摘要:
To provide a glass production process capable of reducing bubbles remaining in glass after production, substantially without a refiner.A glass production process, characterized in that glass to be produced is soda lime glass containing water, and the process comprises a step of subjecting molten glass to reduced pressure defoaming in an atmosphere under a pressure of at most the bubble growth starting pressure Peq (kPa) represented by the following formula (1): Peq=−80.8+98.2×[β-OH]+68.0×[SO3]+0.0617×T (1) wherein [β-OH] is the β-OH value (mm−1) of glass, [SO3] is the content (as represented by mass percentage based on oxides) of SO3 in glass, and T is the temperature (° C.) of the molten glass.
摘要:
A light blue flat glass which is soda-lime-silica glass and which contains Nd in such an amount that the content based on Nd2O3 represented by mass percentage, is from 0.001 to 0.1%, and no Co or Co in such an amount that the content based on CoO as represented by mass percentage, is less than 0.1 ppm.
摘要翻译:一种浅蓝色平板玻璃,其是钠钙石英玻璃,并且其含有以质量百分比表示的基于Nd 2 O 3 3的含量的Nd的量为 0.001〜0.1%,不含以质量百分比表示的以CoO为基准的量的Co或Co小于0.1ppm。
摘要:
To provide a high transmittance light-colored glass having a high Tva (at least 60%), a low Te (at most 60%), a low Pe (at most 6.0%) and λd of from 560 to 780 nm or λc of from −550 to −492 nm. A high transmittance light-colored glass comprising, as a glass matrix composition, SiO2: from 63 to 75 mass %, Al2O3: from 0 to 5 mass %, Na2O: from 5 to 15 mass %, K2O: from 0 to 5 mass %, CaO: from 5 to 15 mass %, and MgO: from 0 to 10 mass %, and as coloring components, Er2O3: from 0.3 to 3.0 mass %, t-Fe2O3: from 0.05 to 0.5 mass %, and Se: from 1 to 30 ppm, and having Redox: more than 62%.