JPS58190829A - Manufacture of watch glass - Google Patents
Manufacture of watch glassInfo
- Publication number
- JPS58190829A JPS58190829A JP6986082A JP6986082A JPS58190829A JP S58190829 A JPS58190829 A JP S58190829A JP 6986082 A JP6986082 A JP 6986082A JP 6986082 A JP6986082 A JP 6986082A JP S58190829 A JPS58190829 A JP S58190829A
- Authority
- JP
- Japan
- Prior art keywords
- quartz glass
- gel
- watch glass
- quartz
- manufacture
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000011521 glass Substances 0.000 title claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 19
- 239000010453 quartz Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- -1 alkyl silicate Chemical compound 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000000499 gel Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 6
- 238000003980 solgel method Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/12—Other methods of shaping glass by liquid-phase reaction processes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は石英製時計皿の製造法に係わり、更に詳しくは
、アルキルシリケートを原料とし、該原料を加水分解し
、加水分解物を適当な容器にいれ、乾燥することにより
、乾燥ゲルの成形体とし、該成形体を焼成することによ
シ時計皿を得る石英ガラス製時計皿の製造法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a quartz watch glass, and more specifically, it involves using an alkyl silicate as a raw material, hydrolyzing the raw material, putting the hydrolyzate in a suitable container, and drying it. The present invention relates to a method for manufacturing a quartz glass watch glass, in which a watch glass is obtained by forming a molded body of dry gel and firing the molded body.
最近の先端技術である、半導体技術、光学材料技術にお
いては、わずかの不純物の影響も無視しえなくなってい
る。又、分析技術の進歩によシ、１−
不純物の検出も容易で、かつ感度も良くなっている。In recent cutting-edge technologies such as semiconductor technology and optical material technology, even the slightest influence of impurities cannot be ignored. Furthermore, advances in analytical technology have made it easier to detect impurities and have improved sensitivity.
このような先端技術、あるいは分析技術の分野では長年
石英ガラス製品がその耐熱性と耐薬品性等の性質故に重
要な地位を占めており、年々その需要も増加の傾向にあ
る。In the field of advanced technology or analysis technology, quartz glass products have long held an important position due to their heat resistance and chemical resistance, and the demand for them has been increasing year by year.
従来の石英ガラス製品は天然の水晶又はけい砂を原料と
して、原料から不純物を除いた石英粉末全溶融してイン
ゴットとし、スライス等を経て得るか、石英粉末を型に
いれ、カーボン電極をさしこみ、通電して、溶融成形し
て得ている。Conventional quartz glass products are made from natural quartz or silica sand, which is obtained either by removing impurities from the raw material, completely melting the quartz powder into an ingot, and slicing it, or by putting the quartz powder in a mold and inserting carbon electrodes into it. It is obtained by applying electricity and melting and molding.
しかし、従来のこの方法には、処理温度が高く、粘度が
高く、気化体であるため扱いに＜因、あるいは、純粋に
するために多くの工ａｔ−経るため高価になる等の欠点
がある。However, this conventional method has drawbacks such as high processing temperature, high viscosity, difficulty in handling since it is a vaporized product, and high cost due to the many steps required to purify it. .
最近この溶融法に対して、ゾル−ゲル法による方法が提
案され、色々研究されている。Recently, a method using a sol-gel method has been proposed for this melting method, and various studies have been conducted.
この方法の％徴は原料の精製が容易であ）、溶融法に比
べて、はるかに低い温度で石英ガラスを得ることができ
ることである。The characteristics of this method are that the raw materials are easy to purify) and that quartz glass can be obtained at a much lower temperature than the melting method.
２−
このような特徴故に省エネルギータイプの石英ガラスの
製造法として注目されている。2- Because of these characteristics, this method is attracting attention as an energy-saving method for producing quartz glass.
このゾル−ゲル法による石英ガラスの製造法の概略を述
べると以下の通力である。The outline of the method for producing quartz glass using the sol-gel method is as follows.
