Epoxy pipe outer polyethylene

Internal epoxy outer monolayer structure composed of polyethylene pipe 1. Material: seamless steel pipe, welded steel pipe (straight welds, spiral weld) 2. anti-corrosion coating: Sanitary FBE coatings, heavy-duty fuse bonded epoxy powder. 3. External Coatings: hot melt coating monolayer polyethylene powder in the outer monolayer polyethylene outer layer structure chart ethylene polyethylene (3PE) structure consisting of 1 steel base material: seamless steel tubes, welded steel pipe ( straight weld, spiral weld) 2. anti-corrosion coating: Sanitary FBE coatings, heavy anti-corrosion epoxy powder sintering. 3. External Coatings: hot melt polyethylene coating layer structure, the bottom is fusion bonded epoxy resin powder, hot melt adhesive intermediate layer is the outermost layer of high density polyethylene. Polyethylene outer layer structure configuration of Figure 3 within epoxy outer monolayer PE outer and inner epoxy 3PE compare editor polyethylene and ethylene with excellent corrosion resistance, but different, belong to the thermoplastic material polyethylene, flexible, resistant bump due to persistent poor non-polar molecules and steel adhesion; epoxy belong polar molecule, a hydroxyl group at a certain temperature, easy to react with the steel, strong adhesion, but because it is a thermosetting material, intolerance bump. Therefore, the combination of two materials belong corrosion industry currently the best match. Plastic pipe inside and outside the industry from the earliest of polyethylene, as adhesion problems, the development of internal and external epoxy, but not resistant outer epoxy layer bump, and later developed into the third generation epoxy outer polyethylene, but polyethylene monolayer directly combined with steel adhesion problems still exist, and finally upgrade to the fourth generation of corrosion within the current three-tier structure of epoxy outer polyethylene. 4 production technology introduced advanced technology and editing application (8) 1. IF heating pipe than conventional electric heating, frequency heating has a higher conversion rate, effectively saving energy. Medium frequency heating pipe in the heat dissipation from the inside out, so that the heating temperature is more uniform and effective guarantee of quality cured epoxy coating. 2. The single-use polyethylene inner outside shower spray inside epoxy powder coating process, the outer curtain coating technology called polyethylene powder curtain method, also known as curtain coating process, using frequency heating pipe utilization of waste heat curing at the same time so that the two without alone were cured coating. 3. The three-layer structure of polyethylene using frit winding process inside wall of the thermal spraying epoxy powder preservative manner, the powder after the hot-junction temperature uniformly coated on the inner surface of the tube. The outer coating is applied using high-pressure extrusion winding process, greatly improve the density, tough wear-resistant coating, impact resistance and excellent resistance to bending, can effectively prevent the construction of mechanical damage and use process and plant roots damage soil environment stresses. The inside and outside at the same time outside the three PE anti-corrosion epoxy coating to achieve a synchronous, synchronous curing one-time film-forming core technology, the inner and outer surfaces simultaneously spray coating greatly reduces the time and improve work efficiency, and the coating process steel pipe coating inside and outside at the same time in the package, which greatly limits to reduce heat loss, taking advantage of the latent heat pipe to further improve the thermal efficiency. 5 Pipeline Features Editor 1) pipe wall anti-fouling marine borers will not be moth attached or sewage A shellfish, fungi and other microorganisms sullied. 2) pipe coating smooth, fluid friction less than PCCP and ductile iron pipes. 3) pipe wall corrosion than ordinary PCCP and ductile iron pipes. 4) pipe wall monolayer polyethylene powder thermal spray coatings, are highly resistant to soil corrosion, green. Complete 5) pipe fittings specifications, can adapt to various installation needs. 6) Various forms of connecting pipes can be welded, clamps, flanges and the like. 7) direct welding mending and mending method is simple and reliable. 8) internal and external anti-corrosion coating design life of 50 years or more can be achieved fairly. Internal epoxy coating outer polyethylene coating pipe assembly and pipe corrosion resistance in a deformation resistance. Three-tier structure of the outer coating of polyethylene, a uniform coating thickness, combined with steel close, to improve the efficiency of cathodic protection; inner coating using a thermosetting epoxy coating health and safety, no impact on water quality, both in urban supply, drainage and long-distance transport of water, sewage, water, sea water pipes of various water quality, but also as oil, gas, and oil and gas pipelines mixed media. And within an epoxy outer polyethylene coating pipe integrated, low cost, is in line with the green, environmental protection, low-carbon, energy-efficient quality products.