| 摘要 |
The device has a mobile point (17) moved between an extrusion position in which an end of the point is placed in contact with a mandrel (25), and a closing position, in a outlet conduit of an accumulator. A space (35) is formed between the end of the point and the mandrel. A mobile bush (18) is moved between another extrusion position in which the bush releases the conduit and another closing position in which the bush penetrates into the conduit around the point, in order to push a tubular shaped thermoplastic resin layer (34) present around the point into the space. The end of the point is remote from the mandrel when the mobile point is in the former closing position. An independent claim is also included for a method for manufacturing a hollow body. |
