| 摘要 |
PURPOSE:To improve the efficiency of edge welding with good finish accuracy in build-up welding of the top end of the projecting line part of a turbine blade, etc. by forming a build-up spacing to the upper part of the projecting line by a pair of blocks facing each other and packing a deposited metal into the spacing. CONSTITUTION:The build-up spacing is formed in the upper part of the projecting line 1 by a pair of the blocks 4, 5 facing each other and a heat-resistant and wear-resistant material is build-up welded 9 to the upper part of the projecting line 1 in said space. The projecting line 1 and the deposited metal 9 are cooled by the cooling blocks and therefore the deformation of the projecting line 1 is prevented, the shape of the deposited metal is stabilized and the finishing accuracy and working efficiency are improved. The blocks 4, 5 may be cooled with water if necessary.
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