| 摘要 |
<p>The present invention provides a method of manufacturing a frit achieving the surface of ceramics which has high fine texture and brightness and is hardly stained. In accordance with a method of the present invention, materials are mixed so as to make SiO2 55% or more, Al2O3 5% or more (in which the total amount of SiO2 and Al2O3 being made 60-85%), alkaline earth metal oxide(s) 2-20%, ZnO 2-15%, alkaline metal oxide(s) 2-7%, B2O3 0-5%, TiO2 and/or ZrO2 0-4% and MoO3 0-3% in terms of the ratio by weight of the oxides. The resulting mixture is melted at 1450-1650 DEG C. The molten substance is quickly cooled at a cooling rate of 600-1500 DEG C/second.</p> |
