3pe anti-corrosion steel pipe

规格：

20-2420

壁厚：

2-20

长度：

12

Anti-corrosion steel pipes have advantages such as bulk density, light strength, high thermal insulation, sound insulation, flame retardancy, cold resistance, anti-corrosion, non-absorbent, and fast construction. They have become an indispensable material for complete insulation, anti-corrosion, waterproofing, sealing and sealing in industries such as construction, transportation, petroleum, chemical industry, electric power refrigeration. Anti-corrosion steel pipes are used in anti-corrosion and cold insulation projects for various indoor and outdoor pipes, including heating pipes, local air-conditioning pipes, chemical industry and other industrial pipes. Overview: Since the birth of synthetic materials in the 1930s, foamed anti-corrosion pipes have been rapidly developing as an excellent thermal insulation and anti-corrosion material. Suitable for various heating, cooling, oil, steam and other pipelines. It is widely used in various pipelines such as heating, cooling, oil and steam.
Anti-corrosion steel pipe/>
r Anti-corrosion steel pipe standards are domestic implementation/standards and will be implemented from the year and month number. 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 determined according to the German standard, which is mainly low-medium density polyethylene. The impact strength of the anti-corrosion layer is greatly improved. /Significantly improve the peel strength and impact resistance index of the anti-corrosion layer, and clearly stipulate the carbon black content of some special materials to ensure the mechanical strength and weather resistance of the anti-corrosion layer, and increase the peel strength of the patching, that is, the heat shrink sleeve Frequency of spot testing of peel strength of shrink tape on primer steel. The main function of the polyethylene surface layer is mechanical protection and anti-corrosion, which has the same function as the traditional two-layer polyethylene anti-corrosion layer. The three-layer polyethylene anti-corrosion layer combines the excellent properties of sintered epoxy powder coating and extruded polyethylene anti-corrosion layers. It combines the interface characteristics and chemical resistance properties of sintered epoxy powder coating with extruded polyethylene. The advantages of the anti-corrosion layer, such as the mechanical protective properties, are combined to significantly improve the respective properties. Therefore, it is very superior as the outer protective layer of buried pipelines
<, r />. The advantages of pipeline anti-corrosion can greatly reduce the project cost. Based on comprehensive calculations, double-tube heating pipes, the use of fiberglass as the protective layer and the use of high-density polyethylene as the protective layer can generally reduce the project cost. Heat consumption is low and energy is saved. Its thermal conductivity is b/??, which is much lower than other pipeline anti-corrosion materials commonly used in the past, and its anti-corrosion effect is ~ times improved. Furthermore, its water absorption rate is very low, about /. The reason for the low water absorption is because the foam has a high closed cell ratio. Low thermal conductivity and low water absorption, combined with high-density polyethylene or fiberglass protective shells with good anti-corrosion layer and surface waterproofing properties, have changed the situation of traditional trench-laying heating pipes wearing wet cotton jackets, greatly increasing the overall heat dissipation of the heating pipes. The heat loss of the heating network is less than the overseas standard requirements. Anti-corrosion, good insulation performance and long operating life. Because the rigid foam anti-corrosion layer is tightly bonded to the outer skin of the steel pipe, it blocks the penetration of air and water and can provide excellent anti-corrosion effect. At the same time, its foaming holes are closed and its water absorption is very small. Both high-density polyethylene shell and fiberglass shell have excellent anti-corrosion insulation and hysteresis properties.
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<, r /> <, r /> brr /><, r /> <, r /> rAt present, coke prices in Shanxi continue to surge sharply, and the production costs of steel companies continue to push up across the board. The market sentiment for further growth is already strong, and coupled with the increase in environmental protection, the The release of output will further promote the spot steel market. Judging from the performance of the spot market, although after two consecutive days of gains of 100 yuan a day, the fear of heights has developed, the prices of some finished products have loosened at high levels, and the futures market also closed with a cross star yesterday. Sensitive change signal, but this short-term change has once again evolved into a strong increase under the stimulus of the Federal Reserve's remarks that it will not raise interest rates for the time being. This increase will also drive spot market operations. It is expected that steel sleeve steel insulation Further increases in steel pipe prices are still a short-term trend.