TOPTIG welding gun posture parameter value verification method for multi-layer welding of butt joint of thick-walled pipes
A technology of butt joints and attitude parameters, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as high cost, affecting welding quality, and low efficiency, so as to avoid cumbersome steps, improve design efficiency, and reduce The effect of defect rate
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[0037] The present invention will be described in further detail below in conjunction with the examples.
[0038] When adopting the TOPTIG welding gun posture parameter value verification method of thick-walled pipe butt joint multi-layer welding of the present invention to test, the bottom radius R=49mm of the groove of the thick-walled pipe to be welded, the welding gun model used is TOPTIG180, the welding wire of this welding gun Inclination angle β=20°.
[0039]First, when rooting welding is used for the first layer welding, welding current I=140A, shielding gas flow S=8L / min, welding torch height h=4mm, and k=1.02 is selected according to step one.
[0040] For the first layer of bottoming welding bead, under the premise of ensuring that the welding torch posture can actually reach the weld seam, given the welding torch posture angle θ=0°, welding torch offset distance d=-10mm, the above parameters are substituted into the welding torch posture function In the expression...
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