Title:
MANUFACTURING METHOD FOR GLASS ARTICLE AND MANUFACTURING DEVICE FOR GLASS ARTICLE
Document Type and Number:
WIPO Patent Application WO/2021/002260
Kind Code:
A1
Abstract:
This manufacturing method for a glass article is provided with: a melting step for producing a molten glass Gm in a melting furnace 1; a state adjustment step for adjusting, by using a state adjustment furnace 6, the state of the molten glass Gm produced in the melting furnace 1; and a molding step for molding the molten glass Gm, the state of which has been adjusted by the state adjustment furnace 6, into a glass article by using a molding apparatus 3. The state adjustment furnace 6 is provided with: a cylindrical main body part 11 extending in the vertical direction; a inflow opening 12 provided in an upper section of the main body part 11; an outflow opening 13 provided to a lower section of the main body part 11; an upper electrode 15, a middle section electrode 16, and a lower electrode 17 which are respectively provided to an upper section, a middle section, and a lower section of the main body part 11. In the state adjustment step, an electric current is applied between the upper electrode 15 and the middle section electrode 16 and an electric current is applied between the middle section electrode 16 and the lower electrode 17.
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Inventors:
TAMAMURA SHUSAKU (JP)
Application Number:
PCT/JP2020/024832
Publication Date:
January 07, 2021
Filing Date:
June 24, 2020
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO (JP)
International Classes:
C03B5/24; C03B5/235
Domestic Patent References:
| WO2012091133A1 | 2012-07-05 |
Foreign References:
| CN203683349U | 2014-07-02 | |||
| JPS5128107A | 1976-03-09 | |||
| JPH0720290A | 1995-01-24 | |||
| JPH04367519A | 1992-12-18 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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