Abstract:
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.
Abstract:
A web conveyance apparatus (101) may comprise a first cleaning device (136) with a first exterior suction port (211) laterally positioned outside of a first edge (201a) and facing a footprint (204a) of a first major surface (203a) of a web (103). In further embodiments, a method of manufacturing a web (103) may comprise conveying the web along a direction of a conveyance path and suctioning particles from the first major surface (203a) with a first exterior suction port (211) laterally positioned outside of a first edge (201a) and facing a footprint (204a) of a first major surface (203a) while conveying the web.
Abstract:
A method of continuous processing of flexible glass ribbon having a thickness of no more than 0.35 mm using a glass processing apparatus is provided. The method includes providing the glass processing apparatus having at least three processing zones including a first processing zone, a second processing zone and a third processing zone. The flexible glass ribbon is continuously fed from the first processing zone, through the second processing zone to the third processing zone. Rate of the flexible glass ribbon is controlled through each of the first processing zone, second processing zone and third processing zone using a global control device. The second processing zone has a conveyance path for the flexible glass ribbon through a cutting zone having a radius of curvature of from about 100 inches to about 400 inches.
Abstract:
Methods for producing a glass ribbon include the step of drawing a glass ribbon from a quantity of molten glass and detecting an instability in the glass ribbon. In response to the detected instability, the method can further include the step of automatically adjusting an operating variable for each of a plurality of stabilizing elements simultaneously with a controller to at least partially counter the detected instability.
Abstract:
A glass manufacturing apparatus comprises a forming device configured to produce a glass ribbon and a control device configured to independently operate a first pull roll apparatus and a second pull roll apparatus such that the first pull roll apparatus rotates with a substantially constant torque the second pull roll apparatus rotates with a substantially constant angular velocity. The control device is further configured to adjust the substantially constant torque of the first pull roll apparatus based on an operating condition of at least one of the first pull roll apparatus and the second pull roll apparatus. In further examples, methods of manufacturing a glass ribbon are provided.
Abstract:
Methods and apparatuses for managing pulling forces applied to a glass ribbon in a draw apparatus are disclosed. The method includes applying a front-side and a rear-side drive torque to a glass. The method further includes calculating automatically with the at least one electronic controller a front-side and a rear-side average pulling force applied to the glass ribbon and corresponding to a first time period of at least one rotation of the front-side or rear-side stub roller, respectively. The front-side average pulling force and the rear-side average pulling force are compared to establish a pulling force differential between the front-side average pulling force and the rear-side average pulling force. One or more of the front-side drive torque or the rear-side drive torque are modified to decrease the pulling force differential between the front-side average pulling force and the rear-side average pulling force.
Abstract:
A glass manufacturing apparatus includes a forming device that is configured to produce a glass ribbon that includes a width extending between a first edge and an opposite second edge of the glass ribbon. A lower draw roll apparatus includes a first pair of draw rolls arranged and configured to draw the first edge of the glass ribbon within a lower draw zone along the draw path. The lower draw roll apparatus is located between a setting zone and a separation location where the glass ribbon is separated to form a glass sheet.
Abstract:
A glass element having a thickness from 25 μm to 125 μm, a first primary surface, a second primary surface, and a compressive stress region extending from the first primary surface to a first depth, the region defined by a compressive stress σI of at least about 100 MPa at the first primary surface. Further, the glass element has a stress profile such that when the glass element is bent to a target bend radius of from 1 mm to 20 mm, with the center of curvature on the side of the second primary surface so as to induce a bending stress σB at the first primary surface, σI+σB
Abstract translation:一种玻璃元件,其厚度为25μm至125μm,第一主表面,第二主表面和从第一主表面延伸到第一深度的压应力区域,该区域由压缩应力和 在第一主表面处至少约100MPa。 此外,玻璃元件具有应力分布,使得当玻璃元件弯曲到目标弯曲半径为1mm至20mm时,具有在第二主表面侧的曲率中心以引起弯曲应力 &sgr; B在第一个主表面,&sgr; I +&sgr; B <0。 此外,当玻璃元件的第一主表面装载有直径为1.5mm的碳化钨球时,玻璃元件具有≥1.5kgf的耐刺穿性。
Abstract:
A method and apparatus for processing glass comprising a forming apparatus in a first processing zone, the forming apparatus configured to form a glass ribbon having a first direction of travel in the first processing zone. The apparatus also includes a first cutting apparatus in a second processing zone, the first cutting apparatus configured to separate one or more portions of the glass ribbon, the glass ribbon having a second direction of travel. The apparatus includes a first buffer zone between the first processing zone and the second processing zone in which the glass ribbon is supported in a first catenary between two, spaced-apart payoff positions. The second direction of travel in the second processing zone can be orthogonal to the first direction of travel in the first processing zone.
Abstract:
A glass manufacturing apparatus comprises a forming device configured to produce a glass ribbon and a control device configured to independently operate a first pull roll apparatus and a second pull roll apparatus such that the first pull roll apparatus rotates with a substantially constant torque the second pull roll apparatus rotates with a substantially constant angular velocity. The control device is further configured to adjust the substantially constant torque of the first pull roll apparatus based on an operating condition of at least one of the first pull roll apparatus and the second pull roll apparatus. In further examples, methods of manufacturing a glass ribbon are provided.