C03B23/0258

NON-CONTACT SHAPING DEVICE AND METHOD
20190389760 · 2019-12-26 ·

A non-contact shaping device includes a first fixture including a fixing section structured to alternately blow out and suck in gas. The fixing section may fix, through suction of gas, a glass plate thereon. An optic heat source processing device is selectively set above predetermined portions of the glass plate to heat, in a non-contact manner, and thus soften, in a temperature-controlled manner, the portions for curving and suspending downward along an edge of the fixing section. The curved glass plate is then lifted up through blowing gas from the first fixture. The second fixture selectively covers the curved glass plate and blow gas therefrom to flow, in collaborative combination with the gas blown from the first fixture, around surfaces of the curved glass plate for cooling and fixing a shape of the curved glass plate in a non-contact manner to form a three-dimensional curve-surfaced glass product.

Method for shaping glass panes

The invention relates to a method for shaping a glass pane (1), wherein the glass pane (1) is first heated and then bent until it has reached a shape that corresponds to a predefined target contour (ks), wherein exterior forces act on the glass pane (1) for the purpose of bending the glass pane (1). A change in a local curvature of the glass pane (1) over time is controlled such that the surface of the glass pane (1) simultaneously achieves the target contour at all points of the surface that do not remain static, by setting a temperature, and thus a viscosity, of the glass pane (1) so as not to be constant as a function of the location during the bending operation, and/or by suitably setting forces transferred by mounts (6) and/or pressure forces transferred by one or more pressure strips (3). The application furthermore relates to multiple glazed units produced by the method.

Tooling design for a self-weight edge press molding element for thin-sheet glass and thin hybrid-glass stack forming
11905197 · 2024-02-20 · ·

An edge-press molding element is part of a glass-bending tooling that includes a contoured-ring, gasket form factor. The edge-press molding element operates by self-weight bending a glass pane under a thermal load. The glass pane bends under molding conditions where a temperature differential of as low as 30 C. up to 100 C. is achieved between an edge of the glass pane and the center.

Methods and Systems for Computational Precision Three-dimensional Forming Via Localized Stress Remapping

A manufacturing process for realizing increased precision in forming elements using computational masks. Some embodiments include a thermal source that may be computationally patterned, and a subsystem coupled to the course, the subsystem comprising an element that may be computationally patterned.

METHODS TO COMPENSATE FOR WARP IN GLASS ARTICLES
20190367402 · 2019-12-05 ·

A method for compensating for warp in a glass article including placing the glass article on a fixture, heating the glass article to a first temperature in a viscoelastic range, cooling the glass article on the fixture to a second temperature, and then removing the glass article from the fixture and cooling the glass article to room temperature. The fixture may include a recess such that when the glass article is heated to the first temperature, the glass article sags into the recess. The fixture may be a flat plate when the glass article is heated to the first temperature, a temperature gradient is formed within the glass article. A method for compensating for warp includes physically removing portions of the glass article that are determined to warp when chemically strengthened.

Laminated glazing

A laminated glazing comprising a first ply of glazing material and a second ply of glazing material joined by at least one ply of adhesive interlayer material is disclosed. The first ply of glazing material comprises a sheet of glass having a first composition and the second ply of glazing material comprises a sheet of glass having a second composition different to the first composition. The laminated glazing has (i) a peripheral region extending around the periphery of the laminated glazing, the laminated glazing having a surface compression stress in the peripheral region and (ii) an edge compression, wherein the magnitude of edge compression is greater than the magnitude of the surface compression stress in the peripheral region. A method of making such a laminated is provided. A glass sheet suitable for being incorporated in such a laminated glazing is also disclosed.

SAG-ASSIST ARTICULATED TOOLING DESIGN FOR GLASS BENDING
20190315647 · 2019-10-17 ·

A sag-assist articulated tooling apparatus is described for complex, non-developable thin glass bending. The tooling apparatus employs a double-axis articulation design which introduces controllable external force in addition to glass gravity itself. The tooling apparatus described an articulated section along the primary bending direction and an articulated section along the cross bending direction. Each articulated section may include a hinge tower, counterweight, swing stopper, and counterweight stopper.

Thermoforming method and thermoforming apparatus

Provided is a method of thermoforming a molding material to have a bent portion and a flat portion extending from the bent portion. The method includes: placing the molding material on a bending mold, the bending mold having a curved surface; and forming the bent portion of the molding material by heating a portion of the molding material at least to a fluidization temperature such that the portion of the molding material bends due to the weight of the flat portion of the molding material to form the bent portion according to a shape of the bending mold.

GLASS ARTICLE
20190292095 · 2019-09-26 · ·

A glass article including a first main surface, a second main surface, and an end face, in which: the glass article includes an antiglare layer on the first main surface side; the antiglare layer has a glass transition point Tg of equal to or less than a glass transition point Tg.sub.0 of the glass article at a center portion in a cross section along a thickness direction; and the first main surface has a protrusion diameter y (m) that satisfies the relation (1) with respect to a 60 specular gloss (gloss value) x (%) of the first main surface,


y>0.0245x+3.65(1).

METHODS FOR MANUFACTURING THREE-DIMENSIONAL LAMINATE GLASS ARTICLES

According to one or more embodiments described herein, a three-dimensional laminate glass article may be manufactured by a process which may include heating a glass stack including at least two glass sheets that are unbonded with one another at a first temperature range, fusing the first glass sheet with the second glass sheet by heating the glass stack at a second temperature range, and shaping the glass stack. The first temperature range may be from about 150 C. to about 400 C. for a first period of time of at least about 5 minutes. The second temperature range may be from about 400 C. to about 1200 C.