Safety protection in the construction of anti-corrosion steel pipe

1. spraying process of 3pe anti-corrosion steel pipe

at present, most 3pe anti-corrosion steel pipe manufacturers in my country adopt the production process of "epoxy powder spraying, adhesive, and polyethylene lateral extrusion, winding roll pressing", because the method of powder and electrostatic thermal spraying does not need rolling, it solves the problem of a thin coating on the seam of the spiral welded steel pipe, saves equipment such as plastic extruders on the production line, and reduces energy consumption. specific construction: heat the steel pipe after shot blasting and de-rusting to 210°c~220°c at a moderate temperature, at this time, the epoxy powder is still in a molten state, and extrude the adhesive and pe into thin sheets through an extruder, it is sprayed, wound onto the steel pipe, and then flattened by a roller; the epoxy powder is in the form of powder, and the adhesive and pe are in the form of granules, so only electrostatic spraying and plasticizing extrusion winding methods can be used.

2. epoxy resin anti-corrosion coated steel pipe paint surface construction

coal tar enamel anti-corrosion coating is a kind of thermal coating anti-corrosion material, with coal tar, washing oil, and asphalt as the main material, supplemented by participating agents, it has strong adhesion, low water absorption, good insulation, and resistance to bacterial corrosion. it has the advantages of resistance to plant root penetration, resistance to oil and its products dissolution, resistance to soil stress, resistance to cathodic stripping, and long life, so it is suitable for anticorrosion of various underground pipelines. however, when constructing the epoxy resin anti-corrosion steel pipe paint surface, it is necessary to remove the thick paper barrel first, take out the blocky topcoat and break it into small pieces that are heated and melted, put them in a container with a stirrer, and avoid contamination. use an airtight heater to heat slowly and evenly, and avoid direct contact with the topcoat with fire sources.

3. safety protection in the construction of anti-corrosion steel pipes

spraying is highly dispersed paint mist and volatilized solvents. the fine particles in these sprays or spray paints are easily inhaled into the lungs of the human body, thereby endangering the health of the body. symptoms such as vomiting, loss of appetite, and lack of concentration can cause varying degrees of poisoning to the human respiratory system, circulatory system, digestive system, and reproductive system. therefore, safety protection should be paid attention to during the construction of anti-corrosion steel pipes, such as wearing protective glasses and goggles to prevent splashed paint from entering the eyes and injuring the eyes; wearing gas masks or long-tube respirators and other respiratory protective equipment; liquid damage.