| 摘要 |
<p>Process for forming hollow objects (41) in elastomer, especially hot water bottles, by injecting the material into the two chambers (29-31), (30-32) formed between two half dies (11), (12) and an intermediate core (13) each chamber (29-31), (30-32) being connected by a lateral channel (27), (28) respectively to the one mouth (25) and the other (26) of a transversal feed hole (24) passing through the core (13) to which the material flows in by means of an internal branch duct (23), there being in each of the half dies (11) and (12), in the zone corresponding to the one mouth (25) and the other mouth (26) of the feed hole (24), a recess (33), (34) whose outer hole is smaller than its internal volume, the purpose of which is to prevent, by reaction of the material that penetrates within it, the two halves (35-36), (37-38) of the hollow object (41) from becoming detached from the two half dies (11), (12), at the moment when the core (13) is removed to pass on to the stage of curing.</p> |
