| 摘要 |
PROBLEM TO BE SOLVED: To provide a sinter cake support stand which prolongs the stand replacement cycle and provides for extended stand life and which consequently can contribute to improved productivity in the manufacture of sintered ore. SOLUTION: A composite hardfacing welding wire is disclosed which has a weld metal 4 formed by cladding by welding of a composite wire made from a low carbon steel hoop and a filler, around the upper edge part in contact with the sinter cake of a blade part 1. The wire includes, by mass%, 3-6% C, 0.8-2% Si, 20-30% Cr, and 4-8% Mo, and further includes either 3-8% Nb and≤0.4% (including 0) B or≤8% (including 0) Nb and 0.2-0.4% B, the remainder being Fe, Mn and inevitable impurities. COPYRIGHT: (C)2010,JPO&INPIT |
