| 摘要 |
<p>A door frame (1) for an air handling unit is comprised of individual flat panels (10, 20, 30, 40) that are connected to form a rectangular structure by angle lugs (50, 60, 70, 80) provided at each corner. The angle lugs (50, 60, 70, 80) are provided with grooves into which tongues on the panels (10, 20, 30, 40) can slide. Adhesive is used to strengthen the connection between the angle lugs (50, 60, 70, 80) and the panels. The angle lugs (50, 60, 70, 80) are made from a low thermal conducting material such as acrylonitrile butadiene styrene to minimize condensation on external surfaces when in use.</p> |
