Abstract:
A glass ceramic article including a lithium disilicate crystalline phase, a petalite crystalline phased, and a residual glass phase. The glass ceramic article has a warp (µm)
Abstract:
A suction cup apparatus (143) for supporting a glass sheet (141a) includes a central suction member (401) including a substantially rigid member (403) which includes a support surface (405). The central suction member (401) further includes a layer of deformable material (407) extending over the support surface (405). A plurality of fluid ports (409) extend through the substantially rigid member (403) and the layer of deformable material (407). The suction cup apparatus (143) further includes a flexible peripheral flange (411) circumscribing the layer of deformable material (407). The flexible peripheral flange (411) and the central suction member (401) are configured to define a pressure zone (413) adjacent to a surface (501) of a glass sheet (141a). Methods are also provided including the step of applying a negative pressure to the suction cup apparatus (143) such that the suction cup apparatus (143) produces a negative pressure zone (413) adjacent to the surface (501) of the glass sheet (141a).
Abstract:
A suction cup apparatus (143) for supporting a glass sheet (141a) includes a central suction member (401) including a substantially rigid member (403) which includes a support surface (405). The central suction member (401) further includes a layer of deformable material (407) extending over the support surface (405). A plurality of fluid ports (409) extend through the substantially rigid member (403) and the layer of deformable material (407). The suction cup apparatus (143) further includes a flexible peripheral flange (411) circumscribing the layer of deformable material (407). The flexible peripheral flange (411) and the central suction member (401) are configured to define a pressure zone (413) adjacent to a surface (501) of a glass sheet (141a). Methods are also provided including the step of applying a negative pressure to the suction cup apparatus (143) such that the suction cup apparatus (143) produces a negative pressure zone (413) adjacent to the surface (501) of the glass sheet (141a).
Abstract:
A glass ceramic article including a lithium disilicate crystalline phase, a petalite crystalline phased, and a residual glass phase. The glass ceramic article has a warp (µm) -6 /µm diagonal 2 ) where diagonal is a diagonal measurement of the glass ceramic article in µm, a stress of less than 30 nm of retardation per mm of glass ceramic article thickness, a haze (%) 0.91 10 (2-0.03t) of electromagnetic radiation wavelengths from 450 nm to 800 nm, where t is the thickness of the glass ceramic article in mm.
Abstract:
Process for removing peripheral portions such as bead regions of a glass sheet including a step of pushing the glass sheet in the peripheral portion using a pushing mechanism such as a pushing bar, and corresponding apparatus. As a result of the use of the pushing mechanism, the engagement completion time for suction cups, if used, are reduced significantly. A process without using suction cups is enabled with enhanced yield. The increased process stability and enlarged process window are particularly advantageous for processing glass sheets having high flexibility.
Abstract:
Process for removing peripheral portions such as bead regions of a glass sheet including a step of pushing the glass sheet in the peripheral portion using a pushing mechanism such as a pushing bar, and corresponding apparatus. As a result of the use of the pushing mechanism, the engagement completion time for suction cups, if used, are reduced significantly. A process without using suction cups is enabled with enhanced yield. The increased process stability and enlarged process window are particularly advtangeous for processing glass sheets having high flexibility.