Verfahren zur Herstellung eines vakuumdichten Verbundes zwischen einer Glasscheibe und einem Metallrahmen sowie Glasscheibenverbund

(A1) Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung eines vakuumdichten Verbundes zwischen einer Glasscheibe und einem Rahmen, der durch ein thermisches Lotmaterial gebildet ist, und direkt durch einen Loetprozess, bei dem ein zwischen den Rahmen und die Glasscheibe eingebrachtes Lotmaterial zum Aufschmelzen gebracht wird, herstellbar ist. Dabei erhaelt die Glasscheibe waehrend des Herstellungsprozesses die Eigenschaften einer Einscheibensicherheitsglasscheibe (ESG) gemaess DIN 12150-1.

DE 102008025945 A1 UPAB: 20091222 NOVELTY - The method for the production of a vacuum tight edge connection between a glass pane (1) and a first frame (2) arranged in the edge area on the first side of the glass pane and/or a second frame arranged in the edge area on the second side of the glass pane, where the first and second frames are dimensioned so that it put on the edge area of the first side of the glass pane rotating with a part of its area, comprises partially applying a liquefiable soldering material on supporting surface of the first frame and/or first and/or second side of the glass pane. DETAILED DESCRIPTION - The method for the production of a vacuum tight edge connection between a glass pane (1) and a first frame (2) arranged in the edge area on the first side of the glass pane and/or a second frame arranged in the edge area on the second side of the glass pane, where the first and second frames are dimensioned so that it put on the edge area of the first side of the glass pane rotating with a part of its area, comprises partially applying a liquefiable soldering material on supporting surface of the first frame and/or first and/or second side of the glass pane, subjecting the glass pane with the first side of the first frame so that the support surface remains between the first side of the glass pane and the first frame, subjecting the second frame on the second side of the glass pane so that the supporting surface remains between the second side of the glass pane and the second frame, heating the arrangement of the first frame, glass pane and the second frame at a temperature in which liquefaction of the soldering materials is guaranteed so that the liquefied soldering material forms a rotating film between the first frame of the glass pane and the second frame and/or sufficient cooling of the holding connection so that the pane after cooling of the material characteristics has a single disk safety glass according to DIN 12150-1. The soldering material has a transition temperature of 300-550 degrees C as powder, as powder in a carrier fluid, as paste and/or as a cord. The solder material is glass solder material and/or metal solders. The solder material has a thermal expansion coefficient of 8-11 (in 10-6/K) at 20-300 degrees C. The first and/or the second frame consists of ferritic whose thermal expansion coefficient of maximum 6 of thermal expansion coefficient of solder material. The first and/or the second frame consists of ferritic chromium steel. The first and/or the second frame is subjected to heat treatment at 500-800 degrees C before applying a liquefiable soldering material, and/or an adhesive layer is subjected in the area of the support surface of the first and/or the second frame made of organosilicon component, silanes, silicon dioxide, silicates, metal oxides such as titanium dioxide, zirconium dioxide, spinel, Perowskite and/or aluminum oxide. The arrangement is subjected after cooling with compressive stress. The heating is carried out at 550-650 degrees C for 1-10 minutes. The cooling is carried out after subjecting the arrangement with cold air at below 350 degrees C within a time span of 0.5-1 minute. An INDEPENDENT CLAIM is included for single disk safety glass pane. USE - Method for the production of a vacuum tight edge connection between a single disk safety glass pane and frames, where the glass pane is useful as vacuum-insulation glass, technical glass, cover glass, safety glass and/or for vacuum solar collectors (claimed). ADVANTAGE - The method ensures efficient and economical production of a vacuum tight edge connection between a glass pane and frames.