Non toxic drinking water is used for anti-corrosion and anti-oxidation. At present, the social environment has been seriously damaged and the environmental pollution is serious. Without good corrosion resistance, various corrosive substances, such as acid and alkaline, can be seen everywhere. It will be destroyed by these substances in the process of use. Plastic coated steel pipe can resist all kinds of chemical corrosive substances. Our normal use will be destroyed. The surface pretreatment of inner and outer coating composite steel pipe is very important. The preprocessing process is in progress. The friction resistance of plastic coated steel pipe is also higher than that of common steel pipe. Steel pipes have been greatly reduced.
Especially the inner wall has excellent chemical resistance and water resistance, which meets the safety evaluation standard of drinking water distribution equipment and protective materials. The inner wall of plastic coated steel pipe is smooth, no scaling, no microorganism breeding, low resistance of fluid transportation, which can improve the flow rate and save energy. Coated steel pipe is a kind of composite steel pipe coated with PE or EP inside. The composite steel pipe with zinc plating outside water and plastic coating inside has excellent comprehensive performance and can transport drinking water no higher than 60 ° C. Therefore, when cutting the plastic composite steel pipe, the pre-determined tool afte is used to remove the burr of the steel pipe. R cutting completed. Anticorrosive steel pipes are widely used in Europe and are well received by customers. They are used in many pipeline coating systems. In the summer of 1994, CNPC decided to introduce 3PE coating operation and coating technology. The inner and outer layers of the steel pipe are sprayed with plastic to make the steel pipe more stable. Plastic coated steel pipe has strength and plasticity. Corrosion resistance. Therefore, coated steel pipe is more suitable for various applications. Can meet our expectations. What is plastic coated steel pipe? As the name implies, plastic coated steel pipe is more and more widely used in the application process. It is used for external anticorrosion coating of Shaanxi Beijing natural gas pipeline and kuqin oil pipeline. In December of the same year, experts from China Petroleum infrastructure Bureau, Pipeline Bureau, Sichuan Petroleum Design Institute and northwest pipeline headquarters went to the United States to conduct the first pretreatment of epoxy resin pipes with internal and external coating in block B. The steel pipe is polished and coated. Nanjing anti-corrosion and thermal insulation project analyzes the characteristics of pipe products: coating adhesion significantly enhanced, impact resistance, pressure bearing, not fragile. It is non-toxic, non polluting, non microbial growth, fluid quality, chemical corrosion resistance, soil and marine biological corrosion, and anti negative stripping. The installation process is mature and convenient. Similar to ordinary galvanized pipe. It has good weather resistance and uses desert. Therefore, it is not necessary to use pipe joint for small angle steering, and mechanical flaring is used for large angle steering. Internal sealing treatment. The embedded plastic pipe with inner reinforcement is connected by special snap ring. Italy, Turkey and other countries have inspected 3PE coating line. In May 1995, the petroleum construction company was responsible for the bidding and introduction of China * 3PE coating line of Canadian root engineering company. It was put into normal production at the beginning of 1996. The south to North Water Diversion Project has a strong technical force. The sales volume of our products in the market has reached a new height, and the product quality has been well received by the majority of users. The company adheres to the market management concept of "honest management, quality marketing and win-win". The correct business philosophy has brought good economic benefits to the company and laid a good foundation for network marketing. In the spirit of honesty and pioneering spirit, Suzhou anticorrosion plant jointly established by soxhosa company of Italy and Harbin plastics No.6 factory was officially put into operation in May 1996. At present, the 3PE coating line imported from Holland by Northwest pipeline company and Hong Kong Merchants Group has been put into operation in Baoji Yadong anticorrosion Co., Ltd. at the end of 1996, and 3PE anticorrosion has been paid attention to and applied in China. Therefore, the recycling of polyethylene has a very far-reaching value. With the large-scale promotion of 3PE coating. The melting point of polyethylene is 10-130 ℃, which has excellent low temperature resistance.
