| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a marine propeller in which an erosion-resistant material is mounted as an inexpensive erosion countermeasure on a part where erosion is easily generated based on cavitation. <P>SOLUTION: In the marine propeller 1 in which a plurality of blades 3 are radially projected from an outer circumference of a boss 2, roots are embedded in the outer circumference of the boss 2 at which the blades 3 are located in a non-extractable manner, erosion-resistant materials 5 are slightly projected in the radial direction, and the roots of the blades 3 are built in the erosion-resistant materials 5 from the erosion-resistant materials 5, and projected in a non-extractable manner. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
