| 摘要 |
FIELD: construction.SUBSTANCE: invention relates to silicate glass for making residential buildings and industrial facilities. This invention provides flat glass containing: BO0-3.9 wt%, NaO - 0.01-14 wt%, FeO- 0.01-5 wt%, FO - 0 wt%, MgO 7-22.2 wt%, AlO- 0.01-39 wt%, content of SiOis 1.9-4.1 times more than content of CaO, content of CaO is 1.0-1.8 times more than content of MgO. Lower limit of temperature of annealing of said glass is 550-710 °C; varying thickness of glass is less than 0.3 mm, coefficient of water absorption - in range from 0 to 0.3 %, its bending strength reaches 50-180 MPa.EFFECT: technical result is increased strength of glass.7 cl, 3 tbl, 3 dwg, 7 ex |
