| 摘要 |
<P>PROBLEM TO BE SOLVED: To relax stress generated on a heat-affected zone. <P>SOLUTION: An excess welded part 5 is formed by groove-welding between base materials 2, 3 of high-chrome steel, and an expansion part 6 is formed by expanding the excess welded part 5 to both base materials 2, 3 sides and building a bead so as to cover the heat-affected zones 2a, 3a formed by groove-welding, and their peripheries. <P>COPYRIGHT: (C)2012,JPO&INPIT |
