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 of the steel pipe. usually, companies that can say the same name are

when using fire-fighting plastic-coated steel pipes, you will understand the implemented standards. what are the special requirements and circumstances of these standards? the detailed details are introduced below.anti-corrosion, food-grade hygienic thermoplastic powder c

the paint coating of plastic-coated steel pipes has always been the most important link, but what are the defects in the anti-corrosion of epoxy coal tar pitch paint coatings?1) during on-site construction, the curing of epoxy resin is affected by temperature, the curing

coating raw materials for plastic-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 anti-corrosion with epoxy powder

hazards of incomplete penetration of plastic-coated steel pipes: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

1. coating adhesion of coated steel pipe: the adhesion of the polyethylene coating layer is ≥30n/cm, and the adhesion of the epoxy resin coating is 1~3.2. bending performance: no cracks will occur after bending the steel-plastic pipe with a nominal diameter not greater th

1. appearance inspection: check the appearance quality of plastic-coated steel pipes.2. thickness measurement: take two cross-sections of different lengths from both ends of the plastic-coated steel pipe, and use an electromagnetic thickness gauge to measure

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 anti-corro

1. epoxy resin coated steel pipe firstly pre-treats the base pipe.2. sandblasting the steel pipe, the surface of the steel pipe is blasted and de-rusted according to bg/t8923 to sa2 1/2 level, to ensure roughness and improve the adhesion.3. put the sandblasted steel

(1) internal and external spraying process: using electrostatic adsorption theory, through pre-treatment of steel pipes, spray polyethylene or epoxy resin powder with a spray gun. also known as the second-generation anti-corrosion plastic-coated steel pipe, epoxy composite steel

1. weld seam defects of plastic-coated steel pipes: 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 creat

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 combustion test, the coating has no spontaneous combu

in the installation of large-diameter plastic-coated steel pipes, there are many installation methods and good use effects. large-diameter plastic-coated steel pipes are used in fire-fighting pipelines and power pipeline installations. both play an important role in underground m

(1) the dust, oil, scale, etc. on the surface of the epoxy resin-coated steel pipe must be cleaned before painting. reach sa 2.5 level to ensure the quality of the painting. it is strictly forbidden to bring in water during construction.(2) the construction rati

(1) plastic-coated steel pipes should not be buried in reinforced concrete structural layers;(2) welding is prohibited in the installation of plastic-coated steel pipes;(3) the installation of plastic-coated steel pipes should be gradually connected from large diame

mine plastic coated steel pipe has the following characteristics:(1) flame retardant and antistatic: the product is made of polyethylene coating for mining, and its antistatic and flame retardant components are evenly distributed on the surface and inner layer o

plastic-coated steel pipe has the dual advantages of steel pipe and plastic pipe. it not only has the mechanical strength and bearing pressure of steel pipe, but also has the characteristics of the smooth inner wall of the non-metallic pipe, strong wear resistance, strong corrosi

epoxy coated steel pipe first pre-treats the base pipe--polishing the steel pipe (advantages: automatic spraying makes the coating on the inner and outer walls of the base material uniform, and the leveling property is good. it meets the cj/t120-2008 standard and gb/t5135 .20 ---