Manufacturer produces CJ/T 120-2016 large-diameter inner and outer coated composite steel pipes for fire protection

Description :

　　Coated composite steel pipe has strong resistance to interference, which belongs to a type of cable conduit. It has a shielding effect on signals from other places if interference occurs. This type of steel pipe has excellent pressure resistance and good insulation performance. It mainly provides protection for wires, so leakage is impossible to occur. So far, plastic coated steel pipe manufacturers are changing these advantages. They have relatively smooth pipe walls, no burrs, and are suitable for passing through cables or wires during construction. The technology of coated steel pipes has become very mature in industrialized countries abroad. Coated steel pipes have been widely used in many fields such as petroleum, chemical, construction, shipbuilding, communication, power, and underground gas pipelines. For example, 80% to 90% of water pipelines in countries such as the United States and Japan use coated steel pipes.

　　The inner and outer coated composite steel pipes are powder coated pipes made of modified epoxy resin for water supply. It has excellent comprehensive performance, especially for the coating of epoxy composite steel pipes inside and outside the water supply, which has strong corrosion resistance and can be used at external temperatures ranging from -40 ℃ to 90 ℃. Suitable for water transmission temperatures ranging from -30 ℃ to 80 ℃, it also has good chemical stability and water resistance, meeting the safety evaluation standards for drinking water transmission and distribution equipment and protective materials.

　　The quality and design process of hot-dip plastic steel cable conduit products. The hot-dip plastic steel cable protection pipeline products use steel, which has high mechanical strength, strong pressure bearing capacity, and environmental protection. The water pipeline overcomes the sealing and anti-corrosion problems of threaded connections of coated composite steel pipes. At the same time, it can ensure smooth and fluid flow inside the pipeline, save power, and can be applied to the transmission pipeline of corrosive media fluids. And environmentally friendly water pipelines can overcome the problem of being coated with sealant. Excellent electrical insulation performance, with high and smooth hardness on both the inner and outer surfaces. The plastic raw materials used in the product are added with flame retardants. Its flame retardant performance indicators meet the standards of plastic coated steel pipe manufacturers, and the plastic is melted at high temperatures. Another type is the hot-dip molding process after upgrading the hot melt process.. The hot melt process uses polyethylene and epoxy resin as coating materials, and welded pipes as base pipes. Due to the rust stains on the surface of the steel pipes during transportation and outdoor storage, they need to be used before use. Cleaning with hydrochloric acid and then using high-temperature melting process to melt the plastic. Another method is hot melt process. And its steel plastic composite structure has better flame retardant performance than pure plastic pipes, making it suitable for underground flammable and explosive places. The surface of the steel pipe has undergone special treatment, with process curing and coating adhesion of ≥ 30N/10mm. Dense inner and outer resin layers: With a coating thickness of 0.5 mm or more, and in terms of functional applications, the focus is on unprofitable products. Therefore, this is also a major reason for the rapid development of coated steel pipes. Secondly, from the customer's perspective, coated steel pipes are not suitable for commercial use. In terms of product characteristics and functional applications, the focus is on unprofitable outcomes. Has excellent corrosion resistance.

AfterSalesService :

• Coated composite steel pipe