Coating standard: anticorrosive coating protection system for steel structures with paints and varnishes

Core tips: iso12944 anticorrosive coating protection system for steel structures with paints and varnishes is a comprehensive standard for anticorrosive coating of steel structures under general environmental conditions It is a standard compiled by International Standardization Organization for owners, designers, consultants, coating contractors, coating production and construction enterprises engaged in anticorrosive work At present, iso12944 is widely used as the guiding standard in the design of anticorrosive coating system for steel structures in China, and the general reference contents are the classification of corrosion environment and the design of coating thickness This paper briefly introduces 8 parts of iso12944 Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint House News: iso12944 paint and varnish steel structure anti-corrosion coating protection system is a comprehensive standard for steel structure coating anti-corrosion under general environmental conditions It is a standard compiled by International Standardization Organization for owners, designers, consultants, coating contractors, coating production and construction enterprises engaged in anti-corrosion work At present, iso12944 is widely used as the guiding standard in the design of anticorrosive coating system for steel structures in China, and the general reference contents are the classification of corrosion environment and the design of coating thickness In this paper, 8 parts of iso12944 are briefly introduced, so as to have a comprehensive understanding of this standard and to benefit the anticorrosive coating technology of steel structure in China 1 Basic introduction of iso12944-1 this section gives a general introduction to iso12944 standard - anticorrosion of steel structure through coating protection system The standard only includes the anti-corrosion function of the coating system, and does not include other protection functions, such as anti microbial, anti chemical, anti mechanical, fire protection, etc The scope of application includes: applicable to carbon steel and low alloy steel structures with thickness not less than 3 mm, not applicable to reinforced concrete structures; applicable to surfaces composed of carbon steel or low alloy steel and the surfaces they are treated on: hot spraying zinc, aluminum or their alloys, hot-dip zinc, galvanizing, precoating primer, etc.; involving 6 types of corrosion in atmospheric environment, Three types of corrosion in water and soil; suitable for dry or solidified coating system under natural conditions, not suitable for powder coating, baking coating, heating curing coating, oil tank lining, coating with thickness greater than 2 mm, products for electrochemical surface treatment, etc.; suitable for both initial coating system and maintenance system 2 iso12944-2 environmental classification this part involves the main environmental classification of steel structure exposure and the corrosion characteristics of these environments: according to the quality loss (or thickness loss) of the standard sample, the type of atmospheric corrosion is described in detail (see Table 1), and the typical natural atmospheric environment of steel structure exposure is described, Suggestions are given for the evaluation of the corrosivity of these environments; different types of environments of structures in water and soil are described, which are divided into three categories: fresh water IM1, salt water or sea water im2, buried IM3; some special corrosion factors that may cause serious increase of corrosion rate or have higher requirements for the performance of coating protection system are given This section does not cover the classification of environments that consist of special atmospheres, such as those within and around chemical and smelter plants Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,