Abstract: A submerged combustion melting system includes a furnace including a tank with a floor, a roof, a perimeter wall, and an interior, and burners to melt glass feedstock into molten glass, a batch inlet, a molten glass outlet, and an exhaust outlet. An exhaust system is in fluid communication with the interior of the tank, and includes a flue in fluid communication with the exhaust outlet. A refractory-lined hood may be in fluid communication with the flue, which may be fluid-cooled including fluid-cooled perimeter panels and lower and upper baffles. The hood may include a protrusion that protrudes into a downstream horizontal exhaust path and has an excurvate upper surface to streamline flow of exhaust gas through the hood to prevent gas recirculation and formation of condensate piles in the hood.

Abstract: An apparatus for molding a window, the apparatus includes: a first molding part; a jig disposed below the first molding part, the jig including a bottom surface and a plurality of side surfaces configured to support and seat a work piece to be processed into a window; and an second molding part disposed on the bottom surface, wherein the second molding part includes: a lower surface adjacent to the bottom surface; an upper surface facing the lower surface; a first cavity having a first curved surface generally concave in a direction facing the lower surface; a plurality of second cavities extending from the first cavity, the plurality of second-cavities having second curved surfaces; and a plurality of movable molds disposed on the second-cavities supported for movement along the second curved surfaces, respectively.

Abstract: A batch feeding apparatus, a submerged combustion melter, and method are disclosed. The batch feeding apparatus can include a batch feeding apparatus comprising a detachable feeder alcove for providing batch material to a melter, the feeder alcove including at least one side wall and a cover; and a batch feeder sealingly coupled to the cover, that feeds the batch material to the feeder alcove. The batch feeding apparatus may include an extendable panel that extends downwardly below a batch inlet of the feeder alcove to molten glass, and is configured to maintain contact with the molten glass to seal off a feeder alcove interior. Additionally, the batch feeding apparatus may include a heating device, a cleaning device, and/or a storage device.

Abstract: A cooling panel for a melter is disclosed that includes first and second outer walls and a plurality of side walls coupled to the first and second outer walls. The first and second outer walls and the plurality of side walls define an interior space. Each of the first and second outer walls, moreover, has a plurality of openings. The cooling panel further includes a plurality of baffles disposed in the interior space. The baffles include a plurality of projections. The respective openings of the outer walls and projections of the baffles fit together and are connected from outside of the cooling panel so that the outer walls and the baffles are fixed together, and the side walls are fixed to the outer walls so that the cooling panel is fluid-tight.

Abstract: A chemically toughened glass article is provided that has a thickness (t) of equal to or less than 0.4 mm, a first surface, a second surface, and a compressive stress region that is defined by a compressive stress (CS) of at least 100 MPa and at least one edge connecting the first surface and the second surface. The at least one edge has at least one chamfer with a chamfer width (A) and a chamfer height (B). The chamfer has a ratio of chamfer width/chamfer height (A/B) of between 1.5-20 and the chamfer has a ratio of chamfer width/glass thickness (A/t) of at least 0.5.

Abstract: Disclosed is a method for manufacturing ultra-thin glass. The method includes: patterning, on a mother glass substrate comprising a plurality of display cells and a dummy area surrounding the display cells, a cutting line having a shape corresponding to the display cells; forming a mother glass protective film on the mother glass substrate; forming a through-hole which corresponds to the cutting line by etching the mother glass substrate; and cutting bridges which are formed by the mother glass substrate and connect the through-holes.

Abstract: A device and method for adjustable heat dissipation in a channel cooling section are provided. The device for heat dissipation may include: a plurality of flat tubes arranged adjacent to each other inside the channel cooling section. Each of the flat tubes may be surrounded by a heater on an outer ring. A side insulation structure may be provided on both sides of each of the flat tubes, and a top insulation structure may be provided at a top of each of the flat tubes. The method for heat dissipation may include performing a first disassembly on the each section of flat tube one by one in sequence.

