Electro-beam welding method of niobium alloy and titanium alloy thick plate
A technology of electron beam welding and titanium alloy, which is applied in the direction of electron beam welding equipment, welding equipment, welding equipment, etc., can solve the problems of plate warping and deformation, and achieve the problems of warping deformation, good penetration and smooth weld seam Effect
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[0033] Second preferred embodiment
[0034] The process steps of the electron beam welding method of the niobium alloy and the titanium alloy thick plate described in this embodiment are substantially the same as the first preferred embodiment. However, Nb521 alloy with a thickness of 7.4 mm and a length of 300 mm was butt welded with TC4 alloy. Similarly, first use the same method to process the welding surfaces of the two welding parts, and finally process the welding surfaces of the two welding parts to a smooth surface with a roughness Ra≤1.6μm and perpendicular to the adjacent surfaces of the plate; Prepare acid solution for pickling. The difference is that the acid solution for pickling Nb521 niobium alloy thick plate is made of HF, HNO 3 And H 2 O is mixed and prepared in a volume ratio of 1:5:10; the acid solution for pickling TC4 titanium alloy thick plates is made of HF, HNO 3 And H 2 O is mixed and prepared in a volume ratio of 1:5:10. The pickling reaction time is 10 m...
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