| The hydraulic system's oil is very important for the assumable running of whole equipment. If the system had set up completeness, the system was closed when it is running. If it can not answer for cleaning standard when it is be fixed or adjusted(GB/T14039-93,ISO 4406-87,NAS1638-64is standard). Because of oil pollution. The whole hydraulic system equipment(gear pump, laminate pump),Magnetic valve unit,,valve unit,oil cylinder would have been abrasion that it is abnormal, it can endanger the safe running of whole equipment .Especially make the machine stop running.For the heavy industry's large hydraulic system, the pump unit and terminal are connected by hydraulic pressure piping. Now the flush oil technique has some experience on engineering, but it is not analysis and pitching. Now the hydraulic system is used to engineer very largeness, and we have some experience from shipbuilding. We would analyzed and comparedhydraulic pressure piping's flush oil work. We dispart some reasons including design,material,part,equipment,fixing flush oil pace,pressure test and so on. we can find one new flush oil technique during improving, the new technique can help us for hydraulic system engineer.Mostly work and production for this text: 1,Research actual flush oil cleaning for hydraulic steel pipes, master a few of mature techniques about flush oil cleaning at present.2,analyze and compare with factors influence the cleaning degree of flush oil , improve the oil flush technical. used in actual project, save cost, heighten efficiency shorten production cycle.3,Consider to actual project, improve and design a new oil flush cleaning equipment, Used in shipyard and get good effect.
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