| 摘要 |
In a process for injection moulding an article with a core and an outer layer of thermoplastics, which article has at least two dome-shaped walls connected by a plate, the plastics are injected one after the other through injection openings (41, 42) into regions (24, 25), corresponding to the dome-shaped walls, of a mould cavity (23) under conditions of throughput, duration and synchronisation of the start of injection such that, at a specific time (t3) the total volume of plastic injected for the outer layer corresponds to the specified volume of this plastic in the finished article and the individual volumes correspond to the distribution of the total volume in the finished article, and such that, at a respective time (t5, t4), the volume of plastic injected for the core corresponds to a specified distribution of a predetermined volume of this plastic in the finished article, the plastic streams also filling the region (26) of the mould cavity (23) corresponding to the joining plate.
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