The flux coatings major task is to vaporize and form a shielding gas to protect the weldpuddle from nitrogen, hydrogen and oxygen.
通量涂料主要任务是蒸发,形成保护气体保护焊水坑由氮气,氢气和氧气。
3
The problems such as fissure of displacement, slit nonuniform and weldpuddle flowing etc at the case of assembling and welding on orbital slit of pressure vessel are analyzed.