Surfacing welding method of nickel base alloy
A nickel-based alloy, welding bead technology, used in welding equipment, arc welding equipment, metal processing equipment, etc., can solve the problems of inability to adapt to industrial batch applications, low degree of automation, low efficiency, etc., and achieves excellent surfacing layer quality, High geometrical accuracy and the effect of solving welding efficiency
Inactive Publication Date: 2018-06-01
张宇
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Problems solved by technology
Although manual electrode welding or argon tungsten arc welding can also be used to perform surfacing operations on the surface of components, due to the low degree of automation and low efficiency, it cannot be adapted to industrial batch applications
[0004] Rare reports on automatic surfacing welding technology for nickel-based alloys suitable for small-sized components
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0048] The single-layer welding test was carried out, and the specific parameters are shown in Table 1.
[0049] The surfacing layer has a width of 60mm, a length of 2m, a thickness of 4.5mm, and a deposition rate of 70g / min.
[0050] See Table 2 for other qualities of the surfacing layer.
Embodiment 2
[0052] The single-layer welding test was carried out, and the specific parameters are shown in Table 1.
[0053] The width of the surfacing layer is 70mm, the length is 4m, the thickness is 4.6mm, and the deposition amount is 72g / min.
[0054] See Table 2 for other qualities of the surfacing layer.
Embodiment 3
[0056] The three-layer welding test was carried out, and the specific parameters are shown in Table 1.
[0057] The width of the surfacing layer is 55mm, the length is 6m, the thickness is 15.2mm, and the deposition amount is 74g / min.
[0058] See Table 2 for other qualities of the surfacing layer.
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Abstract
The invention relates to a surfacing welding method of nickel base alloy. The surfacing welding method comprises a wire-feeding machine, a swing device, a welding trolley, a power supply used for electroslag welding and a welding gun. An adopted nickel base alloy welding wire is featured by current of 160-250A, voltage of 28-34V, swing speed of 1.2-1.6m / min and swing width of 10-100 mm. After oneweld bead is finished, the welding trolley moves at 1.0-1.5mm and then surfacing welding operation is performed on a next weld bead. The deposition amount ranges from 60 to 80g / min. With the surfacingwelding method, advantages such as high dimension precision and great surface quality are obtained. The method can be applied to surfacing welding restoration of small-sized components and parts.
Description
technical field [0001] The invention relates to a surfacing welding method, which belongs to the technical field of welding, in particular to a surface surfacing welding method of a nickel-based alloy. Background technique [0002] Large-scale structures usually use submerged arc welding or electroslag welding with strip electrodes for surface surfacing or repairing of nickel-based alloys. However, due to the characteristics of large electrode size and large volume of tooling equipment, it is difficult to apply to the surface surfacing of small parts or structures. [0003] Nickel-based alloys are generally welded by argon tungsten arc welding, manual electrode and other methods; inert gas shielded welding is usually not used because the forming performance cannot be guaranteed. Although manual electrode welding or argon tungsten arc welding can also be used to perform surfacing operations on the surface of components, due to the low degree of automation and low efficiency,...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23K9/04B23K9/095B23K9/10
CPCB23K9/04B23K9/095B23K9/1006
Inventor 张宇
Owner 张宇