| 摘要 |
PROBLEM TO BE SOLVED: To enhance both stress corrosion cracking resistance and welding workability. SOLUTION: In a welding method for joining pipes 11A, 11B, short rings 13A, 13B in each of which a weld metal 12 having the excellent stress corrosion cracking resistance is subjected to build-up welding are prepared. After the short rings 13A, 13B are welded to each groove part 14 of the pipes 11A, 11B, the short rings 13A and 13B are welded together, and the weld metal 12 is subjected to build-up welding on one side of inner or outer surface of the pipes 13A, 13B, or on both sides of the inner and outer surfaces thereof. COPYRIGHT: (C)2009,JPO&INPIT
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