Double-layer intermediate transition welding method for titanium steel composite plate
A welding method and composite plate technology, which are applied in welding equipment, welding medium, welding equipment, etc., can solve the problems of structural incompleteness and inability to bear dynamic loads, and achieve the effect of avoiding crack sources, simple design, and good portability.
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Embodiment 1
[0042] It is suitable for welding 4+40mmTA2 / Q235 titanium steel clad plate, the specific welding process is as follows:
[0043] 1. In the process of groove processing, it is not a symmetrical X-shaped groove, but the junction point is moved down 3mm from the titanium-iron interface to the carbon steel side, so that the joint surface is clearer, which is convenient for the welding of the middle layer material, and avoids For element diffusion, the one-sided angle α of the titanium layer is 45°, and the one-sided angle β of the carbon steel layer is 30°.
[0044] 2. Before welding, use an angle grinder to remove the oxides in the area to be welded on the carbon steel side, and clean it up. Prepare to use manual arc welding to weld the carbon steel side. Use an E5015 electrode with a diameter of 4mm. The welding parameters are as follows: The welding current is 180A, the voltage is 23V, and the welding speed is 150mm / min. The welding quality is good and meets the welding require...
Embodiment 2
[0053] This embodiment is applied to the welding of 2+10mmTA1 / Q345 titanium steel clad plate, the specific process is as follows:
[0054] 1. In the process of groove processing, instead of opening a symmetrical X-shaped groove, it moves down the titanium-iron interface to a thickness of 1.5mm, making the joint surface clearer, facilitating the welding of the middle layer material, avoiding the diffusion of elements, and ensuring Mechanical properties of the carbon steel side.
[0055] 2. Before welding, first use an angle grinder to remove the oxides on the carbon steel side to be welded, and clean it up. Prepare to use gas shielded welding to weld the carbon steel side. Use ER70S-6 welding wire with a diameter of 1.2mm to protect The gas is 80% argon + 20% carbon dioxide gas, and the welding parameters are as follows: welding current is 150A, voltage is 23V, welding speed is 140mm / min, the welding quality is good, and meets the welding requirements of the next step.
[0056...
Embodiment 3
[0064] This embodiment is applied to the welding of 2+12mmTA1 / Q345 titanium steel clad plate, the specific process is as follows:
[0065] 1. see image 3 , in the process of groove processing, K-shaped groove is opened, and the junction point is moved down 2.0mm thick at the titanium-iron interface, which makes the joint surface clearer, facilitates the welding of the middle layer material, avoids the diffusion of elements, and ensures the mechanical strength of the carbon steel side. performance.
[0066] 2. Before welding, first use an angle grinder to remove the oxides on the carbon steel side to be welded, and clean it up. Prepare to use gas shielded welding to weld the carbon steel side. Use ER70S-6 welding wire with a diameter of 1.2mm to protect The gas is 80% argon + 20% carbon dioxide, and the welding parameters are as follows: welding current is 150A, voltage is 23V, welding speed is 150mm / min, and the welding quality is good, which meets the welding requirements o...
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