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    You now:Home > English > Lining repairing branch > Technology introduction > Smearing lining repairing technology
    1、Technilogical Principle
     
        Coating Rehabiliatation is an inside Rehabiliatation applyingh extrusion coating device powered by compressed air,to perform the design coating thickness,and in turn complete the pipeline anti-corrosion and reiforced rehabilitation.
     
    2、Process
    3、Features  
     
    (1) 
     
    (2)  According to experiment,the bond between steel pipes and  Polymer cement mortar  can sustain a pressure of 0.2 MPa;1.0 MPa and above between Epoxy grout and Polymer cement mortar,11.7 mpa new paiting material and Epoxy Grout.It can keep functioning for 5000hrs without any disshape under 80°C heat and 2mpa pressure.And also,it can sustain 2 hrs'pressure maintain from 0.4--1.6mpa without leaking. 
     
    (3)   High Bond Strength
     
    Between Lays
    Bong Strength
    Polymer cement mortar& Steelpline
    0.2mpa
    Epoxy Grout&Polymer cement mortar
    >1.0mpa
    New Pait&Epoxy Grout
    11.7mpa
     
    (4)Good Corrosion Resistence
     
    Medium
    Tempreature
    Pressure
    Time
    Phenomenon
    Oil+Sewage
    80°C
    2Mpa
    5000hr
    None
     
    (5)Good Pressure Resistance
     
    No.
    Pressure(mpa)
    Time
    Worksite
    1
    0.4
    2hr
    NO Leakage
    2
    0.8
    2hr
    No Leakage
    3
    1.6
    2hr
    No Leakage
     
    (6)Repairing over 2km old pipelines at one time,it can consecutively pass bends&Links of 15D.Symple to operate,less euipement devotion,the operation cost is 60& less than buuilding a new pipeline. 
     
    4、Operation Pictures
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