Country：China>Hebei>HengShui
Industrial zone No 88, Hengshui City, Hebei province, China.
Company：YuanBo Engineering Co., Ltd.
Mobile：
Tell：+86-318-8888385
Glass Discs with Good Thermal and Optical Properties Glass discs, whose material can be soda-lime, borosilicate or quartz, have different sizes and applications. The difference of soda-lime, borosilicate and quartz is the different content of silicon dioxide. The more silicon dioxide contain, the glass disc is stronger in thermal and optical properties. The diameter of our glass disc can be 5 mm to 1000 mm. The thickness can be 0.3 mm to 40 mm. Compared with other factory products, our glass discs surface is polished and no bubble and edge is exact round and polished. What's more, Our glass discs can work in very high temperature as well as acid and alkali environment. In addition, as optical glass, our glass discs light transmittance can reach 93%. With good thermal, mechanical and optical properties, the glass discs are widely used in instruments, LED lights, optical industry and so on. Four pieces of glass discs are on the ground and they are all bright, smooth and polished. GD-1: Our glass discs can be as thin as 0.3 mm and there is no bubble in them.One piece of glass disc stands on the ground. GD-2: Our thin glass discs have good optical properties and can also resist acid and alkali. Specification Material: soda-lime, borosilicate, quartz. Diameter: 5 mm - 1000 mm, according to customers' requirements. Thickness: 0.3 mm - 40 mm. Surface handling: polishing, flat. Edge handling: grinding, polishing. Glass discs thermal properties Material Soda-lime Borosilicate Quartz SIO2 content 60% - 75% > 81% > 90% Density (25 °C) 2.53 2.23 2.20 Coefficient of thermal expansion 8.6 × 10-6 3.3 × 10-6 5.5 × 10-7 Softening point 726 °C 820 °C 1780 °C Melting point 780 °C 1680 °C 2000 °C Annealing point 546 °C 560 °C 1120 °C Temperature for short time working 400 °C 500 °C 1500 °C Temperature for long time working 350 °C 450 °C 1200 °C Specific heat 0.18 J/kg °C 0.9 J/kg °C 670 J/kg °C Glass discs optical properties Material Soda-lime Borosilic....
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