Manufacturer of hot-dip plastic steel pipes and coated composite pipes

Description :

　　FBE coatings come in two types: single-layer and double-layer. The so-called FBE coating generally refers to a single-layer fusion bonded epoxy coating. The single-layer FBE coating uses specialized fusion bonded epoxy powder coating as the film-forming material. Use electrostatic spraying technology to apply epoxy powder coating and form a film in one go. This epoxy powder coating is a thermosetting coating made by mixing and breaking solid epoxy resin, curing agent, and various additives. The coating process of double-layer fusion bonded epoxy powder coating is relatively simple, and only minor adjustments can be made on the basis of the original single-layer fusion bonded epoxy powder spraying equipment, that is, dividing the spray gun into three groups, and spraying the bottom layer powder in the first group. The external coating of internal and external epoxy powder anti-corrosion steel pipes (FBE/2FBE) is a new type of anti-corrosion layer. The second group of sprayed outer powders adheres to the compatibility function of single-layer FBE coating with cathodic maintenance, and will not trigger cathodic maintenance barrier. The heat resistance and anti-corrosion of cold and hot circulating water pipelines can be applied to pipeline anti-corrosion in seawater circulation systems and chemical systems. It has strong corrosion resistance, drag reduction, anti-corrosion, compression resistance, antibacterial and other effects, and has good chemical stability and water resistance. It is generally not restricted by the conveying medium, and there are no worries about "running, emitting, leaking, or cracking". It is widely used in fluid transportation in urban construction water supply, fire protection, petroleum, gas, chemical, sewage, mining, agricultural irrigation and other fields, to replace high energy consuming, easy to rust, scale, short service life, and bulky cast pipes.

　　Then it is processed using advanced hot-dip molding technology. Relevant personnel need to further study, improve, and discover methods for directly producing short pipes. The metal exhaust design is unreasonable, resulting in the inability of gas to be discharged smoothly. Coated steel pipes have the dual advantages of both steel pipes and plastic pipes. They possess the mechanical strength and load-bearing capacity of steel pipes, as well as the smooth, wear-resistant, and corrosion-resistant inner walls of non-metallic pipes. They also have low water flow resistance and are environmentally friendly. Relevant personnel need to further study, improve, and discover methods for directly producing short pipes. Coated steel pipe is a new type of anti-corrosion pipeline widely sought after in China, widely used in highways and industry. The plastic coated steel pipe manufacturer has solved the problems of corrosion and scaling that occur during the burial and water transportation of ordinary steel pipes. The phenomenon of pipeline blockage and spray blockage has been eliminated, and the service life of the pipeline has been improved. The service life of the coated steel pipe is over 50 years.

　　The powder coating of the coated steel pipe is added with flame retardants and modified with epoxy resin powder. The coating has superior temperature resistance and does not burn or soften during long-term use. The current status of pre-treatment chemical immersion tank method, physical sandblasting method, and plastic coated steel pipe technology is that anti-corrosion coated steel pipe materials and anti-corrosion systems are basically long-lasting, and it takes a considerable amount of time to know the actual effect, regardless of petroleum asphalt or coal tar enamel paint. The clamp connection of plastic coated composite steel pipes has undergone long-term practical testing throughout the development process by coating the steel pipes with anti-corrosion epoxy coal tar, adhesive cold wrapping tape, fusion bonded epoxy powder or three-layer PE. Each material has its own advantages, but the future development trend should be dominated by fusion bonded epoxy powder, three-layer PE, and polyethylene/polypropylene cold wrapping tape.

　　Epoxy powder anti-corrosion steel pipes with internal and external coating not only have excellent inductive function and strong corrosion resistance, but also can be used at an external temperature of -40 ℃ - Celsius degrees. The applicable water delivery temperature is -30 ℃ - ℃. Epoxy powder anti-corrosion steel pipes have high-end characteristics such as no solvents, no pollution, energy and resource savings, reduced labor intensity, and coating mechanical strength. FBE epoxy powder for anti-corrosion steel pipes is first fully fluidized in a fluidized bed, and then electrostatically sprayed to make the powder particles negatively charged and uniformly adhered to the surface of the preheated steel pipe that is grounded. Regarding a small amount of loose powder, it can be recycled through a recycling system and will not cause dust pollution.

　　There is a coating called heavy-duty anti-corrosion epoxy powder coating in pipeline anti-corrosion, which can also be called fusion bonded epoxy powder. It is generally referred to as FBE in foreign countries. It was developed as early as the 1950s and completed industrial production in the 1960s. After so many years of continuous improvement, this coating has now become relatively old. Due to adhesion issues, the impregnation process of epoxy powder has never been implemented. In recent years, with the successful development of a specialized phosphating solution for epoxy powder impregnation, the adhesion problem of epoxy powder impregnation process has been initially overcome, and a new process of epoxy powder impregnation has begun to emerge. Epoxy powder coating is a new type of anti-corrosion coating that has been developed in the past 30 years. That is to say, to a large extent, it facilitates the transportation of liquids and also has good resistance. Fusion bonding winding process: using the hot melt bonding winding method, hot melt adhesive and polyethylene are wound on the heated steel pipe in the form of an extruder, and react to form a three-layer structure, which is called the fusion bonding epoxy/extruded polyethylene structural protective layer. Packaging: Use hexagonal bundling packaging, and plastic caps should be worn on both ends. Chemical cleaning can certainly achieve a certain level of cleanliness and roughness on the surface, but its anchor pattern is shallow and prone to contamination.

　　The gas inner and outer coated composite steel pipe is a three-layer PE inner and outer coated steel pipe. The * layer is made of heavy-duty anti-corrosion modified epoxy resin, and the outer layer is evenly sprayed with sprayed products, with excellent quality and beautiful appearance. The development time of domestic and foreign coated composite steel pipes is not long, and there is still a significant gap compared to foreign countries in terms of raw materials, technological processes, manufacturing equipment, and other aspects. A plastic protective layer is provided on the inner surface of the inner and outer coated composite steel pipes and composite fittings, and sealant is applied at the joint between the end of the coated composite steel pipe and the sealing gasket. This solves the sealing and anti-corrosion problem of the threaded connection of the coated composite steel pipe, while ensuring smooth and fluid flow inside the pipeline.

　　It is understood. Common thermosetting plastics include epoxy resin, phenolic resin, amino resin, etc. In the stirring state, paint is applied with a curing agent ratio of 10:1 (weight ratio) and a special curing agent is added and stirred evenly. The prepared coating is left for 10-15 minutes before use. Its pipe wall structure is reasonable and advanced, which can fully utilize the material's function. While meeting the requirements of strength, it improves the rigidity and ensures the stability and reliability of the product. The use of epoxy resin composite steel pipes for fire protection and water supply will become increasingly widespread. Overview: There are many types of corrosive media in water supply pipelines. Plastic coated steel pipes for gas transmission are a new type of composite material made by melting, spraying or adsorbing food grade epoxy powder coating or PE raw materials on the inner wall of steel pipes through special processes and curing at high temperatures.

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