tpep anti-corrosion steel pipe manufacturer

In recent years, the steel pipe industry has paid more and more attention to the maintenance of spiral steel pipes, straight seam steel pipes, and seamless steel pipes. Therefore, more and more petrochemical pipelines, water pipelines, etc. will use anti-corrosion steel pipes, especially anti-corrosion steel pipes for natural gas. The price and cost of anti-corrosion are low, the effect is good, and the corrosion-resistant time is as long as years. Anti-corrosion steel pipes for natural gas are made of some anti-corrosion materials through multiple treatments. Different types of anti-corrosion materials have different anti-corrosion steel pipe qualities and costs. Then The selection and application of anti-corrosion materials and anti-corrosion costs should be comprehensively considered based on the different pressures and uses of the protected steel pipes, as well as the different environments and different substances transported times to ensure normal and safe use. Therefore, pipeline designers attach great importance to the selection and application of anti-corrosion steel pipe materials. With the advancement of the times and the development of science and technology, the application of anti-corrosion materials will also develop differently. Trend, convenient construction, longer life, economical cost, environmental protection, etc. Anti-corrosion steel pipes for natural gas are implemented/standardized. The standard mainly specifies polyethylene and high-density polyethylene. The Vicat softening point is set to not less than ℃. The thickness of the outer anti-corrosion layer is based on the German standard D, which is mainly low and medium density polyethylene. Sure. The impact strength of the anti-corrosion layer is greatly improved. / The mechanical strength and weather resistance of the anti-corrosion layer will be clearly specified, and the frequency of spot testing of the patching and peeling strength will be increased. Inventories of anti-corrosion steel pipes at domestic ports continue to rise. In addition to increased supply, rising import demand is also the primary driving factor. The continuous increase in the inventory of anti-corrosion steel pipes is mainly due to the substantial increase in import volume, and the fact that imported anti-corrosion steel pipes have a pricing advantage over domestic anti-corrosion steel pipes. The share of use of imported anti-corrosion steel pipes by steel mills is constantly increasing. Analysts informed the Futures Daily reporter.
Performance characteristics of small-diameter anti-corrosion spiral steel pipes: The anti-corrosion technology (internal and external) of small-diameter water pipelines is a combination of thermosetting epoxy resin powder coating and polyethylene properties and processing technology, and the three-layer structure polyethylene coating is sintered The ingenious combination of epoxy powder coating technology provides the best solution for the corrosion protection of buried steel pipes. The inner wall is sintered with epoxy resin powder (B) for anti-corrosion, which solves the problem of internal anti-corrosion of the pipeline. The pipe has small roughness, smooth inner wall, Hydraulic performance is good. Through the analysis of design examples, it is concluded that compared with pipes of the same diameter, the loss of pipelines with inner wall sintered epoxy coating can be reduced by more than %. When transporting the same flow rate, the pipe diameter can be reduced by one level, thereby reducing Reduce costs and reduce energy consumption. It has become a main product of large-diameter water transmission pipelines widely used in the market. It has been applied in the domestic South-to-North Water Diversion supporting project, the ecological water supply of Yanqi Lake in Huairou, Beijing, and the national key projects of Chongli Ski Resort, the Winter Olympics bidding venue.
The one-step single-layer epoxy powder for anti-corrosion steel pipes fundamentally ensures the anti-corrosion effect of anti-corrosion steel pipes, and then proceeds to the next process: the adhesive three-layer structure polyethylene anti-corrosion layer combines the fused epoxy powder coating The excellent properties of two anti-corrosion layers, namely polyethylene and extruded polyethylene, combine the interfacial properties and chemical resistance properties of sintered epoxy powder coating with the mechanical protection properties of extruded polyethylene anti-corrosion layers, thereby significantly improving respective performance. Therefore, it is very superior as an outer protective layer for buried pipelines. According to relevant information, three layers can extend the service life of buried pipelines to 20 years. Currently, it is considered to be the most advanced pipeline external anti-corrosion technology in the world. In our country, three-layer systems have taken the lead in being applied in oil and gas systems. Our country's built Shaanxi-Beijing natural gas pipeline and Kushan-Shanxi oil pipeline, as well as the nearly one-kilometer west-to-east gas pipeline of the recent national key project, all use three layers of external anti-corrosion coating. In Tianjin, three kilometers of high-pressure pipelines from Shaanxi to Tianjin, kilometers of high-pressure natural gas pipelines on the outer ring line, and kilometers of underground gas storage pipelines on the Shaanxi-Beijing line also use three layers.
