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Time：2022-05-31
The market prospect of inner and outer plastic-coated composite pipes is very broad, and its application scale is accumulating over time. As people know and touch such new products, they will find that this is another innovation movement of new materials. Change our days. The reasons for the decline in sales of resin-coated plastic composite steel pipes First, when new products entered the market, they were at a relatively high profit stage, and what many companies were pursuing. The grooved plastic-coated composite steel pipe for diameter mining uses plastic-coated epoxy composite steel pipe inside and outside, using high temperature-resistant modified epoxy resin powder to coat the inner and outer walls of the steel pipe by electrostatic adsorption, which solves the problem of ordinary steel pipes and galvanized steel pipes. Corrosion and scaling problems during buried water delivery improve the service life of fire-fighting, water-supply and gas-conveying pipelines . It is mainly used as a conveying medium, so it must be well adapted to buried and humid environments, and it must also be able to tolerate extremely high or extremely low temperature changes. Variety: Thermoplastic polyethylene powder, thermosetting epoxy resin powder and other powder coating product characteristics Hygienic, non-toxic, non-fouling, non-breeding microorganisms, ensuring fluid quality, chemical resistance, soil and marine biological corrosion resistance, resistance to cathodic disbondment The installation process is mature, It is convenient and quick to connect with ordinary galvanized pipes and has good weather resistance. It is suitable for harsh environments such as deserts and saline-alkali. The pipe wall is smooth, the conveying efficiency is improved, and the service life is long. Plastic steel pipes belong to internal and external plastic-coated composite pipes, and can be subdivided into internal and external plastic-coated composite pipes for water supply, plastic-coated cable protection pipes, etc. according to different functions. Complex buried conditions such as changes in water level and stray currents of microorganisms penetrating the coating by plant roots cause complex corrosion to the pipeline, such as organic sulfides, salts, formation water, and mineral oxygen. The forms are usually inside the pipeline, outside the pipeline, pipeline cathodic protection, and above-ground pipelines. When the distance between the supplier and the purchaser is relatively close, they can also go directly to the site to check the quality of the steel pipe. Steel pipes generally use the welding technology of double-sided submerged arc welding. The following is a brief discussion of the formation process and characteristics of submerged arc automatic welding. The coating of plastic-dipped steel pipe has strong adhesion. The hot-dip plastic steel pipe has been sandblasted and treated externally to increase the contact area between the surface of the steel pipe and the coating. And tear test, no damage.
