The invention relates to a method for quickly preparing vacuum glass, which comprises the following steps: (1)
machining a semicircular groove on substrate glass or drilling a through hole on an upper slice of glass; (2) leaking and brushing
adhesive onto the substrate glass through a silk screen or a leaking plate to form point-shaped adhesives evenly distributed in interval with consistent size on the substrate glass; (3) scattering
solid supports on the substrate glass so that part of the
solid supports is adhered to the point-shaped
adhesive; (4) stacking glass
powder paste with
low melting point on a position with side difference H which is formed by the upper slice of the glass and the substrate glass and is between 2 and 8 millimeters; (5) putting the glass into a
heating furnace and heating the glass; and (6) sealing the glass by a hot-melting air suction
glass tube, slowly reducing the temperature of the glass to below 60 DEG C, and then discharging the glass to obtain the vacuum glass. The method adopts the side difference sealing and is characterized in that the heated low glass
powder paste fills in a gap of two pieces of glass and naturally levels under the
siphon action of the glass gap formed the
solid supports, the formed vacuum glass has the advantages of consistent
internal stress and external stress, good transparency and consistent intensity, and reduces the
breakage rate after evacuation; and the preparation method is quick and efficient, and is suitable for
mass production.