An electron beam welding method for an ultra-supercritical partition
An electron beam welding and ultra-supercritical technology, which is applied in the field of steam turbines, can solve the problems of difficulty in ensuring welding quality, difficulty in welding seam cleaning, and difficulty in welding seam forming, and achieves the advantages of less difficulty in welding, reducing the probability of repairing, and improving welding quality. Effect
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[0018] Specific implementation mode 1: Combination Figure 1 ~ Figure 3 It is explained that an electron beam welding method for an ultra-supercritical separator of this embodiment is implemented in the following steps:
[0019] Step 1. Scribe: draw a horizontal mid-surface line on the inner plate body 3, outer plate body 2 and tooling (according to the design requirements), and draw a horizontal mid-surface line on the leading and end guide vanes (The marking must be clear) and punch the eye at the corresponding position for observation (the corresponding position refers to the horizontal mid-faceted line drawn, and punch the eye on the line, so that the trace is clear and easy to observe during electron beam welding, otherwise the line is drawn Can't see when welding machine);
[0020] Step 2. Assembly: According to the line drawn in step 1, assemble the outer plate 2 on the tooling, and use the outer plate 2 as the positioning reference. After the guide vane 1 is placed, the in...
Example Embodiment
[0035] Embodiment 2: In step 6 of this embodiment, the acceleration voltage during preheating is 55KV, the welding speed is 800mm / min, the electron beam current is 50mA, the focusing current is 1550mA, and the scanning swing of the electron beam in the X direction is 0, the scanning swing of the electron beam in the Y direction is 0, and the gun distance is 320mm;
[0036] The acceleration voltage during sealing is 55KV, the welding speed is 250mm / min, the electron beam current is 85mA, the focusing current is 1850mA, the scanning swing of the electron beam in the X direction is 0, and the scanning swing of the electron beam in the Y direction is 0 , The gun distance is 320mm;
[0037] The acceleration voltage during welding is 55KV, the welding speed is 250mm / min, the electron beam current is 210mA, the focusing current is 1850mA, the scanning amplitude of the electron beam in the X direction is 0, and the scanning amplitude of the electron beam in the Y direction is 0. The gun d...
Example Embodiment
[0040] Specific embodiment 3: In step 6 of this embodiment, the acceleration voltage during preheating is 55KV, the welding speed is 400mm / min, the electron beam current is 80mA, the focusing current is 1550mA, and the scanning swing of the electron beam in the X direction is 0, the scanning swing of the electron beam in the Y direction is 0, and the gun distance is 320mm;
[0041] The acceleration voltage during sealing is 55KV, the welding speed is 300mm / min, the electron beam current is 85mA, the focusing current is 1850mA, the scanning swing of the electron beam in the X direction is 0, and the scanning swing of the electron beam in the Y direction is 0 , The gun distance is 320mm;
[0042] The acceleration voltage during welding is 55KV, the welding speed is 250mm / min, the electron beam current is 210mA, the focusing current is 1850mA, the scanning amplitude of the electron beam in the X direction is 0, and the scanning amplitude of the electron beam in the Y direction is 0. ...
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