| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress erosion of a structural material, which is caused by liquid droplets, and achieve a short operation period of welding and cost reduction. <P>SOLUTION: A build-up welding method for the structural material used in an erosive environment includes: removing a portion exposed to the erosive environment from the structural material; and forming a hard layer 15 in a portion of the structural material, from which the portion exposed to the erosive environment is removed, the hard layer being formed by short circuiting transfer gas metal arc welding using a solid wire with a hardness of HV 400 or more. <P>COPYRIGHT: (C)2012,JPO&INPIT |
