How to deal with the contamination inside the hydraulic system?
The most dangerous pollution in the hydraulic system is the pollution produced by the system itself. These pollutants are hardened by "cold work" to higher hardness than the surfaces they come from, and are destructive to the surface wear of the system.
In the operation of the system, all components (especially pumps) produce a small amount of particles, and if the particles can not be filtered out in time, the increase of pollution will increase the amount of new particles to a very high acceleration. The forms of pollution are as follows: particle wear produces pollution. Hard particles are embedded between the two moving surfaces, and debris is cut on the surface.
Adhesion wear produces contamination. The loss of oil film on the surface of the moving body causes it to contact directly, forming abrasion and producing particles.
Pollution caused by fatigue wear. The surface stress concentration or micro cracks into the gap caused by the dangerous area due to particles, repeated stress extended to peel.
Contamination due to erosion wear. Fine particles in the high velocity fluid flow away from the throttling edges or key surfaces.
Cavitation erosion produces pollution. The flow of the pump inlet is blocked and the cavitation is caused by the impact of the cavitation.
Corrosion wear produces pollution. The oil in the water or chemical pollution caused by corrosion or chemical reaction, make the surface from bing.
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