Anti-corrosion steel pipe coating, also known as (three-layer polyethylene anti-corrosion coating), is a new product that cleverly combines the European anti-corrosion layer and the epoxy powder anti-corrosion steel pipe coating (B) widely used in North America. Anti-corrosion steel pipe coating. It has been recognized and used around the world for more than ten years. The coating of anti-corrosion steel pipes is an epoxy powder anti-corrosion coating that is in contact with the surface of the steel pipe, and the middle layer is a copolymer adhesive with branched structural functional groups. The surface layer is high-density polyethylene anti-corrosion coating. The three anti-corrosion coatings combine the high impermeability and high mechanical properties of epoxy resin and polyethylene materials. So far, it is globally recognized as a pipeline anti-corrosion coating with good effectiveness and good performance, and has been used in many projects. Anti-corrosion steel pipes were first widely used in Europe and were well received by users. They are the most commonly used pipeline coating system. China National Petroleum Corporation decided to introduce coating operations and coating technology in the summer of 2016 for the external anti-corrosion coating of the Shaanxi-Beijing gas pipeline and Kuzhou-Shanxi oil pipeline that were about to be constructed. In the same month, a delegation of experts from China Petroleum Infrastructure Bureau, Pipeline Bureau, Sichuan Petroleum Design Institute, and Northwest Pipeline Command went to the United States, Italy, Turkey and other countries to inspect coating operation lines. In March 2007, Liaohe Oil Construction Company was responsible for the bidding and introduced my country's first coating operation line from Canada's Genlao Company. It was put into normal production at the beginning of the year. The Shuozhou anti-corrosion plant jointly built by the Italian Soxam Company and Harbin Plastic Factory No. 6 was actually renovated and put into normal production in May. The coating operation line introduced from the Netherlands through a joint venture between the Northwest Pipeline Command and a Hong Kong businessman was completed and put into production at Baoji Yadong Anticorrosion Company in 2005. Since then, anticorrosion has received attention and application in China. Starting from the construction of the Seninglan Pipeline, through bidding, and all anti-corrosion materials are domestically produced
From the perspective of import status, the data shows that my country’s anti-corrosion steel pipe imports were . Add to%.
However, according to Xia Xuezhao, a black researcher at Southwest Futures, the inventory of anti-corrosion steel pipes at domestic ports has recently returned to more than 100 million tons, which is closely related to the production restriction of steel mills in Tangshan region in March. From March to March, in order to ensure the smooth holding of the local leaders' meeting of my country's Central and Eastern European countries and the Hebei Economic and Trade Fair, the blast furnaces of Tangshan regional steel plants were simmered.
Changes in the pace of mine shipments may cause a short-term rebound in anti-corrosion steel pipe quotations. If steel prices are strong, the price of anti-corrosion steel pipes will also strengthen. However, in the medium to long term, I am still bearish on anti-corrosion steel pipes.
Anti-corrosion steel pipe manufacturers analyze the recent price trends of anti-corrosion steel pipes for you: Yesterday, the increase in the domestic steel price index significantly converged, with the comprehensive index rising by .3 points, and the flat steel index not rising by .3 points, which was a drag on the overall rise. In the spot market, the average price increase of rebar Hmm in major cities across the country narrowed to RMB/ton, with individual regions in East China taking the lead in falling. The average price increase of hot-rolled M narrowed to RMB/ton, with individual regions in North China taking the lead in falling. On the raw material side, the foreign mining index showed alternate rises, and the Platts index took the lead in breaking through the US dollar. Under this influence, yesterday's port ore quotations were raised again by RMB/wet ton to RMB/wet ton, and domestic ore and coal spot quotations continued to remain stable< br/>