まず適当なアルキルシリケートをエタノール等の溶媒に
溶かす。次にこの溶液に蒸留水と塩酸等の鉱酸を加え、
攪拌混合し、加水分解を行なう。First, a suitable alkyl silicate is dissolved in a solvent such as ethanol. Next, add distilled water and a mineral acid such as hydrochloric acid to this solution.
Stir to mix and perform hydrolysis.
次にこの加水分解物を適当な容器に移し、溶媒を蒸発さ
せ乾燥ゲルとする。続いてこの乾燥ゲルを炉にいれ焼成
することにより石英ガラスを得ることができる。The hydrolyzate is then transferred to a suitable container and the solvent is evaporated to form a dry gel. Subsequently, this dried gel is placed in a furnace and fired to obtain quartz glass.
これがゾル−ゲル法による石英ガラスの製造法であるが
、上述のように非常に簡単な方法である。This is a method for producing quartz glass using the sol-gel method, and as mentioned above, it is a very simple method.
しかし、この方法にも欠点があ夛、この方法による石英
ガラス製品は市販されるに到っていない。However, this method also has many drawbacks, and quartz glass products produced by this method have not been commercially available.
この方法の主な欠点は、大きな乾燥ゲルができないこと
と、任意の形状ができなく、そり等がでやすいことであ
る。The main drawbacks of this method are that it cannot produce large dried gels, cannot be formed into arbitrary shapes, and tends to warp.
本発明の目的はこのような欠点を克服するためになされ
たものであり、ゾル−ゲル法という省エ３−
ネルギータイプの石英ガラス製造法を利用し、この製造
法に適した石英ガラス製品を提供するためになされたも
のである。The purpose of the present invention was to overcome these drawbacks, and to utilize the sol-gel method, an energy-saving quartz glass manufacturing method, to produce quartz glass products suitable for this manufacturing method. It was made to provide.
本発明者はゾル−ゲル法による石英ガラスの研究中、こ
の方法が時計器の製造に非常に適した方法であることを
発見した。While researching quartz glass using the sol-gel method, the inventor discovered that this method is very suitable for manufacturing timepieces.
この発見の内容は次のとおりである。The details of this discovery are as follows.
従来のように単に底が平らの容器に加水分解物をいれ乾
燥ゲルを作ると、第１図に示すように乾燥ゲルは鞍型、
又はＵ字型に収縮変形して、常に一定の形状の乾燥ゲル
を得ることができなかった。If you simply put the hydrolyzate into a container with a flat bottom and make a dry gel as in the past, the dried gel will have a saddle shape, as shown in Figure 1.
Otherwise, it was shrinking and deforming into a U-shape, making it impossible to obtain a dry gel with a constant shape.
しかし、色々研究しているうちに、容器の底にわずかの
曲率をつけると、中心がへこみ、囲シが均一に収縮し、
乾燥ゲルが時計器のような形状になることがわかった。However, while doing various research, I discovered that if you add a slight curvature to the bottom of the container, the center will become depressed and the enclosure will shrink uniformly.
The dried gel was found to have a clock-like shape.
この現象を時計器の製造法に結びつけたのが本発明であ
る。The present invention connects this phenomenon to a method for manufacturing timepieces.
この方法によれば高温処理も必要でなく、特別の装置も
必要でなしので、省エネルギータイプの非常圧優れた石
英ガラス製時計皿の製造法である。This method does not require high-temperature treatment or special equipment, so it is an energy-saving method for manufacturing a quartz glass watch glass with excellent emergency pressure.
４− 次に本発明の態様を実施例により以下に述べる。4- Next, aspects of the present invention will be described below using examples.
実施例１
フラスコにエタノール５．４ｍ１＝、エチルシリケート
４０．２Ｆ 、 ０．Ｉ Ｎ塩酸３６ｍｋをとシ、３時
間攪拌混合することによシ、エチルシリケートの加水分
解を行なった。Example 1 In a flask, 5.4 ml of ethanol, 40.2 F of ethyl silicate, 0. Ethyl silicate was hydrolyzed by adding 36 mk of IN hydrochloric acid and stirring and mixing for 3 hours.
