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Application of spiral steel pipe in the urban pipeline

Application of spiral steel pipe in the urban pipeline

Keywords :Application of spiral steel pipe in the urban pipeline        Update : 2022-03-30        View(s) : 758

Spiral steel pipe is usually used in urban drainage pipelines. The use of spiral steel pipes in urban drainage pipeline systems is the comprehensive arrangement of urban water supply, water supply, water use, drainage, sewage treatment, and other pipeline systems and their various components w...

Large diameter steel pipe connection method and cleaning method

Large diameter steel pipe connection method and cleaning method

Keywords :Large diameter steel pipe connection method and cleaning method        Update : 2022-03-29        View(s) : 849

Cleaning method of large diameter steel pipe : 1. Shot blasting and rust removal: The high-power motor drives the blades to rotate at a high speed so that abrasives such as steel sand, steel shot, wire segments, and minerals are sprayed and blasted on the surface of the steel pipe under the act...

Analysis of Corrosion Causes of Steel Pipes

Analysis of Corrosion Causes of Steel Pipes

Keywords :Analysis of Corrosion Causes of Steel Pipes        Update : 2022-03-28        View(s) : 868

Corrosion of steel pipes is mainly divided into two categories: internal corrosion and external corrosion. External corrosion is mainly due to the corrosion caused by the connection between the pipeline material and the external environment such as soil, seawater, atmosphere, and other corr...

Comparison of advantages and disadvantages of spiral steel pipe and straight seam steel pipe welding

Comparison of advantages and disadvantages of spiral steel pipe and straight seam steel pipe welding

Keywords :Comparison of advantages and disadvantages of spiral steel pipe and straight seam steel pipe welding        Update : 2022-03-25        View(s) : 1184

The welding seam of the spiral steel pipe is longer than that of the straight seam steel pipe . If the pipe length is L, the welding seam length is L/cos(θ). The vast majority of steel pipe defects are concentrated in the weld and heat-affected zone. The long weld means that the probability of ...

The welding process of thick-walled steel pipe

The welding process of thick-walled steel pipe

Keywords :The welding process of thick-walled steel pipe        Update : 2022-03-24        View(s) : 780

Welding method: When welding thick-walled steel pipes , first clean the oil, paint, water, rust, etc. of the welding joints, and then open the grooves according to the wall thickness. It is the gap of the product, which is generally 1-1.5 times the diameter of the electrode or wire. If the groove...

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