| 摘要 |
Device for vacuum tight soldering together a perimeter metal coating (5) of a transparent wall (4) to a perimeter metal frame (3) of a holding struct ure (2) of an evacuated solar collector (1), in particular a flat solar coll ector, said collector comprising a joining ribbon (6), preferably a soft met al strip or ribbon, in particular a lead and/or copper strip or ribbon, whic h is adapted to vacuum tight seal the gap (7) between said transparent wall (4) and said metal frame (3) and which is adapted to be soldered, in particu lar soft soldered, to said perimeter metal frame (3) and said perimeter meta l coating (5) of the transparent wall (4), said joining ribbon comprising a soldering alloy, said device comprising heating means (24) for heating: a fi rst part (5A) of said transparent wall (4) comprising at least a portion of said perimeter metal coating (5), a second part (3A) of said holding structu re (2) comprising at least a portion of said perimeter metal frame (3), and said joining ribbon (6) to at least the melting temperature of said solderin g alloy, when said transparent wall (4) is positioned in said holding struct ure (2) with said joining ribbon (6) overlapping at least partially said per imeter metal frame (3) and said metal coating (5), and pressure means (25) f or applying at least on said first (5A) and second (3A) parts and said joini ng ribbon (6) a force which guarantees a mechanical contact of the melted so ldering alloy to said metal frame (3) and said metal coating(5) throughout t he solidification process of said soldering alloy. |
