Asphalt paint coating
Asphalt paint coating is used to transport gas pipelines. Preheating the pipe before painting can improve the adhesion of asphalt paint and accelerate drying.
2. Cement mortar lining + special coating
This kind of internal anti-corrosion measure is suitable for sewage pipelines, which can improve the corrosion resistance of the lining.
3. Epoxy coal tar pitch coating
epoxy coal tar pitch coating is not only suitable for gas pipelines, but also for sewage pipelines. It is a two-component coating that has high adhesion and a very smooth surface
. 4. Epoxy ceramic lining
Epoxy ceramic lining is suitable for sewage pipes and gas pipelines, but due to the difficult manufacturing process , The cost is high, so there are certain limitations in use. Epoxy ceramic lining has high adhesion and smoothness, and is an anti-corrosion coating.
5. Aluminate cement coating or sulfate cement coating
these two kinds of special cement coatings are suitable for the internal anti-corrosion of ball milled cast iron pipes for sewage pipelines to improve the corrosion resistance of acid and alkali components in sewage.
6. Polyurethane coating
is a new type of green special coating developed to meet the needs of environmental protection. It has good wear resistance and corrosion resistance.
The above is the anti-corrosion design details of ball milled cast iron, please pay attention to this issue.