Coating Thickness Gauge Test Anti-corrosive Coating
The steel structure industry and natural gas industry are basic industries in China and the use of related materials has been strictly controlled. Natural gas pipelines are generally buried in the soil, so the basic corrosion resistance must be guaranteed, which is the most widely used building material. The pipeline is exposed to the sun and rain and its anticorrosive coating must have higher protection. ability. We can use the anti-corrosion coating thickness gauge to measure the thickness of the anti-corrosion coating when comparing common anti-corrosion materials.
1. Anticorrosive coating for natural gas pipelines
Natural gas pipelines need to have excellent anti-corrosion functions and be able to resist the erosion of acids, alkalis and salt solvents. According to the relevant standards of the National Bureau of Surveying, the thickness of the anticorrosive coating for natural gas pipelines should be 0.038 to 0.2 mm. In addition, the anticorrosive coating of the pipeline should be smooth and uniform. The testing of anticorrosive coating thickness for natural gas pipelines should be based on the minimum standards. And the coating thickness testing should also be maintained within the range.
Linshang anti-corrosion dry film thickness gauge LS223 is equipped with F3N3 probe. Its measurement range is 0-3000μm and the accuracy is ≤ ± (3% of reading + 2μm). In the actual measurement of natural gas pipelines, when measuring natural gas pipelines in different locations, it may be necessary to replace the probe, which can ensure that the measurement accuracy of the anticorrosive coating.
2. Anti-corrosion coating for steel structure
China is a big country of steel production and the development of the steel structure industry has shown a vigorous state. Manufacturers often spray some zinc and aluminum on steel components, making full use of the anodic protection principle to artificially form a corrosion-resistant coating on the surface of steel structures. The national standard for the steel structure surface anticorrosive coating thickness generally requires a dry film thickness (one) of 25μm; a wet film thickness of 56μm. The state has the following regulations for different types of steel materials of different thickness:
Ultra-thin steel structure fireproof coating, the thickness of the surface anticorrosive coating is less than or equal to 3mm.
Thin steel structure fireproof coating, the thickness of the surface anticorrosive coating is greater than 3mm and less than or equal to 7mm.
Thick steel structure fireproof coating, the thickness of the surface anticorrosive coating is greater than 7mm and less than or equal to 454mm
During product acceptance, professional anti-corrosion coating thickness gaugesare also used for inspection. The electronic thickness gauge LS223 of Linshang Technology with F5N3 probe has a large measuring range of 0-5000μm, which is suitable for testing the thickness of the anti-corrosion coating on the surface of this demanding steel structure.The resolution is 0.1μm: (0μm-99.9μm), 1μm: (100μm-999μm), 0.01mm: (1.00mm-5.00mm), it can ensure to pass the inspection of National measurement institute.
Using a high-quality anticorrosive dry film thickness gauge is a very reliable way to compare the basic properties of anticorrosive materials, which helps to objectively reflect the merits of anticorrosive materials and the compliance of the relevant anticorrosive coating thickness.
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