The production process of prefabricated directly buried insulation pipes with rigid polyurethane foam plastic is roughly as follows: Steel Pipe Treatment: Rust removal is carried out on the working steel pipe to make the surface... [阅读全文]

The production requirements for internally and externally plastic - coated composite steel pipes generally include the following aspects: Base Pipe Selection: Commonly used ones are spiral welded pipes, longitudinal welded pipes, se... [阅读全文]

Pipe materials are the main structural materials of steam pipelines. Appropriate pipe materials need to be selected according to parameters such as the pressure, temperature, and flow rate of the steam, as well as the usage environment. Common pipe materials include carbon steel, alloy steel, and stainless steel, etc. [阅读全文]

What anti-corrosion treatments can be done for spiral submerged arc welded steel pipes? [阅读全文]

The outer 3PE anti - corrosion and inner epoxy plastic - coated composite steel pipe is a kind of pipe with excellent performance. The outside of this steel pipe adopts 3PE anti - corrosion technology. The 3PE anti - corrosi... [阅读全文]

Externally 3PE - coated spiral submerged - arc welded steel pipes mainly include anticorrosive steel pipes with hot - melt epoxy powder coating on the inner wall of the steel pipe. This kind of anticorrosive steel pipe is cal... [阅读全文]

The requirements for spiral submerged arc welded steel pipes used in directly buried hot water insulated pipes and directly buried steam pipes mainly include the following aspects. [阅读全文]

Judging the weld quality of spiral - seam welded steel pipes is a meticulous and crucial process, which involves inspections and evaluations in multiple aspects. The following are the detailed steps and key points on how to judge the weld quality of spiral - seam welded steel pipes. [阅读全文]

Plastic - coated steel pipes have excellent corrosion - resistant properties and can withstand the erosion of various chemical substances, ensuring the long - term stable operation of the pipes in the complex underground environm... [阅读全文]

The spiral seam welded steel pipes in the anti - corrosion coated composite steel pipes need to meet a series of requirements during the manufacturing and usage processes to ensure their stable performance, safety and reliability. [阅读全文]