摘要:
A glass that is ion exchangeable to a depth of at least 20 µm (microns) and has a internal region having a tension of less than or equal to 100 MPa. The glass is quenched or fast cooled from a first temperature above the anneal point of the glass to a second temperature that is below the strain point of the glass. In one embodiment, the glass is a silicate glass, such as an alkali silicate glass, an alkali aluminosilicate glass, an aluminosilicate glass, a borosilicate glass, an alkali aluminogermanate glass, an alkali germanate glass, an alkali gallogermanate glass, and combinations thereof.
摘要:
L'invention concerne une feuille de verre transparente comprenant une face munie d'une texturation formée dans la masse du verre par une pluralité de motifs géométriques en relief, concaves et/ou convexes par rapport au plan général de ladite face, rectilignes et parallèles s'étendant tout le long de ladite face. En particulier, selon l'invention, le rapport R de la hauteur maximale h du motif par rapport au plan général de la feuille de verre sur l'épaisseur e de la feuille de verre est de 0,002
摘要:
Glazing, thermally tempered to required standards, are produced more readily by tempering panes having a high coefficient of thermal expansion (greater than 93 x 10 per degree Centigrade) and for a low Fracture Toughness (less than 0.72 MPam ). Use of glasses selected according to the invention enables thin glazings (especially glazings less than 3mm thick) to be tempered to automotive standard with improved yields using conventional tempering methods, and thicker glazings to be tempered at lower quench pressure than required hitherto. Suitable glasses include glasses comprising, in percentages by weight, 64 to 75 %, SiO2, 0 to 5 % Al2O3, 0 to 5 % B2O3, 9 to 16 % alkaline earth metal oxide other than MgO, 0 to 2 % MgO, 15 to 18 % alkali metal oxide and at least 0.05 % total iron (calculated as Fe2O3).
摘要翻译:通过回火具有高热膨胀系数(大于93×10 -7 /摄氏度)的玻璃和低断裂韧度(小于0.72MPam <1 / 2>)。 根据本发明选择的玻璃的使用使得能够使用常规回火方法将薄玻璃(特别是小于3mm厚的玻璃)回火至汽车标准,具有提高的产量,以及在比迄今所要求的更低的骤冷压力下回火的较厚的玻璃。 合适的玻璃包括以重量%计含有64至75%,SiO 2,0至5%Al 2 O 3,0至5%B 2 O 3,9至16%除MgO之外的碱土金属氧化物,0至2%MgO,15至 18%的碱金属氧化物和至少0.05%的总铁(以Fe 2 O 3计)。
摘要:
L'invention concerne un procédé de fabrication d'un substrat verrier renforcé thermiquement, comprenant l'application d'une couche comprenant un polymère, dite couche temporaire, sur un substrat verrier comprenant une feuille de verre, puis l'application au substrat verrier revêtu de la couche temporaire d'un traitement de renforcement thermique du verre comprenant un chauffage menant à l'élimination de la couche temporaire, puis un refroidissement par soufflage d'air au travers de buses. Le substrat verrier ainsi obtenu présente un niveau d'iridescences réduit.
摘要:
An apparatus and method for edge treating the cut edge of a glass sheet is provided which has an a heat source and a cooling system. The glass piece has an active area and a vacant edge portion. The heat source is positioned to direct heat to the vacant edge portion and raise the temperature of the vacant edge portion of the glass piece to between 350C and 600C. The cooling system maintains the temperature of the active area of the glass piece below 250C. Additionally, the cooling system includes a heat sink assembly which is thermally coupled to the active area of the glass piece.