| 摘要 |
PROBLEM TO BE SOLVED: To improve the yield of a rotor work. SOLUTION: A mark 14 is engraved on a compressor wheel 6. Since it shows no irregular color or loosing of color contrary to ink, there is no displacement between an unbalance position in measuring of balance with the mark 14 as a reference and a correction position in correcting of balance with the mark 14 as a reference. So, the balance of the compressor wheel 6 is precisely corrected, and impellers 9 and 10 are not cut, resulting in improved yield of the compressor wheel 6. COPYRIGHT: (C)2004,JPO
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