3pe oil pipe corrosion, 3pe chemical corrosion steel pipe, 3pe anticorrosive steel water conservancy, 3pe anticorrosive steel pipeline Guanghui Cangzhou Pipe Co., Ltd. was founded after two generations of two additional production line with internal and external pipeline corrosion, reaching nine pipe production lines, can be processed : 2pe / 3pe anticorrosive steel 2PP / 3PP anticorrosive steel FBE / 2FBE anticorrosive epoxy powder cement mortar lined steel coal tar epoxy anti-corrosion steel pipe drinking water, non-toxic epoxy anti-corrosion steel pipe corrosion ipn8710 polyurea corrosion epoxy anti-corrosion steel pipe micaceous iron pipe corrosion epoxy anti-corrosion steel pipe chlorinated rubber solvent-free anticorrosive epoxy anti-corrosion steel pipe and other products HT515 glass flake epoxy anti-corrosion steel pipe corrosion, etc., according to customer needs using a variety of materials seamless steel spiral pipe straight seam steel pipe tubes. 3PE anti-corrosion steel (three polyethylene) 3PE anti-corrosion steel pipe buried steel pipeline coating process used epoxy coating especially for coating the bottom, the middle adhesive layer, the outer layer is composed of polyethylene coating steel outer coating. At present, our production process is widely used epoxy powder coating, adhesive and polyethylene pipe from the extruder axis along the winding roll by roll forming wheels. There is a common problem with this approach, that is about 80% due to roll, spiral weld pipe or straight seam steel pipe welds in the coating thickness is generally only pipe coating thickness. In order to increase the thickness of the weld, and only increase the coating thickness of the tubular body, very wasteful material. And our country produced more steel ∮219 mostly spiral weld pipe. "3PE anti-corrosion steel spray" is the three kinds of coatings are used in powder form and static thermal spraying. This method does not exist roll, that solves the spiral weld pipe weld thin coating problems, and production operations in line eliminates the plastic extrusion machines and other equipment, thereby reducing energy consumption and operating precision. 3PE anti-corrosion steel lateral extrusion winding method Currently, China's domestic 3PE anti-corrosion steel pipe manufacturers are mostly used "epoxy powder coating, adhesive and polyethylene lateral extrusion, winding roll roll," the production process. Soon after shot blasting steel with frequency heating to 210 ~ 220 ℃, the lowest level in the steel epoxy powder coating on the outer surface, to be still in the molten state epoxy powder by extruder extruded adhesive and PE sheet, which is wound onto a steel spiral forward, and then roll the wheel flattened by water cooling. This approach is mainly due to the morphology of the paint itself determined by: epoxy powder is a powdery, granular and PE adhesive. So only use electrostatic spraying and plastics extrusion winding approach. Because steel spiral forward in steel manufacturing operations require uniform velocity is relatively stable, but also between each tube and relatively concentric tubes to prevent the two pipe ends have too much beating, you need to use the commonly used internal and external centering the way. That default heart with fittings, using non-removable outer centering roller under the home. While taking into account the existence of a high degree of spiral seam welded steel pipe, roll the wheel will weld the top PE laminated thin, round the outside of the rolling have adopted the rubber to reduce the roll hardness round appearance. But its coating thickness on the weld is still difficult to guarantee, at the top of the general weld coating thickness of only about 80% of the pipe body. Using the width of the lateral wound also requires high running accuracy, according to the width of the polyethylene membrane, set a reasonable feed pipe axial and rotational speed ratio, polyethylene membrane wrapped onto the tube ride exactly when is the pitch (the steel pipe is rotated one week axial distance traveled) is an integer multiple of, to achieve a uniform thickness. In other aspects, the adhesive power of the extruder and polyethylene are 300 ~ 550kW, line production operations a lot of electricity. The length of the extruder at about 5 ~ 7m, a larger area, and the high cost of equipment, maintenance volume. In the production process to recover the formed coating can not be reused, waste more serious. 3PE anti-corrosion steel spray paint in recent years with the development of industry, now adhesives and PE have been able powdered make 3PE anti-corrosion steel electrostatic spraying can be used in all methods of construction jobs. In the operating line 3PE anti-corrosion steel pipe coating method, in accordance with the requirements of the coating thickness, FBE Coating required six guns, spray adhesive layer required 12 guns, PE layer required 24-32 gun. The recovered powder in the production process, because it is a mixture of three kinds of coatings, can be reused, then three gun recovered mixture simultaneously with the other three kinds of paint sprayed onto the intermediate adhesive layer and the PE layer, thus greatly improving the raw materials utilization and reduce costs. Although a larger number 3PE anti-corrosion steel spray gun applied, but if the gun does not require reasonable layout a lot of space. Due to the continuous loss of heat in the production process, PE layer sprayed onto the heated steel, plastics surface has been completely reach, so it is necessary to increase an infrared (or flame) heating device to supplement the heat, so that the surface is fully plastic PE of the coating was smooth and has a certain gloss. At the same time the use of three kinds of paint spraying methods, eliminating the need for the next set extruders and roll the wheel, so that the outer surface of the spiral welded steel pipe coating to maintain uniform solve the spiral weld pipe coating thickness thinning problem . And the application of the method of centering and face misalignment between the tube and the tube and the relative synchronization requirements are not high. While also reducing the equipment running accuracy requirements. Conclusion 3PE anti-corrosion steel spray compared with the traditional method of lateral extrusion wound, not only to solve the traditional method of welded steel pipe weld coating thinning problems spiral, improve product quality, and reduce the operating line equipment, reduce the running accuracy. In particular, eliminating the need for two extruders, which saves space and reduces the power consumption of the production line. With the country in recent years to improve the non-residential electricity price advantage 3PE anti-corrosion spray on steel consumption will be more apparent. In short, 3PE anti-corrosion steel spray compared with the traditional method of lateral extrusion wound, not only easier to control the quality of its production costs are greatly reduced. In 3PE anti-corrosion pipe coating is widely used in the oil and gas pipeline construction in our country today, 3PE anti-corrosion pipe coating method is bound to use its advantages of scale in the market. Guanghui Cangzhou Pipe Co., Ltd., with enthusiasm, very hard to make high-quality products, we warmly welcome new and old customers and friends to inquire, to guide, to discuss cooperation and win-win with the king.