Title:
SILICA GLASS BODY MANUFACTURING METHOD AND HEATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/080282
Kind Code:
A1
Abstract:
This silica glass body manufacturing method comprises the steps of: preheating a porous silica glass body; and placing the preheated porous silica glass body in a resonator, which resonates microwaves having a frequency band of 1-30 GHz, to microwave-heat the porous silica glass body. Additives other than silicon and oxygen are added to at least a portion of the porous silica glass body. In the preheating step, the porous silica glass body is preheated to have a temperature higher than or equal to the glass transition temperature of the additive portion of porous silica glass to which the additives have been added. In the microwave-heating step, the porous silica glass to which the additives have been added is microwave-heated.
Inventors:
ISHIKAWA SHINJI (JP)
HARUNA TETSUYA (JP)
SATO SHIN (JP)
MORITA KEISEI (JP)
HARUNA TETSUYA (JP)
SATO SHIN (JP)
MORITA KEISEI (JP)
Application Number:
PCT/JP2023/036784
Publication Date:
April 18, 2024
Filing Date:
October 10, 2023
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
C03B20/00; C03B8/04; H05B6/80
Foreign References:
| JP2005053740A | 2005-03-03 | |||
| JPS6369730A | 1988-03-29 | |||
| JPS62123036A | 1987-06-04 | |||
| JP2004210548A | 2004-07-29 | |||
| CN104817264A | 2015-08-05 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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