Hunan straight seam welded pipe丨Hunan straight seam welded pipe price丨Hunan straight seam welded pipe manufacturer

The definition of straight seam pipe: refers to a steel pipe in which the weld seam is parallel to the longitudinal direction of the steel pipe. It is also generally called straight seam welded pipe or straight seam steel pipe. Straight seam pipes are made by rolling long strips of steel strips of a certain specification through high-frequency welding units and using straight seam welding. The specifications of straight-seam pipes are expressed in nominal diameter. According to the wall thickness, they can be divided into two types: thin-walled straight-seam pipes and thick-walled straight-seam pipes. According to the shape, it can be divided into round, square or special-shaped tubes.
Process of straight seam pipe:
Straight seam pipe generally adopts high frequency welding. High frequency welding is a kind of induction welding (or pressure contact welding). It does not require weld filler, no welding spatter, and no welding spatter. It has the advantages of narrow heat-affected zone, beautiful welding shape, and good welding mechanical properties, so it is widely used in the production of steel pipes. According to the principle of electromagnetic induction and the skin effect, proximity effect and eddy current thermal effect of AC charges in the conductor, the steel at the edge of the weld is locally heated to a molten state. After being squeezed by the roller, the butt weld realizes inter-crystal bonding, thereby achieving The purpose of welding is to form a strong straight seam after cooling.
Uses of straight seam pipes:
Straight seam pipes are mainly used in water supply projects, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction in China. For liquid transportation: water supply and drainage. For gas transportation: coal gas, steam, liquefied petroleum gas. Structural use: used as piling pipes, pipes for bridges, docks, roads, building structures, etc.
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