Method for producing opaque quartz glass

To facilitate production of large spherical opaque quartz glass ingots which have excellent heat ray shielding properties and light shielding properties, have a small air bubble size, and have excellent mechanical strength without using any forming agent. In the present invention, opaque quartz glas...

Full description

Saved in:
Bibliographic Details
Main Authors MUTOU, TAKESHI, SUZUKI, TAKAYA, ITO, CHIEMI, KUNIYOSHI, MINORU, SATO, MASAHIRO
Format Patent
LanguageChinese
English
Published 16.09.2020
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
Online AccessGet full text

Cover

More Information
Summary:To facilitate production of large spherical opaque quartz glass ingots which have excellent heat ray shielding properties and light shielding properties, have a small air bubble size, and have excellent mechanical strength without using any forming agent. In the present invention, opaque quartz glass having a small air bubble size and high mechanical strength can be obtained by: preparing a slurry having a silica powder concentration of 45 to 75 wt% by dispersing silica powder in water; wet grinding the silica powder to adjust the average particle size and the standard deviation of the particle size to 8 [mu]m or less and 6 [mu]m or less, respectively; spray dry granulating the slurry; and melting the granulated powder.
Bibliography:Application Number: TW20198143432