The present invention provides an energy-saving plate and a method for manufacturing the same. The energy-saving plate of the present invention includes: at least one upper plate, at least one lower plate, at least one inner plate, and a plurality of support structures; a top edge of the upper plate and a bottom edge of the lower plate appear as a straight line; the inner plate is provided between the upper plate and the lower plate, and adjacent plates are separated by the plurality of support structures; an exhausting opening is provided at a lateral side of the inner plate, which is a through-groove inter-penetrating upper and lower surfaces of the inner plate; the periphery of the upper plate, the lower plate, and the inner plate are sealed via a sealing material, so as to form vacuum layers between the plate layers; an exhausting pipe is arranged in the exhausting opening, with which the exhausting opening is sealed together via the sealing material, an open-end of the exhausting pipe is located inside the exhausting opening, and a closed-end of the exhausting pipe is located outside the exhausting opening and is located in the space formed between the upper plate and the lower plate. In the present invention, a total flat surface of the energy-saving plate is achieved without structure defects, thus enhancing the strength of the energy-saving plate.

A glass frit according to this application may include a composition of P.sub.2O.sub.5, V.sub.2O.sub.5, TeO.sub.2, CuO, ZnO, and BaO configured to replace a conventional lead glass composition and enable a low temperature calcination. A coefficient of thermal expansion (CTE) of the glass frit may be matched with that of a glass substrate. The composition may not include an inorganic filler or at least reduce a content of an inorganic filler to reduce or prevent separation and breakage and to improve durability. The glass frit may be used as a paste for a vacuum glass assembly.

A glass frit according to this application may include a composition of P.sub.2O.sub.5, V.sub.2O.sub.5, TeO.sub.2, CuO, ZnO, and BaO configured to replace a conventional lead glass composition and enable a low temperature calcination. A coefficient of thermal expansion (CTE) of the glass frit may be matched with that of a glass substrate. The composition may not include an inorganic filler or at least reduce a content of an inorganic filler to reduce or prevent separation and breakage and to improve durability. The glass frit may be used as a paste for a vacuum glass assembly.

Certain example embodiments of this invention relate to edge sealing techniques for vacuum insulating glass (VIG) units. More particularly, certain example embodiments relate to techniques for providing localized heating to edge seals of units, and/or unitized ovens for accomplishing the same. In certain example embodiments, a unit is pre-heated to one or more intermediate temperatures, localized heating via at least one substantially two-dimensional array of heat sources is provided proximate to the peripheral edges of the unit so as to melt frits placed thereon, and cooled. In certain non-limiting implementations, the pre-heating and/or cooling may be provided in one or more steps. An oven for accomplishing the same may include multiple zones for performing the above-noted steps, each zone optionally including one or more chambers. Accordingly, in certain example embodiments, a temperature gradient proximate to the edges of the unit is created, thereby reducing the chances of breakage and/or at least some de-tempering of the substrates.

A method of making a vacuum insulating panel including a first substrate, a second substrate, a plurality of spacers provided in a gap between at least the first and second substrates, and a seal provided between at least the first and second substrates, the seal comprising a first seal layer, and optionally second and/or third primer layer(s). The method may include at least one of: (i) laser heating, using a laser beam from a laser, the first seal material for firing and/or sintering the first seal material to form the first seal layer, in a manner that causes TeO.sub.4>TeO.sub.3 in the first seal material to transform into TeO.sub.3>TeO.sub.4 due to said laser heating, whereby an amount of TeO.sub.4 decreases and an amount of TeO.sub.3 increases due to said laser heating, and/or (ii) laser heating in a manner that causes V.sub.2O.sub.5>VO.sub.2 in the first seal material to transform into VO.sub.2>V.sub.2O.sub.5 due to said laser heating whereby an amount of VO.sub.2 increases and an amount of V.sub.2O.sub.5 decreases due to said laser heating, so that after said laser heating the first seal layer comprises more VO.sub.2 than V.sub.2O.sub.5 by wt. %.

A vacuum insulating panel may include: a first substrate; a second substrate; a plurality of spacers provided in a gap between at least the first and second substrates, wherein the gap is at pressure less than atmospheric pressure; a pump-out/evacuation tube extending at least partly into an aperture in one of the substrates; and a pump-out/evacuation tube seal. The pump-out/evacuation tube seal may include at least one of: (a) from about 20-80 wt. % tellurium oxide, the tellurium oxide comprising TeO.sub.4 and TeO.sub.3, wherein the pump-out tube seal comprises more TeO.sub.3 than TeO.sub.4 by wt. %; and/or (b) tellurium oxide and from about 10-50 wt. % vanadium oxide, wherein the pump-out tube seal by wt. % comprises more tellurium oxide than vanadium oxide, and wherein the vanadium oxide comprises VO.sub.2 and V.sub.2O.sub.5, and wherein more V in the pump-out tube seal is in a form of VO.sub.2 than V.sub.2O.sub.5. A substantially donut-shaped laser beam may be used to heat pump-out tube material in order to form a pump-out tube seal.

The present invention relates to a technology of manufacturing vacuum-insulated glass in various sizes through a single type of manufacturing device, that is, a technology of extracting air in vacuum-insulated glass with a manufacturing device for extracting air from vacuum-insulated glass disposed as a device separately from the vacuum-insulated glass without an existing closed-type vacuum chamber for keeping vacuum-insulated glass. According to the present invention, there is an advantage that it is possible to manufacture vacuum-insulated glass of various sizes using a single type of manufacturing device. Further, according to the present invention, there is an advantage that it is possible to prevent deformation of a sealing cap even though a vent-hole is large.

Methods of forming a sheet glass product comprising a plurality of growth-limited glass bump spacers. According to the methods, a glass pane of the sheet glass product is irradiated with laser radiation to locally heat the glass pane at a plurality of spacer localities and induce growth of a plurality of glass bump spacers in the glass pane. The growth of the plurality of glass bump spacers is limited by utilizing a growth-limiting plate comprising a scattering surface portion. The scattering surface portion of the growth-limiting plate mitigates damage to the growth-limiting plate and may also mitigate damage to the glass pane. Vacuum insulated glass products and systems for forming a growth-limited sheet glass product are also provided.

Methods of forming a sheet glass product comprising a plurality of growth-limited glass bump spacers. According to the methods, a glass pane of the sheet glass product is irradiated with laser radiation to locally heat the glass pane at a plurality of spacer localities and induce growth of a plurality of glass bump spacers in the glass pane. The growth of the plurality of glass bump spacers is limited by utilizing a growth-limiting plate comprising a scattering surface portion. The scattering surface portion of the growth-limiting plate mitigates damage to the growth-limiting plate and may also mitigate damage to the glass pane. Vacuum insulated glass products and systems for forming a growth-limited sheet glass product are also provided.

Provided are a method for manufacturing a vacuum insulation glass panel and a device for closing a sealing cap, the method and the device being for exhausting air between two glass panels and sealing the same. The method for manufacturing a vacuum insulation glass panel, according to the present invention, heats the glass solder applied on the sealing cap before being put into a vacuum chamber, and then presses, by the operation of the elevating device, the sealing cap put into the vacuum chamber so as to join the sealing cap around the exhaust hole. The holder having the sealing cap is mounted in the clamping unit, and then the clamping unit is clamped to the glass panel assembly, thereby enabling the exhaust hole to be accurately closed with the sealing cap.