| 摘要 |
<p>Disclosed is a method for extruding plastic parts. In said method, the still viscous, hot plastic is exposed to a vacuum prior to the extrusion process such that gases that can sublimate and, optionally, gases that cannot sublimate and/or condensible gases are withdrawn from the plastic. In order to prevent said gases from entering the vacuum device (11) along with the depositions thereof, the withdrawn gases that can sublimate are cooled such that the gas sublimates. The remaining components can be filtered out in a second stage.</p> |
