３の
溶融温度よりも若干低い700℃程度の温度まで約
６時間程かけて加熱される。 Now, as shown in FIG. 1, the mold body 1 used in this embodiment is formed of a heat-resistant material into a substantially flat plate shape, and in the center of its upper surface, a hole 2, which in this embodiment is substantially circular in plan, is formed. It is formed through. In this embodiment, first, a sheet of glass 3 having a thickness approximately equal to the diameter of the hole 2 is placed on the mold 1 as shown by the chain line in FIG.
In this state, it is placed in a heating furnace and heated to a temperature of about 700° C., which is slightly lower than the melting temperature of the plate glass 3, over about 6 hours.
その後、加熱炉の加熱温度が板ガラス３の溶融
温度より若干高い850℃付近に上昇されて10分程
度加熱されると、第１図に実線で示すように、板
ガラス３の下面から溶融したガラスが自重で型体
１の孔２内に所定量垂れ下がつて、型体１の孔２
の範囲において凸状の曲面４が形成される。その
後、前記板ガラス３を型体とともに加熱炉内から
取り出して、常温まで10時間程度自然冷却する
と、板ガラス３の凸状曲面４が硬化して滑らかな
表面のレンズ状の凸部が形成される。 Thereafter, when the heating temperature of the heating furnace is raised to around 850°C, which is slightly higher than the melting temperature of the plate glass 3, and the heating is continued for about 10 minutes, the molten glass flows out from the bottom surface of the plate glass 3, as shown by the solid line in Figure 1. The hole 2 of the mold body 1 hangs down by a predetermined amount due to its own weight, and the hole 2 of the mold body 1
A convex curved surface 4 is formed in the range. Thereafter, the plate glass 3 is taken out from the heating furnace together with the mold and allowed to naturally cool to room temperature for about 10 hours, whereby the convex curved surface 4 of the plate glass 3 is hardened and a lens-shaped convex portion with a smooth surface is formed.
従つて、前記板ガラス３の凸状曲面４を研摩す
る必要は全くなく、第１図に示す製造時の状態か
ら上下逆にして凸状曲面４を上面側へ突設させる
ことにより、この製品をペーパーウエイトとして
使用することができるとともに、凸状曲面４部分
を拡大鏡として利用することもできる。 Therefore, there is no need to polish the convex curved surface 4 of the plate glass 3, and this product can be manufactured by turning the manufacturing state shown in FIG. 1 upside down and making the convex curved surface 4 protrude upward. It can be used as a paper weight, and the four convex curved parts can also be used as a magnifying glass.
次に、この発明の別の実施例を第２図に従つて
説明すると、この実施例では板厚の薄い４枚の板
ガラス５が使用され、第２図に鎖線で示すように
それらの板ガラス５が積層状態で型体１上に載置
されて、前記実施例と同様に加熱した後冷却され
る。それにより、各板ガラス５が互いに溶融接合
されて、１つの肉厚なガラス製品が形成されると
ともに、板ガラス５の下面から溶融したガラスが
型体１の孔２内に垂れ下がつて、外面の滑らかな
凸状の曲面４が形成される。 Next, another embodiment of the present invention will be described with reference to FIG. 2. In this embodiment, four thin glass plates 5 are used, and as shown by chain lines in FIG. are placed in a stacked state on the mold body 1, heated and then cooled in the same manner as in the previous embodiment. As a result, each plate glass 5 is melted and bonded to each other to form one thick glass product, and the molten glass hangs down from the bottom surface of the plate glass 5 into the hole 2 of the mold body 1 to form a thick glass product. A smooth convex curved surface 4 is formed.
尚、前記各実施例においては、第１，２図に示
すように凸状曲面４の突出形成に伴つて、板ガラ
ス３，５の上面に円弧状の凹所６が生じるが、こ
の凹所６の深さは板ガラス３，５の単独又は積層
板厚を型体１上の孔２の直径寸法よりも大きく設
定するほど小さくなる。又、第３図に示すよう
に、複数の板ガラス５を積層して加熱する際に、
板ガラス５間に凸状曲面４部分の突出量と同質量
程度の板ガラス片７を介在させて加熱すると、凸
状曲面４のガラス突出量がこの板ガラス片７によ
つて相殺されて、板ガラスの上面に凹所６が形成
されるのを防止することができる。 In each of the above embodiments, as shown in FIGS. 1 and 2, an arcuate recess 6 is formed on the upper surface of the glass plates 3 and 5 as the convex curved surface 4 protrudes. The depth becomes smaller as the thickness of the individual or laminated glass plates 3 and 5 is set larger than the diameter of the hole 2 on the mold body 1. Moreover, as shown in FIG. 3, when laminating and heating a plurality of glass plates 5,
When a plate glass piece 7 having the same mass as the protruding amount of the convex curved surface 4 is interposed between the plate glass 5 and heated, the protruding amount of the glass plate 7 of the convex curved surface 4 is offset by the plate glass piece 7, and the upper surface of the plate glass is It is possible to prevent the recess 6 from being formed.
