Title:
GLASS ARTICLE MANUFACTURING METHOD AND GLASS ARTICLE MANUFACTURING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/124801
Kind Code:
A1
Abstract:
This glass article manufacturing device 1 is provided with: a forming furnace 2 which forms a glass ribbon Gr with a downdraw method; a slow cooling furnace 3 which communicates with the lower part of the forming furnace 2 and gradually cools the glass ribbon Gr; a cooling unit 4 which communicates with the lower part of the slow cooling furnace 3 and cools the glass ribbon Gr; a forming and cooling chamber 6 inside of which the forming furnace 2 and the slow cooling furnace 3 are arranged; and a cooling chamber 7 inside of which the cooling unit 4 is arranged. The forming and cooling chamber 6 is provided with a first chamber 6a inside of which the top of the forming furnace 2 and the slow cooling furnace 3 are arranged, and a second chamber 6b inside of which the bottom of the slow cooling furnace 3 is arranged. The first chamber 6a is provided with a pressurizing mechanism 16 which pressurizes the inside of the first chamber 6a, and the second chamber 6b is provided with a discharge mechanism 20 which discharges the gas inside of the second chamber 6b to outside of the chamber.
Inventors:
OBA NAOKI (JP)
NAKAMURA TAKAHIDE (JP)
NAKAMURA TAKAHIDE (JP)
Application Number:
PCT/JP2020/043475
Publication Date:
June 24, 2021
Filing Date:
November 20, 2020
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03B25/12; C03B17/06
Domestic Patent References:
| WO2013001834A1 | 2013-01-03 |
Foreign References:
| JP2017154911A | 2017-09-07 | |||
| JP2009173525A | 2009-08-06 | |||
| JP2009173524A | 2009-08-06 | |||
| JP2008266098A | 2008-11-06 | |||
| JP2014125363A | 2014-07-07 | |||
| JP2017065988A | 2017-04-06 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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