Title:
MANUFACTURING METHOD AND MANUFACTURING DEVICE OF GLASS ARTICLE
Document Type and Number:
WIPO Patent Application WO/2024/084985
Kind Code:
A1
Abstract:
A manufacturing method of a glass article includes a melting step for melting a starting glass material Gr to obtain a molten glass Gm by heating with an electrode 3 that is immersed in the molten glass Gm contained in a melting furnace 1. The melting furnace 1 is provided with a heat insulating layer 8 for heat retention of the ceiling wall 1c of the melting furnace 1. In the melting step, a coating layer Gx, which includes a batch layer Ga and a bubble layer Gb and covers the liquid surface LS of the molten glass Gm, is formed, and, at the same time, the minimum temperature of the ceiling wall 1c is maintained at 600-1100°C by the heat insulating layer 8.
Inventors:
MABUCHI MINA (JP)
Application Number:
PCT/JP2023/036343
Publication Date:
April 25, 2024
Filing Date:
October 05, 2023
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03B5/027; C03B5/24
Domestic Patent References:
| WO2018110459A1 | 2018-06-21 |
Foreign References:
| JP2002211932A | 2002-07-31 | |||
| JP2003183031A | 2003-07-03 | |||
| JPH06329422A | 1994-11-29 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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