To provide a technology capable of producing efficiently a high-quality glass article which can be utilized for a glass building material requiring high dimensional accuracy.
This glass article production method for producing a glass article containing sintered glass as a main component by heat-treating a glass raw material includes: a preparation step for forming a heat-resistant form 100 including a filling space by placing in the disconnected state a plurality of independent heat-resistant frame bodies 20 used as side frames on the surface of a heat-resistant substrate 10 used as a bottom frame; a filling step for filling the glass raw material in the filling space; a sintering step for heat-treating the heat-resistant form 100 including the glass raw material at a higher temperature than a softening point of the glass raw material; and a recovery step for extracting a glass article from the heat-resistant form 100 after cooling.
HAMASAWA TAKAYUKI
YAMADA AKIHITO
Takashi Hamano
Shinji Tanaka