| 摘要 |
<p>The invention relates to a flange profile (1) for attachment to abutting air channel elements and for receiving angle brackets for forming an assembly frame. According to the invention, the flange profiles have an essentially L-shaped cross-section. An L-limb (2) is profiled as a double-walled (3, 4) limb, which is open on one side and which is provided for overlapping the edge areas of the air channel elements, and the other limb (5) is profiled as a hollow cavity (8) for receiving a limb of an angle bracket. In the transition area of both of these limbs (2, 5), a backward folding (9a, 9b) by 180 DEG forms a double wall, which separates both limbs and which touches one of the wall areas (6, 7) with its backward folded lug. The aim of the invention is to achieve a greatest possible tightness in the transversal or longitudinal direction of the profile. To this end, the wall area (6 or 7) and the backward folded lug (9a or 9b) are joined to one another by means of a laser weld seam (10).</p> |
