| 摘要 |
A method for manufacturing a tank made of plastic material of a heat exchanger, provided with a gasket made of elastomeric material on a perimetral edge thereof. The method comprises the steps of: injecting a first plastic material in a first-injection seat (22) with a first slider (24), a second slider (30), and a third slider (32) in respective positions of first injection, solidifying the injected plastic material, displacing the first slider (24), second slider (30), and third slider (32) towards respective positions of second injection, and injecting elastomeric material in a second-injection seat (44, 38) formed by the movement of said first slider (24), said second slider (30), and said third slider (32) towards the respective positions of second injection.
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