The plate glass also calls the unsilvered glass glass or the plate glass: Its chemical composition belongs to the sodium calcium silicate glass, the composition scope is generally: SiO270~73% (weight, similarly hereinafter); Al2O30~3%; CaO6~12%; MgO0~4%; Na2O+K2O12~16%.
It has, transparent, the heat preservation, the sound insulation diaphanous, wear-resisting, bears performance and so on climatic change.Plate glass main physics performance index: Refractive index approximately 1.52; Penetrability above 85% (depth 2 millimeters glass, colored and belt coating exception); Softening point 650~700°C; Heat conductivity 0.81~0.93 tile/(rice? Opens); The expansion coefficient 9~10×10-6/opens; Proportion approximately 2.5; Bending strength 16~60 megabars.
The ordinary plate glass is a windowpane, refers generally with slotted vertical draws onto, pulls, does not have the trough evenly vertical to draw onto and craft production and so on rising sun law plate glass.According to national standards << plate glass >> (GB11614-2009) stipulation, plate glass according to its nominal thickness, separable not 2, 3, 5, 6, 8, 10, 12, 15, 19, 22, 25 millimeters altogether 12 kind of specifications.Uses in constructing, the workshop, the warehouse generally and so on, also available it processes the ground-glass, the colored glazed surface glass and so on, thickness may take the production polished glass in 5 millimeter above the semifinished materials.
The plate has the polished glass and floats the law glass is common with the ordinary plate glass after the two-sided polishes, polishing or uses floats the law craft production the glass.Generally uses in building and so on civil construction, store, hotel, office block, airport, station windows and doors, the display window and the system mirror and so on, also available in processing manufacture steel, band and so on safety glass.
The plate glass market mainly includes two big aspects, namely the structural purpose plate glass (including processing glass) and the automobile uses the glass.In the world plate glass market about 70% uses in the construction, about 10% uses in the automobile glass, about 20% uses in living at home, the family installs and other uses.