How ductile cast iron pipe corrosion? - Ductile casting

by:XEX     2021-04-01
Ductile cast iron pipe is the use of more than 18 casting molten iron after adding nodularizer, after centrifugal ductile cast iron machine high speed centrifugal cast pipe, hereinafter referred to as ball tube, pipe and ductile pipes, etc. , the main composition of carbon, silicon, manganese, sulfur, phosphorus and magnesium. But ductile also will rust, how should so ductile corrosion protection? 1. Using bituminous paint coating, the method is suitable for the conveying of gas pipeline. And spray paint on the pipe before preheating can improve bituminous paint adhesion, so as to accelerate drying. 2. Of the special coating with cement mortar lining, this method is suitable for transporting sewage pipeline, can improve the corrosion resistance of lining. 3. With epoxy coal asphalt coating, the method applies to both gas pipeline and the same applies to sewage pipe, the coating has good adhesion and very smooth surface. 4. With epoxy ceramic lining, this method is suitable for the sewage pipeline and gas pipeline, however, its manufacturing process is difficult, high cost, thus has certain limitations on use. Epoxy ceramic lining is an excellent high adhesion and finish of the anti-corrosion coating. 5. With aluminate cement sulfate cement coating or coating, the method is suitable for sewage pipe with the ductile cast iron pipe anticorrosion, can improve the erosion ability of resistance to acid-base components in sewage. 6. With polyurethane coating, is developed in order to meet the environmental requirements of a new type of green special coating, has good wear resistance and corrosion resistance. Above is the whole of the ductile cast iron pipe anti-corrosion anti-corrosion points, want to know more information, please continue to focus on this website, small make up regularly update and give you some relevant information, don't miss oh.
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