本发明涉及一种硼硅酸盐玻璃,其中,以氧化物基准的摩尔%计,所述硼硅酸盐玻璃包含:70.0%≤SiO2≤85.0%、5.0%≤B2O3≤20.0%、0.70%≤Al2O3≤10.0%、0.0%≤Li2O≤5.0%、0.0%≤Na2O≤10.0%、0.0%≤K2O≤5.0%、0.0%≤MgO≤5.0%、0.0%≤CaO≤5.0%、0.0%≤SrO≤5.0%、和0.10%≤Fe2O3≤1.0%,SiO2、Al2O3和B2O3的总量为85.0%以上,所述硼硅酸盐玻璃实质上不包含BaO、PbO和As2O3,对于平板玻璃而言,把将所述平板玻璃的厚度换算为1.50mm时的波长900nm~1300nm的光的平均透射率设为Tb[%],把将所述平板玻璃在玻璃粘度达到1012[dPa·s]时的温度T12以上的温度进行加热并弯曲了的情况下,在将厚度换算为1.50mm时的波长900nm~1300nm的光的平均透射率设为Ta[%],此时,满足Tb‑Ta>0。
The present invention relates to a borosilicate glass containing the following components in mol% in terms of oxide contents: 70.0% ≤ SiO2 ≤ 85.0%, 5.0% ≤ B2O3 ≤ 20.0%, 0.70% ≤ Al2O3 ≤ 10.0%, 0.0% ≤ Li2O ≤ 5.0%, 0.0% ≤ Na2O ≤ 10.0%, 0.0% ≤ K2O ≤ 5.0%, 0.0% ≤ MgO ≤ 5.0%, 0.0% ≤ CaO ≤ 5.0%, 0.0% ≤ SrO ≤ 5.0%, and 0.10% ≤ Fe2O3 ≤ 1.0%. In the borosilicate glass, the total amount of SiO2, Al2O3 and B2O3 is 85.0% or more, and BaO, PbO and As2O3 are not substantially contained. In a flat glass in which the thickness is converted to 1.50 mm, when the average transmittance of light having a wavelength of 900 nm to 1300 nm is defined as Tb [%], the flat glass is heated at a temperature T12 at which the glass viscosity becomes 1012 [dPa∙s] or higher to bent the flat glass, and the average transmittance of light having a wavelength of 900nm to 1300nm when the flat glass is bent is defined as Ta [%] in which the thickness is converted to 1.50 mm, the formula: Tb - Ta > 0 is satisfied.
硼硅酸盐玻璃
2024-06-07
Patent
Elektronische Ressource
Chinesisch
IPC: | C03C Chemische Zusammensetzungen für Gläser, Glasuren oder Emails , CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / C03B Herstellung oder Formgebung von Glas, Mineral- oder Schlackenwolle , MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR SLAG WOOL |