Abstract: A method for producing ultra-thin glass sheets is provided that results in glass sheets with high edge strength. The method includes: hot forming a continuous glass ribbon with a glass thickness from molten glass; annealing the glass ribbon with an annealing rate chosen based on the glass thickness; producing a laser beam focus area that is longer than the glass thickness; introducing filamentary defects into the glass ribbon using the laser beam so that the filamentary defects extend from one face to the opposite face and are spaced apart from one another along the breaking lines to produce transverse breaking lines and longitudinal breaking lines with margins each comprising a thickened bead; separating the beads along the longitudinal breaking lines and separating glass sheets by severing along the transverse breaking lines.

Abstract: A tempered glass has a surface and a thickness, wherein a stress profile of the tempered glass includes a first peak at the surface, at which the compressive stress becomes a maximum, a first bottom at which the stress, which gradually reduces from the first peak in the depth direction, becomes a local minimum, a second peak at which the compressive stress, which gradually increases from the first bottom in the depth direction, becomes a local minimum, and a second bottom at which the tensile stress, which gradually reduces from the second peak in the depth direction, becomes a minimum. The compressive stress at the first peak is 500 MPa or more, the compressive stress at the second peak P2 is from 15 MPa to 250 MPa, and the depth of layer of the second peak is from 4% to 20% of the thickness.

Abstract: Embodiments include an optical fiber cable comprising a length extending between a first end and a second end, a central cooling tube, a plurality of optical fibers disposed radially around the cooling tube, each optical fiber comprising a fiber core and a cladding disposed around the fiber core, an outer protective cover, and an inner thermal filler disposed between the outer protective cover and the central cooling tube and surrounding each of the optical fibers, wherein each of the central cooling tube, the outer protective cover, the inner thermal filler, and the plurality of optical fibers extend the length of the cable. Various systems and methods for removing imperfections from individual optical fibers and for distributing power across long distances using the optical fiber cable are also provided.

Abstract: A quartz glass crucible 1 having a cylindrical side wall portion 10a, a bottom portion 10b, and a corner portion 10c connecting the side wall portion 10a and the bottom portion 10b to each other includes a transparent layer 11 made of quartz glass, and a bubble layer 12 made of quartz glass and formed outside the transparent layer 11. A ratio of an infrared transmittance of the corner portion 10c at a maximum thickness position of the corner portion 10c to an infrared transmittance of the side wall portion 10a is 0.3 or more and 0.99 or less, and an absolute value of a rate of change in infrared transmittance in a height direction along a wall surface of the crucible from a center of the bottom portion 10b toward an upper end of the side wall portion 10a is 3%/cm or less.

Abstract: A laminate sheet article including: a core including an electrical semi-conductor or an electrical conductor; and a continuous glass clad layer on at least four of six sides the core of the sheet article. Also disclosed is an apparatus for making a sheet laminate article as defined herein. Also disclosed is a method of making and using the article.

Abstract: A glass manufacturing apparatus can include an elongated engagement surface rotatable through a rotation angle between a scoring position and a cleaning position. The glass manufacturing apparatus can further include a scoring device to score the glass substrate when the elongated engagement surface is positioned in the scoring position. The glass manufacturing apparatus can further include a cleaning device to clean the elongated engagement surface when the elongated engagement surface is positioned in the cleaning position. In further embodiments, a method of scoring a glass substrate can include, after producing a score line while the elongated engagement surface is positioned in the scoring position, rotating the elongated engagement surface from the scoring position to a cleaning position. The method can further include cleaning the elongated engagement surface while the elongated engagement surface is positioned in the cleaning position.

Abstract: An apparatus for manufacturing a silica glass crucible includes a rotating means for rotating a mold and a supply means for feeding a silica powder inside the mold, wherein the supply means has a feeding part for delivering the silica powder in a manner releasing it to fall to a position away from the inner wall surface of the mold inside the mold, and a dispersing part for changing, to one toward the inner wall surface side, at a fall position, the direction in which the silica powder fed from the feeding part moves, while also widening an angle at which the silica powder disperses toward the inner wall surface at the fall position. The apparatus is intended to allow a silica powder layer to be stably formed in the mold in a short period of time.

