Wholesale and direct sales of composite coated steel pipes, hot-dip coated steel pipes with reliable quality

Description :

　　The inner and outer plastic coated pipeline is a steel plastic composite pipe material composed of a layer of 0.5-1.0mm thick polyethylene (PE) resin, ethylene acrylic acid copolymer (EAA), epoxy (EP) powder, non-toxic polypropylene (PP) or non-toxic polyvinyl chloride (PVC) organic matter melted on the inner wall of the steel pipe. It not only has the advantages of high strength, easy connection, and water flow resistance of steel pipes, but also overcomes the disadvantages of steel pipes being prone to corrosion, pollution, scaling, low strength of plastic pipes, and poor fire performance when exposed to water. Its design life can reach 50 years. The main disadvantage is that bending is not allowed during installation, and during hot processing and electric welding cutting operations, the cutting surface should be coated with non-toxic room temperature curing adhesive provided by the manufacturer for spiral welded pipes, straight seam welded pipes, and seamless steel pipes. Firstly, the ordinary steel pipe is subjected to a series of pre-treatment processes including chamfering and deburring, end face leveling, sandblasting and rust removal, followed by preheating to a temperature of 220 ℃. Then, the preheated steel pipe is electrostatically sprayed or immersed in polyethylene powder. If the product is sprayed with epoxy resin, it needs to be sent to a curing oven for curing. The curing temperature requirement is around 280 ℃. After four hours, the product can be removed and repaired, and the product processing is completed. There are also many details that need to be paid attention to in the processing technology, such as uniform coating of the plastic layer, spraying on every part, controlling the immersion time, etc. In order to make the product good, it is necessary to choose epoxy or polyethylene powder, and then advanced process technology and equipment support are needed. Epoxy resin coated composite steel pipe is a steel plastic composite product that uses steel pipe as the base pipe and plastic powder as the coating material. A layer of plastic is melted and coated on the inner surface, and a layer of plastic or other material anti-corrosion coating is melted and coated on the outer surface.

　　The composite steel pipe with inner and outer coating for water supply is a product that uses PE (modified polyethylene) for hot-dip molding or EP (epoxy resin) for inner and outer coating, and has excellent corrosion resistance. At the same time, the coating itself also has good electrical insulation and will not produce electrical corrosion. Low water absorption rate, high mechanical strength, low friction coefficient, capable of achieving long-term use. It can also effectively prevent damage to plant roots and soil environmental stress. The internal and external coated composite steel pipes for fire water supply are easy to connect and maintain. The composite steel pipe with inner and outer coating for fire water supply has many characteristics. Firstly, it cannot be destroyed or corroded by other harmful substances, which greatly enhances its service life. The friction force itself is not particularly high, so the resistance caused will be very small. Therefore, this type of coated steel pipe is used in various parts of our lives. Coated composite steel pipe, as its name suggests, is a new type of composite pipe material made by melting and spraying coating on the inner wall, followed by a special manufacturing process, high-temperature curing, and solidification. Through these series of manufacturing processes, it can become a new type of composite pipe material. It has excellent comprehensive performance, strong corrosion resistance and mechanical properties, good chemical stability and water resistance, and has functions such as drag reduction, anti-corrosion, compression resistance, and antibacterial. It is generally not restricted by the conveying medium, and the coating layer has a strong bonding force with steel.

　　The scope of fire protection coated steel pipes is relatively wide. Any steel pipe that undergoes chemical treatment on the inner or outer layer belongs to the scope of coated steel pipes. Common chemical substances used for coating the outer layer of steel pipes are polyethylene, epoxy resin, and other coatings. After coating processing, the steel pipe has a longer service life than the previous pipe body, generally up to 50 years. However, the coated steel pipe changes the characteristics of the original pipe body, so attention must be paid when laying it. The characteristics of coated steel pipes: They have anti-corrosion and anti rust properties. The epoxy resin coated anti-corrosion spiral steel pipe manufacturing factory has a very smooth inner wall and minimal friction resistance, which can be used for pipelines for edible oil or drinking water. Moreover, bright colored paint can be applied to the outer wall of the pipeline, making it more aesthetically pleasing. Moreover, compared to traditional pipelines that are prone to brittleness or rust, the service life of coated steel pipes can reach more than 20 years, which is quite low in terms of total cost. Compared to copper and galvanized pipes, stainless steel pipes are more cost-effective. So nowadays, it's not just about using the water supply pipes in households. And it is also a municipal pipeline in the city, such as natural gas and oil pipelines. Coated steel pipelines not only have the same hardness as traditional steel pipes, but are also more lightweight, with less resistance inside the pipe and faster flow velocity.

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• Composite coated steel pipe