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  When the hydraulic system is working, the pipeline has to withstand high pressure, coupled with the combined effects of alternating stress caused by unstable pressure, vibration stress caused by equipment vibration, assembly stress, etc., the hard pipe will have stress concentration at material defects, corrosion points or damage.Rolled tubeThe pipeline suffered fatigue damage and fracture, resulting in oil leakage. For rubber pipelines, aging, hardening and cracking will occur in places with high temperature, high pressure, severe bending and distortion, and then the pipeline will burst and leak oil. Long hydraulic steel pipe.
       During maintenance, for newly replaced pipes, the manufacturer, date, batch number, specified service life and whether there are any defects should be carefully checked. Rolled pipes that do not meet the regulations must not be used. During use, always check whether the pipelines are worn or corroded; if serious cracks, hardening or bubbling are found during use, they should be replaced in time.