Chimney installation, spiral staircase, and anti-corrosion water tank

Chimney installation, spiral staircase, and anti-corrosion water tankThe technical standards handled by Hongshun Construction Engineering Co., Ltd. are the same as the first half of Sa Hongshun Construction's requirements, but the defect limit is not more than% per square meter of surface, which may include slight shadows; Minor discoloration caused by defects and rust; Oxidation scale and paint defects. Sa level is equivalent to SSPC-SP level in the United States, which is a high processing level in industry, also known as white cleaning level (or white level). The technical standards for Sa processing: in collaboration with Sa Hongshun Construction The level is the same, but% of shadows, defects, rust and other defects must not exist. With the development of modern industry, the emergence of a number of emerging industrial fields and the construction of many modern engineering projects have put forward higher requirements for the environmental resistance and service life of anti-corrosion coatings. The commonly used anti-corrosion coatings can no longer meet these needs. The concept of "Heavy duty Coating" proposed by people generally refers to a combination of primer and topcoat coatings used in harsh corrosive environments.
Simply put, heavy-duty anti-corrosion coatings are coatings that have a longer service life and can adapt to more demanding environments. Heavy duty anti-corrosion coatings can generally be used in chemical, atmospheric, and marine environments for at least one year. They can be used in acidic, alkaline, salt, and solvent media under certain temperature corrosion conditions for at least one year. The surface should be free of visible grease, dirt, oxide scale, rust, paint coatings, and impurities. Same as St, but should be treated more effectively than St Hongshun Construction. The metal substrate is in the style of metal Hongshun Construction. The surface should be free of visible grease, dirt, loosely attached oxide scales, rust, paint coatings, and other impurities. The surface should be free of visible grease, dirt, oxide scale, rust, paint coatings, and impurities, and residues should adhere firmly. The surface should be free of visible grease, dirt, oxide scale, rust, paint coatings, and impurities, and residual traces should only show slight dots or stripes. The surface should be free of visible grease, dirt, oxide scale, rust, paint coatings, and impurities. Reply 24 hours a day
The watch has a uniform metallic color. There are various types of anti rust pigments used in anti-corrosion coatings, which react with film-forming agents to form dense anti-corrosion coatings; Pigments are alkaline substances that form an alkaline environment when dissolved in water; Water soluble components reach the metal surface and passivate it; Reacting with acidic substances to make it lose its corrosive ability; Water soluble components or reaction products with film-forming agents dissolve in water and become anti-corrosion components. The above-mentioned anti-corrosion effects of anti rust pigments usually coexist, and their anti-corrosion mechanisms include the following three aspects: physical, chemical, and electrochemical. By appropriately adding pigments that react with oil-based film-forming agents, a dense anti-corrosion coating can be obtained, which enhances the physical anti-corrosion effect. For example, lead containing pigments react with oil to form lead soap, which makes the anti-corrosion coating dense and reduces the penetration of harmful substances such as water and oxygen. Phosphate pigments form insoluble basic acid salts after hydrolysis, which have the effect of blocking anti-corrosion coatings. Iron oxides or pigment fillers with flake like mica powder, aluminum powder, glass flakes, etc. can reduce the permeability of anti-corrosion coatings.

Chimney installation, spiral staircase, and anti-corrosion water tank