Title:
METHOD FOR PRODUCING GLASS PANEL UNIT
Document Type and Number:
WIPO Patent Application WO/2020/026624
Kind Code:
A1
Abstract:
The present disclosure provides a method for producing a glass panel unit intended to make it less likely for gas to remain in the vacuum space. The method for producing a glass panel unit includes an assembly step, a joining step, an exhaust step, a sealing step, and an activation step. The joining step is a step for melting a peripheral wall (410) in a firing furnace of a first predetermined temperature (Tm) and hermetically joining a first glass plate (1) and a second glass plate (2) by the peripheral wall (410) after melting. The exhaust step is a step for evacuating an internal space (510) via an exhaust port (50) in the firing furnace to create a vacuum space (52). The sealing step is a step for melting a hole sealing material (42) or an exhaust pipe (51) by locally heating at a temperature higher than a second predetermined temperature (Ts) to obtain an unfinished product (10) by sealing the exhaust port (50). The activation step is a step for obtaining a glass panel unit (100) by activating a gas adsorbent (44) after the sealing step.
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Inventors:
ABE HIROYUKI
URIU EIICHI
HASEGAWA KAZUYA
ISHIBASHI TASUKU
NONAKA MASATAKA
SHIMIZU TAKESHI
ISHIKAWA HARUHIKO
URIU EIICHI
HASEGAWA KAZUYA
ISHIBASHI TASUKU
NONAKA MASATAKA
SHIMIZU TAKESHI
ISHIKAWA HARUHIKO
Application Number:
PCT/JP2019/024182
Publication Date:
February 06, 2020
Filing Date:
June 19, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
C03C27/06; E06B3/66
Domestic Patent References:
| WO2017170076A1 | 2017-10-05 | |||
| WO2016017709A1 | 2016-02-04 | |||
| WO2019004135A1 | 2019-01-03 |
Foreign References:
| JP2003507845A | 2003-02-25 | |||
| JP2003212610A | 2003-07-30 | |||
| JP2003212610A | 2003-07-30 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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