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Plate glass concept
- Jun 07, 2017 -
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.