The present disclosure relates to a laminated vacuum insulated glass (VI G) unit (100) comprising a vacuum insulated glass unit (1) comprising first and second glass sheets (2a, 2b) separated by support structures (3) to provide a gap (4) between the glass sheets (2a, 2b), and an edge-sealing (5) enclosing and sealing said gap (4). An evacuation hole (6) extend to the gap (4) and is arranged in said first glass sheet (2a). A recessed portion (8) may enclose the evacuation hole (6), and a sealing system (7) seals the evacuation hole (6), The sealing system may be arranged in said recessed portion. A lamination layer (11) is arranged between a further sheet (12) and the first glass sheet (2a) comprising said evacuation hole (6). A part of said sealing system (7) extends into a hole (13) in the further sheet (12), and an enclosure device (15) comprising one or more walls (16a, 16b) encloses at least a part of said sealing system (7) and extends into said hole (13) in the further sheet (12) and may also extend into said recessed portion (8). A cover (30) may be placed to cover the enclosure device and hole in the further sheet. The present disclosure moreover relate to methods and a building aperture covering such as a window or door.

In s glass panel unit, a pitch of pillars is determined such that a distortion of a first panel and second panel is smaller than an interval between the first panel and the second panel. The distortion is calculated based on the interval between the first panel and the second panel, load loading compression fracture per one pillar of the multiple pillars, Young's moduli of the first panel and the second panel, thicknesses of the first panel and the second panel, and Poisson's ratios of the first panel and the second panel.

A method of manufacturing a vacuum insulated glazing (VIG) unit, the method comprising disposing a sealing composition around a periphery of first and second substantially parallel glass panes to define a cavity and form a pre-sealed VIG unit; flowing gas comprising a reactive oxygen species into the cavity; heating the sealing composition to a first temperature; and heating the sealing composition to a second temperature to form the peripheral seal and a sealed cavity between the first and second glass panes.

A method for manufacturing a glass panel unit includes a glue arrangement step, an assembly forming step, a first melting step, an evacuation step, and a second melting step. The first melting step includes melting a hot glue, bonding a first and second panel with the glue, and forming an internal space. The first melting step includes a first temperature raising step, a first temperature maintaining step including maintaining the temperature of the assembly at a temperature equal to or higher than a softening point of the hot glue, and a first temperature lowering step, which are performed in this order. The first temperature lowering step includes: an anterior temperature lowering step including lowering the temperature of the assembly; a middle temperature maintaining step including maintaining the temperature of the assembly; and a posterior temperature lowering step including lowering the temperature of the assembly, which are performed in this order.

A gas adsorption unit includes a getter, a package encapsulating the getter, and a low-melting member. The low-melting member is heated, and thereby melted, at a temperature lower than a melting point of the package to bond a connector including the low-melting member onto the package. Next, the low-melting member that has melted is cooled and cured. Then, thermal stress resulting from a difference in thermal expansion coefficient between the package and the connector is caused to the package connected to the connector, thereby breaking the package open.

The present disclosure relates to methods of providing an edge sealing (2) for a vacuum insulated glass (VIG) unit. The methods may comprise providing one or more glass sheets (1a, 1b). A glass material (5) such as a solder glass material is heated to soften the glass material (5), and the heated glass material is then applied along edges of the one or more glass sheets (1a, 1b) to provide an edge sealing (2) for sealing a gap (13) between paired glass sheets (1a, 1b). The heated glass material (5) may be applied by means of a dispensing nozzle (6). The disclosure moreover relates to a VIG unit and a system.

The assembling step is a step of preparing an assembly. The setting step is a step of setting a plurality of holder installation areas along an outer peripheral edge of the peripheral wall. The determining step is a step of determining a first area in which the slit and the peripheral wall are not adjacent to each other in the first area and a second area in which the slit and the peripheral wall are adjacent to each other. The installation step is a step of providing a holder in the first area without providing the holder in the second area.

An insulated glass assembly line generally includes a first and second automated lite picker, a washer, a vertical gas filling and wetting station, a robot, and an applicator station.

A glass panel unit manufacturing method includes a bonding step, an insertion step, an evacuation step, and a sealing step. The bonding step includes bonding a first substrate having an evacuation port and a second substrate with a bonding material having a frame shape to form an internal space. The insertion step includes inserting a sealing material into the evacuation port. The evacuation step includes evacuating the internal space by connecting an exhaust device to the evacuation port and driving the exhaust device. The sealing step includes sealing the evacuation port with the sealing material while an evacuated state in the internal space is maintained. In the sealing step, a measured value by a pressure gauge is monitored while the sealing material is heated, softening of the sealing material is detected based on the transition of the measured value, and heating of the sealing material is stopped.

Refrigeration doors are disclosed having multiple glass panes with sealed air spaces between the panes. The air space can be filled with one or more inert gasses in high concentrations, and the surfaces of the panes can have different combinations of Low-E layers. In some embodiments, the inert gas can be used in concentrations up to 98% and the Low-E layers can be included on the inside surfaces of the glass panes. The gas and Low-E layer combinations give the refrigeration doors the desired visual and thermal characteristics. The present invention can be used with refrigerator doors, but it is understood that it can also be used in different doors used in different applications, and can also be use in windows.