JPS5562816A - Strengthening method of glass article - Google Patents
Strengthening method of glass articleInfo
- Publication number
- JPS5562816A JPS5562816A JP13458678A JP13458678A JPS5562816A JP S5562816 A JPS5562816 A JP S5562816A JP 13458678 A JP13458678 A JP 13458678A JP 13458678 A JP13458678 A JP 13458678A JP S5562816 A JPS5562816 A JP S5562816A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- article
- liquid
- zone
- strain
- 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
- C03B27/00—Tempering or quenching glass products
- C03B27/02—Tempering or quenching glass products using liquid
- C03B27/022—Tempering or quenching glass products using liquid the liquid being organic, e.g. an oil
Abstract
PURPOSE: To enable continuous strengthening of a glass article by liquid cooling while preventing cracking due to a strain by heating the article to a temp. from the strain point to the softening point and passing the heated article through a cooling liquid vessel for strengthening by liquid cooling provided with an ultrasonic applying zone to quench the article by a predetermined method.
CONSTITUTION: Less than 3mm thick glass plate 7 is heated on movein stand 2 to a temp. from the strain point to the softening point, e.g. about 600W700°C in continuously heating furnace 1, and heated plate 7 is lowered into cooling vessel 3 from dropping outlet 8 with a hanger. In vessel 3 filled with a cooling liquid such as silicone oil or mineral oil, there is ultrasonic vibration zone 4 provided with several ultrasonic vibrators. Ultrasonic waves are perpendicularly applied to plate 7 in zone 4, and plate 7 is quenched to a temp. below the strain point during passing through zone 4(for 1W5sec). Thus, the cooling power of the weak liquid is increased, and continuous production of glass strengthened by cooling can be performed while preventing appearance of a strain. The product is taken out of outlet 9.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13458678A JPS5562816A (en) | 1978-11-02 | 1978-11-02 | Strengthening method of glass article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13458678A JPS5562816A (en) | 1978-11-02 | 1978-11-02 | Strengthening method of glass article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5562816A true JPS5562816A (en) | 1980-05-12 |
Family
ID=15131830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13458678A Pending JPS5562816A (en) | 1978-11-02 | 1978-11-02 | Strengthening method of glass article |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5562816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017146063A1 (en) * | 2016-02-26 | 2017-08-31 | 旭硝子株式会社 | Glass plate tempering method and tempered glass plate |
-
1978
- 1978-11-02 JP JP13458678A patent/JPS5562816A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017146063A1 (en) * | 2016-02-26 | 2017-08-31 | 旭硝子株式会社 | Glass plate tempering method and tempered glass plate |
| US10654742B2 (en) | 2016-02-26 | 2020-05-19 | AGC Inc. | Method for tempering glass plate, and tempered glass plate |
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