| 摘要 |
<p>A process for manufacturing an air flow assembly (10) having a valve disc (16) within a bore. A first support (29) is inserted into the bore from below the valve disc, and a second 'floating' support (26) is inserted from above the disc. The second support floats relative to the disc upon a fluid receiving member such as an inflatable bellows. As the fluid receiving member allows the second support to float when contacting the disc, any inconsistencies of the disc are compensated by the 'floating' second support. As the disc is squeezed between the supports heat conducted from heaters causes the material of the disc to be extruded radially outwardly into contact with the bore to obtain a consistent thickness at the disc outer periphery.</p> |
