JPH0459627A - Production of silica glass - Google Patents

Production of silica glass

Info

Publication number
JPH0459627A
JPH0459627A JP16737390A JP16737390A JPH0459627A JP H0459627 A JPH0459627 A JP H0459627A JP 16737390 A JP16737390 A JP 16737390A JP 16737390 A JP16737390 A JP 16737390A JP H0459627 A JPH0459627 A JP H0459627A
Authority
JP
Japan
Prior art keywords
water
gel
silica glass
amount
aging
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
Application number
JP16737390A
Other languages
Japanese (ja)
Inventor
Masaki Takei
武居　正樹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP16737390A priority Critical patent/JPH0459627A/en
Publication of JPH0459627A publication Critical patent/JPH0459627A/en
Pending legal-status Critical Current

Links

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

PURPOSE:To obtain silica glass prevented from crack development by water substitution as well as aging within a specified temperature range. CONSTITUTION:When the objective silica glass is to be produced through a sol-gel process using silica fine particles, the silica particles is aged at 40-50 deg.C along with water substitution. This results in the amount of water substituted nearly double that in the case at normal temperatures, leading to producing a tightened gel, thus obtaining a dry gel free from crack development during drying.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、シリカ微粒子を用いたゾルゲル法による石英
ガラスの製造工程における、熟成方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a maturing method in a quartz glass manufacturing process by a sol-gel method using silica fine particles.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

前述の従来技術では、ゾルゲル法による石英ガラスの製
造方法の中で、乾燥中にクラックの発生のため、歩留り
も上がらないことが問題であった。そこで本発明におい
ては、 １）乾燥中にクラックの発生しない熟成方法を可能可さ
せ、 ２）効率よく石英ガラスを造り、 ６）必然的にコストダウンを計る。In the above-mentioned conventional technology, there was a problem in that the yield was not increased due to the generation of cracks during drying in the silica glass manufacturing method using the sol-gel method. Therefore, the present invention aims to: 1) enable a ripening method that does not generate cracks during drying, 2) efficiently produce quartz glass, and 6) necessarily reduce costs.

・・・・・・・・・・・・等の課題を設定し、新規なゾ
ルゲル法の製造方法を模索して、新しいガラス製品を提
供する事を目的とする。The purpose is to provide new glass products by setting the following issues and exploring new sol-gel manufacturing methods.

〔課題を解決するための手段〕[Means to solve the problem]

本発明によるガラスの製造方法は、熟成時に高温熟成を
し、同時に水置換をする事を特徴とする〔作用〕 本発明の上記の方法によれば、高温で熟成を進ませると
同時に、高温で水置換を実施するため、二工程を一工程
で済むうえ、高温の水置換なので反応速度が早（、効率
が良い。The method for producing glass according to the present invention is characterized by aging at a high temperature and replacing water at the same time. [Function] According to the above method of the present invention, aging is carried out at a high temperature and at the same time at a high temperature. Since water replacement is carried out, two steps can be reduced to one step, and since the water is replaced at a high temperature, the reaction rate is fast (and efficient).

〔実施例〕〔Example〕

第１図は、本発明による実施例のグラフである。 FIG. 1 is a graph of an embodiment according to the present invention.

横軸に経過時間をとり、縦軸に水置換量をとっである。The elapsed time is plotted on the horizontal axis, and the amount of water replaced is plotted on the vertical axis.

Ａは、常温で水置換した時の水置換量で、Ｂは、高温の
水で水置換した場合の水置換量である。実験の結果では
、４０度から５０度の範囲で水置換量は、常温に比べて
約倍近い量の水置換がなされている。この量は、温度に
よって著しく異なる。水置換は、アルコール分と水が置
き換わるのでその時間があまり早過ぎると、その急激な
速度によりゲルに衝撃となって、クラック引き起こす要
因となる。従って、余り高温の水を用いて置換するとク
ラックを引き起こすケースが多く観られる。実験の結果
では４０度から５０度の範囲だと効率も良（、クラック
も起きない。しかしここには詳細は記さないが、使用す
る水の量もファクターとなっているので注意を要する。A is the amount of water replaced when water is replaced at room temperature, and B is the amount of water replaced when water is replaced with high temperature water. According to the results of experiments, the amount of water replaced in the range of 40 degrees to 50 degrees is approximately twice as much as that at room temperature. This amount varies significantly depending on temperature. In water displacement, the alcohol content and water are replaced, so if the time is too fast, the rapid speed will impact the gel and cause cracks. Therefore, if too high temperature water is used for replacement, cracks often occur. Experimental results show that the temperature is between 40 degrees and 50 degrees for good efficiency (and no cracks occur.However, although I will not go into details here, the amount of water used is also a factor, so care must be taken).

