Because the individual quality of the spiral steel pipe
is relatively large, it must be stacked outdoors, but it is difficult to avoid the sun and rain, so the problem has been puzzling the storage time and conditions of the spiral pipe rust tube. Therefore, we need to have a comprehensive understanding of the anticorrosive situation of spiral steel pipes.
The main use of steel brush and other tools is to wear the surface of steel. When the spiral steel pipe is cleaned and preheated, the loose or inclined oxide, rust, slag and so on can be removed. The hand tools reach the grade of anti rust Sa2, the electric tool rust proof can reach Sa3 level. If the steel surface is attached to the solid oxide skin, the anti rust effect of the tool is not ideal, and the requirement of the building anticorrosion is lower than the depth of the anchorage pattern. pickling
In order to remove oil, grease, dust, lubricating oil and similar organic matter, the emulsion is used to clean the surface of the welded pipe on the low pressure fluid, but it can not remove the corrosion, oxidation and welding of the steel surface, which can only be used as an auxiliary means for corrosion production.
In general, two methods of chemical and electrolysis are used to do acid cleaning. Only chemical acid washing is used in pipeline corrosion. Oxide, rust layer and old coating can be removed, and sometimes it can be used as post treatment after blasting. Chemical cleaning can make the surface reach a certain degree of cleanliness and roughness, but its anchorage profile is shallow, and it also makes the spiral steel pipe pile up environmental pollution.
The use of means of cleaning rust pipe reasonable, to ensure long service to production, create more production efficiency