| 摘要 |
<p>In order to obtain a Pelton wheel (1) which offers a good compromise between mechanical features and costs, its manufacturing process comprises the following steps: a step in which a monolithic element (2) formed by the hub (3) and by a portion (4) of each blade (5) is produced, a step in which the remaining portion (6) of each blade (5) is executed in at least one piece and a step in which each portion (6) of blade (5) present on the hub (3) is fixed, by welding, to the corresponding remaining portion (6) of blade (5) executed separately. <IMAGE></p> |
