Coated steel pipe is a steel-plastic composite pipe that uses steel pipe as the base and welds a layer of plastic anti-corrosion layer on the inner surface or inner and outer surfaces of the steel pipe through spraying, rolling, dipping, suction and other processes. This kind of pipe combines the high strength of steel pipes with the anti-corrosion properties of plastic, and has a wide range of applicability. Types of coated steel pipes include the following:
Plastic-coated steel pipe: Made by applying plastic coating to the surface of the steel pipe, including internal and external coating and internal coating. During the production process, the surface of the steel pipe is first degreased to improve the adhesion of the coating, then sprayed with primer and heat-treated to solidify the primer, and finally sprayed with a colored topcoat to form the final plastic-coated steel pipe.
Polyethylene-coated composite steel pipe: It is produced by coating the inner and outer surfaces of the steel pipe with special polyethylene plastic powder materials through special processing. It is a composite product with antistatic, flame retardant and anti-corrosion properties.
Polyethylene-coated composite steel pipe for underground coal mines: specially designed for underground coal mines. It has the characteristics of high pressure bearing, chemical corrosion resistance, strong mechanical properties, no nodulation and scaling, flame retardant and antistatic, etc. It is suitable for transporting sulfur-containing, Calcium, magnesium and other corrosive media fluids.
Common advantages of these coated steel pipes:
Integrates the common advantages of steel pipes and plastic products, such as high strength and anti-corrosion properties;
Improves the service life and safety of pipelines;
Suitable for many fields, such as pipeline system construction in power, communications, transportation, municipal administration, mining, etc.;
Provides a variety of connection methods to facilitate construction and installation.
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