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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