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The difference between submerged arc welded spiral steel pipe and straight seam high frequency welde

The difference between submerged arc welded spiral steel pipe and straight seam high frequency welde

Keywords :The difference between submerged arc welded spiral steel pipe and straight seam high frequency welde        Update : 2023-07-12        View(s) : 1

The submerged arc welding spiral steel pipe uses continuous welding wire as the electrode and filler metal. During work, a layer of granular flux is covered in the welding area. The arc of the large-diameter spiral pipe burns under the flux layer to melt the end of the welding wire and the local...

The molding process of steel bending pipe and how to prevent aging

The molding process of steel bending pipe and how to prevent aging

Keywords :The molding process of steel bending pipe and how to prevent aging        Update : 2023-07-11        View(s) : 467

Steel bending pipe processing and forming process: 1. Die forging. For socket welding and threaded tees, crosses, elbows, and other small pipe fittings, the shapes are more complicated and should be manufactured by the die forging process, and the die forging blanks should be rolled profiles, ...

Uneven thickness of the anti-corrosion coating on spiral steel pipe and its treatment

Uneven thickness of the anti-corrosion coating on spiral steel pipe and its treatment

Keywords :Uneven thickness of the anti-corrosion coating on spiral steel pipe and its treatment        Update : 2023-07-10        View(s) : 482

Spiral steel pipes are mainly used as fluid pipes and piling pipes. If the steel pipes are used for running water after they are made, they will generally be treated with anti-corrosion treatment on the inner or outer surfaces. The general anti-corrosion methods include 3pe anti-corrosion, epoxy...

Spiral steel pipe dredging common problems

Spiral steel pipe dredging common problems

Keywords :Spiral steel pipe dredging common problems        Update : 2023-07-07        View(s) : 1

When the spiral steel pipe is blocked, it will not only affect our use, but also have a certain corrosion effect on some materials inside the spiral steel pipe, so if it is not dredged in time, it will have a very bad effect after a long time. First is to wash with water and use the pressur...

Manufacturing Technology of Large Diameter Longitudinal Submerged Arc Welded Steel Pipe

Manufacturing Technology of Large Diameter Longitudinal Submerged Arc Welded Steel Pipe

Keywords :Manufacturing Technology of Large Diameter Longitudinal Submerged Arc Welded Steel Pipe        Update : 2023-07-06        View(s) : 407

Large-diameter straight seam submerged arc steel pipes are mainly responsible for pipeline transportation of marine and land oil and gas, oil and natural gas, coal and ore pulp, etc., especially suitable for the "West-to-East Gas Transmission" project currently under construction in my country, ...

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