IMPROVED METHOD FOR MANUFACTURING FLAT GLASS BY FLOATING

• Main Authors: BOUILLET FABIEN, LEBOIS FELIX
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2019
• Subjects: CHEMISTRY; GLASS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL

The invention relates to a method in which, in order to improve the optical quality of the glass obtained by floating a sliver of glass (8) on a bath of molten metal (7), the molten metal (7) of the bath is exposed to a magnetic field (B) with a vertical component, sliding in the direction of longitudinal movement (L) of the glass sliver (8), said magnetic field (B) being applied to the molten metal (7) located under the glass sliver (8) in an area (Z) of the bath in which the glass complies with the following relation: 10<-3.5>Pa.m .s<[mu].h <10<-2>Pa.m .s, wherein [mu] is the viscosityof the glass, expressed in Pa.s, and h is the thickness of the glass sliver, expressed in metres. 本发明涉及一种方法，其中，为了改善通过将玻璃带(8)漂浮在熔融金属浴(7)上而获得的玻璃的光学品质，使浴的熔融金属(7)经受具有垂直分量的并且沿玻璃带(8)的纵向移动方向(L)滑动的磁场(B)，将该磁场(B)施加到在区域(Z)中位于玻璃带(8)下方的熔融金属(7)上，在该区域(Z)中，该玻璃满足以下关系：其中：-μ是以Pa.s表示的玻璃粘度，和-h是玻璃带的厚度，以米表示。