Abstract: Provided is a method of producing a glass roll including: a conveying step of conveying a glass film (G) along a longitudinal direction thereof; a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus (19) while conveying the glass film (G) by the conveying step, to thereby separate the glass film (G) into a non-product portion (Gc) and a product portion (Gd); and a take-up step of taking up the product portion (Gd) into a roll shape, to thereby form a glass roll (R). The cutting step includes a step of winding a thread-like peeled material (Ge) generated from an end portion of the product portion (Gd) in a width direction around a rod-shaped collecting member (23), and leading the wound thread-like peeled material (Ge) in a predetermined conveying direction (PX) by a leading device (24).

Abstract: An actuating mechanism control method for a glass plate tempering process, comprising: after a glass plate is conveyed into a heating furnace, a monitoring unit monitors in real time energy consumed by a heating element of the heating furnace, and sends the energy consumed to a control unit to compare with a set threshold; and when the energy consumed by the heating element of the heating furnace is greater than or equal to the set threshold, the control unit sends an instruction to an actuating mechanism to control actions of the actuating mechanism to complete a corresponding tempering process procedure. Through the method that the monitoring unit monitors in real time the energy consumed by the heating element of the heating furnace, a heating procedure of the glass plate is more scientifically and precisely controlled, and, therefore, a discharging moment of the glass plate can be accurately determined.

Abstract: Provided is a method of manufacturing a glass film, including: a conveying step of conveying an elongated glass film (G) along a longitudinal direction thereof; and a cutting step of irradiating the glass film (G) with a laser beam (L) from a laser irradiation apparatus (19) while conveying the glass film (G) through the conveying step, to thereby separate the glass film (G). The cutting step includes generating a thread-like peeled material (Ge) in a helical shape from an end portion of the separated glass film (G) in a width direction. The thread-like peeled material (Ge) has a width (W) of 180 ?m or more and 300 ?m or less. In addition, the thread-like peeled material (Ge) has a helical diameter (D) of 80 mm or more and 200 mm or less.

Abstract: A muffle for a glass tube forming process includes an inlet end coupled to a bowl, an outlet end having an inner dimension larger than an inner dimension of the inlet end, and a sidewall extending from inlet end to the outlet end. A radial distance from a center axis of the muffle to an inner surface of the sidewall increases from the inlet end to the outlet end and the sidewall is substantially free of abrupt changes in the radial distance that produce instability regions within the muffle. The muffle includes a channel between an outer surface of a portion of the sidewall and an insulating layer disposed about the sidewall, the channel being operable to pass a heat transfer fluid into thermal communication with the sidewall to provide cooling to the muffle. Glass forming systems including the muffle and glass tube forming processes are also disclosed.

Abstract: A method for processing a transparent workpiece comprises forming an optically modified region in or on a transparent workpiece and forming a contour in the transparent workpiece, the contour comprising a plurality of defects in the transparent workpiece positioned laterally offset from the optically modified region. Forming the contour comprises directing a primary laser beam comprising a quasi-non diffracting beam oriented along a beam pathway onto the transparent workpiece such that a first caustic portion of the primary laser beam is directed into the transparent workpiece, thereby generating an induced absorption within the transparent workpiece to produce a defect within the transparent workpiece and a second caustic portion of the primary laser beam is modified by the optically modified region. Further, translating the transparent workpiece and the primary laser beam relative to each other along a contour line and laterally offset from the optically modified region.

Abstract: A mold includes a mold component, a plurality of ejector pins and a stop block. The mold component has a molding surface for forming a glass product and a bottom surface disposed opposite to the molding surface. The mold component defines a plurality of passing through holes through the molding surface and the bottom surface. Each ejector pin passes movably through one corresponding through hole and is configured to separate the glass product from the mold component. The stop block for forming a stop on the ejector pins disposed on one side of the bottom surface. Separates the glass product from the mold component before the glass product is completely cooled down by using the combination of the ejector pins together with the stop block, which can make the cooling of the glass product more uniform.

Abstract: A glass refining system, glass refining device, and method are disclosed. The apparatus in accordance with one aspect of the disclosure includes an objective having a laterally outer extremity, where a molten metal stream flows from an opening in the objective and over the objective, and separates from the objective at a molten metal separation location that is inboard of the extremity; and a molten metal receptacle disposed below the objective and configured to receive the molten metal stream, wherein a molten glass stream flows downwardly toward the objective and over the molten metal stream, and wherein the molten glass stream separates from the molten metal stream at a molten glass separation location that is laterally outboard of the molten metal separation location and flows into a molten glass receptacle.