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1. 发明申请

WO0216277A8 SODA-LIME-SILICA GLASS COMPOSITIONS 审中-公开
标题翻译： SODA-LIME-SILICA玻璃组合物
公开(公告)号：WO0216277A8
公开(公告)日：2002-08-29
申请号：PCT/GB0103683
申请日：2001-08-17
申请人： PILKINGTON PLC , BUCKETT JOHN , MARSH JONATHAN SAMUEL , TORR ASHLEY CARL
发明人： BUCKETT JOHN , MARSH JONATHAN SAMUEL , TORR ASHLEY CARL
IPC分类号： C03B7/06 , C03B18/04 , C03B27/00 , C03C3/078 , C03C3/087 , C03B18/02
CPC分类号： C03C3/087 , C03B7/06 , C03B18/04 , C03B27/00 , C03C3/078
摘要： A soda lime silica glass suitable for forming by the float process is disclosed, having a composition containing 6- 12.4 wt % Na2O and 10.2-17 wt % CaO. The glass may also contain 68-75 wt % SiO2, 0-4 wt % A12O3, 0-3 wt % K2O, 0-5.5 wt % MgO. 0-2 wt % Fe2O3 and 0-0.5 wt % SO3. Compared with a typical known commercially produced soda lime silica glass, the proportion of Na2O is reduced in order to reduce raw material costs, and the proportion of CaO is increased. CaO and MgO may be adjusted relative to each other according to limestone and dolomite prices in the manufacturing locality: The above oxides are also adjusted to maintain the physical and optical properties of the glass as close as possible to those of the typical glass, two exceptions being the liquidus temperature, which is higher than the typical glass, and the fracture toughness, which is lower, and results in improved toughenability.
摘要翻译：公开了一种适用于通过浮法工艺形成的钠钙石英玻璃，其具有包含6-12.4重量％Na 2 O和10.2-17重量％CaO的组成。该玻璃还可含有68-75重量％的SiO 2，0-4重量％的Al 2 O 3，0-3重量％的K 2 O，0-5.5重量％的MgO。 0-2重量％Fe 2 O 3和0-0.5重量％SO 3。与典型的商业生产的钠钙硅玻璃相比，为了降低原料成本，降低了Na2O的比例，并且CaO的比例增加。 CaO和MgO可以根据生产地点的石灰石和白云石价格相对调节：还调整上述氧化物以保持玻璃的物理和光学性能尽可能接近典型玻璃的物理和光学性质，两个例外作为比典型玻璃高的液相线温度，断裂韧性较低，并且导致改善的韧性。

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