how to distinguish the quality of epoxy resin coated steel pipe:the real epoxy resin-coated steel pipe is the anti-corrosion macrostructure of the pipe. it uses electrostatic adsorption to electrostatically adsorb the modified epoxy resin powder on the inner and outer walls o

1. plastic-coated steel pipes are strictly prohibited from being dropped and violently hit during transportation, loading, unloading, and construction on the construction site;2. plastic-coated steel pipes should not be buried in reinforced concrete structural layers;

coated steel pipe requirementsthe coating layer should be smooth and flat, free from scratches, cracks, pinholes, and adhesion of foreign matter and other defects. the outer coating of the steel pipe shall be red. there should be a clear and durable mark on the coated steel p

1. heating of steel pipes: hoist the steel pipes after blasting and purging onto the coating conveying roller table, and heat them with intermediate frequency induction coils. choose intermediate frequency induction heating coils of different specifications according to coating thickness, pipe di

the hazard of incomplete penetration of the plastic-coated steel pipe is that the effective area of the weld is reduced, and the plastic-coated steel pipe reduces the joint strength.secondly, the harm caused by the stress concentration caused by incomplete penetration is

1. product performance of fire-fighting plastic-coated steel pipe the product has good hygienic performance and meets the national standard: "coated steel pipe for automatic sprinkler system". the pipe does not accumulate scale and does not breed microorganisms. secondary polluti

classification of coated steel pipescoating raw materials for coated steel pipes include epoxy resin (epoxy powder) and polyethylene coating materials. the inner wall of the pipeline is coated with epoxy powder thermal fusion, and the outer wall of the pipeline is generally a

both plastic-coated steel pipes and coated steel pipes are coated steel pipes, but their coating methods are different. plastic-coated steel pipes are coated with molten plastic on the surface of steel pipes to form a uniform plastic coating. this coating has good corrosion resis

1. heating of steel parts: hang the steel pipe after blasting and purging to the coating conveying roller table, and heat it with a heating furnace. heating to a certain temperature according to the coating thickness, pipe diameter, and pipe wall. the temperature difference is controlled

plastic-coated steel pipes, also known as plastic-coated pipes, steel-plastic composite pipes, and plastic-coated composite steel pipes, use steel pipes as the substrate and weld a layer of plastic anti-corrosion layer or steel-plastic composite steel pipe with plastic a

when steel pipes are transporting media or placed in natural environments such as the atmosphere and soil, the pipe walls will be subject to varying degrees of corrosion, which directly affects the service life of the pipes. food, drinking water pipelines, petrochemical pipelines, and ma

first, the characteristics of fire-fighting plastic-coated steel pipes:1. hygienic, non-toxic, no fouling, no breeding of microorganisms, ensuring fluid quality.2. the flame retardant ability is strong. under the

1. weld seam defects: weld seam defects are serious, and manual mechanical grinding is used to make up for them. the resulting grinding marks will cause uneven surfaces and affect the appearance. pickling and passivating only the weld seam also creates an uneven surface.

the steel-plastic composite pipe is made of hot-dip galvanized steel pipe as the substrate, and the inner wall (or outer wall if necessary) is coated with plastic by powder fusion spraying technology, with excellent performance. compared with galvanized pipe, it has the advantages of ant

(1) the coated steel pipe should not be buried in the reinforced concrete structure layer;(2) welding is prohibited in the installation of coated steel pipes;(3) th

socket plastic-coated steel pipe application fields:socket-type inner and outer plastic-coated steel pipes are used in the construction industry for water supply and drainage systems, circulating water systems, petroleum and chemical pipeline

exhibition name abu dhabi international petroleum exhibition and conference (adipec 2023) time 2nd – 5th october 2023 location u

30 years anniversary activity in bestar steel.here is the first part in beijing.