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Tag Archives: Spiral steel pipe

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Welding method of long-distance pipeline

Long-distance pipeline welding method: First, manual welding (1) Arc welding of electrodes is sensitive and cumbersome, and has strong conformability. At the same time, due to the continuous improvement of electrode performance, its deposition efficiency and mechanical properties can still ...

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Connecting method of large diameter spiral steel pipe

The most common way to connect large diameter spiral steel pipe is to weld, but in some projects, it is often used in the form of screw connection, flange connection, socket connection and groove connection. Connection mode Welding and flange ...

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Eliminating the magnetic field generated around the spiral steel pipe

Reasons for the magnetic field of spiral steel pipe In the welding process, welding by DC welding, in welding line, and the position of the welding head due to the high current, resulting in a strong magnetic field, pipe body ...

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Analysis of the causes of the wrong side of spiral steel pipe

Spiral steel pipe in the production process if the production process is unreasonable, machine parameter settings shall be deemed to occur deviation phenomenon, especially large diameter spiral steel pipe, which is often said the wrong side of the phenomenon. After ...

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Production process of spiral steel pipe

Spiral steel pipe is a strip coil as raw material, often warm extrusion molding, automatic double wire-sided submerged arc welding process welded spiral seam steel pipe main production processes are as follows:   Production process of spiral steel pipe 1. ...

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