The present disclosure illustrates an energy-saving wind box, a cooling device and an energy-saving cooling system. A wind box body of the present disclosure is installed with slot plates and driving components to movably shield wind holes, wherein an outer surface of the wind box body has air outlets arranged horizontally in an upper row and a lower row, and the air outlets in the upper row are respectively opposite to the air outlets in the lower row. Each air outlet has a wind hole. The slot plates are respectively disposed in the wind holes. Each driving component is connected to two corresponding slot plates in the upper and lower rows which are arranged opposite to each other. The two slot plates are controlled by the driving component to pivot to close or open the corresponding two wind holes.

A forming apparatus includes a frame, an air grid system, and a forming system; the air grid system includes a plurality of upper air grids and a plurality of lower air grids; the upper air grids are mounted at an upper part of the frame through a lifting mechanism, and the lower air grids are mounted in the forming system at a lower part of the frame; a gradual transition section is arranged at an inlet side of the forming system to enable a glass pane to be gradually arched in a transverse direction, and the gradually arched glass pane is conveyed into the forming system; and the forming system includes two groups of longitudinal forming and arching mechanisms and a plurality of transverse forming and arching mechanisms arranged in a glass pane conveying direction.

A quench arrangement for quenching glass sheets includes a main quench station having upper and lower main quench heads for performing a primary quench operation on a glass sheet, a first lower secondary quench head located downstream of the main quench station, and a second lower secondary quench head located downstream of the first lower secondary quench head. The arrangement further includes an upper secondary quench system positioned above the first and second lower secondary quench heads, and the upper secondary quench system is cooperable with the lower secondary quench heads to perform further cooling of the glass sheet. The arrangement further includes a conveyor located above the second lower secondary quench head for moving the glass sheet away from the second lower secondary quench head.

In a method for tempering a glass sheet, based on identified glass sheet properties, a tempering furnace temperature and/or glass sheet heating time are adjusted, the blowing pressure and/or distance of cooling unit air jets are adjusted, the glass sheet is heated in a tempering furnace, the achieved temperature is thereafter measured from the glass sheet surface, and the glass sheet is cooled. The development of the thickness direction temperature profile of the sheet during the tempering cooling is calculated, the residual stress profile achieved in the glass sheet during tempering is calculated, a reference variable for the glass sheet tempering level is selected and the selected reference variable is compared to a predetermined threshold value. If the comparison between the reference variable and the threshold value fulfils a predetermined criterion, an alarm is created and/or the glass sheet is found not to qualify as safety glass.

A strengthened cover glass or glass-ceramic sheet or article as well as processes and systems for making the strengthened glass or glass-ceramic sheet or article is provided for use in consumer electronic devices. The process comprises cooling the cover glass sheet by non-contact thermal conduction for sufficiently long to fix a surface compression and central tension of the sheet. The process results in thermally strengthened cover glass sheets for use in or on consumer electronic products.

A blower box for thermal prestressing of glass panes, includes a stationary part having a cavity and a gas feed line connected to the cavity, and at least one closure element having a plurality of nozzles connected to the cavity for applying an air flow to a surface of a glass pane, wherein the at least one closure element is connected to the stationary part at least via a connection element of variable length, and the at least one closure element is movable relative to the stationary part such that the distance between the closure element and the stationary part is variable, and the blower box is equipped with a system for moving the at least one closure element.

The present disclosure relates to a tempering furnace for a glass sheet, which has a conveyor for the glass sheet, first convection blow means over the conveyor to heat the glass sheet by hot air jets blown on its top and/or bottom surface, and second convection blow means to help lead pressurized air from outside the tempering furnace to second blow nozzles from which air is discharged as jets towards the top and/or bottom surface of the glass sheet. The heating effect of the air jets on the glass sheet is adjustable by adjusting the feeding of electric current to electric elements inside blowing channels. Blow nozzles of the second convection blow means form blow zones. The heating effect on the glass sheet of the jets discharged from the second blow nozzles inside the blow zones is adjustable by adjusting the blowing pressure of feed pipes.

A device for annealing glass panes includes rollers for transporting the glass panes and two sets of slit-shaped nozzles, which run parallel to the axes of the rollers and from which cooling air can be directed onto both sides of the glass panes. In the device, cooling air acts as effectively as possible on the two surfaces of the glass pane, and anisotropies and stresses within the glass are reduced. This can be achieved by each nozzle being formed as a continuous flow channel, which extends over the width of the glass panes and on both parallel running sides of which partitions are arranged, for the forming of a flow pocket assigned to this flow channel. The cooling air that comes back from the glass panes is returned between this flow channel and the associated partitions.

A process for manufacturing a bent laminated glazing, includes manufacturing a first bent laminated glazing including at least two glass substrates locally comprising, in each of the at least two glass substrates and facing each other in all the at least two glass substrates, a zone including compressive stresses, and cutting the first bent laminated glazing through its entire thickness along a line included in the zone in order to form local cut edges and, after cutting, a second bent laminated glazing with the local cut edges having compressive edge stresses.

A device for annealing glass panes includes rollers for transporting the glass panes and two sets of slit-shaped nozzles, which run parallel to the axes of the rollers and from which cooling air can be directed onto both sides of the glass panes. In the device, cooling air acts as effectively as possible on the two surfaces of the glass pane, and anisotropies and stresses within the glass are reduced. This can be achieved by each nozzle being formed as a continuous flow channel, which extends over the width of the glass panes and on both parallel running sides of which partitions are arranged, for the forming of a flow pocket assigned to this flow channel. The cooling air that comes back from the glass panes is returned between this flow channel and the associated partitions.