| 摘要 |
Between a bar-shaped mouthpiece and a distribution bar, tubes are placed which connect holes of the mouthpiece and the distribution bar for the flowing through of the melt. Pulling rods which are put under tension are anchored to the mouthpiece and the distribution bar and press these parts elastically against the ends of the tubes in such a manner that the nozzle components are elastically braced, yet remain flexible and can adjust freely to heat dilatations or inaccuracies which occur in fabrication or assembly. The nozzle components, above all the tubes are easy to obtain and to exchange, a circumstance that effects fabrication and operation in a favourable way. Due to the fact that the pulling rods enter the mouthpiece on the back side and are anchored therein, the mouthpiece can be designed very slender thus allowing for thin castings. |
