Anticorrosion treatment of nodular cast iron pipe

1. asphalt paint coating

Asphalt paint coating is used to transport the gas pipeline. Ductile cast iron Preheating the pipe before spray painting can improve the adhesion of asphalt paint and accelerate the drying process.

2. cement mortar lining + special coating

The internal corrosion protection measures can be applied to the pipeline, which can improve the corrosion resistance of the inner lining.

3 .epoxy coal tar coating

Epoxy coal tar coating is not only suitable for gas pipeline, but also for sewage pipeline. It is a two-component coating, the coating has a high adhesion and very smooth surface.

4. epoxy ceramic lining

Epoxy ceramic lining is suitable for sewage pipe and gas pipe, but because of the difficulty in manufacturing process, the cost is high, so there are some limitations in the use of. Epoxy ceramic lining with high adhesion and finish, is a kind of excellent corrosion protection.

5. Coating or sulfate aluminate cement concrete coating

These two kinds of special cement coating are suitable for sewage pipe with the ductile cast iron pipe corrosion protection, improve the erosion ability of resistance to acid-base components in sewage.

6. Pu 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.