Dissimilar metal material pipeline welding device
A welding device and technology for dissimilar metals, applied in welding equipment, metal processing equipment, high-frequency current welding equipment, etc., can solve the problems of difficult welding quality, expensive equipment, high welding contact requirements, etc., and achieve the goal of improving heating efficiency and heating temperature Uniformity, accelerated heating rate, and cost-saving effects
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Embodiment 1
[0024] Such as Figure 1-Figure 3 As shown, a pipe welding device 100 of dissimilar metal materials in this embodiment is used for welding coaxial first pipe 1 and second pipe 2 of different metal materials, including: a support sleeve assembly, a heat insulation assembly and High frequency induction heating coil 30 .
[0025] The first pipe 1 is a copper pipe with a tapered front end, the second pipe 2 is an aluminum pipe, and the tapered portion of the first pipe 1 is inserted into the second pipe 2 .
[0026] A hydraulic cylinder (not shown in the figure) is connected to the tail end of the first pipe 1 for applying pressure F to the first pipe 1 .
[0027] The first pipe 1 passes through the upper support sleeve 11 of the first pipe, the lower support sleeve 12 of the first pipe, and a baffle plate 40 for making the stress on the first pipe 1 more uniform is arranged between the hydraulic push rod of the hydraulic cylinder.
[0028] A stopper (not shown in the figure) is...
Embodiment 2
[0055] Such as Figure 4-Figure 6 As shown, this embodiment has a support sleeve assembly, a heat insulation assembly, and a high-frequency induction heating coil 30 . Compared with Embodiment 1, the upper middle support sleeve 19 and the lower middle support sleeve 110 of this embodiment are different, having the following structure:
[0056] The inner side of the upper middle support sleeve 19 and the inner side of the lower middle support sleeve 110 are provided with a channel with a larger radius on the left and a smaller radius on the right. liquid.
[0057] The radius of the left part of the hole is larger than the outer radius of the first pipe 1 , and the radius of the right part of the hole is the same as the outer radius of the first pipe 1 .
Embodiment 3
[0059] The structure of this embodiment is the same as that of Embodiment 2. There is a gap between the upper middle support sleeve 19 and the lower middle support sleeve 110 for discharging the copper-aluminum eutectic liquid, and the upper middle support sleeve 19 and the lower middle support sleeve respectively 110 is provided with grooves (not shown in the figure), two grooves are arranged on the left side of the junction of the first pipe 1 and the second pipe 2, and the groove on the upper middle support sleeve 19 is larger than that of the lower middle support sleeve 110 grooves are used to make the eutectic liquid flow out better when it flows upwards.
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