Power Sector Brochure - Cjc.dk

The Most Common Types of Wear80% of all machinery repair and maintenance costs arerelated to contaminated oilOil care is a must because up to 80% of all machinery repair and maintenancecosts can be traced back to contaminated system oils and fluids. This hasbeen substanciated by several independant analyses. The main cause iswear induced by contamination through solid particles, water and oil degradationproducts - which are not retained effectively by most inline filters.Particles“Sandblasting”When particles are transportedwith the oil flow, the particles collidewith metal parts, destroyingthe metal surface and formingnew particles.GrindingWhen clearance sized hardparticles are wedged betweenmovable metal parts, they destroythe metal surface further andcan result in additional wear.WaterCavitationCavitation occurs in areaswhere water is present and oil iscompressed. The water implodesand blows particles off the metalsurface, which then cracks.CorrosionWater or chemical contaminentsin the oil cause rust or chemicalreactions, which deteriorate thecomponent surfaces.Varnish/resinOil DegradationOxygen, water and high temperaturelead to oil degradation whichis the precursor of varnish/resin.The result of these deposits isa “sandpaper-like” surface onmachine parts.4