Anti-corrosion properties of common anti-corrosion steel pipes
What are the anticorrosive properties of common anticorrosive steel pipes? Solvent-free epoxy coating with matching curing agent low viscosity, cured coating with good anti-corrosion properties, hardness toughness and denseness. And have a relatively suitable application period and curing period. In addition to the excellent insulation and chemical stability of the solvent-free epoxy coating, the coating has been greatly improved in terms of adhesion, toughness, nuisance strength and peel strength. No solvent volatilization in construction, once the film degree can reach more than 200 entanglement, no pinhole bad. Save power and protect the environment.
Common anti-corrosion steel pipe anti-corrosion performance
Anti-corrosion steel pipe solvent-free epoxy coating occupies a large strength, high solid content, good anti-corrosion function, simple moving process, no situation confusion and other vast benefits. Nowadays, it is commonly used in the heavy anti-corrosion boundary such as anti-corrosion of simple thick pipeline, buried pipeline surface anti-corrosion, patching, elbow, pipe body buried pipeline anti-corrosion overhaul. The attendance of the scale-like filler can not only elevate the dull performance of the coating, can play an outstanding coating shielding function, has a good anti-corrosion effect. Anti-corrosion coating for anti-corrosion steel pipe solvent-free epoxy coating is important to modified epoxy resin action the main film-forming material, the application of active dilution toughening agent to reach solvent-free. Bears the coating good adhesion, outstanding chemical quietness and mechanical properties.
Cold-wrap tape and E heat-shrinkable tape is characterized by: practical all kinds of materials main anticorrosive steel pipe, while other instances apply to the same or close to the material of the main anticorrosive layer of the pipe. Domestic application of more steel pipeline anti-corrosion layer of petroleum asphalt, PE jacket and PE foam jacket, epoxy coal asphalt, coal tar enamel, epoxy powder and three-layer composite layout, etc., the current expansion of the application of *** wide two pipeline anti-corrosion way for the three-layer PE composite structure and single-layer powder epoxy.
Common anti-corrosion steel pipe anti-corrosion performance
Cold-wrap anti-corrosion, simple manipulation, but slightly worse adhesion, low waterproof performance, low strength, subject to environmental infection. Epoxy powder anti-corrosion, selected electrostatic spraying method, and the same material anti-corrosion pipe body fusion good, strong adhesion, but the epoxy powder waterproof poor (high water absorption rate, up to 0.83%), to the cathodic protection plan to bring certain difficulties. Field equipment pleading high, manipulation for the difficulty, texture is not easy to control.