玻璃介绍（Glass introduction）.docVIP

玻璃介绍（Glass introduction） Plain glass Ordinary flat glass, also called window glass. The performance of flat glass is transparent, heat insulation, sound insulation, wear resistance, and resistance to climate change, there are some insulation, heat absorption, radiation and other characteristics, is widely used in the mosaic building doors and windows, walls, interior decoration etc.. The thickness of flat glass is usually divided into 2mm, 3mm, 4mm, 5mm, and 6mm according to its thickness, and also produces 8mm and 10mm. Generally 2mm and 3mm thick, suitable for civil buildings, 4mm--6mm for industrial and high-rise buildings. The main defects affecting the quality of flat glass include bubbles, stones and ribs. Bubbles are latent cavities in the vitreous, which are produced during the cooling phase of the manufacturing process. Also known as sand, commonly known as the stone lump is solid inclusion in the glass, the glass is the most dangerous defect in vivo, it not only undermines the glass appearance and optical homogeneity, and will greatly reduce the mechanical strength and thermal stability of glass products, and even make the products to fragmentation. A good flat glass product should have the following characteristics: 1) is a colorless or slightly pale green 2) the glass thickness should be uniform, the size should be standardized 3) no or less bubbles, stones and wave bars, scratches and other defects. Users in the purchase of glass, you can first put two pieces of glass flat together, so that each other coincide, when opened, if you make a lot of effort, it shows that the glass is very smooth In addition to carefully observe the glass without bubbles, stones and wave, scratch, good quality glass from 60 cm away, back line eye, there are large or concentrated bubbles are not allowed, there is lack of angle or split the child does not allow the glass surface to allow that wave, the line angle should not exceed 45 degrees; scratch sand should be less. The gl