Details of three oil and two cloth anti-corrosion spiral steel pipes

three-oil and two-cloth anti-corrosion steel pipes use three-layer coating oil technology and two-layer weaving technology to give the surface extremely strong anti-corrosion properties and can be used for a long time in harsh environments without being affected by external corrosion. this three-layer coating technology makes the steel pipe extremely corrosion-resistant and can be used for a long time in corrosive media such as acids, alkalis, and salts without corrosion.

compared with traditional steel pipes, anti-corrosion steel pipes with three oils and two cloths have many advantages in use. first of all, it has excellent corrosion resistance and can operate stably even in high temperature and high humidity working environments. secondly, the interior of this steel pipe has a very smooth and flat surface due to the use of anti-corrosion technology, which will not cause fouling or fouling, reducing the resistance of the pipeline and improve the transportation efficiency of the transportation medium. in addition, three-oil and two-cloth anti-corrosion steel pipes also have lower maintenance costs and longer service life, bringing broader and far-reaching development prospects to the environmental protection industry.

the three-oil-two-cloth anti-corrosion process is generally used for the anti-corrosion treatment of metal pipelines. during the process, the oil used is a kind of petroleum (modified asphalt), usually called anti-corrosion coating; the cloth used is fiberglass cloth. a total of 3 layers of oil were applied and 2 layers of cloth were wrapped.

advantages of epoxy coal pitch anti-corrosion steel pipe:
1. the anti-corrosion layer has stable performance and long service life.
2. the construction is more convenient, the coating solidifies naturally, no heating equipment is required, and it can be constructed mechanized, semi-mechanized, or manually.
3. the coating cost is relatively low. under the same rust removal conditions, the comprehensive cost (including transportation, processing, loss, etc.) of epoxy coal tar is lower than that of all anti-corrosion materials and is comparable to petroleum asphalt. after more than 20 years of experience accumulation, the petroleum department has officially formulated a set of technical standards for epoxy coal pitch anti-corrosion from design to construction, indicating that its technology is mature and reliable.

disadvantages of epoxy coal pitch anti-corrosion steel pipe: the coating curing reaction is affected by temperature. the curing is slow at low temperatures (below 10°c), and construction is restricted in winter in the north. at present, the coating manufacturers are all over the country, and low-priced and inferior products have impacted the market, damaging the image of the epoxy coal pitch and affecting the quality of the project.

one cloth and two oils, three cloths and two oils, five steps and three oils, seven cloths and four oils. epoxy coal pitch anti-corrosion spiral steel pipe is composed of epoxy coal pitch primer and topcoat, with epoxy resin and coal pitch as the main film-forming materials. , adding various anti-rust pigments, insulating fillers, toughening agents, leveling agents, thinners, anti-sedimentation agents, etc. to make epoxy coal pitch anti-corrosion steel pipes. the appearance is as shown above: the primer component a is iron red, and the primer component b is iron red. divided into colors, the topcoat is colored. it has excellent resistance to chemical media corrosion and good physical and mechanical properties, good adhesion, tough coating, excellent electrical insulation, and anti-permeability.