| 摘要 |
<p>A method for manufacturing a monolithic hollow body (1) by means of a casting or injection moulding process, the manufacturing method contemplating the steps of : producing at least one lost ceramic core (2) that reproduces the shape of at least one internal cavity (3) of the hollow body (1), introducing the ceramic core (2) inside a first mould (4) that reproduces in negative the external shape of the hollow body (1), feeding a molten material inside the first mould (4) by means of a casting or injection moulding process, letting the material inside the first mould (4) solidify, extracting the hollow body (1) from the first mould (4), and destroying and removing the ceramic core (2) located inside the hollow body (1).</p> |
