Laser cladding repairing technical method for labyrinth seal of turbine disc
A laser cladding and process method technology, applied in metal material coating process, coating and other directions, can solve problems such as the influence of personnel skill level, unstable repair quality, poor process stability, etc., to achieve good repeatability, avoid pores and The effect of poor fusion and full forming appearance
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[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0025] like figure 1 As shown, it is a schematic diagram of the structure of the turbine disc grate. Among the figures, Φ is the diameter of the turbine disc, and 1 is the sealing grate. GH4169 spherical alloy powder with the same powder particle size as the turbine disc body material is used as the cladding material;
[0026] Process method of the present invention is specifically as follows:
[0027] First, in the argon atmosphere protection box, install the turbine disk on the rotating and swinging working turntable, so that the center of the turbine disk and the center of the working turntable are coaxial;
[0028] Secondly, use acetone or absolute ethanol to wipe the grate teeth of the turbine disc to remove dirt; then, according to the inclination angle of the grate teeth, the working turntable is deflected at a certain angle,...
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