Abstract:
PROBLEM TO BE SOLVED: To separate a glass sheet by only translating a laser beam and a cooling area along the surface of the glass sheet only once without the need for a scribing step. SOLUTION: The length and the translation speed (less than 200 mm/s) of an elongated laser beam 14 having a length of ≥100 mm are selected so that the maximum temperature generated at the surface of the glass sheet 12 by the translation of the laser beams 14 along the surface of the glass sheet 12 is at least by about 150°C lower than a strain point of the glass. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
Verfahren zum Herstellen eines Glasartikels, umfassend: Ausbilden einer Glasscheibe; Schützen der Oberflächen der gezogenen Glasscheibe durch Aufbringen eines schützenden Beschichtungsmaterials auf die Scheibe nach dem Ausbilden, wobei das Beschichtungsmaterial ausgewählt ist aus der Gruppe, bestehend aus Acryl- und Methacrylmaterialien, die als eine wässrige Lösung mit einem pH von ≥ 9 auf das Glas aufgebracht werden; Aushärten der Schutzbeschichtung auf dem Glas; Einkerben des Glases und Brechen des Glases entlang der Einkerbungen, um einen Artikelrohling zu bilden; Endbearbeiten der Ränder des Glases, um so einen Glasartikel zu erzeugen; und Entfernen der ausgehärteten Schutzbeschichtung von dem Glasartikel, wobei das Verfahren keine Läppungs-, Schleif- oder Polierschritte zum Entfernen von Ablagerungen oder Kratzern von der Oberfläche des Glasartikels umfasst.
Abstract:
Solid oxide fuel cell assemblies comprise packets of multi-cell-sheet devices based on compliant solid oxide electrolyte sheets that form a fuel chamber and support anodes interiorly and cathodes exteriorly of the chamber that can be electrically interconnected to provide a compact, high voltage power-generating unit; added frames can support the oxide sheets and incorporate fuel supply and air supply conduits or manifolds permitting stacking of the assemblies into fuel cell stacks of any required size and power-generating capacity.
Abstract:
Disclosed are systems and methods for separating a glass sheet along a predetermined line. Laser beams are generated and shaped into elongated laser beams. Arm members are provided that are pivotally coupled together to form a chain of arm members. Each elongated laser beam is directed therefrom a respective laser beam toward the glass sheet to form a contiguous chain of elongated laser beams thereon a surface of the glass sheet. The arm members can be moved to move the contiguous chain of elongated laser beams along the predetermined line to scoring the glass sheet along the predetermined line.
Abstract:
A method and an apparatus for both scoring and separating a brittle material, and in particular a glass sheet or substrate, using only a single laser beam. A radiation zone created by the beam incident on the glass substrate, and the radiation zone is effectively formed into two portions by a coolant jet incident on the radiation zone. The radiation zone is separated into a leading portion, which generates a vent crack partially through a thickness of the substrate, and a trailing portion that propagates the vent crack through the remainder of the substrate, thereby separating the substrate.
Abstract:
Methods and apparatus provide for: disposing an intermediate layer formed from at least one of: a metal, a conductive oxide, and combined layers of the metal and the conductive oxide, on one of a first material layer and a second material layer; and coupling the first and second material layers together via an anodic bond between the intermediate layer and the other of the first and second material layers.
Abstract:
A sheet of brittle material, such as glass, flat or bowed, is separated along a score line by applying vibration energy through a probe into previously scored sheet material. The separation time is less than 1 second with smooth edge quality. The brittle material can be in the form of a moving ribbon of glass sheet, where a vibrational load is applied transverse to the score line to enhance crack propagation along the score line. A controller operates the probe at selected vibration frequencies, amplitudes, contact velocities, contact forces of impact, alignment with the score line, and the like, depending on material properties and structure, and depending on optimal process parameters.
Abstract:
Disclosed are systems and methods for separating a sheet of glass by directing a microwave beam and a laser beam at a sheet of glass to propagate a crack across the sheet. A laser beam spot formed on the glass sheet by the laser at least partially overlaps a microwave beam spot produced on the sheet by the microwave beam and can be used to generate an increased power density in the overlap region, thereby forming a preferential direction for crack propagation.
Abstract:
Disclosed are systems and methods for scoring and separating a glass sheet along a curved trajectory using a laser and optics. The system includes a laser that generates a laser beam, a focusing lens, and a conical optical component, such as a conical lens or a reflective conical mirror. The laser directs the laser beam through the focusing lens and conical lens to create a curved score line that is projected onto a glass sheet to create a curved score line, along which the glass sheet can be separated. Optionally, the laser directs the laser beam through the focusing lens towards a conical mirror, off of which the laser beam is reflected toward the glass sheet to create a curved score line.