Wall thickness requirements of epoxy coal asphalt cold-wound anticorrosive spiral pipe Ningqiang plastic coating and lining plastic are both steel pipe composite pipes. The process principle is to combine plastic and steel pipes to form a composite pipe body. It has the common advantages of steel pipes and plastic pipes. The compression resistance, bending resistance and earthquake resistance are the same. The base pipes used in these two pipes are seamless steel pipes, straight seam steel pipes or spiral steel pipes, so they have all the advantages of steel pipes, and their wear resistance is superior to steel pipes. The classification of epoxy resins has not yet been unified. Generally, they are classified according to strength, heat resistance and characteristics. There are 16 main types of epoxy resins, including general purpose adhesives, structural adhesives, temperature resistant adhesives, low temperature resistant adhesives, water and wet surfaces. 16 types of glue, conductive glue, optical glue, spot welding glue, epoxy resin film, styrofoam, strain glue, soft material bonding glue, sealant, special glue, latent curing glue, civil construction glue.
Epoxy coal asphalt cold-wound anticorrosive spiral pipe polyethylene and epoxy resin have excellent corrosion resistance, but each has its own advantages. Polyethylene is a thermoplastic material, which has good flexibility and bump resistance, because of the durability of non-sexual molecules and the adhesion of steel pipes; Epoxy resins are sexual molecules. There are groups at certain temperatures that are easy to react with steel pipes and have strong adhesion, but because they are thermosetting substances, they are not resistant to bumps. 3PE anti-corrosion steel pipe development advantages and importance With the advancement of [manufacturing 2025, industrial upgrading will become a continuous driving force for China's economic development. Related high-end equipment manufacturing, intelligent manufacturing, and the continuous expansion and promotion of products in emerging industries, the pipeline manufacturing industry also Add to it --3PE anticorrosive steel pipe. Strengthening grade 3PE anti-corrosion steel pipe, this high-end product paved a solid foundation for manufacturing 2025, further optimizing the manufacturing industry structure, increasing the proportion of high industry in the entire manufacturing industry, and gradually phasing out high energy consumption and high pollution industries, as The environmentally friendly 3PE anti-corrosion steel base materials include seamless steel tubes. The characteristics of anti-corrosion spiral pipe with epoxy coal asphalt cold winding:
1. This product is a high-performance anti-corrosion coating, the coating is smooth, dense, hard, strong adhesion, salt and alkali resistance, sea water resistance, soil microbial corrosion resistance, resistance to plant roots and stems penetration are excellent. The composite use of paint and glass fiber cloth can enhance the mechanical properties of the anti-corrosion layer. 2. Normal temperature coating, natural curing, easy construction, manual or mechanical construction, especially suitable for on-site use.
The wall thickness of the anticorrosive spiral tube of epoxy coal asphalt cold-wound zone requires that Ningqiang's few production capacity should take the road of enterprise and partial reorganization. The relevant person in charge of the Office of the Steering Group on the task of reducing excess capacity in the iron and steel industry and upgrading from the difficulties introduced that in order to ensure the unilateral completion of the capacity reduction target obligations by the end of October, after the teleconference of the province’s steel and coal industry to eliminate excess capacity was held on September 14, The province set up four task supervision groups to deepen the frontline supervision of the city (state) and enterprises. Qiu Yuecheng, judging from the market situation, although the enthusiasm for steel production is still there, as steel prices fall, the profit margin is fast, so steel is going through inventory to adapt to the new situation, incurring raw material demand, prices Continue to fall. The possibility of a clear increase in steel production in a short period of time is not great. The steel production capacity that was once resumed will continue to be released. In June, the steel market will face a peak spending season, and the steel market as a whole is in a situation of weak supply and strong demand. The relationship between supply and demand determines the price, and price changes also determine the relationship between supply and demand. The adjustment of the structure is also encouraged by the supply of price signals. The structural adjustment of epoxy coal asphalt cold-wound anticorrosive spiral pipe without encouragement is also very difficult. For example, in the chemical industry, the more price, the more monopoly. Industries with excess capacity involve financial expenditures, taxes, job losses, and social unrest. However, in the past two years, in the face of a global storm, mining giants such as BHP Billiton and Rio Tinto have tried their best to reduce costs. The sharp decrease in external interest and the tightening of pockets by mining companies themselves have brought heavy attacks to the Australian mining industry. In mid-2015, Newport’s research found that the global mining level fell to a historic low. However, “the icy market is showing very early signs of recovery. Fusion winding, curtain method, shower coating, epoxy resin coating, The middle layer is an adhesive, general, corrosion resistance is generally easy to appear, in summary: the outer three-layer structure of poly (E) inner fusion bonded epoxy composite steel pipe is significantly better than the current third-generation single-layer poly inner ring Oxygen anti-corrosion. Coating material: high-density poly, coating material: high-density poly, smooth, roughness 0.0081-0.0091 (tested by the testing center of the Institute of Water Conservancy Research) small loss of head.