| 摘要 |
<p>Process for the production of a channel-section glass element (30) with two flanges (32, 33) and a web formed between the flanges (32, 33), which comprises the following steps: a) making available a flat glass ribbon (5) by means of two cylindrial draw-in rollers (3, 4) disposed at the exit of a glass melting furnace (1) b) adjusting the temperature of the web (31) to a web temperature at which the web (31) is still plastically deformable, c) adjusting the temperature of the flanges (32,33) to a flange temperature which is lower then the web temperature, d) erecting the flanges (32,33) at the edges of the glass ribbon (5) e) profiling the web (31) with the aid of two web profiling rollers (14,15), in such a way that the web (31) has a corrugated cross-section, f) cooling the channel-section glass element (30). A device for the production of a channel-section glass element (30) is also disclosed, furthermore a channel-section glass element (30) producible by such process and device and its use.</p> |