続いてこの混合物１２ Ｆを底の中心がわずかにもシあ
がった、直径５０ＩＩＪのテフロンシャーレいれた。Subsequently, this mixture 12F was placed in a Teflon Petri dish with a diameter of 50 IIJ and whose bottom center was slightly raised.
次にこのシャーレをピンホールが１０個あいたポリエチ
レン製の板でふたをし、７０℃の恒温槽に１週間放置し
た。Next, this Petri dish was covered with a polyethylene plate with 10 pinholes, and left in a constant temperature bath at 70° C. for one week.
放置後、シャーレから乾燥ゲルをと９出したところ１１
ｍに収縮していた。又、この乾燥ゲルは時計器の形状
をしていた。After leaving it for a while, I took out the dried gel from the petri dish and found 11
It had shrunk to m. Also, this dried gel had the shape of a clock.
次にこの乾燥ゲルをルツボ炉にいれ１時間あたり、１３
℃の昇温速度で１０００℃まで昇温し、石英ガラスとし
た。Next, this dry gel was put into a crucible furnace and was heated at 13
The temperature was raised to 1000°C at a heating rate of 100°C to obtain quartz glass.
最終の石英ガラスの大きさは約２５１１５１であシ、形
状は時計器と同様で、時計器として使用できるものであ
った。The final size of the quartz glass was approximately 251,151 mm, the shape was similar to that of a clock, and it could be used as a clock.
５−
尚、石英ガラスになっていることは赤外線吸収スペクト
ル、Ｘ線回折、比重、硬度等によシ確認した。5- The fact that it is made of quartz glass was confirmed by infrared absorption spectrum, X-ray diffraction, specific gravity, hardness, etc.
実施例２
実施例１と同様にして、直径】００龍のテフロンシャー
レを用い、直径５０＆１１の時計器を得た。Example 2 In the same manner as in Example 1, a timepiece with a diameter of 50&11 was obtained using a Teflon petri dish with a diameter of 00.
以上述べたように本発明の方法によれば、簡単な設備、
装置により、非常に低温で石英製時計皿を得ることがで
き、この方法は簡単で優れた方法である。As described above, according to the method of the present invention, simple equipment,
The device makes it possible to obtain quartz watch glasses at very low temperatures, and this method is simple and excellent.
このような方法により得られる石英製時計皿は安価でで
きるので、従来高価なため用いられなかった分野にも用
いられ、その耐熱性、耐薬品性等の偉力を発揮するもの
である。Since the quartz watch glass obtained by this method can be produced at a low cost, it can be used in fields where it was previously not used due to its high price, and it exhibits great properties such as heat resistance and chemical resistance.
第１図は従来の方法により得られる乾燥ゲルの概観を示
す図である。
以 上
出願人 株式会社諏訪精再舎
代理人 弁理士最 上 務
６−FIG. 1 is a diagram showing an overview of a dried gel obtained by a conventional method. Applicant Suwa Seisha Co., Ltd. Agent Patent Attorney Mogami 6-
Claims (1)
料とし、該原料を加水分解処理した後、乾燥ゲルの成形
体を得、しかる後焼成することを特徴とする時計皿の製
造法。1. A method for manufacturing a quartz watch glass, which comprises using an alkyl silicate as a raw material, hydrolyzing the raw material, obtaining a dried gel molding, and then firing it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6986082A JPS58190829A (en) | 1982-04-26 | 1982-04-26 | Manufacture of watch glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6986082A JPS58190829A (en) | 1982-04-26 | 1982-04-26 | Manufacture of watch glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58190829A true JPS58190829A (en) | 1983-11-07 |
Family
ID=13414976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6986082A Pending JPS58190829A (en) | 1982-04-26 | 1982-04-26 | Manufacture of watch glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58190829A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201929A (en) * | 1990-03-09 | 1993-04-13 | Nippon Sheet Glass Co., Ltd. | Apparatus for producing flakes of glass |
-
1982
- 1982-04-26 JP JP6986082A patent/JPS58190829A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5201929A (en) * | 1990-03-09 | 1993-04-13 | Nippon Sheet Glass Co., Ltd. | Apparatus for producing flakes of glass |
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