尚、この発明は前記実施例のほかに、例えば上
面に溶融したガラスが内面に付着しない程度の凹
状のくぼみを有する型体を使用する等、任意に変
更して具体化することも可能である。 In addition to the embodiments described above, this invention can also be embodied with arbitrary changes, such as using a molded body having a concave recess on the upper surface to prevent molten glass from adhering to the inner surface. .
発明の効果
以上詳述したようにこの発明は、研摩加工等の
煩雑な作業を全く必要とせず、外面に滑らかな凸
状の曲面を有するガラス製品を容易に製造できる
という優れた効果を奏する。Effects of the Invention As detailed above, the present invention has the excellent effect of easily manufacturing a glass product having a smooth convex curved surface without requiring any complicated operations such as polishing.
またこの発明にあつては、加熱時間の長短、板
ガラスの厚さ、型体の孔の大きさにより形状、厚
みの異なる種々の曲面を得ることができる。 Further, in the present invention, various curved surfaces having different shapes and thicknesses can be obtained depending on the length of the heating time, the thickness of the plate glass, and the size of the holes in the mold.
また、板ガラスの厚みを厚くすれば、上面のへ
こみが小さくなり、接触レンズとして使用でき、
板ガラスの厚みが薄い場合には拡大鏡として使用
できる。 Also, if the thickness of the plate glass is increased, the dent on the top surface will be smaller, allowing it to be used as a contact lens.
If the plate glass is thin, it can be used as a magnifying glass.
第１図はこの発明を具体化したガラス製品の製
造方法の一実施例を示す縦断面図、第２図は同じ
く別の実施例を示す縦断面図、第３図はさらに別
の実施例を示す縦断面図である。
１……型体、２……孔、３……板ガラス、４…
…凸状曲面、５……板ガラス。
FIG. 1 is a vertical cross-sectional view showing one embodiment of a method for manufacturing glass products embodying the present invention, FIG. 2 is a vertical cross-sectional view showing another embodiment, and FIG. 3 is a longitudinal cross-sectional view showing yet another embodiment. FIG. 1... Mold body, 2... Hole, 3... Plate glass, 4...
...Convex curved surface, 5...Plate glass.
Claims (1)
を載置してそれらを加熱し、板ガラスの表面から
溶融したガラスが型体の孔又は凹部内に所定量垂
れ下がつた後、その板ガラスを冷却することを特
徴とする外面に滑らかな凸状の曲面を有するガラ
ス製品の製造方法。1 A glass plate is placed on a mold having holes or recesses on the upper surface and heated, and after a predetermined amount of molten glass hangs down from the surface of the glass plate into the hole or recess of the mold, the glass plate is heated. A method for manufacturing a glass product having a smooth convex curved surface on its outer surface, characterized by cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16330984A JPS6140828A (en) | 1984-08-02 | 1984-08-02 | Process for preparing glass article having smooth convex curved surface on the external surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16330984A JPS6140828A (en) | 1984-08-02 | 1984-08-02 | Process for preparing glass article having smooth convex curved surface on the external surface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6140828A JPS6140828A (en) | 1986-02-27 |
| JPS6356170B2 true JPS6356170B2 (en) | 1988-11-07 |
Family
ID=15771378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16330984A Granted JPS6140828A (en) | 1984-08-02 | 1984-08-02 | Process for preparing glass article having smooth convex curved surface on the external surface |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6140828A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19956654B4 (en) * | 1999-11-25 | 2005-04-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Process for structuring surfaces of micromechanical and / or microoptical components and / or functional elements made of vitreous materials |
| DE102011110166A1 (en) * | 2011-08-12 | 2013-02-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for structuring a glassy material consisting of surface substrate and optical component |
-
1984
- 1984-08-02 JP JP16330984A patent/JPS6140828A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6140828A (en) | 1986-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |