| 摘要 |
<p>A process for producing a tube with a circumferential wall that can be pushed together, comprises injection molding a tube blank (10) composed of a body (11), a shoulder (14), and an outlet (18), using a hollow mold (37), a core (40) and a head section. The tubular blank is removed by pulling out the core while holding the blank at its head, and then pulling back the mold. The blank is released via the head section, and the open end is pressed flat and closed off. A sleeve is located between the core and the hollow mold. The hollow mold is provided with a lubricating coating, and the sleeve consists of a material which is plastically deformable.</p> |
