Linquan dfpb weight for the bridge protection bimetallic pipes inside and outside the plastic composite pipe is coated polyethylene powder, with a strong resistance to chemical stability and corrosion resistance, good mechanical properties, high compressive strength, the cable may play a Very good protection. Hot dip steel pipe is based on the surface treatment of ordinary steel pipe, according to the use medium and working conditions, using different formulas of polymer materials, which are evenly coated on the metal surface by special equipment , after plasticizing and curing A uniform, dense and smooth plastic coating is formed on the metal surface, becoming a new type of steel-plastic composite pipe.
The pipe material can fully meet the requirements of power threading. The pipe material has excellent corrosion resistance, can withstand corrosion by chemical solvents such as acids, alkalis, salts, etc., and does not crack when it is greased. It has high strength, flame retardant, smoke suppression, and resistance. It has a heat and service life of up to 50 years, and its pressure is high. The wall thickness can be selected according to the usage. The wall thickness can be as thin as possible under the premise of satisfying the pressure. This can greatly reduce costs and achieve energy-saving and environmental protection purposes. The pipes need to be buried, so that the power pipes need to have very good corrosion resistance, and the plastic-coated steel pipes can just meet this requirement. The service life of the plastic-coated pipes is one of all pipelines *, and the cost performance accounts for all pipelines. first.
The advantages of epoxy resin-coated composite steel pipe are strong corrosion resistance, service life of up to 50 years, green and environmentally friendly products, non-toxic, the disadvantage is that it can not be bent, plastic coated steel pipe is a new product of Shengcang pipeline, epoxy resin coated steel pipe is Steel-plastic composite pipe composed of a layer of 0.3-1.0mm thick thermosetting adhesive epoxy resin organic material on the inner wall of the steel pipe. The epoxy resin-coated steel pipe not only has the high strength of the steel pipe, easy connection, and water resistance The advantages of flow impact also overcome the shortcomings of steel pipes that are easily corroded, polluted, scaled, and the strength of plastic pipes is not high, and the fire performance is poor.
2 Using welded steel pipes as the base pipe is a major breakthrough in the plastic coating process, which can not only reduce the price of the base pipe, but also eliminate the investment in the dezincification process, and also ensure that the surface temperature of the base pipe is conducive to the melting of the plastic powder, and at the same time * underlying bond coat is strengthened and the wall, enhance the adhesion. plastic composite tube as a new type material, with other metal pipe, plastic, composite pipe as compared to the strength of both the steel pipe, and It has the characteristics of corrosion resistance, wear resistance and low fluid resistance of plastic pipes. It is a green pipe with safety, sanitation, strong rigidity and good bonding strength. It has been widely used in subway water supply and drainage systems and air conditioning water systems in recent years.
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