Method for sealing pump-out hole of vacuum glass, sealing structure and sealing device

摘要

A method for sealing the pump-out hole of vacuum glass comprises: first preparing metal layer which is bonded with the glass plate at the outside surface of the glass plate around the pump-out hole; and air-tightly welding the sealing element and the metal layer around the pump-out hole by metal brazing technology after pumping. A structure and a device for sealing the pump-out hole of vacuum glass are also provided. The method can seal the pump-out hole reliably and firmly; the sealing structure is stable and has long service life; the welding between the sealing element and the metal layer can be completed instantly and the properties of the glass materials will not be affected.

主权项

1. A method for sealing a pump-out hole of vacuum glass, wherein the method comprises the following steps:
1) preparing a metal layer bonded with a surface of a glass plate around the pump-out hole; and 2) air-tightly welding a sealing element and the metal layer around the pump-out hole by a metal brazing process after pumping to realize sealing of the pump-out hole; wherein a counterbore concentric with the pump-out hole is formed on the surface of the glass plate around the pump-out hole, and wherein the metal layer is prepared at the bottom of the counterbore, and the sealing element is positioned within the counterbore, and wherein a brazing material is inserted between the sealing element and the metal layer for the metal brazing process.