2013-10-07 08:28:07 - Literature states: "The surface conditions of steel is called environment that can pipe insulation coating with the surrounding soil, the surface condition is different from four weeks to make the soil pipe so the pipe anti-corrosion layer is an important barrier to prevent soil erosion. "
This is the outer coating performance evaluation of the basic starting point. Joe Gordon England discussed the company's development pipeline coating systems from two different perspectives: the European view is that it can withstand moisture, prevent erosion, which is the "barrier" point of view. This view produced by the "PE" Act protective layer. The North American view is to enable oxidation resistance, chemical resistance and resistance to negative stripping to prevent corrosion, which is the "bonding" point of view. From this point of view, resulting in a "FBE" Law protective layer.
Another current trend is foreign both these views that the "barrier" and "bonded" into one, the development of a new point of view, about Europe's "PE" barrier protection layer
method and North America "FBE" Protection layer method combining the development of an integrated-type "3PE" Law protective layer. This new perspective, new processes, new methods in our country has begun to promote the use.
steel outer coating of the basic functions
First, the ERW steel pipe from the surface of the soil medium electrochemical corrosion, bacterial corrosion of the basic physical protection,
The second is to resist the movement of soil media creep stress, static stress and mechanical abrasion and other basic force protection methods and structures.
Natural gas pipeline outside the city use the basic principles of coating
a, good insulation properties and mechanical properties;
b, good resistance to cathodic stripping;
c, good resistance to water, gas permeability;
d, good chemical resistance properties and anti-aging properties immersion;
e, low temperature and high temperature performance;
f, easy to fill up the mouth and injury;
g, reasonable price.