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Yellow-green glasses absorbing ultraviolet radiations, process for making them, and their use in the making of containers.
Yellow-green glasses absorbing ultraviolet radiations, process for making them, and their use in the making of containers.
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机译:黄绿色玻璃吸收紫外线辐射,其制造工艺及其在制造容器中的用途。
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摘要
1. A reduced coloured glass, having a conventional silico-soda-calcia matrix, that is containing principal constituents 68 to 74% of SiO2 , 0 to 5% of Al2 O3 , 6 to 15% of CaO, 0 to 6% of MgO, 11 to 15% of Na2 O and 0 to 5% of K2 O, which comprises as colouring agents iron, chromium and optionally cobalt and, owing to reducing conditions used in manufacture, sulphides in sufficient quantities to cause strong absorption of ultra-violet radiation typical of sulphide chromophore complexes of iron and alkali metals in reduced glasses called "sulphide amber", characterised in that it contains said colouring elements in the following quantities by weight : 0.18 to 0.40% of iron measured as Fe2 O3 0.08 to 0.20% of chromium measured as Cr2 O3 0.01 to 0.04% of sulphides expressed as S, and 0 to 0.015% of cobalt expressed as CoO, and in that it has, at 5 mm thickness and for illuminant C a dominant wavelength from 565 to 578 nm.
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机译:1.一种还原的彩色玻璃,其具有常规的硅酸钠钙钙基质,其包含68-74%的SiO 2,0-5%的Al 2 O 3,6-15%的CaO,0-6%的MgO的主要成分。含有11%至15%的Na2 O和0%至5%的K2 O,它们包含铁,铬和可选的钴作为着色剂,由于制造过程中使用的还原条件,硫化物的量足以引起紫外线的强烈吸收还原玻璃中称为铁和碱金属的硫化物发色团络合物的典型辐射,称为“硫化琥珀”,其特征在于,该着色元素的含量按重量计如下:以Fe2 O3计铁的0.18%至0.40%,Fe2O3的0.08%至0.20%测得的铬含量为Cr2O3,0.01%到0.04%的硫化物以S表示,钴的0%到0.015%的钴以CoO表示,并且在5毫米厚的情况下,对于光源C,其主波长为565至578 nm。
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