The rotor discharge the role of the main consequences
DATE：2019/6/24 14:05:46 HITS：652
(1) in the discharge region of molten metal particles, and an insignificant galvanic corrosion pits are formed in the metal surface;
(2) accumulation of the pit so that the surface becomes rough and dull, the event will be generated in the bush purely mechanical wear and tear;
(3) of the molten metal particles into the lubrication system, the lubricant contamination, deterioration of the lubrication performance of the entire lubrication system, but also contain a large number of fine metal particles of the lubricant will reduce the film resistance, to accelerate the spark erosion progress;
(4) The local high temperatures generated in the bearing load zone, the destruction of the oil film, burned the metal, increased wear, eventually causing severe friction damage.
The rotor system of a rotary machine, a portion of the spark discharge occurs most easily is the radial bearings and thrust bearings of the bearing surface, working tooth surface of the gear coupling, and the floating ring seal face, these positions due to the operation of the multi changes in the kinds of conditions (such as load, temperature, lubrication conditions and rotor vibration, etc.), are likely to make the film and the air gap resistance decreases, caused in these parts of the spark discharge phenomenon.