又、４０度Ｃから５０度Ｃだと熟成も十分なされるため
、ゲルが引き締まって、乾燥中でクラックの生じるのを
防いで（れる。このように高温中での水置換は、工程時
間を短縮すると共に条件を所定に設定することにより、
クラックのない乾燥ゲルが得られる。Also, at 40 to 50 degrees C, maturation is sufficient, which tightens the gel and prevents cracks from forming during drying.In this way, water replacement at high temperatures reduces the process time. By shortening it and setting certain conditions,
A dry gel without cracks is obtained.

〔発明の効果〕〔Effect of the invention〕

以上述べたように、シリカ微粒子を用℃・たゾルゲル法
で、高温熟成と水置換を併合する事により１）乾燥中の
クラックの発生を防止した対策となり、 ２）しかも熟成と水置換を同時にするため効率も良く、 ５）そして、コストダウンとなった。As mentioned above, by combining high-temperature aging and water replacement with the sol-gel method using silica fine particles at °C, it is possible to 1) prevent the occurrence of cracks during drying, and 2) to simultaneously perform aging and water replacement. 5) It also reduced costs.

−・−・・・・・・・等の効果をもたらした。−・−・・・・・It brought about effects such as.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本発明の実施例の図で高温熟成時の水置換量
と経過時間のグラフである。 Ａ：常温での水置換量 Ｂ：高温での水置換量 第１図FIG. 1 is a diagram of an example of the present invention, and is a graph of the amount of water replaced and the elapsed time during high temperature aging. A: Amount of water replaced at room temperature B: Amount of water replaced at high temperature Figure 1

Claims (2)

【特許請求の範囲】[Claims] （１）シリカ微粒子を用いたゾル−ゲル法によるガラス
の製造方法において、高温熟成と水置換を併合する事を
特徴とする石英ガラスの製造方法。(1) A method for producing quartz glass characterized by combining high-temperature aging and water displacement in a method for producing glass by a sol-gel method using fine silica particles. （２）熟成温度を４０度Ｃから５０度Ｃの範囲でする事
を特徴とする請求項１記載の石英ガラスの製造方法。(2) The method for producing quartz glass according to claim 1, characterized in that the aging temperature is in the range of 40 degrees Celsius to 50 degrees Celsius.
JP16737390A 1990-06-26 1990-06-26 Production of silica glass Pending JPH0459627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16737390A JPH0459627A (en) 1990-06-26 1990-06-26 Production of silica glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16737390A JPH0459627A (en) 1990-06-26 1990-06-26 Production of silica glass

Publications (1)

Publication Number Publication Date
JPH0459627A true JPH0459627A (en) 1992-02-26

Family

ID=15848513

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16737390A Pending JPH0459627A (en) 1990-06-26 1990-06-26 Production of silica glass

Country Status (1)

Country Link
JP (1) JPH0459627A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6205060B1 (en) 1998-06-09 2001-03-20 Fuji Photo Film Co., Ltd. Method of controlling a production process and recycle of photo film cartridge or lens-fitted photo film unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6205060B1 (en) 1998-06-09 2001-03-20 Fuji Photo Film Co., Ltd. Method of controlling a production process and recycle of photo film cartridge or lens-fitted photo film unit

Similar Documents

Publication Publication Date Title
JPH02289416A (en) Production of low silanol silica
JPH0459627A (en) Production of silica glass
JPS60138915A (en) Furnace core tube of silicon carbide
JPH04357106A (en) Purifued silicon and its production
JPH042622A (en) Silica glass manufacturing method
JPH0459624A (en) Silica glass manufacturing method
JPH042624A (en) Production of quartz glass
JPS60108325A (en) Production of glass
Yoshimoto et al. Elastic Properties and the Short- and Medium-Range Structures of Lead Silicate Glasses
JPH0328382B2 (en)
JPH03247516A (en) Silica glass manufacturing method
JPH01119524A (en) Production of silica glass
JPS6227352A (en) Production of porous glass film
JPH01138137A (en) Production of silica glass
JPH1171189A (en) Curing of cement product
JPH05323131A (en) Method for manufacturing optical fiber preform
JPS6287491A (en) Ruby single crystal manufacturing method
JPS6144727A (en) Production of glass for optical fiber
SU840080A1 (en) Method of producing preliminary coating of kinescopes
JPH0354127A (en) Production of silica glass
JPH03247532A (en) Production of base material for optical fiber
JPS6054937A (en) Manufacture of preform rod
JPH0259446A (en) Production of silica glass
JPS6140126B2 (en)
SU1265144A1 (en) Method of producing silicon dioxide hydrosol