Ductile iron pipes anticorrosive process: 1.
Bituminous paint coating bituminous paint coating is used for conveying gas pipeline.
Spray paint on the pipe before preheating can improve the adhesion of asphalt paint, accelerate drying.
Cement mortar lining + special coating on the inner anti-corrosion measures suitable for transporting sewage pipeline, can improve the corrosion resistance of lining.
Epoxy coal tar coating epoxy coal tar coating was applied to gas pipeline, can also be applied to sewage pipe.
It is a kind of two-component coating, the coating has good adhesion and 4 very smooth surface.
Epoxy ceramic lining of ceramic epoxy lining applied to sewage pipeline and gas pipeline, but due to the manufacturing process is difficult, the cost is high, so there are some limitations on use.
Epoxy ceramic lined with high adhesion and bright and clean degree, is a kind of excellent corrosion resistant coating.
Coating or sulfate aluminate cement concrete coating of these two kinds of special cement coating are suitable for sewage pipe with the ductile cast
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pipe corrosion protection, improve the erosion ability of resistance to acid-base components in sewage.
Polyurethane coating is a kind of order to adapt itself to the requirements of environmental protection and development of a new type of green, the special coating, good wear resistance and corrosion resistance.
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com/cast iron suppliers
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