Editor: With the acceleration of urbanization, the construction of urban infrastructure has also been continuously improved. Underground infrastructure pipelines such as water supply, drainage, gas, and heat are like blood vessels in human bodies.
Under natural conditions, pipelines that have been used for a long time will induce pipeline corrosion due to various factors such as dirt accumulation, water infiltration, sediment abrasion, etc., resulting in pipeline rupture and leakage, damaging the structural strength and transmission efficiency of pipelines, and bringing inconvenience to the lives of urban residents.
Editing pipelines are the "arteries" of a city, and whether these "arteries" are smooth, strong and durable directly affects the "health" of the city's operation.
In the face of complex underground environments, anti-corrosion powder coatings with excellent performance can effectively protect pipelines from corrosion, prolong their service life, and make the urban "arteries" smoother.
According to statistics, the annual economic loss due to corrosion accounts for about 3%-4% of the country's total economy (data**: Honorary Chairman of the Presidium of the Chinese Academy of Engineering*** academician), and paint coating is one of the most basic methods of pipeline anti-corrosion.
The underground environment is dark, damp, complex and changeable, and there are many factors that cause corrosion on the outer wall of the pipeline, including acid, alkali, salt, oxidant, water vapor, etc. The coating of anticorrosive powder coating has excellent chemical resistance, acid and alkali resistance, salt spray resistance, and has been proved by the cathodic peel resistance test (test method: Appendix C of SY T 0315-2013), the coating of anticorrosive powder coating can keep the coating free of decolorization, bulging, softening, skin bursting, cracking, peeling and other conditions for a long time in a complex and changeable environment, and can effectively isolate the pipeline substrate from the corrosive medium in a complex geological environment, providing long-term anti-corrosion protection for the outer wall of the pipeline.
In the process of long-term transportation and use, scaling will inevitably occur on the inner wall of the pipeline, which will promote and aggravate the corrosion reaction in the pipeline, affect the efficiency of pipeline transportation and even pollute the conveying medium.
The excellent chemical stability of anti-corrosion powder coating can resist the erosion of a variety of chemical substances, the product is non-toxic, no solvent pollution, no VOC emission, zero formaldehyde pollution, will not breed bacteria and other harmful chemicals to pollute the pipeline conveying medium, the coating adhesion is strong and the structure is dense, the surface is smooth and smooth, which can effectively inhibit the fouling in the pipe, improve the medium transportation capacity, and provide a comprehensive anti-corrosion "barrier" for the pipeline from the inside to the outside.
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Editor: China has a vast territory, complex topography, and great differences in water and soil resources and climatic conditions in different regions. Affected by the complex underground environment, long-term use of pipelines may have structural problems such as deformation, subsidence, misalignment, disjoint, etc., which accelerate pipeline corrosion and aging, and affect the service life.
Experimental testing proves that the coating pipe sample of anticorrosive powder coating has no cracks and peeling after flattening 4 5 (that is, flattening the pipe to four-fifths of the outer diameter), which meets the CJ T 120 testing standard, can provide strong protection for the coated pipeline, and effectively prevent potential safety hazards such as pipeline rupture and medium pollution caused by deformation and wear.
Edit: Every pipeline of urban infrastructure is connected to people's livelihood, and the more "precautions" in pipeline anti-corrosion work, the less "remedial measures" can be made. Anti-corrosion powder coating puts on an "anti-corrosion coat" for pipelines, unblocks the "arteries" of the city, and connects a better life.