A method of continuously processing glass ribbon having a thickness 0.3 mm. The method includes providing a glass processing apparatus having a first processing zone, a second processing zone and a third processing zone. The glass ribbon is continuously fed from the first processing zone, through the second processing zone to the third processing zone. The feed rate of the glass ribbon is controlled through each processing zone using a global control device. A first buffer zone is provided between the first processing zone and the second processing zone in which the glass substrate is supported in a first catenary between two, spaced-apart, payoff positions. A second buffer zone is provided between the second processing zone and the third processing zone in which the glass substrate is supported in a second catenary between two, spaced-apart, payoff positions.

Articles with at least one finished edge and methods and systems for forming the same are disclosed. A method of forming a glass article having at least one finished edge includes heating a substrate to a preparation temperature, the substrate having at least one unfinished edge, applying a laser to the at least one unfinished edge of the substrate, the laser causing a temperature of the at least one unfinished edge to increase from the preparation temperature to a finishing temperature, and reducing a power of the laser over a time period of at least about 10 seconds until the laser is deactivated, resulting in the glass article comprising the at least one finished edge.

A glass and an enclosure, including windows, cover plates, and substrates for mobile electronic devices comprising the glass. The glass has a crack initiation threshold that is sufficient to withstand direct impact, has a retained strength following abrasion that is greater than soda lime and alkali aluminosilicate glasses, and is resistant to damage when scratched. The enclosure includes cover plates, windows, screens, and casings for mobile electronic devices and information terminal devices.

A method for separating and releasing a closed-form piece from a workpiece made of a brittle material is disclosed. A first pulsed laser-beam creates defects along the outline of the closed-form piece. A second laser-beam selectively heats the closed-form piece for a first time that is sufficient to initiate cracking between the defects. The heating is stopped for a period sufficiently long for the cracks to propagate completely between the defects. The second laser-beam is applied for a second time that causes melting and deformation of the closed-form piece. The deformation opens a gap between the closed-form piece and the rest of the workpiece, thereby allowing release of the closed-form piece.

A method for cutting thin glass, wherein the thin glass is heated with a laser beam along a path forming a cutting line moving along a forward feed direction, such that a crack propagates along the cutting line and cuts through the thin glass. The laser beam is formed by a beam-forming optic in such a way that the beam profile thereof has an elongated shape. The laser beam is orientated on the surface of the thin glass such that the longitudinal direction thereof is aligned in the feed direction. The elongated shape of the beam profile is asymmetric, such that the intensity course differs at the ends of the beam profile in such a way that the increase in intensity at the front end crossing the thin glass first is steeper than the drop in intensity at the opposite rear end.

The present application belongs to the technical field of manufacture for protection film for a terminal curved surface, and relates to a protection film for a terminal curved surface and manufacture method thereof, the hardened layers is provided on both sides of the substrate layer, and the substrate layer and the two hardened layers form the original sheet. The original sheet is hot-pressed by a hot pressing device, and the upper mold and the lower mold clamping the original sheet are heated, pressurized and cooled in order to obtain a protection film for a terminal curved surface, and the mold core outer rounded corner combining with the mold cavity inner rounded corner are pressurized to form a curved surface portion. The hardened layers is disposed on both sides of the substrate layer, so that the stress on both sides of the substrate layer are cancel each other after the substrate layer is heated, and the terminal surface protective film is more flat. The protection film for a terminal curved surface is easy to be molded, sensitive to be touched, high in hardness, and the outer side hardness can reach 9H, which is not easy to produce scratches, anti-fingerprint, anti-fragmentation edge, explosion-proof, and the protection film for a terminal curved surface has a curved surface portion suitable for protecting the terminal curved screen.

A method for manufacturing an annular glass plate that has an outer circumferential edge surface, an inner circumferential edge surface, and a thickness not larger than 0.6 mm includes processing for manufacturing an annular glass plate by irradiating each of the outer circumferential edge surface and the inner circumferential edge surface of an annular glass blank with a laser beam to melt the outer circumferential edge surface and the inner circumferential edge surface and form molten surfaces such that the molten surfaces in the outer circumferential edge surface and the inner circumferential edge surface each have an arithmetic average surface roughness Ra not larger than 0.1 m, and the surface roughness of the molten surface in the inner circumferential edge surface becomes larger than the surface roughness of the molten surface in the outer circumferential edge surface.

A method of continuously processing glass ribbon having a thickness0.3 mm. The method includes providing a glass processing apparatus having a first processing zone, a second processing zone and a third processing zone. The glass ribbon is continuously fed from the first processing zone, through the second processing zone to the third processing zone. The feed rate of the glass ribbon is controlled through each processing zone using a global control device. A first buffer zone is provided between the first processing zone and the second processing zone in which the glass substrate is supported in a first catenary between two, spaced-apart, payoff positions. A second buffer zone is provided between the second processing zone and the third processing zone in which the glass substrate is supported in a second catenary between two, spaced-apart, payoff positions.

A method for processing a transparent workpiece includes forming a contour of defect in the transparent workpiece and separating the transparent workpiece along the contour using an infrared laser beam. During separation, the method also includes detecting a position and propagation direction of a crack tip relative to a reference location and propagation direction of an infrared beam spot, determining a detected distance and angular offset between the crack tip and the reference location of the infrared beam spot, comparing the detected distance to a preset distance, comparing the detected angular offset to a preset angular offset, and modifying at least one of a power of the infrared laser beam or a speed of relative translation between the infrared laser beam and the transparent workpiece in response to a difference between the detected distance and the preset distance and between the detected angular offset and the preset angular offset.

Provided is a glass substrate heat chamfering method. An edge of a glass substrate (100) is chamfered by applying thermal shock to the edge of the glass substrate (100), thereby peeling a strip (100a) off from the edge of the glass substrate (100). The strip is cut at a predetermined point thereon before being broken due to the weight thereof. The strip (100a) is cut by applying at least one of heat and a laser beam to the predetermined point or by applying a flame (300a) of a torch (300) to the predetermined point. The application of the thermal shock includes brining a heating element (210) into contact with the edge of the glass substrate (100). In the chamfering, the heating element (210) is relatively moved along the edge of the glass substrate (100) while being brought into contact with the edge of the glass substrate (100).