| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for precisely and easily inspecting the flaw of a tube plate welded part by an eddy current inspection method. SOLUTION: In the method for inspecting the welded part of a heat transfer pipe and a tube plate by the eddy current inspection method, a conductor is wound to be formed into an almost disk shape and a probe, which has an exciting coil of which the inner diameter is larger than the outer diameter of the heat transfer pipe and the thickness becomes larger in the outer peripheral direction thereof so as to approach the welded part when arranged on the welded part to scan, and a detection coil is rotated and scanned on the tube plate welded part to inspect the flaw of the tube plate welded part. COPYRIGHT: (C)2010,JPO&INPIT
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