With the continuous development of our country's economy, the country is vigorously developing the energy industry. Long-distance API oil and gas pipelines are an important way to ensure energy security. During the anti-corrosion construction process of oil (gas) pipelines, the surface treatment of
1. Petrochemical: Crude oil, refined oil, petrochemical raw material, and finished product delivery pipes and oilfield pipe network.2. Natural gas: submarine and onshore long-distance pipelines; gas pipelines at gas receiving stations; gas fields and urban natural gas pipeline networks.3. Coal: tran
Thin-walled seamless steel pipes are made of steel ingots or solid tube blanks that are perforated into capillary tubes and then made by hot rolling, cold rolling, or cold drawing. Thin-walled seamless steel pipes play an important role in my country's steel pipe industry. Thin-walled seamless steel
(1) Welding connection of 3PE anti-corrosion steel pipeIf there is no need to disassemble, then welding can be used. This is a relatively traditional connection method, with a simple structure, and components of any method can be directly connected; economical materials, no weakening of the cross se
Adjustment of the position of the high-frequency induction coil of the straight seam steel pipe:The excitation frequency of straight seam steel pipe is inversely proportional to the square root of capacitance and inductance in the excitation circuit or proportional to the square root of voltage and
At present, there are more and more types of straight seam steel pipes. With the rapid development of continuous strip rolling production and the advancement of welding and inspection technology, the weld seams continue to improve, the varieties and specifications of welded steel pipes are increasin
3PE anti-corrosion steel pipe is a high-level anti-corrosion steel pipe. It is composed of primer + glue + PE three-layer anti-corrosion. It has high corrosion resistance and high wear resistance. The normal service life is about 30 years. Well, once the anti-corrosion layer is damaged, it will corr
Thick-walled spiral steel pipe is a method of arc welding under the flux layer, which is formed by using the heat generated by the arc burning between the flux and the welding wire under the flux layer, the base metal, and the molten wire flux.During use, the principal stress direction of the thick-
