The anti-corrosion measures and procedures for spiral steel tubes are as follows:
Compared with other projects in China, the requirements for corrosion of fluid helical tubes are different. The main differences are as follows:
1. Inner anticorrosive coating is non-toxic and anticorrosive.
N epoxy resin coatings and the thickness required to meet specific requirements, we usually use cement mortar.
2. The spark test voltage of corroded coatings has more than doubled.
Faced with this demand, we should also strive to improve a certain degree of quality.
One. We must strictly control the process of sand, which is the first process is a more important process, strictly control the quality of sand, ensure the quality of anti-rust, ensure that two hours of primer coating completed one hour, so as to ensure the quality of basic corrosion.
In the next step, we impregnate the fiberglass cloth with coal tar epoxy paint, and then wrap it with semi-mechanical rolls. In the production process, workers apply rolls to bulldozers to ensure that the coatings are uniformly refined.
C. The corrosion life of helical pipe is long. If the anti-corrosion pipe is stacked in an open space for four months, the inner coating has no yellow pitting and other undesirable phenomena, and the outer coating can achieve the initial transmission of KV in spark experiment.