Spiral steel pipe requires surface treatment to increase durability:1. The surface of the anti-corrosion spiral tube cleaned with solvent and emulsion can remove the organic matter on the surface of the spiral tube, but it cannot remove the surface rust, oxide scale, welding flux, etc., so cleaning

1. The straight seam steel pipe is bent in the same direction as the weldReason: The normalizing of the weld is not sufficient, and there is thermal stress on the side of the pipe near the weld, so it bends in one direction after cooling.Solution: 1. Adjust the intermediate roller to appropriately i

The special oil pipe is mainly used for the drilling of oil and gas wells and the transportation of oil and gas. It includes oil drilling pipes, oil casings, and oil sucking pipes. Oil drill pipes are mainly used to connect drill collars and drill bits and transmit drilling power. The oil casing is

The construction quality of the steel pipe pile is related to the stability of the building, so some details must be paid attention to during the construction of the steel pipe pile. The main points for attention in the construction of steel pipe piles are:1. Before the construction of the steel pip