Can centrifugal cast iron pipe be galvanized or coated with asphalt which is good for corrosion prevention?
The centrifugal ductile iron pipe has the advantages of zinc coating and asphalt coating, and it is used in combination with two. By spraying zinc and epoxy coal tar coating of ductile iron pipe wall (or epoxy resin paint, polyurethane, etc.) wall using Portland cement (or epoxy powder, epoxy, polyurethane, ceramics etc.) wall coating can effectively active substances in soil and the formation of an insoluble zinc salt protection tube, the internal coating can inhibit corrosion of pipe body fluid medium.
1, outdoor grounding of anti-corrosion, we must consider the contact resistance, so it is recommended not to use asphalt, and do not use anti-corrosion paint, preferably galvanized anti-corrosion.2, asphalt anti-corrosion paint has good water resistance, moisture resistance, corrosion resistance. Acid and alkali resistance, salt fog resistance, atmospheric exposure and so on. The utility model is suitable for coating internal and external surfaces of various containers and machinery, underground steel structures and underground pipelines for moisture proof, water resistance and corrosion prevention. The utility model is also suitable for repairing water cracks in houses.3, anticorrosive paint is used in the surface of the object, can be used to protect the interior of the object without corrosion of a kind of paint. It is one of the more commonly used than paint anti-corrosion paint in industrial construction, widely used in aviation, shipbuilding, chemical, oil pipelines, steel structures, bridges, oil rigs and other fields, by the vast number of manufacturers favor building.
By spraying zinc and epoxy coal tar coating of ductile iron pipe wall (or epoxy resin paint, polyurethane, etc.) wall using Portland cement (or epoxy powder, epoxy, polyurethane, ceramics etc.) wall coating can effectively active substances in soil and the formation of an insoluble zinc salt protection tube, the internal coating can inhibit corrosion of pipe body fluid medium.
