In order to avoid the occurrence of the above, non-fusion technologies.
为了避免上述情况的发生，非融合技术应运而生。
2
The transverse crack in surfacing layer, porosity in bead edge and non-fusion between layers are the defects that are liable to produce when multi-layer surfacing is used.
多层堆焊时，易产生堆焊层横向裂纹、焊道边缘气孔及层间结合不良等堆焊缺陷。
3
Analyses the cause for the crack resulting from the non-fusion in the longitudinal weld seam of a power plant boiler cylinder, and suggests corrective actions to eliminate the defect.