What material is used for compressed air pipes

What material is used for compressed air pipes

What material is used for compressed air pipes? Many people will be curious about what kind of material is good. Today, the editor of okmarts.com will talk about the pipeline of various materials.

　　 One, galvanized pipe

　　 Welded steel pipe with hot-dip galvanized or electro-galvanized layer on the surface of galvanized steel pipe. Galvanizing can increase the corrosion resistance of the steel pipe and prolong its service life. Galvanized pipes have a wide range of uses. In addition to line pipes for conveying water, gas, oil and other general low-pressure fluids, they are also used as oil well pipes and oil pipes in the petroleum industry, especially offshore oilfields, as well as oil heaters and condensate for chemical coking equipment. Coolers, pipes for coal distillation wash oil exchangers, pipe piles for trestle bridges, pipes for support frames in mine tunnels, etc.

　　Hot-dip galvanized pipe is to make the molten metal react with the iron matrix to produce an alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after the pickling, it is cleaned in a tank with ammonium chloride or zinc chloride aqueous solution or a mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to Hot dip plating tank. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. The matrix of the hot-dip galvanized steel pipe undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a compact structure. The alloy layer is integrated with the pure zinc layer and the steel pipe matrix. Therefore, its corrosion resistance is strong.

　　 Two, carbon steel seamless steel pipe

　　 Carbon steel seamless steel pipe is a kind of long steel. Steel pipes have a hollow section and are used in large quantities as pipelines for conveying fluids, such as pipelines for conveying petroleum, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, steel pipe has the same bending and torsion strength and lighter weight. It is a kind of economical cross-section steel, which is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile transmission shafts, Bicycle racks and steel scaffolding used in construction.

1. Importance of structure. For important structures such as heavy industrial building structures, large-span structures, high-rise or super high-rise civil building structures or structures, consideration should be given to the selection of high-quality seamless steel pipes. For general industrial and civil building structures, the work The nature of the seamless steel pipes are selected ordinary quality.

　　2. Load conditions: Structures that directly bear dynamic loads and structures in areas with strong earthquakes should use seamless steel pipes with good overall performance; generally, seamless steel pipes with lower prices can be used for structures that bear static loads. Compressed air pipeline installation

　　3. Connection method The welding process will produce welding deformation, welding stress and other welding defects, which may cause cracks or brittle fracture in the structure. Therefore, the material requirements of the welded structure should be stricter.

　　4. In the temperature and environment of the structure, seamless steel pipes are easy to be cold and brittle when they are at low temperature. Therefore, structures that work under low temperature conditions, especially welded structures, should use killed steel with good resistance to low temperature brittle fracture. In addition, Taiyuan seamless steel pipes with open-air structures are prone to aging, and seamless steel pipes with harmful media are prone to corrosion, fatigue and fracture. Different materials should also be selected separately.

5. The thickness of the seamless steel pipe is too large, and the number of times of rolling of thin seamless steel pipe is large, the compression ratio of rolling is large, and the compression ratio of seamless steel pipe with large thickness is small, so the precision steel pipe with large thickness is not only low in strength, but also plastic and impact toughness And welding performance is also poor.

　　 Three, aluminum alloy pipe

　　 1. The inner surface is smooth and the self-oxidizing layer is corrosion resistant. The compressed air pressure loss is small and energy saving.

　　 2. The pipeline is beautiful and concise.

　　 3. Easy to install, quick plug-in is the main feature. The installation cost is very low.

　　4. The pneumatic pipe is convenient for disassembly, movement and modification.