Abstract: A glass blank is cut out from a glass plate by forming a crack starting portion inside the glass plate by moving a first laser beam relative to the glass plate such that a focal position of the laser beam is located in an inner portion of the glass plate in its thickness direction and the focal position forms a circle when viewed from a surface of the glass plate, then causing cracks to develop from the crack starting portion toward main surfaces of the glass plate, and splitting the glass plate to separate, from the glass plate, a glass blank that includes a separation surface having an arithmetic average surface roughness Ra smaller than 0.01 ?m and a roundness not larger than 15 ?m. Thereafter, main surfaces of the glass blank are ground or polished.

Abstract: Apparatuses for making a laminated glass ribbon may include an upper forming body including an outer forming surface bounded by a pair of upper dams, and a lower forming body disposed downstream of the upper forming body and including an outer forming surface spaced from the outer forming surface of the upper forming body by an interior gap. An edge guide may be disposed along an interior upper dam wall and spaced apart in the interior gap from the lower forming body. Surfaces exterior to the outer forming surfaces of the upper and lower forming bodies may abut and be joined. A formed glass ribbon having a core glass layer and a pair of clad glass layers may include inner and outer portions that have substantially equal thickness ratios based on a glass core layer thickness compared to a combined glass cladding layer thickness in each portion.

Abstract: A manufacturing method of a large-outer-diameter quartz crucible for a Czochralski (CZ) single crystal is provided. The manufacturing method is a vacuum arc method, and specifically includes: releasing a high-temperature arc with an electrode bundle composed of 2N+1 electrodes to fuse a crucible blank, and performing rapid cooling to form an initial quartz crucible product, where N is an integer greater than or equal to 2; the 2N+1 electrodes include one central main electrode and 2N auxiliary electrodes; the 2N auxiliary electrodes are equidistantly distributed on a circumference with the central main electrode as a center; the central main electrode is aligned at an axis of the crucible mold; the 2N auxiliary electrodes are connected to two phases of an industrial three-phase power, and the two phases are alternately arranged on the auxiliary electrodes; the central main electrode is connected to a remaining phase of the industrial three-phase power.

Abstract: A method for processing a transparent workpiece includes applying a fluid film having a first refractive index to a impingement surface of the transparent workpiece that has a second refractive index. Further, a difference between the first refractive index and the second refractive index is about 0.8 or less and the impingement surface comprises a surface roughness Ra of about 0.1 ?m or greater. The method also includes forming a defect in the transparent workpiece by directing a laser beam oriented along a beam pathway and output by a beam source, through the fluid film, through the impingement surface, and into the transparent workpiece such that a portion of the laser beam directed into the transparent workpiece generates an induced absorption within the transparent workpiece, the induced absorption producing the defect within the transparent workpiece.

Abstract: Methods for making a glass article are described that include flowing molten glass through a metallic vessel, and supplying alternating electrical currents to multiple electrical circuits, each electrical circuit including a power supply, a pair of adjacent electrical flanges connected to the power supply, and a portion of the metallic vessel extending between and in electrical communication with the pair of adjacent flanges. At least two adjacent electrical circuits of the multiple electrical circuits share an electrical flange that is a common electrical path for the two adjacent electrical circuits, the two adjacent electrical circuits being supplied with alternating electrical currents, wherein at least one of the electrical currents is cut by a phase-fired controller.

Abstract: A method of strengthening glass articles includes introducing potassium ions to a surface region of the glass by an initial ion-exchange process, thermally treating the glass at a thermal treatment temperature and time sufficient to diffuse the potassium ions further into the glass to a depth of layer, and introducing a compressive stress of greater than 400 MPa at the surface through a final ion-exchange process. The final ion-exchange process may be conducted at a final ion-exchange temperature of no more than 450° C. The method of strengthening produces a glass article having a compressive stress of at least 400 MPa at the surface, a depth of compression of at least 30 ?m, and a central tension less than a threshold central tension above which flaws penetrating into the central region of the glass exhibit spontaneous self-propagation of the flaw front through and across the glass.