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随着工业的日益发展,钛材的需要愈来愈多。钛材产品质量的好坏,在很大程度上取决于焊缝的质量优劣。因此,在整个加工过程中,焊接是一个重要的环节。钛材化学活泼性很强,在高于400～600℃时,能与空气强烈反应。为得到优质的焊接接头,不仅要可靠地保护焊接溶池的液态金属,而且要保护好高于400～600℃的热影响区,使其不受空气污染。焊缝反面也需要加以保护。一般情况下是在普通喷咀的氩弧焊把后面再加一个保护拖罩,并要在两个方向 (平焊) 或三个方向 (角焊) 进行充分保护,这才能获得比
With the continuous development of industry, titanium needs more and more. Titanium product quality is good or bad, largely depends on the quality of weld quality. Therefore, welding is an important part of the entire process. Titanium chemical activity is very strong, above 400 ~ 600 ℃, with strong reaction with air. In order to obtain high-quality welded joints, not only the liquid metal in the weld pool must be reliably protected, but also the heat-affected zone above 400-600 ° C should be protected from air pollution. The reverse side of the weld also needs to be protected. Under normal circumstances is the general nozzle after the argon arc welding plus a protective drag, and to be in both directions (flat welding) or three directions (fillet) for full protection, which can be obtained than