| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an impeller for a radial flow compressor, formed of base material comprising thermosetting alloy including at least Al and Cu, with increased thermal strength in an outlet range of compressed gas. <P>SOLUTION: An outside part of the impeller is formed of additive material 3 and 17 comprising heat-resistant alloy including Al forming gradient material with base material 2 and 16. Strong coupling effect is generated between the base material and the impeller by means of the gradient material. A radial flow impeller having excellent durability and heat resistance is thus manufactured. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
