| 摘要 |
<p>Removing condensed water from mixer covers for preparing plastics A wiper arm, with only a narrow clearance beneath the lid consists of two telescopic profiles with open upper sides, the inner profile forms a channel with the lid connec ted to the open air through a central double-walled shaft opening and a pre-connected heating zone. The channel between the profiles is connected to the suction end of a ventilator through the jacket space of the double walls.</p> |
