Titanium heat exchange tube welded argon shield device and using method thereof
A technology of argon gas protection and heat exchange tube, which is applied to the device, welding equipment, welding accessories, etc. for providing/removing protective gas, which can solve the problems of poor argon gas protection effect, unqualified product quality, and restricting the manufacture of titanium equipment. , to achieve the effect of ensuring process performance and mechanical performance, low cost and saving manufacturing cost
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[0018] Such as figure 2 As shown, the present invention provides a titanium heat exchange tube welding argon gas protection device, which has the following structures: a main body device 1, an O-shaped rubber sealing ring 3; the main body device 1 is tubular with an air inlet pipe at one end, and the other One end is airtight; the main device 1 has two-step bosses near the intake pipe: the diameter of the big boss is larger than the outer diameter of the heat exchange tube 2, and the diameter of the small boss is slightly smaller than the inner diameter of the heat exchange tube 2; the main device 1 is convex The side of the tube from the platform to the closed end is provided with small holes evenly distributed; the closed end of the main device 1 is provided with an annular groove, and an O-shaped rubber sealing ring is placed in the annular groove.
[0019] The number of small holes evenly distributed on the side of the tube is 8, and the diameter is φ6.
[0020] The main devic...
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